CN203613676U

CN203613676U - Built-in concealed brace self-insulation laminated plate type shear wall

Info

Publication number: CN203613676U
Application number: CN201320791840.5U
Authority: CN
Inventors: 胡夏闽; 吉晨彬; 尹红宇
Original assignee: Nanjing Tech University
Current assignee: Nanjing Tech University
Priority date: 2013-12-03
Filing date: 2013-12-03
Publication date: 2014-05-28
Anticipated expiration: 2023-12-03

Abstract

The utility model discloses a self-insulation laminated slab shear wall with built-in concealed support, which comprises a prefabricated concrete layer, an insulation board, a cast-in-place concrete layer, transverse steel bars, vertical steel bars, lattice steel bars, stirrups, and U-shaped inserts. It is composed of ten parts including reinforcement, foundation beam and diagonal reinforcement (hidden support). Among them, the lattice reinforcement is welded on one side of the vertical reinforcement, and then pressed into another layer of prefabricated concrete, which mainly connects the prefabricated layer, so that the laminated layer and the cast-in-place layer can work together; The beam and the wall are jointly stressed; the insulation board is placed between the laminated layer and the cast-in-place layer to improve the insulation performance of the wall. Diagonal bars (concealed braces) are welded to the steel skeleton composed of horizontal steel bars and vertical steel bars, which can not only enhance the shear performance of the wall under earthquake action, but also make the foundation beam and the wall bear the force synergistically.

Description

The superimposed board-like shear wall of built-in dark support self-heat conserving

Technical field

The utility model relates to a kind of building structural element, and particularly the shear wall in superimposed board-like structural building, belongs to building structure technology field.

Background technology

At present, what most reinforced concrete structure adopted is cast-in-place structural, and it has advantages of, and anti-seismic performance is good, plasticity is good, good integrity etc.Also have some shortcomings, such as site operation intensity is large, construction period is longer, the degree of suitability for industrialized production is low simultaneously, and template consumption is large, and seasonal effect is comparatively obvious etc.Another kind of correspondingly be exactly prefabricated reinforced concrete structure, part building unit can suitability for industrialized production, manufacture be subject to seasonal affect little, short construction period, the use of template is few, but maximum shortcoming is that overall performance is poor, is unfavorable for antidetonation, in all previous earthquake, find that the destruction of prefabricated units is comparatively serious.So, in antidetonation area, be that restriction is used prefabricated assembled member.In addition, precast reinforced concrete construction is not impervious, so can not be used for special construction.

In addition, Chinese patent discloses the superimposed board-like shear wall of a kind of " one " font for " 200920299378.0 " number, and its design feature is: be between two facing-wall boards of contiguous prefabricated superimposed board-like shear wall perps junction, to be provided with antidetonation post: form imperforation wallboard splicing shear wall.This kind of seismic structural wall, earthquake resistant wall is to improve traditional shear wall is a kind of, but this patent can not solve common three kinds of earthquakes of reinforced concrete shear wall: 1. on metope, occur oblique crack; 2. the horizontal construction joint occurred level changing of the relative positions of bottom floor; There is too early shear failure in the coupling beam 3. joining in limb shear wall.

Utility model content

The utility model proposes the superimposed board-like shear wall of a kind of built-in dark support self-heat conserving, make full use of the advantage of monolithic reinforced concrete structure and prefabricated reinforced concrete structure, overcome the shortcomings such as cast-in-place concrete structure long construction period, template consumption is large, labour intensity is large, can solve again the problem of fabricated construction poor seismic behavior simultaneously.

The technical solution adopted in the utility model is: the superimposed board-like shear wall of a kind of built-in dark support self-heat conserving, comprises precast concrete layer, warming plate, cast-in-situ concrete layer, transverse reinforcement, vertical reinforcement, lattice reinforcing bar, stirrup, U-shaped joint bar, grade beam and diagonal bar (secretly support);

Described precast concrete layer, warming plate, cast-in-situ concrete layer are joined together to form body of wall, cast-in-situ concrete layer is arranged between two precast concrete layers, described warming plate is placed between precast concrete layer and cast-in-situ concrete layer, improve the heat-insulating property of body of wall, described transverse reinforcement, vertical reinforcement and lattice reinforcing bar are arranged in body of wall, lattice reinforcing bar and vertical reinforced-bar-welding, lattice reinforcing bar mainly plays connection preformed layer, makes overlapping layers and in-situ layer collaborative work;

In described grade beam, be provided with transverse reinforcement and stirrup;

Described body of wall is arranged on grade beam, and described U-shaped joint bar is positioned at grade beam bottom, and stretches in body of wall, makes grade beam and body of wall cooperative bearing; Described diagonal bar is welded on the cage of reinforcement of transverse reinforcement and vertical reinforcement composition, not only can strengthen wall shear resistant under geological process, makes grade beam and body of wall cooperative bearing simultaneously.

As preferably, described transverse reinforcement, vertical reinforcement, lattice reinforcing bar, stirrup, U-shaped joint bar, diagonal bar are that common hot-rolled reinforced bar processes.

As preferably, described warming plate 2 is the concrete insulation board of regenerated polystyrene foam (REPS), can be also the conventional warming plate of engineering, as EPS warming plate etc.

As preferably, described precast concrete layer 1 can be the fine concrete that 40-60mm is thick.

Described cast-in-situ concrete layer 3, grade beam 9 can be common commercial concrete.

Beneficial effect: 1. the utility model is innovated in structural system, belong to wall self-insulation, be beneficial to and improve the heat-insulating property of body of wall, and heat insulating material regenerated polystyrene foam (REPS) concrete insulation board turns waste into wealth, meet the requirement of green building and environmental protection.Foam concrete heat-preserving plate realize building energy conservation more than 65% in, guarantee building fire safety and application life.It has been trend of the times that foam concrete heat-preserving plate replaces organic insulation material (as EPS plate) in building energy conservation, and market progressively expands.Foam concrete, take cement as major ingredient, is secure and non-combustible material, and fire-resistant level is greater than 2h, can reach A level fire-protection standard, can meet the fire protection requirement of any building completely.Be generally 50-100 the projected life of building.Foam concrete durability is greater than 50 years, can with building the same life-span.

2. the utility model proposes the superimposed board-like shear wall of built-in dark support self-heat conserving, make full use of the advantage of monolithic reinforced concrete structure and prefabricated reinforced concrete structure, overcome the shortcomings such as cast-in-place concrete structure long construction period, template consumption is large, labour intensity is large, can solve again the problem of fabricated construction poor seismic behavior simultaneously.And compared to No. " 200920299378.0 ", Chinese patent, this adds the superimposed board-like shear wall of dark support and can effectively improve bearing capacity and the ductility of shear wall, carrying out of restriction shear wall diagonal crack, postpone the appearance of shear wall bottom plastic hinge, structural entity resistant function is lasting, rigidity and bearing capacity decay are slow, the stable performance of structure later stage, and overall anti-exhibition ability strengthens.

Accompanying drawing explanation

Fig. 1 is the superimposed board-like shear wall structure schematic diagram of the built-in dark support self-heat conserving of the utility model;

Fig. 2 is a-a sectional drawing in Fig. 1;

Fig. 3 is b-b sectional drawing in Fig. 1;

Fig. 4 is the utility model lattice reinforcing bar schematic diagram.

The specific embodiment

Below in conjunction with the specific embodiment and accompanying drawing, the utility model is described further:

As Figure 1-4, the superimposed board-like shear wall of a kind of built-in dark support self-heat conserving, comprises precast concrete layer 1, warming plate 2, cast-in-situ concrete layer 3, transverse reinforcement 4, vertical reinforcement 5, lattice reinforcing bar 6, stirrup 7, U-shaped joint bar 8, grade beam 9 and diagonal bar (secretly support) 10;

Described precast concrete layer 1, warming plate 2, cast-in-situ concrete layer 3 are joined together to form body of wall, cast-in-situ concrete layer 3 is arranged between two precast concrete layers 1, described warming plate 2 is placed between precast concrete layer 1 and cast-in-situ concrete layer 3, improve the heat-insulating property of body of wall, described transverse reinforcement 4, vertical reinforcement 5 and lattice reinforcing bar 6 are arranged in body of wall, lattice reinforcing bar 6 welds with vertical reinforcement 5, and main the rising of lattice reinforcing bar 6 connects preformed layer, makes overlapping layers and in-situ layer collaborative work;

In described grade beam 9, be provided with transverse reinforcement 4 and stirrup 7;

Described body of wall is arranged on grade beam 9, and described U-shaped joint bar 8 is positioned at grade beam 9 bottoms, and stretches in body of wall, makes grade beam 9 and body of wall cooperative bearing; Described diagonal bar 10 is welded on the cage of reinforcement that transverse reinforcement 4 and vertical reinforcement 5 form, and not only can strengthen wall shear resistant under geological process, makes grade beam 9 and body of wall cooperative bearing simultaneously.

Described transverse reinforcement 4, vertical reinforcement 5, lattice reinforcing bar 6, stirrup 7, U-shaped joint bar 8, diagonal bar 10 are that common hot-rolled reinforced bar processes.Described warming plate 2 is the concrete insulation board of regenerated polystyrene foam (REPS), can be also the conventional warming plate of engineering, as EPS warming plate etc.Described precast concrete layer 1 can be the fine concrete that 40-60mm is thick.

The utility model shear wall concrete construction method is as follows:

(1) welding is good by transverse reinforcement 4, vertical reinforcement 5, lattice reinforcing bar 6, diagonal bar (secretly support) the 10 three-dimensional cage of reinforcement that form;

(2) precast concrete layer 1, treats to be pressed into cage of reinforcement before hardening of concrete, maintenance 7 days, and with machine upset, prefabricated opposite side layer of concrete, treats to be pressed into before hardening of concrete equally; Form cavity wall

(3) reinforcing cage of colligation grade beam 9, the template of vertical good grade beam 9, puts the cavity wall that (2) step forms thereon, and both sides are with supporting supporting;

(4) put into the concrete insulation board of regenerated polystyrene foam (REPS) as the position of Fig. 3, concreting;

(5) carry out concrete curing, stripping again in the time that concrete strength reaches requirement.

The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. A built-in concealed support self-insulation laminated slab shear wall is characterized in that: it includes a prefabricated concrete layer, insulation board, cast-in-place concrete layer, transverse reinforcement, vertical reinforcement, lattice reinforcement, stirrups, U-shaped Inserted bars, foundation beams and inclined bars;

The prefabricated concrete layer, insulation board, and cast-in-place concrete layer are connected together to form a wall, the cast-in-place concrete layer is arranged between two precast concrete layers, and the insulation board is placed between the precast concrete layer and the cast-in-place concrete layer , the horizontal reinforcement, the vertical reinforcement and the lattice reinforcement are arranged in the wall, and the lattice reinforcement is welded to the vertical reinforcement;

Transverse steel bars and stirrups are arranged in the foundation beam;

The wall is arranged on the foundation beam, the U-shaped inserting bar is located at the bottom of the foundation beam and extends into the wall, and the oblique bar is welded on the reinforcement skeleton composed of the transverse reinforcement and the vertical reinforcement. the

2. The built-in concealed support self-insulation laminated slab shear wall according to claim 1, characterized in that: said transverse reinforcement, vertical reinforcement, lattice reinforcement, stirrup, U-shaped inserting reinforcement, and oblique reinforcement are Processed from hot-rolled steel bars. the

3. The built-in concealed support self-insulation laminated slab shear wall according to claim 1, characterized in that: said insulation board is concrete insulation board or EPS insulation board made of recycled polystyrene foam. the

4. The built-in concealed support self-insulation laminated slab shear wall according to claim 1, characterized in that: the precast concrete layer (1) is 40-60mm thick fine concrete. the