JPS58164844A - Building method by angle steel pipe and alc panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for constructing earthquake-resistant buildings using square steel pipes and ALC plates.

In general, ALC plates are lightweight and have good sound insulation and heat insulation performance, so they have recently been adopted in many buildings.

By the way, in the conventional construction method using ALC plates, the wall surface is constructed by welding anchor bolts embedded in the ALC plates or fittings welded to them to columns and beams made of H-beam steel, etc. The ALC plates are installed continuously on the outside of the wall frame, and the joints are filled with mortar, and the floor and roof surfaces are horizontally placed to maintain the rigidity of the floor frame. ALC plates are laid out continuously from front to back, left to right, and on the floor frame. ,
Commonly, construction is carried out by arranging reinforcing bars within the joints and filling them with mortar.

Therefore, according to such conventional construction methods, when a strong horizontal force is applied during a strong earthquake or typhoon, the wall plate cannot follow the displacement between the floors of the frame structure, and the anchor bolts of the ALC plate or their welds may be locally damaged. There was a risk of accidents such as stress concentration occurring in this area, which could cause the part to break and fall off, or the H-shaped steel beam flange to cause local deformation, causing the floor slab to break.

On the other hand, recently, as a solution to this problem, a construction method in which the upper and lower ALC plates are used as expansion joints by using lightning hardware or back-up material for side joints has been proposed as a ``construction method when consideration is required for displacement between steel structure layers.'' etc. have been adopted, but there were drawbacks such as the need for complex work such as lightning hardware and expansion/staining.

In order to solve the above-mentioned problems of the conventional construction method, this invention can be easily constructed without requiring any complicated parts or work such as various joint hardware, expansion joints, etc., and the rigid frame structure is sufficient even during strong earthquakes. maintains strength,
The wall ALC plate sufficiently follows the interlayer displacement to prevent it from breaking or falling off, and 1. Even on the main surface, sufficient rigidity is ensured without requiring a horizontal place, etc., and the AL for the floor is installed.
We propose an easy and economical construction method that can prevent the destruction of the C plate.

The present invention will be described below with reference to the drawings. Pillars 1 and beams 2 made of square steel are rigidly connected at joints, respectively, to construct a rigid frame frame of a required level.

Fix this on the foundation 3.

As a rigid connection means for the joint portion of the column 1 and the beam 2, for example, a third
~As shown in Figure 5, a receiving plate 4 tapered upward and chamfered inward on both left and right sides is welded to the joint part of the pillar 1, and a reinforcing plate is attached at right angles to the lower end of the receiving plate 4. 5 is welded, and a receiving plate 4 is attached in advance to the joint end of the beam 2.
A connecting plate 7 having a notch 6 that can be tightly fitted is welded, and a reinforcing plate 8 is welded to the upper surface of the end. In this state, the connecting plate of the beam 2 is attached to the receiving plate 4 of the established column 1. Fit 7 into the notch 6 and temporarily fix it, and weld the joint between 8 and column l on the binding plate 7111'll and 9 reinforcing plate 6. □ F 5 yo I 2 yo.

or. Back weld. In this case, when the beam 2 is installed opposite to the column 1, the reinforcing plate 5 is continuously integrated into the column 1. Furthermore, a reinforcing plate 9 is welded inside the column 1 to which the reinforcing plate 8 of the beam 2 is butt-welded. Further, a column supplementary material 10 made of a square steel pipe is welded to the column 1 as necessary to reinforce the column 1.

After constructing the rigid frame structure in this way, the adjacent columns 1.
1 and the upper and lower beams 2.2 passed between them, a plurality of wall ALC plates 11 are successively built into the wall frame, and each ALC plate 11 is connected to each other and to the inner surface of the wall frame. is crimped and fixed with a permanent adhesive 12 (for example, a butyl rubber adhesive such as Top Sealer (trade name), which permanently maintains a soft rubber-like state after curing and has excellent elasticity and plastic deformability).

In addition, a supporting member 13 made of angle steel or the like is fixed in advance by welding or riveting to the side surface corresponding to the inner circumferential surface of the floor frame on the four circumferential beams 2 constituting the floor frame. A plurality of floor ALC plates 14 are successively dropped in one after another, and the ends of each ALC plate 14 are supported by supporting materials 13 and laid out. And each ALC version 14
The joints between each other and the gaps between these and the inner surface of the floor frame are filled with mortar 15, and the floor frame l! rALC version 14.

As described above, according to the present invention, an AL
Since this is a construction method in which the C-plates are built in one piece, the amount of interstory displacement caused by the horizontal force applied to the building during earthquakes and typhoons is divided for each floor, and unlike conventional construction methods, the ALC plates on each floor are continuous to the upper and lower floors. However, the amount of interstory displacement does not increase in proportion to the height of the building.

Since the ALC plate is fixed with a permanent adhesive at the mutual joints and the joints with the wall frame, even if the wall frame undergoes significant interlayer displacement due to strong earthquakes, typhoons, etc. It is possible to easily follow the interlayer displacement by creating a bend at the joint between each ALC plate and the wall frame, and since the shear force acts on the entire joint surface of the ALC plate, no local stress is generated. In addition, the rigidity of the ALC plate combined with the rigidity of the wall frame allows it to resist horizontal forces.

In addition, for the floor and roof, the ALC plates are placed into a floor frame made up of square steel pipe beams around the four sides, and the ends are supported on the inner support material and laid out continuously, and the joints between the ALC plates are Since the gaps between these and the floor frame are filled with mortar to integrate them within the same plane, necessary and sufficient floor tonality can be ensured without requiring horizontal placement.

Furthermore, the pillars and beams are made of square steel pipes, so they are highly rigid and have a good finished appearance. In addition, since there is no need to cut joint hardware, welding, etc. when installing the ALC plate, there is no special pre-processing or work that requires skill, making it extremely workable and economical.

□ Therefore, with this invention, it is possible to reliably prevent the ALC plate from being damaged or falling off in the event of a strong earthquake with simple construction, and it is possible to construct a building with excellent earthquake resistance.

Experimental example 1 Column length 23 using square steel pipes of 150X100X4.5wn
A wall frame with a beam length of 0 crn and 360 ctn was constructed, and an ALC plate with a thickness of 100 pus was continuously built inside the frame and fixed with a permanent adhesive (Top Sealer 5000 #) to form an integrated experimental panel. Then, this was installed on rollers laid out on the floor, one end of the column base was fixed, and a load P was applied to the column head, 230/100 = 2.3 saws and 23
When an experiment was conducted with an interlayer displacement of 0/30 = 7.7 cm, a hair crack of approximately 6 = occurred near the fixed hardware of the sash installed in the wall at a displacement of 230/100, and then as the amount of displacement increased. As a result, cracks occurred in various places on the ALC plate surface, but although an external force was applied to the wall surface at the time of 230/30 displacement and an attempt was made to remove it, the plate did not fall off.

In addition, 230. The load '1 for an interlayer displacement of /100 is 3', 24t in the design value, but in the experiment it is 4°4.
This difference is thought to be due to the influence of the ALC plate.Experimental example 2 180X3 using a square steel pipe of 150X100X4.5 tone
A 60z floor frame was constructed, an ALC plate with a thickness of 100cm was dropped into it as in the above example, and joint mortar was filled to form an integrated experimental panel, which was laid out on the floor with rollers. An experiment was carried out by fixing one end in the longitudinal direction and applying a load P to the other end.・Load 6,
When the temperature reached Ot, a deformation of 5.71 cIn occurred, and although no damage to the frame was visible, considerable damage occurred to the ALC plate surface.

In addition, in order to cause a displacement of 5°7m with only the floor frame, a calculated load of 1.06t will be applied, and the difference between this and the experimental value of 4.94t is due to the effect of integrating the ALC plate. Conceivable. By the way, if we assume that this difference of force of 4.94t is supported by a horizontal place, then the calculated force is 5.94t.
This is equivalent to adding a horizontal place of approximately φ(4,91(7)2).

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view showing an example of a building constructed using this invention construction method, Figure 2 is a cross-sectional view of the same, Figure 3 is a perspective view of the column and beam joints, and Figure 4 is a cross-sectional view of the pillar and beam joints. A vertical cross-sectional view showing the bonded state,
FIG. 5 is a cross-sectional view of the same. 1...Column, 2...Beam, 11...ALC version for wall, 12...
Permanent adhesive, 13. Supporting material, 14. ALC for floors
Edition, 15...mortar. Patent applicant Masashi Hase Attorney Minoru Fujii

Claims (1)

[Claims] 1) Columns and beams made of square steel pipes are rigidly connected together at their joints to form a rigid-frame frame, and a plurality of square steel pipes are installed in a wall frame composed of adjacent columns and upper and lower beams in this rigid-frame frame. Continuously build the ALC version of this A
The joint surfaces of the LC plates and the inner surface of the wall frame are joined together with a wood-resistant adhesive, and supporting materials are fixed to the inner surface of the floor frame made up of beams around the four circumferences, and within this floor frame, multiple The feature is that a number of ALC plates are successively dropped, their ends are supported on the supporting material, and the joints between the ALC plates and the gap between them and the floor frame are filled with mortar to integrate them. A construction method using square steel pipes and ALC plates.