JPH086393B2 - Roof base structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a technique for transmitting a horizontal force between adjacent purlins via a ridge portion.

[Prior Art] When constructing a conventional steel-based roof substrate, the upper surface of the purlin 8 is an inclined surface as shown in FIG. 9, and the tree 1 is placed on the inclined surface and the bolt 9 is used. It was stuck. And in the ridge part, the tree 1 which is the upper surface of the ridge material 30
The upper surface of the above was placed and fixed by the bolt 9.

[Problems to be Solved by the Invention] However, the above conventional example requires the building material 30. Here, it is considered that the building material 30 is not provided, but how to transmit the horizontal force in this case becomes a new subject.

The present invention has been made in view of the above problems, and an object thereof is to provide a roof base structure capable of transmitting a horizontal force from a purlin to a purlin even when a building material is not provided. To provide.

[Means for Solving the Problems] In the roof substrate structure of the present invention, the eave side half portions of the respective upper surfaces of the purlins 8 themselves facing each other on both sides of the ridge are descended so that the eaves side faces downward. In addition to the inclined rafter mounting piece 8a, the ridge-side half of the upper surface of the purlin 8 itself is a horizontal horizontal piece 8b, and the rafter 1 is placed on the inclined rafter mounting piece 8b on the upper surface of the purlin 8 itself. A horizontal piece on the upper surface of the purlin 8 itself, which is installed and is arranged on both sides of the ridge portion to face each other.
It is characterized in that both ends of the horizontal brace A are attached to 8b respectively, and by adopting such a constitution, the problems of the conventional example described above are solved and the object of the present invention is achieved. It was done.

[Operation] Then, by dividing the upper surface of the purlin 8 itself into the slanted tree-mounting piece portion 8a and the substantially horizontal side-direction piece portion 8b, the tree 1 is placed on the slanted tree-mounting piece portion 8a. However, the end of the horizontal brace A is attached to the substantially horizontal lateral piece 8b. At the time of attaching the horizontal brace A, another horizontal brace attachment metal fitting for attaching the special horizontal brace A to the purlin 8 is used. It is no longer necessary to avoid the rafter 1 by utilizing the upper surface of the purlin 8 itself without attaching it, and the horizontal brace A allows the horizontal force to be directly transmitted from the purlin 8 itself to the purlin 8 itself. Even if it is not provided, horizontal force can be transmitted.

[Examples] The present invention will be described in detail below based on examples shown in the accompanying drawings.

As shown in FIG. 2, a bundle 4 is erected on the beam 3 on the beam street, and a reinforcing wood joining metal 5 is provided on the bundle 4, and the upper surface of the reinforcing wood joining metal 5 is inclined. On the inclined upper surface, a reinforcing rafter 2 located along the beam is placed and attached by bolts 9. As shown in FIG. 3 (a), a side piece 6 is provided on the reinforcing rafter-jointed metal piece 5 so as to project laterally, and the tip of the side piece 6 is orthogonal to the protruding direction by the thickness of the side piece 6. The purlin connecting piece 7 which is displaced in the direction of projection is projected. As shown in FIG. 3, the purlin connecting piece 7 has a purlin 8 whose upper surface is inclined.
The ends of are connected by bolts 9. The rafters 1 are placed on the purlin 8 at a predetermined pitch so as to be orthogonal to the purlin 8. Here, the reinforcing rafter 2 has a larger cross-sectional area and a higher height than the rafter 1. The reinforcing rafters 2 and the rafters 1 having different heights are constructed so that the upper surfaces thereof are at the same level. Therefore, the lower surface of the rafters 1 is located above the lower surface of the reinforcing rafters 2. There is something. In FIG. 1, reference numeral 10 is a double rafter tree, and two rafter trees 1 are arranged back to back. It is mounted on the inclined upper surface of 11 and attached by bolts 9. The double-barrel-timbered metal fitting 11 has the same structure as the reinforced timber-metal bonded metal fitting 5 except that the height is higher than that of the reinforced timber-bonded metal fitting 5. That is, as shown in FIG. 6 (a), a side piece 12 is connected to the double-barrel-joint metal fitting 11, and the tip of the side piece 12 is displaced by a thickness of the side piece 12 in a direction orthogonal to the projecting direction. A purlin connecting piece 13 is projected. Thus, when the double rafter 10 is provided, the end of the purlin 8 is connected to the purlin connecting piece 13 by the bolt 9 as shown in FIG. By the way, in the present invention, unlike the conventional case, the building material is not provided in the building portion. Then, a ridge-side connecting metal piece 26 is projected from the ridge-side end of the reinforcing rafter 2, and the contact plates 27 at the ends of the ridge-side connecting metal piece 26 are connected by bolts 9. In this case, as shown in FIG.
Since the ridge side end of the rafter tree 1 is free as a free end, the reinforcing rafter trees 2 having a large cross-sectional area are connected to each other at the ridge part, so the rafter tree 1 is connected at the ridge part. Even without it, there is no problem in strength.
In addition, the ridge side end of the double rafter 10 may be free as a free end, but if necessary, a separate ridge side connection hardware
It may be connected in the same way as the tree 2 reinforced by 26.

Of the plural purlins 8, the purlins 8 located on both sides and facing each other through the ridge portion are inclined downward so that the eaves side half of the upper face of each purlin 8 itself is downward as shown in FIG. There is this tilted part as the wooden placing piece 8a,
The main building 8 itself has a ridge-side half portion on the upper surface, which is a horizontal horizontal piece 8b.
There is. Then, both ends of the horizontal brace A are attached by bolts 9 to the laterally facing piece portions 8b of the purlin 8 which are arranged on both sides and face each other via the ridge portion. By connecting the adjacent purlins 8 with the horizontal brace A via the ridge portion in this manner, the horizontal force can be directly transmitted from the purlin 8 itself to the purlin 8 itself through the horizontal brace A.

On the girder beam 21 to which the ends of the beams 3 are connected, the eaves-end reinforcing wooden joint metal 22 and the eaves-side wooden joint metal 23 are joined by the bolts 9. Reinforcement rafter 2 and rafter 1 on the upper slope of the
A double rafter 10 is placed and joined with a bolt 9. A brace 24 is stretched between the adjacent reinforcement trees 2. In this case, the end portion of the brace 24 is shown in FIG.
As shown in Figure (a), the flange 2a under the reinforcing rafter 2
The bolts 9 are attached to the lower surface side of each of the double rafters 10 and the braces 24 are stretched between the double rafters 10 or between the double rafters 10 and the reinforcing rafters 2.
As shown in FIGS. 8 (b), 8 (c) and 8 (b), the end portion of the brace 24 is joined by the bolt 9 to the lower surface side of the flange 10a under the double rafter 10 via the spacer 25. Here, the end of the brace 24 is attached to the lower flange 10a of the double rafter 10 via the spacer 25, or the brace 24 is attached to the flange 2a below the reinforcing rafter 2 so that the rafter 1 is disturbed. The brace 24 can be stretched without any need.

[Effects of the Invention] In the present invention, as described above, the eave side half of each upper surface of the purlin itself, which is located on both sides of the ridge portion and faces each other, is inclined downward so that the eave side is downward. In addition to the wood placing piece, the half of the main building itself on the side of the ridge is a horizontal horizontal piece. Since both ends of the horizontal brace are attached to the horizontal side portions of the upper surface of the purlin itself which is arranged and opposed, it is possible to mount and attach the tree that is the upper surface of the purlin itself in an interview state and to the upper surface of the purlin itself The horizontal brace can be attached directly, and as a result, two types of members with different installation inclinations, a tree on the upper surface of the purlin itself and a horizontal brace, can be attached easily and without interfering with each other. Thus, it is possible to attach members having different slopes without attaching other special metal fittings to the purlin, which improves workability and requires a small number of members. In addition, even though the horizontal brace is attached to the upper surface of the purlin itself, it is not necessary to avoid the rafters, and the attachment position is not limited. Since both ends of the horizontal brace are attached to the substantially horizontal sideways part of the ridge side half of the upper surface of the purlin itself, horizontal forces can be directly transmitted from the purlins located on both sides via the ridge to the purlin itself, As a result, horizontal force can be transmitted even if no building material is provided.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of the present invention, FIG. 2 is a front view of a construction portion of a reinforcing barrel as above, and FIGS. 3 (a), (b) and (c) are joints of a reinforcing barrel assembling metal fitting and a purlin as above. A plan view showing
Fig. 3 (a) is a cross-sectional view taken along the line ii and cross-section taken along the line Loro, Fig. 4 is a plan view of the ridge-side connecting hardware part of the above, and Fig. 5 is a front view of the construction part of the rafter. Figure, Figure 6 (a)
(B) and (c) are front views showing the joining of the double-barrel joining hardware and the purlin of the same, the cross-sectional view of the ho-ho line of FIG. 6 (a) and the cross-sectional view of the ha-he line, and FIG. a) (b) (c) is a side view showing each example when the same brace is stretched, and FIG. 8 (a) (b) is a front view showing each example when the same brace is stretched. FIG. 9 is a sectional view of a conventional example, in which 1 is a rafter, 8 is a purlin, 8a is a piece for placing a rafter, 8b is a lateral piece, and A is a horizontal brace.

Claims (1)

[Claims] 1. The eave side half of each upper surface of the purlin itself, which is located on both sides through the ridge portion and faces each other, is used as a wooden placing piece part that is inclined downward so that the eave side is facing downward, and The ridge side half of the upper surface is a horizontal horizontal piece, and the top of the purlin itself, which is placed on both sides of the ridge, is placed on both sides of the turf by placing the sloping tree on the upper part of the purlin itself. A roof base structure, which is configured by attaching both ends of horizontal braces to the laterally facing one part of each.