JP5371691B2 - Beam reinforcement study result output system - Google Patents

Description

  The present invention relates to a beam formation examination result output system that automatically provides a screen with a reinforcing method for satisfying a predetermined condition of a beam formation of an existing beam provided in a wooden house along with refurbishment.

  In general, a wooden house is constructed by placing a pillar on a base made of wood placed on an inverted T-shaped fabric foundation and incorporating a beam, a wall, a ceiling, and the like.

  On the other hand, in recent years, renovation has become popular, expanding the second floor, remodeling the room, or installing a new unit bath. In addition, solar power generation has become popular, and there is an increasing demand for installing solar panels on the roof.

  For example, when installing a solar panel on a roof, it is necessary to examine (beam formation) a beam applied to a pillar that supports the ceiling.

  In other words, the roof load W, the bending stress σb of the beam, the shear stress τ, the deflection δ, etc. are examined to determine whether the current beam formation satisfies all of them, and if not, the beam change is changed. Or plywood, splint, etc. were being promoted.

JP 2006-83540 A

  However, there are a plurality of beam types and methods for satisfying the roof load W, the bending stress σb of the beam, the shearing stress τ, the deflection δ, and the like. For example, the construction engineer must determine the beam type and construction method depending on whether there is a splint or no splint.

  Then, it is desirable to present to the construction owner that the determined beam type and method satisfy all of the above-described roof load W, beam bending stress σb, shear stress τ, deflection δ, and the like.

  Moreover, it is cheap for the contractor as much as possible, and I want to know the reinforcement method (beam type and construction method) speedily.

  The present invention has been made to solve the above-described problems. When it is necessary to change a beam in extension and renovation or the like, the roof load W, the bending stress degree σb of the beam, the shearing stress degree τ, the deflection δ, etc. The purpose of this study is to obtain an output system for studying beam stiffeners that can promptly present satisfying and inexpensive beam types and methods.

The present invention is a beam formation examination result output system that automatically provides a screen with a reinforcing method for satisfying a predetermined condition of a beam formation of an existing beam provided in a wooden house along with the renovation of the wooden house. There,
First storage means for storing a design drawing in which the existing beam exists;
Second storage means for storing a beam forming reinforcement table without joint and a beam forming reinforcement table with joint, in which a reinforcing method is associated with the beam;
(A). Beam formation examination conditions including the span, beam size, tree type, building weight on the beam to be examined, gradient of the building, presence / absence of the joint of the beam to be examined are set in the design drawing displayed on the screen Means to read this every time
(B). Each time the beam formation study conditions are read, the cross-sectional area, section modulus, section secondary moment, allowable bending stress, allowable shear stress, and Young's modulus of the beam to be examined based on the beam formation evaluation conditions are fundamental. Means for obtaining parameter information;
(C). Each time the beam formation study conditions are read, based on the beam formation study conditions, a means for calculating a bending stress level, a shear stress level, and a deflection rate;
(D). Means for determining whether each of the bending stress level, the shear stress level, and the deflection rate satisfy all the predetermined conditions;
(E). When it is determined that all of the above are not satisfied, the beam is changed to a new beam having a longer dimension than the beam formation of the read beam formation examination condition, and a new beam formation examination condition including this is changed. Means to consider,
(F). When determining that all of the above are satisfied, reading the beam formation of the new beam formation examination condition that has been satisfied, and determining whether or not there is a joint of the beam formation examination condition;
(G). If there is a joint, means for extracting information on the reinforcement method corresponding to the new beam formation from the beam formation reinforcement table with the joint and displaying it on the screen;
(H). In the case where there is no joint, the gist is provided with means for extracting information on the reinforcing method corresponding to the new beam formation from the beam forming reinforcement table without joint and displaying it on a screen.

  As described above, according to the present invention, when it is necessary to examine a beam in extension and renovation of a wooden house, when the beam formation examination condition is input, the beam to be examined is the roof load W, the bending stress degree σb of the beam, It is determined whether all of the shear stress τ and the deflection δ satisfy the predetermined condition.

  If these three do not meet all of the predetermined conditions, a new formation that satisfies all of these conditions is obtained, and the reinforcement method for making this new beam is automatically extracted from the joint presence / absence table. Display on the screen.

  For this reason, even if it is not an expert, the beam reinforcement method according to the presence or absence of a joint can be shown speedily.

It is a schematic block diagram of the beam forming reinforcement examination result output system of this invention. It is a schematic flowchart explaining the beam reinforcement reinforcement examination result output system of this invention. It is explanatory drawing explaining a beam formation. It is explanatory drawing explaining the example of calculation of the reinforcement method by this invention. It is a schematic block diagram of the beam reinforcement reinforcing material examination result output system of Embodiment 1. 3 is a flowchart for explaining the operation of the beam reinforcement reinforcing material examination result output system according to the first embodiment. 3 is a flowchart for explaining the operation of the beam reinforcement reinforcing material examination result output system according to the first embodiment. It is explanatory drawing explaining the change of beam formation of beam formation examination conditions. It is explanatory drawing of a beam forming table. It is explanatory drawing explaining the outline of a beam forming reinforcement table. It is a schematic block diagram of the beam reinforcement material examination result output system of Embodiment 2. 10 is a flowchart for explaining the operation of the beam reinforcement reinforcing material examination result output system according to the second embodiment. 10 is a flowchart for explaining the operation of the beam reinforcement reinforcing material examination result output system according to the second embodiment. 10 is a flowchart for explaining the operation of the beam reinforcement reinforcing material examination result output system according to the second embodiment. It is explanatory drawing explaining the beam forming reinforcement table of implementation hair position sub2. It is explanatory drawing explaining calculation of the reinforcement method by this Embodiment 2. FIG. It is explanatory drawing explaining calculation of the reinforcement method by this Embodiment 2. FIG. It is explanatory drawing explaining other embodiment. It is explanatory drawing explaining other embodiment. It is explanatory drawing explaining other embodiment. It is explanatory drawing explaining other embodiment. It is explanatory drawing explaining other embodiment.

  First, the outline of the beam reinforcement reinforcing material examination result output system of the present invention will be described.

  FIG. 1 is a schematic configuration diagram of a beam reinforcement reinforcing material examination result output system of the present invention. The beam reinforcing material examination result output system includes a display unit 1, a computer main unit 2, a keyboard (not shown), a mouse (not shown), and the like.

  And this function of the computer main unit 2 is a three-dimensional design drawing (Excel sheet R1, R2,...) Corresponding to the type of ceiling (which may be a floor) to be examined on the beam formation examination input screen 4i of the display unit 1. Sub-screen 3 for simply inputting the span L of the beam Ai to be examined, the dominant layer Bi, etc., and inputting the beam formation examination condition Ci (beam size (beam formation × width...)) (Also referred to as a study condition input screen) and input necessary information (roof load, amount of snow).

  Then, it is determined whether or not the existing beam formation (also referred to as beam formation KWi) satisfies all of the bending stress degree σb, the shear stress degree τ, the deflection rate δ, and the like. Extract (beam type and construction method) from the beam reinforcement table.

  If one of the bending stress σb, the shear stress τ, and the deflection rate δ does not satisfy the predetermined condition, a new beam forming that satisfies the bending stress σb, the shear stress τ, and the deflection rate δ is obtained. Then, an inexpensive reinforcement method (beam type, construction method) that satisfies the obtained beam formation (also referred to as necessary beam formation WTi) is automatically extracted from the beam formation reinforcement table.

  The beam formation review input screen 4i described above is a beam formation review input screen 4a (selection of R1: also referred to as an input screen for R1) when a wall or the like does not exist on the beam Ai to be examined (also referred to as a hut beam); An inner wall is placed on the beam Ai to be examined and the beam formation examination input screen 4b of the inner wall orthogonal to the two directions (select R2: also referred to as an input screen for R2) and the inner wall is placed on the beam Ai to be examined 1 A beam formation review input screen 4c (selecting R3: also referred to as an input screen for R3) of the inner wall orthogonal to the direction, and a beam formation review input screen 4d in which only the floor (ceiling board) is placed on the beam Ai to be examined. (Select R4: also called input screen for R4).

  In addition, the beam formation examination input screen 4i includes a beam formation examination input screen 4e (in which R5 is selected: also referred to as an input screen for R5) and an outer wall on the beam Ai to be examined. Beam formation examination input screen 4d (R6 is selected: also called R6 input screen) and beam formation examination input screen where the beam on which the outer wall is placed on the beam Ai to be examined is applied from two directions 4e (select R7: also referred to as input screen for R7) and a beam formation input screen 4f (select R8: also referred to as R8 input screen) in which the inner wall is placed on the beam Ai to be examined and the outer walls are orthogonal to each other. Beam formation study input screen 4g (R9 is also selected as input screen for R9) with the outer wall orthogonal to beam Ai, and beam formation study input screen 4h (select R10: input for R10) of the system bus to be examined Etc.).

  And beam formation examination input screen 4a, beam formation examination input screen 4b, beam formation examination input screen 4c, beam formation examination input screen 4d, beam formation examination input screen 4e, beam formation examination input screen 4g,... The input screen 4h and the like include a beam formation examination condition reading section, a load calculation section, a reference parameter calculation section, a fulcrum reaction force / bending moment calculation section, a stress degree / deflection calculation section, an examination determination section, A beam forming update unit, a beam type determining unit, a beam forming setting unit, and the like are associated with each other.

  Further, these beam formation examination input screens will be described later using specific examples.

  On the other hand, a program described below is installed in the computer main unit 2 in order to realize the above-described functions. In FIG. 1, the configuration of this program will be described with reference to a block diagram.

  That is, the computer main unit 2 includes the selection sheet determination unit 10, the first beam formation review unit 11, the second beam formation review unit 12, the third beam formation review unit 13,. The beam formation examination part 20 etc. are provided. These are processing units that perform processing corresponding to each of the plural types of beam formation examination input screens.

  FIG. 2 is a schematic flowchart for explaining the beam reinforcement reinforcing material examination result output system of the present invention.

Step S1:
The selection sheet determination unit 10 determines the types of the tags R1 to Rn displayed on the display unit 1, and the first beam formation examination unit, the second beam formation examination unit, ... nth corresponding to this selection. The beam forming examination section is activated (S1).

Step S2 to Step S9:
The first beam forming examination unit 11 to the n-th beam forming examination unit 20 are activated in accordance with the selection of the tags R1, R2,..., The design drawing of the building to be examined (the top including the beam Ai to be examined) Part) is extracted from the memory 22 and displayed three-dimensionally on the screen, and the beam formation examination condition Ci (existing beam size) input on the sub-screen 3 of the beam formation examination input screen 4i (4a or 4b...). Based on the tree type, roof load, snow cover, solar panel, etc.), the roof load W, the bending stress σb of the beam, the shear stress τ, the deflection δ, etc. are obtained, and these satisfy the predetermined conditions. Determine whether or not.

  If all of these are not satisfied, the beam forming table 23 (beam forming table) sequentially selects a beam forming with a small beam forming WTi, and generates a beam size (see FIG. 3) with the selected beam forming WTi. The roof load W, the bending stress σb of the beam, the shearing stress τ, the deflection δ, and the like are obtained again to determine whether these satisfy a predetermined condition.

  In addition, when all are satisfied, a reinforcing method corresponding to the beam forming WTi when satisfied is extracted from the beam forming reinforcing pattern table 25. For example, “2CS20 * 4.0 + W150” is extracted.

  That is, a reinforcing method (beam type, construction method) as shown in FIG. 4 is automatically sent out. FIG. 4 (a) shows a method of plying existing beams with a splint, which is shown with diagonal lines to emphasize the splint portion.

  FIG. 4B is a method for constructing a steel composite beam, and FIG. 4C is a cross-sectional view. That is, FIG.4 (b) shows making it a lightweight groove type copper on a side beam + both sides. FIG. 4 (c) shows that the splint (W150) is connected to the existing beam (105) to make lightweight groove type copper (2CL) with a thickness (* 4.0) on both sides.

Step S10:
Next, it is determined whether or not to end, and if not, the process returns to step S1.

  Below, it demonstrates as Embodiment 1, 2, 3, ... for every building kind according to arrangement | positioning of the wall mounted on the beam Ai examined.

<Embodiment 1>
FIG. 5 is a schematic configuration diagram of the beam reinforcement reinforcing material examination result output system according to the first embodiment. In the first embodiment, when only the ceiling is placed on the beam Aa to be examined (also referred to as a hut beam study), for example, when installing a photovoltaic panel on the roof, the beam formation KWa of the beam Aa to be examined is set. This is an example to be examined, and is processing of the first beam forming examination unit 11 when R1 in FIG. 1 is selected.

  As shown in FIG. 5, the first beam formation examination processing unit 11 includes a beam formation examination condition reading unit 30, a load calculation unit 31, a reference parameter calculation unit 32, a fulcrum reaction force / bending moment calculation unit 33, A stress degree / deflection calculation unit 34, a study determination unit 35, a beam formation update unit 36, a beam type determination unit 37, a beam formation setting unit 38, and the like are included.

  The beam formation examination condition reading unit 30 monitors whether or not the beam formation examination condition ca is input in the display unit 1. When the beam formation examination condition Ca is input, the beam formation examination condition Ca is stored in the memory 42. To do.

  The load calculation unit 31 reads the roof load (heavy roof) of the beam formation examination condition Ca stored in the memory 42, extracts the reference value corresponding to the heavy roof from the memory 41, calculates the load W for the time being, Store in the memory 40. The reference value stored in the memory 41 is a fixed value determined in advance when a heavy roof or a solar panel is used, and is a numerical value determined based on experience values and experimental values.

  The reference parameter calculation unit 32 reads the existing beam size (beam formation KWa × width), tree type, span, and the like stored in the memory 42, and reads the cross-sectional area A, the cross-section coefficient Z, the cross-sectional secondary moment I, and the allowable bending stress level. Fb, allowable shear stress Fs, Young's modulus E, and the like are calculated using various reference values stored in the memory 41 and stored in the memory 43.

  The fulcrum reaction force / bending moment calculation unit 33 reads the equal load W stored in the memory 40 and the beam span L stored in the memory 42, and uses the equal load W, the beam span L, and the like. Based on this, the fulcrum reaction force R and the maximum bending moment Mo are calculated and stored in the memory 44.

  The stress degree / deflection calculation unit 34 reads the bending moment Mo of the memory 44 and the section modulus Z of the memory 43 to calculate the bending stress degree σb, and the fulcrum reaction force R of the memory 44 and the sectional area A of the memory 43 , The shear stress degree τ is calculated, and the equal load W in the memory 40, the beam span L in the memory 42, and the Young's modulus E in the memory 43 are read to calculate the deflection rate δ.

  The examination determination unit 35 reads the bending stress degree σb, the shear stress degree τ, and the deflection rate δ, determines whether or not all of them satisfy a predetermined condition, and outputs the determination result.

  The beam updating unit 36 sets the number Yi from the lowest record number Yi of the beam forming table 23 (memory), and reads the beam corresponding to the number Yi.

  When the bending stress degree σb, the shearing stress degree τ, and the deflection rate δ satisfy the predetermined conditions, the beam type determining unit 37 changes the beam forming examination condition Ca stored in the memory 42. The reinforcing method mi written in the lattice at the intersection of the beam-sized beam forming WTa and the existing beam-sized beam forming Kwa is read and set as the determined reinforcing method mi.

  The beam formation setting unit 38 changes the beam formation of the existing size of the sub screen 3a to a new beam formation, and reads the beam formation examination condition Ca including the new beam formation WTa of the sub screen 3a. Pass to 30.

  The operation of the beam stiffener study result output system configured as described above according to the first embodiment will be described with reference to the flowcharts of FIGS.

  In the present embodiment, as shown in FIG. 5, the existing beam span L is input as 3640 mm, the control width 910 mm, the beam interval 910 mm, and the building weight (input on the sub-screen 3a of the beam formation review input screen 4a) Roof load) is input as heavy load, solar power is input as the amount of snow, roof slope is input as 5.0 / 10, existing beam size is input as beam formation 150 × width 105, and tree species is Yonematsu (Generically referred to as beam formation examination condition Ca).

  The beam formation examination condition reading unit 30 monitors whether or not the beam formation examination condition ca is input (S1). When the beam formation examination condition Ca is input, the beam formation examination condition Ca is read and stored in the memory 42 (see FIG. 8) (S2).

  Next, the standard parameter calculation unit 32 reads the existing beam size (beam formation KWa × width), tree type, span, etc. stored in the memory 42, and reads the cross-sectional area A, the cross-section coefficient Z, the cross-sectional secondary moment I, the allowable bending The stress degree Fb, the allowable shear stress degree Fs, and the Young's modulus E are calculated and stored in the memory 43 (S3). At this time, calculation is performed using various reference values stored in the memory 41.

  Next, the load calculation processing 31a of the load calculation unit 31 reads the roof load (heavy roof) of the beam formation examination condition Ca stored in the memory 42, and extracts the reference value corresponding to the heavy roof from the memory 41. The load W is calculated for the time being (S4). The load W is stored in the memory 40 for the time being.

  Next, the fulcrum reaction force / bending moment calculation unit 33 reads the equally divided load W stored in the memory 40 and the beam span L to be examined stored in the memory 42 to calculate the fulcrum reaction force R ( S5).

  Next, the fulcrum reaction force / bending moment calculation unit 33 reads the equal load W stored in the memory 40 and the beam span L stored in the memory 42, and calculates the maximum bending moment Mo (S6). ). These fulcrum reaction force R and maximum bending moment Mo are stored in the memory 44.

  Next, the stress / deflection calculation unit 34 reads the bending moment Mo of the memory 44 and the section modulus Z of the memory 43, calculates the bending stress σb, and stores it in the memory 46 (S7).

  Next, the examination determination unit 35 reads the bending stress level σb obtained by the stress level / deflection calculation unit 34 and the allowable bending stress level Fb in the memory 43, and determines whether the allowable bending stress level Fb is equal to or greater than the bending stress level σb. Is considered (first predetermined condition) (S8). If it is above the allowable bending stress Fb, it is determined as OK. Moreover, if it is below the allowable bending stress degree Fb, it will determine with NG.

  Next, the stress / deflection calculation unit 34 reads the fulcrum reaction force R of the memory 44 and the cross-sectional area A of the memory 43, calculates the shear stress τ, and stores it in the memory 46 (S9).

  Next, the examination determination unit 35 reads the shear stress τ in the memory 46 and the allowable shear stress Fs in the memory 43, and determines whether the allowable shear stress Fs is equal to or greater than the shear stress τ (second predetermined condition). (S10).

  If the allowable shear stress Fs is greater than or equal to the shear stress τ, it is determined to be OK, and if it is less than that, it is determined to be NG.

  Next, the stress degree / deflection calculation unit 34 reads the equal load W of the memory 40, the beam span L of the memory 42, and the Young's modulus E of the memory 43, and calculates the deflection rate δ (S11).

  Next, the examination determination unit 35 determines (third predetermined condition) whether or not the obtained deflection rate δ is L / 250 or more (S12). If it is below, it is OK if it is above, and NG if it is below.

  Each of the above-described examination expressions (formulas for determining a predetermined condition) of the bending stress degree σb, the shearing stress degree τ, and the deflection rate δ is stored in the memory 47.

  Then, as shown in FIG. 7, the examination determination unit 35 determines whether all of the examination results of the bending stress degree σb, the deflection rate δ, and the shear stress degree τ are OK or at least one is NG (S15).

  If it is determined in step S15 that all are OK, the beam type determination unit 37 is activated (S16).

  If at least one NG is determined in step S15, the beam updating unit 36 is activated (S17).

  The beam forming update unit 36 allocates the beam forming table 23 with the activation (S23). In this beam forming table 23, beam forming WTa (105, 120, 180,...) Is made to correspond to the record number Yi (Y1, Y2, Y3,...) As shown in FIG.

  Then, the beam updating unit 36 sets the number Yi from the lowest record number Yi of the beam forming table 23 (S18). When the beam forming table 23 of FIG. 9 is used, Y1 is set.

  Next, the beam forming update unit 36 reads the beam forming WTa of the set record number Yi and passes it to the beam forming setting unit 38 (S19). For example, when Y1 is set, Y1 = 105, when Y2 is set, Y2 = 120,..., When Y7 is set, the beam forming WTa of Y7 = 270 is read.

  Next, the beam forming setting unit 38 changes the beam size of the existing size of the sub screen 3a to the passed beam forming (105, 120, 150... 270, or 450) (S20), and this sub screen 3a. The beam forming examination condition Ca including the new beam forming WTa is transferred to the beam forming examination condition reading unit 30 and the process returns to step S1 shown in FIG. 6 (S21).

  That is, when the new beam formation WTa is set by the beam formation setting unit 38, the beam formation examination condition reading unit 30 adds a new record to the input beam formation examination condition Ca as shown in FIG. The changed beam size (beam formation 270 × width 105) is added, and the existing beam size is changed to the new changed beam size.

  As a result, the load calculation unit 31, the reference parameter calculation unit 32, the fulcrum reaction force / bending moment calculation unit 33, and the stress degree / deflection calculation unit 34 re-reference with the new beam formation extracted from the beam formation table 23. Calculate parameters, load for the time, fulcrum reaction force, maximum bending moment, bending stress level, shear stress level, and deflection rate, and in the examination determination unit 35, the bending stress level, shear stress level, and deflection rate are all OK or NG. One of these is determined.

  On the other hand, when the bending stress level, the shearing stress level, and the deflection rate are all OK in step S15 and the beam type determining unit 37 is activated, the following processing is performed.

  If OK, the beam type determining unit 37 changes the beam forming examination condition Ca stored in the memory 42, the beam forming WTa (for example, 270) of the beam size, and the beam forming Kwa (150) of the existing beam size. Are read (S22, S23).

  Then, the reinforcement method mi written in the lattice at the intersection of the beam size Kwa of the existing size and the beam size WTa of the changed beam size in the beam reinforcement table 23 is read (S24), and the screen is displayed as the determined reinforcement method mi. (S25).

  For example, when the beam forming reinforcement table 23 is generated as shown in FIG. 10, if the beam size KWa of the existing beam size is 180 and the required beam size WTa is 270, “2CS20 * W150” is extracted. To display.

  The beam forming reinforcement table 25 includes a table with and without a joint. A beam forming reinforcement table that can be used with or without a joint will be described in the second embodiment.

<Embodiment 2>
FIG. 11 is a schematic configuration diagram of a beam reinforcement reinforcing material examination result output system according to the second embodiment. In the second embodiment, when the inner wall is placed on the beam to be examined and the inner wall is orthogonal to the two directions, for example, when installing a photovoltaic power generation panel on the roof, an example of examining the beam formation KWb of the beam Ab to be examined This is the processing of the second beam forming examination unit 12 when R2 in FIG. 1 is selected.

  As shown in FIG. 11, the second beam formation examination processing unit 12 is similar to FIG. 5, a beam formation examination condition reading unit 30, a reference parameter calculation unit 32, a fulcrum reaction force / bending moment calculation unit 33, In addition to the stress degree / deflection calculation unit 34, the examination determination unit 35, the beam formation update unit 36, the beam type determination unit 37, the beam formation setting unit 38, and the like, a load calculation unit 50, a joint determination unit 51, and the like. Etc.

  Moreover, the beam forming reinforcement table 53 in the case of having a joint and without the joint is provided.

  The load calculation unit 50 includes a concentrated load calculation process 50a, an equal fruit juice calculation process 50b, and a deflection rate calculation process 50c.

  The concentrated load calculation process 50a calculates the concentrated load P using the roof load and the wall load applied to the beam to be examined.

  The equivalent load calculation process 50b calculates the equivalent load W using the wall load and floor load on the beam.

  The deflection rate calculation process 50c calculates a uniform distribution load W ′ for deflection examination from the wall load and floor load on the beam.

  The joint determination unit 51 determines whether or not a joint is present and a joint is added to the beam formation examination condition Cb of the memory 42. The reinforcement table 53a is assigned, and when there is a joint, the composite reinforcement table 53b with a joint is assigned, and the assigned table is notified to the beam type determining unit. This beam reinforcement table 53 will be described later.

  The operation of the beam reinforcing member examination result output system of the second embodiment configured as described above will be described with reference to the flowcharts of FIGS. 12, 13, and 14.

  In the present embodiment, as shown in FIG. 11, the existing beam span L is input as 3640 mm, the control width 1820 mm, the beam interval 1820 mm, and the building weight (input on the sub-screen 3 b of the beam formation review input screen 4 b ( Roof load) is input as light roof, snow power is input as photovoltaic power generation, roof slope is input as 4.0 / 10, existing beam size is input as beam formation 120 × width 105, tree species is Yonematsu And that no joint is input to the beam (collectively referred to as beam formation examination condition Cb).

  The beam formation examination condition reading unit 30 monitors whether or not the beam formation examination condition Cb is input (S30). When the beam formation examination condition Cb is input, the beam formation examination condition Cb is read and stored in the memory 42 (S31).

  Next, the standard parameter calculation unit 32 reads the existing beam size (beam formation KWa × width), tree type, span, etc. stored in the memory 42, and reads the cross-sectional area A, the cross-section coefficient Z, the cross-sectional secondary moment I, the allowable bending The stress degree Fb, the allowable shear stress degree Fs, and the Young's modulus E are calculated and stored in the memory 43 (S32). At this time, calculation is performed using various reference values stored in the memory 41.

  Next, the concentrated load calculating process 50a of the load calculating unit 50 calculates the concentrated load P using the roof load and the wall load (S33), and the load calculating process 50b for the time being the wall load and floor load on the beam. For the time being, the load W is calculated (S34), and the deflection rate calculation processing 50c calculates the uniform distribution load W ′ for deflection examination from the wall load and floor load on the beam (S35). The concentrated load P, the equivalent load W, and the uniform distribution load W ′ for deflection examination are stored in the memory 40.

  Next, the fulcrum reaction force / bending moment calculation unit 33 reads the centralized P and the equally divided load W stored in the memory 40 and the beam span L to be examined stored in the memory 42 to read the fulcrum reaction. The force R is calculated (S36).

  Next, the fulcrum reaction force / bending moment calculation unit 54 reads the concentrated load P and the equal load W stored in the memory 40 and the beam span L stored in the memory 42, and the maximum bending moment Mo Is calculated (S37). These fulcrum reaction force R and maximum bending moment Mo are stored in the memory 44.

  Next, the stress / deflection calculation unit 55 reads the bending moment Mo of the memory 44 and the section modulus Z of the memory 43, calculates the bending stress σb, and stores it in the memory 46 (S38).

  Next, the examination determination unit 35 reads the bending stress level σb obtained by the stress level / deflection calculation unit 55 and the allowable bending stress level Fb of the memory 43, and determines whether the allowable bending stress level Fb is equal to or higher than the bending stress level σb. Is examined (determined) (S39). If it is above the allowable bending stress Fb, it is determined as OK. Moreover, if it is below the allowable bending stress degree Fb, it will determine with NG.

  Next, the stress / deflection calculation unit 55 reads the fulcrum reaction force R of the memory 44 and the cross-sectional area A of the memory 43, calculates the shear stress τ, and stores it in the memory 46 (S40).

  Next, the examination determination unit 35 reads the shear stress τ in the memory 46 and the allowable shear stress Fs in the memory 43, and determines whether the allowable shear stress Fs is equal to or greater than the shear stress τ (S41).

  If the allowable shear stress Fs is greater than or equal to the shear stress τ, it is determined to be OK, and if it is less than that, it is determined to be NG.

  Next, the stress / deflection calculation unit 55 reads the concentrated load P and the equal load W in the memory 40, the beam span L in the memory 42, and the Young's modulus E in the memory 43, and calculates the deflection rate δ ( S42).

  Next, the examination determination unit 35 determines whether the obtained deflection rate δ is L / 250 or more (S43). If it is below, it is OK if it is above, and NG if it is below.

  Each of the above formulas for examining the bending stress σb, the shear stress τ, and the deflection rate δ is stored in the memory 47.

  Then, as shown in FIG. 13, the examination determination unit 35 determines whether all of the examination results of the bending stress degree σb, the deflection rate δ, and the shear stress degree τ are OK or at least one is NG (S45).

  If it is determined in step S45 that all are OK, the beam type determination unit 37 is activated (S46).

  If at least one NG is determined in step S45, the beam updating unit 36 is activated (S47).

  The beam forming update unit 36 allocates the beam forming table 23 (see FIG. 9) with the activation (S48). Then, the beam updating unit 36 sets the number Yi from the lowest record number Yi of the beam forming table 23 (S49).

  Next, the beam forming update unit 36 reads the beam forming WTb of the set record number Yi and passes it to the beam forming setting unit 38 (S50).

  Next, the beam formation setting unit 38 changes the beam formation of the existing size of the sub screen 3b to the beam formation (105, 120, 150... 270... Or 450) passed from the beam formation update unit 36. (S51).

  Then, the beam formation examination condition Cb including the new beam formation WTb on the sub-screen 3b is passed to the beam formation examination condition reading unit 30 and the process returns to step S30 shown in FIG. 2 (S52).

  In other words, when the new beam formation WTb is set by the beam formation setting unit 38, the beam formation examination condition reading unit 30 adds a new record to the input beam formation examination condition Cb as shown in FIG. A changed beam size (for example, beam formation 270 × width 105) is added, and the existing beam size is changed to the new changed beam size.

  As a result, the reference parameter, the load for the time being, the fulcrum reaction force, the maximum bending moment, the bending stress level, the shear stress level, and the deflection rate are calculated again with the new beam formation, and the examination determination unit 35 again determines the bending stress level, Whether the shear stress degree and the deflection rate are all OK or NG is determined.

  On the other hand, in step S45, when the bending stress level, the shearing stress level, and the deflection rate are all OK and the beam type determining unit 37 is activated, the following processing is performed.

  If OK, the beam type determining unit 37 changes the beam forming examination condition Cb stored in the memory 42, the beam forming WTb (for example, 270) of the changed beam size, and the beam forming Kwb (150) of the existing beam size. Are read (S55, S56).

  And the joint determination part 51 determines whether the joint existence and the joint absence are added to the beam formation examination condition Cb of the memory 42 (S57).

  If no joint is added in step S57, the joint-free composite beam reinforcing table 53a of the beam forming reinforcing table 53 is allocated (S58).

  As shown in FIG. 15, the beam reinforcing table 53 includes a beam forming reinforcing table 53a without a joint and a beam forming reinforcing table 53b with a joint, and the beam type written in each lattice is obtained by an experiment. It is a thing.

  The beam type determining unit 37 reads the reinforcing method mb written in the lattice at the intersection of the existing size beam forming Kwb and the changed beam size beam forming WTb of the joint non-beam forming reinforcing table 53a (S59). Is displayed on the screen as the determined beam type mb (S60).

  For example, in the case where the joint-free beam reinforcing table 53a is generated as shown in FIG. 15, when the beam size KWb of the existing beam size is 180 and the required beam size WTb is 210, “+ W150P2” is extracted. To display.

  On the other hand, if it is determined in step S57 that a joint is present, the beam type determining unit 37 allocates the beam forming reinforcing table 53b (S62).

  The beam type determining unit 37 reads the reinforcing method mbp written in the lattice at the intersection of the existing beam size Kwb and the changed beam size beam size WTb of the joint-free beam strength reinforcing table 53b (S63). Is displayed on the screen as the determined beam type mbp (S64).

  For example, in the case where the joint-free beam reinforcing table 53b is generated as shown in FIG. 15, when the beam size KWb of the existing beam size is 180 and the required beam size WTb is 210, “2CS20 * 4.0 + W150” "Is extracted and displayed.

  That is, according to this embodiment, the beam type and the reinforcing method shown in FIGS. 16 and 17 can be automatically obtained. FIG. 16 (a) shows that reinforcement is performed with plywood, FIG. 16 (b) shows the case where both surfaces are steel plywood, and reinforcing beams 120 to 240 are shown.

  FIG. 16C shows that the reinforcing method is 2CL25 * 4.0 + W00, and FIG. 17 shows the specific reinforcing method.

  17A shows a reinforcement method of 2CL20 * 4.0 + W150, FIG. 17B shows a reinforcement method of 2CL20 * 4.0, and FIG. 17C shows a reinforcement method of 2CL25 * 4.0 + W180. FIG. 17D shows a reinforcing method of 2CL20 * 4.5 + W150.

<Other embodiments>
18-22 is explanatory drawing explaining other embodiment, The reinforcement method of the beam considered automatically also in the building shown in these figures is computable.

FIG. 18 shows a design drawing on the screen when the inner wall is placed on the beam to be examined and is applied from one direction, and the beam formation examination condition Ci is input, and the beam type and construction method are determined by the above-mentioned processing units. It shows that it was obtained. In FIG. 18, when the existing beam size is 105 × width 105, the required beam size is 360 × width 105, and the construction method shows that 2CL25 * 4.0 + W180 can be extracted from the beam reinforcement table. ing.

  FIG. 19 shows a design drawing when the inner wall is placed on the beam to be examined on the screen, and shows that the beam type and construction method are obtained by the above processing units by inputting the beam formation examination condition Ci. ing. In FIG. 19, when the existing beam size is 120 × width 105, the required beam size is 360 × width 105, and the construction method shows that + W270P1A can be extracted from the beam reinforcement table.

FIG. 20 shows a design drawing when examining the beam formation of the beam to be system bused, and shows that the beam type and construction method are obtained by each of the above processing units by inputting the beam formation examination condition Ci. . In FIG. 20, the required beam size is beam formation 360 × width 105,
The construction method indicates that + W240P1B can be extracted from the beam reinforcement table.

In addition, in the cases as shown in FIGS. 21 and 22, it is possible to automatically obtain inexpensive beam seeds and construction methods.

  FIG. 21 shows a case where an outer wall is placed on the beam to be examined and a beam having an inner wall is placed on the beam to be examined.

  FIG. 22A shows a case where the outer wall is placed on the beam to be examined and the beam having the outer wall is placed on the beam to be examined.

  FIG. 22B shows a case where a beam with an outer wall placed on the beam to be examined is applied from two directions, and an inner wall is placed on the beam to be examined.

DESCRIPTION OF SYMBOLS 1 Display part 2 Computer main-body part 4i Beam formation examination input screen 10 Selection sheet determination part 11 1st beam formation examination part 12 2nd beam formation examination part 13 3rd beam formation examination part 25 Beam formation reinforcement pattern table 30 Beam Growth examination condition reading unit 31 Load calculation unit 32 Standard parameter calculation unit 33 Support point reaction force / bending moment calculation unit 34 Stress degree / deflection calculation unit 35 Examination determination unit 36 Beam formation update unit 37 Beam type determination unit 38 Beam formation setting unit

Claims (6)

A beam formation examination result output system that automatically provides a screen with a reinforcing method for satisfying a predetermined condition along with the renovation of the wooden house, the beam formation of an existing beam provided in a wooden house,
First storage means for storing a design drawing in which the existing beam exists;
Second storage means for storing a beam forming reinforcement table without joint and a beam forming reinforcement table with joint, in which a reinforcing method is associated with the beam;
(A). Beam formation examination conditions including the span, beam size, tree type, building weight on the beam to be examined, gradient of the building, presence / absence of the joint of the beam to be examined are set in the design drawing displayed on the screen Means to read this every time
(B). Each time the beam formation study conditions are read, the cross-sectional area, section modulus, section secondary moment, allowable bending stress, allowable shear stress, and Young's modulus of the beam to be examined based on the beam formation evaluation conditions are fundamental. Means for obtaining parameter information;
(C). Each time the beam formation study conditions are read, based on the beam formation study conditions, a means for calculating a bending stress level, a shear stress level, and a deflection rate;
(D). Means for determining whether each of the bending stress level, the shear stress level, and the deflection rate satisfy all the predetermined conditions;
(E). When it is determined that all of the above are not satisfied, the beam is changed to a new beam having a longer dimension than the beam formation of the read beam formation examination condition, and a new beam formation examination condition including this is changed. Means to consider,
(F). When determining that all of the above are satisfied, reading the beam formation of the new beam formation examination condition that has been satisfied, and determining whether or not there is a joint of the beam formation examination condition;
(G). If there is a joint, means for extracting information on the reinforcement method corresponding to the new beam formation from the beam formation reinforcement table with the joint and displaying it on the screen;
(H). In the case of no joint, a beam formation examination result output system comprising means for extracting information about a reinforcement method corresponding to the new beam formation from the beam formation reinforcement table without a joint and displaying the information on a screen. The beam forming reinforcing table without joint and the beam forming reinforcing table with joint are:
2. The beam formation examination result output system according to claim 1, wherein the beam formation examination result output system is a matrix table in which the reinforcing method is written in a lattice of the existing beam formation and the new beam formation.   3. The beam formation examination result output system according to claim 1 or 2, wherein the new beam formation is read in order from a beam having a smaller dimension. The bending stress, shear stress, and deflection rate are calculated as follows:
Each time the beam formation examination condition is read, various load information for the beam to be examined based on the beam formation examination condition is obtained, and a fulcrum is determined from the load information, the basic parameter information, and the beam formation examination condition. Means for calculating reaction force and maximum bending moment;
Means for calculating a bending stress degree from the maximum bending moment and a section coefficient of the basic parameter information;
Means for calculating a shear stress degree from the fulcrum reaction force and the cross-sectional area of the basic parameter information, and calculating a deflection rate from the load information, the Young's modulus of the basic parameter information, and the span of the beam in the beam forming examination condition The beam formation examination result output system according to claim 1, wherein the beam formation examination result output system according to claim 1 is calculated. For each installation method of the wall placed on the existing beam, the method includes a design drawing display means for selectively displaying the installation method of the wall and the design drawing including the existing beam,
5. The beam formation examination result output system according to claim 1, wherein the display means includes the means (a) to (h) in association with each other. The design drawing display means includes:
Along with the selection of the wall installation method, a design drawing corresponding to the installation method and a three-dimensional view including the existing beam are displayed on the screen from the first storage means, and the beam formation examination conditions are input. 6. The beam formation examination result output system according to claim 5, wherein an input screen for displaying is displayed.

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