JPH0625484B2 - RC or SRC structure capable of following interlayer displacement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an RC or SRC structure associated with interlayer displacement during an earthquake.

(Prior Art) In the conventional in-situ RC structure or SRC structure,
The upper-floor vehicle was placed in the lower-floor vehicle through the reinforcing bars.

In the conventional RC or SRC structure, when the seismic force is applied, the entire frame is opposed to each other, and the outer wall only has one joint at a span to induce a crack.

(Problems to be solved by the invention) As described above, in the conventional RC or SRC structure, sufficient consideration is not given to the performance retention of the outer wall, the mechanism at the time of earthquake is unclear, and the mechanism of the outer wall at the time of earthquake is unclear. There was a problem in terms of performance retention.

(Means for Solving Problems) The present invention has been proposed in order to solve such problems, in which a slab and an outer wall concrete are integrally cast, and the outer wall is a pillar and a floor of a lower floor. In an RC or SRC structure structurally insulated by an insulating material, a dowel protruding from a lower floor beam is protruded from the insulating material, and a structural insulating cap is loosely fitted to the protruding portion. It relates to an RC or SRC structure that can follow interlayer displacement.

(Operation) As described above, in the RC or SRC structure according to the present invention, the concrete of the slab and the outer wall is integrally cast, and the outer wall is structurally insulated from the pillar and the lower floor through an insulating material. Since it is a non-bearing wall, the outer wall does not bear the seismic force.

Further, according to the present invention, each floor is made to project from the lower floor beam, and the burrs are made to project from the insulating material, and an insulating cap is loosely fitted to the projecting portion to structurally insulate the dowels from the concrete on the outer wall. This allows the RC or SRC structure to follow the interlayer displacement.

(Examples) The present invention will be described below with reference to illustrated examples.

Placing the concrete of the outer wall (1) and slab (2) together,
Channel-shaped dowels (3) are planted on the upper end surface of the outer wall (1).
(4) in the figure is the anchor muscle of the dowel.

Next, a large number of recesses are provided on the inner side of the outer wall (1), and a structural edging material (5) made of a synthetic resin sheet or the like is adhered to the pillar (6) for placing concrete.

Next, a bolt for fixing the dowel (3) to the outer wall (1 ') of the upper floor is inserted into the bolt hole (7) provided in the protruding portion of the dowel (3) and tightened with the nut. deep.

Furthermore, the cap (8) is loosely fitted to the dowel (3) to prevent concrete from wrapping around, and it is almost (3) in the in-plane direction.
Leave free.

Next, on the upper end joining surface (1a) of the outer wall (1), hard paper coated with paint, Teflon sheet, gypsum board, asbestos board, slate, iron plate, etc. After that, an inner formwork (not shown) of the upper floor portion is attached to the dowel (3) by using a bolt, and the outer wall of the upper floor is provided between the formwork and the omnier wall plate arranged outside thereof. (1 ') Placing concrete.

At this time, the outer wall (1 ') concrete and the slab concrete on the upper floor are cast integrally.

In the illustrated embodiment, as described above, the outer wall (1) and the concrete of the slab (2) are integrally cast, and the concrete of the outer wall (1) and the pillar (6) inside thereof is cut off. Since it is structurally insulated via the material (5), the outer wall (1) becomes a non-bearing wall and does not bear the seismic force.

In addition, a dowel (3) is embedded at the top of the outer wall (1), and the upper floor concrete is spliced and connected to the upper floor concrete to resist the seismic force in the out-of-plane direction and to the dowel (3). By loosely fitting the cap (8) so that concrete does not wrap around, it is possible to reliably deform in the in-plane direction by the clearance between the cap (8) and the dowel (3). It is a thing. Further, the clearance between the fastening nut of the bolt fastened through the dowel (3) and the cap (8) can restrict the deformation in the out-of-plane direction.

In this case, the cross-section of the outer wall (1) is provided with the cut-off material (9) so that the deformation between layers can be smoothly performed.

Figures 3 and 4 show the deformed state of the structure when an in-plane seismic force acts, and Figures 5 and 6 show the deformed state of the structure when an out-of-plane seismic force acts. Is shown.

Thus, the outer wall is the same as the conventional RC or SRC structure.
It does not have rigidity in (1), but is adapted to deformation during an earthquake.

As described above, according to the above-described embodiment, since the seismic force is not applied to the outer wall (1), the mechanism during the earthquake becomes easy to understand, and it is sufficient to consider only the joints that induce contraction of the concrete itself. There is no need to worry about damage or even water leakage.

In addition, by providing a step at the joint of the outer wall (1),
Ingress of rainwater does not require complicated settlement.

(Effect of the invention) According to the present invention, as described above, in the RC or SRC structure in which the slab and the outer wall are integrally cast, and the outer wall is structurally insulated by the pillar and the lower floor beam and the insulating material, The dowel protruding from the lower floor beam is projected to the upper floor above the insulating material, and the structural insulating cap is loosely fitted to the protruding portion of the dowel so that the outer wall is structured by the pillar and the lower floor beam and the insulating material. Insulation is performed so that the outer wall is surely deformed inward by the clearance of the cap and the dowel so that it can follow the interlayer displacement of the structure.

In addition, since seismic force is not input to the outer wall, it is only necessary to consider the joints that induce contraction of the concrete itself, and the damage to the outer wall due to the earthquake and the risk of water leakage are eliminated.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a condition of an RC or SRC structure capable of following interlayer displacement according to the present invention during construction, and FIG. 2 is a front view showing a condition of an outer wall connecting surface thereof. Three
Figures and 4 are side views and plan views showing the deformed state of the structure when in-plane seismic force is applied, respectively, and Figs. 5 and 6 are cases when out-of-plane seismic force is applied. It is a side view and a plane view showing a deformed state of the structure. (1) …… Outer wall, (2) …… Slab, (3) …… Dowel, (5) …… Edge cutting material, (6) …… Column, (8) …… Cap, (9) …… Edging material,

Claims (1)

[Claims] 1. An RC or SRC structure in which a slab and an outer wall concrete are cast in one piece, and the outer wall is structurally insulated from a pillar and a floor of a lower floor by an insulating material. An RC or SRC structure capable of following an interlayer displacement, characterized in that a boss is projected from the insulating material, and a structural insulating cap is loosely fitted to the protruding portion.