JP6928210B2 - T-shaped rigid frame frame of columns and beams with a tension member compounded in the grooves of the full length on both sides of the short side of a flat wooden column - Google Patents

Description

It is a wooden rigid frame structure that restores the deformation of the frame that was deformed by the external force acting on the building structure. Prestressed reinforced concrete technology is a technology that takes advantage of wood by replacing concrete with wood in order to ensure long-term durability and sustainability of integrated spatial environment and structural functions.

The size and size of columns and beam members of pure ramen structure that utilize the mechanical properties of the beam-winning T-type frame in order to utilize the compression force in the fiber axial direction of the wood column and to compensate for the difficulty of the beam fiber orthogonal direction force and the column tensile joint. Technology that creates an effective composition that brings out the mechanical properties of the arrangement and the metal joints.

Buildings are required to have a structural form that is suitable for various building uses and space scales, such as steel-framed structures and RC structures, with various continuities of adjacent spaces while ensuring a certain size of wooden structures.

The member size that makes the best use of the characteristics of wood, the structural structure that allows common members, and the structure of wood and wood, and the structure of direct joining of hardware and hardware make the best use of the characteristics of both materials. There is no such joining technology, and it is necessary to develop a pure wooden rigid frame structure technology.

Based on the research that the member composition of the T-shaped frame of Ryokatsu, which adopts flat wooden members for columns and beams, will be an effective use of wood, the tensile force and joining force at both ends of the column will be utilized in an integrated manner. Beam materials require technology that strengthens compression and tensile force in the direction perpendicular to the fibers and effectively rigidly joins columns and beams.

Joining of wooden beams is an important point from the structural mechanics of joining beam ends or via columns as well as rigid joining, and there is also the problem that it is difficult to partially cut out maintenance piping and ventilation space.

It is a technology that anyone can easily make hardware with little wood processing, a small amount of tensile force, and the ability to process and attach simple joint parts at low cost.

Both ends of a commercially available PC steel bar are screwed and mounted on the outer surface or groove on the outer surface of a wooden flat column to suppress wood processing, simplify hardware, reduce mounting costs, and effectively draw out allowable capacity.

At the joint position where the column members and beam members of the T-shaped frame form the T-shaped frame, thick deformed steel bars that combine compression and tensile force are used at the joints between the upper and lower surfaces of the beam members and the column heads and columns of the flat columns. The upper and lower parts are composited through the center of the beam width, and concave screws are processed at both ends of the steel bar to easily connect the column and the beam.

A structure that can disassemble columns and beams or beams and beams in an unforeseen situation. The structure of the joint that can be separated from the joint by simplifying the processing of the joint and the processing of hardware.

It is also easy to cut off the tip of the beam member that secures the piping and ventilation space at the place where the structural burden is small at the pin joint part of the beam tip of the T-shaped frame.

The wooden flat pillars can be carried out from the timber production area, sawn, distributed, and versatile.

The flat type is effective in terms of structural mechanics that effectively draws out rigid joints between wooden columns and beams.

By using PC steel bars as the hardware that enhances the tensile force of the column members and directly connecting them to the deformed steel bars that penetrate the beam members, the tensile force of the joints can be effectively increased.

By making the deformed steel bar that penetrates the weakness of the force in the direction perpendicular to the fiber of the beam member thicker, the compressive force and the tensile force are integrated with the wood, and the effect of increasing the rigidity of the beam member can be obtained.

It is also possible to simplify the process of mounting the PC steel bar on the surface of the beam or the groove on the surface over the entire length of the column material.

Processing through beam members, concave screw processing on thick deformed steel bars, and mounting of deformed steel bars on wood can be done with simple conventional technology and equipment, and can be done with capital saving.

The flat column is about three times the size of the conventional conformal size, and the T-shaped frame that supports the center of the beam with the stigma at the stigma has a simple structure, and a structure that makes full use of the advantages and disadvantages of the material characteristics can be created.

The position of the part where the structural pillar is hidden in the wall is clear, the number is small, and maintenance is easy.

Since a conventional type pillar that supports a space of 8 m square usually requires about 12 pillars, a flat type with a size that combines three pillars does not increase in material, and a rigid frame structure is effectively created at the intersection with a beam equivalent to the pillar. It has the effect of ensuring a large degree of rigidity by joining at the end of a flat member by a joining means that produces rigidity.

Utilizing the box-shaped joint surface of the stigma and pedestal, the pillar material is simply composed of three elements: a tension material and a box-shaped joint part, in which the crimping force and binding force of PC steel bars work from above and below and both sides to suppress the splitting of wood.

The box-shaped joint parts restrain the stigma column base of the column member to suppress splitting, and the PC steel bars on both sides of the middle part also have one or two PC bars so that the PC steel bars do not separate from the column members so that the PC steel bars on both sides generate binding force. It does not separate and suppresses the splitting of the sawn timber, increasing the possibility of advanced utilization according to the sawn timber strength assurance standard.

Structural members of buildings are safety and long-term durability functions, while the functions of using buildings include continuity of window rooms, securing of people's passage and visibility, and securing of space for EV, stairs, atrium, ventilation, piping, etc. In order to solve the problem of the good and bad of the rigid frame structure and the wall structure, the penetration of the beam member is solved by using the joint between the beam tips.

(B) Square isometric view consisting of eight T-shaped frames (8m square rigid frame structure consists of eight columns and beams) (b) T-shaped frame double side view (c) Joining columns and beams Part isometric drawing (2) -1,: Hardware isometric drawing, ((2) -2 ,: Hardware cross section, (2) -3 ,: Deformed steel bar drawing, (B) Detailed view of the joint between columns and beams (b) Floor plan with PC steel bars attached to both ends of the cross section of the flat column (c) (2) Grooves with the full length of the short side of the flat columns and detailed views of the mounting of PC steel bars (e) Beam ends Pin joint between hardware drawing Square unit connection isometric diagram (a)-(f)

The principle of the PC structure is effectively utilized in a wooden structure that has elasticity and rigidity and is prepared for repeated stresses such as seismic force at the central column support point of the beam at the joint of the T-shaped rigid frame frame with flat columns and flat beams.

The axial force of the fiber axis of the wood makes up for the load of the upper floor, and the material characteristic that the allowable force in the direction perpendicular to the fiber of the beam is weak. The bonding force is effectively transmitted above and below the beam where the PC steel bars are aligned, with a small edge that penetrates the thick deformed steel bars. In addition, the columns are horizontally connected by steel bars at the intermediate positions of the PC steel bars on both sides to prevent wood splitting.

In addition, an adhesive is inserted into the gap between the through hole of the beam and the deformed steel bar, and the wooden beam material is composited to utilize it for the allowable capacity of the joint structure of the column and the beam and the structure that draws out the elasticity of the PC steel bar composited with the column. ..

In addition to the allowable force, the rigidity with the elasticity of the joint necessary to maintain the strength performance against repeated seismic forces produces effective and sustainable performance, and realizes an innovative wooden rigid frame structure.

By changing the frame structure in which the beams are supported on the sides of the columns and making the structure in which the columns support the center of the beams for each floor, even if the structural members are partially damaged by water, fire, or ants, they can be joined while using the building. In order to disassemble and replace the part, the upper and lower ends of the column-mounted PC steel bars protrude from the stigma column base ends, and the torque is controlled by tightening the nuts. Attach and detach the part.

In addition, a pin joint is used, which has no columns at the joint between the beam tips, and even if the beam cross section lacks a part to secure piping and ventilation space, the decrease in structural strength is suppressed.

By simplifying the structural plan and standardizing the members and joints, the effect of simplifying the structure and processing of the metal joints at the same time can be obtained, which is useful for the entry opportunity of small and medium-sized enterprises by downsizing the processing equipment.

Economically realize the effect of increasing productivity by linking the afforestation and export of the mountain, which is the production area of timber used for structural members, and the integrated productivity of economic efficiency, design, processing, and on-site work.

Forming an 8m square space with a structure Two T-shaped frames are connected in a straight line on one side, and a frame with the same structure is assembled on four sides. The structure with no pillars at the corners of the square is the basic unit structure. , The beam ends are connected to each other at the pin joint of the same joint type as the square frame, and the spatial structure is connected to the scale shape of the building.

As for the floor structure, the positions of the two pillars on each side of the square are assembled in a well-shaped floor beam, and one type of square floor panel is incorporated into one, two, or four, and EV, stairs, and atrium are planned at any time. , Also change the position.

The space where the units of the structure are adjacent is connected vertically, horizontally and diagonally to the continuity that is not on the wall between the pillars.

On the second floor, eight T-shaped frames are stacked via beams and tied to the deformed steel bars exposed on the upper surface of the beam, and the columns and beams on the lower floor are cross-shaped and the joints are three-dimensional. Form a structure that overlaps.

If the area is about 8m square, the wooden structure that can be shared with various residential buildings such as detached houses, apartment houses, stores, offices, school buildings, and clinics can be used for general purposes.

Even in a detached house, ^{144m 2} can be put into practical use by adding a cantilever structure of ^{64m 2 and an outer circumference of 2m.}

When two units are connected in parallel for an apartment house, it can be applied to the marketability of housing supply that freely combines single-type, medium-sized, and large-sized dwelling units.

For stores, it applies to convenience stores, housing with stores, elderly people, welfare housing facilities, etc. When 5 units are connected in a cross shape, the unit at the central intersection obtains new building value for building applications with high added value in the area of the corridor such as aisles, living rooms, and halls.

Creates utility value that realizes disaster prevention and long-term durability of buildings in preparation for natural disasters with wooden structures. The principle of the PC structure, which prepares for earthquake resistance that deteriorates due to the shaking of the earthquake, is utilized for the vibration control and resilience of wooden structures.

Claims (2)

Said flat Columns instrumentation dressed with pre threaded portion PC steel bar into the groove over the stigma pedestal entire length of the cross-section the short sides on both sides of the wooden flat pillars,
A beam having a pre-Me screws portion different Katachibo steel both ends small penetrating the cross-section above and below the beam length 3~4m center,
Align the flat column PC steel bar with the center axis of the deformed steel bar at the lower end or upper end of the beam.
Through the flat pillars short sides on both sides of the PC steel bars and beams profiled bar steel, T-type, or with binding to cross the flat pillars PC steel bar is elongated over the pedestal from stigmas of the flat column, A frame in which the flat column PC steel bars on both sides of the short side of the flat columns are horizontally connected by steel bars at an intermediate position. The deformed steel bars of the flat post short side on both sides of the PC steel bars and beams,
The frame according to claim 1, wherein two box-shaped joint parts provided symmetrically on the short side of a flat column are joined by a rectangular box-type joint part which is connected and integrated.

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