CN210369424U - Adopt precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires - Google Patents

Abstract

The utility model relates to a precast concrete shear wallboard adopting vertical connection of prestressed steel strands, which comprises a wall body, edge vertical steel bars, vertical distribution steel bars and steel strands; the edge vertical steel bars are arranged at the edge parts of the two sides of the wall body; a rectangular notch is reserved at the bottom of the wall body at the position corresponding to the edge vertical steel bar; the lower parts of the edge vertical steel bars are exposed in the rectangular notches; the vertically distributed reinforcing steel bars are arranged at intervals at the positions without gaps of the wall body, the upper parts of the vertically distributed reinforcing steel bars extend out of the top of the wall body, and the lower parts of the vertically distributed reinforcing steel bars are flush with the bottom of the wall body; through long grouting holes are uniformly arranged at the non-gap part of the wall body; the steel strand is arranged in the through-length grouting hole, cement mortar is poured into the through-length grouting hole, and the cement mortar wraps the steel strand. The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires has simple structure, and its vertical connection problem that can effectively solve precast concrete shear force wallboard.

Description

Adopt precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires

[ technical field ] A method for producing a semiconductor device

The utility model relates to a precast concrete shear force wallboard, concretely relates to adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires belongs to building engineering technical field.

[ background of the invention ]

The high-rise residential buildings in China commonly adopt a concrete shear wall structure, namely, the vertical stress member is a concrete wall body. With the assembly type construction mode vigorously pushed by the government, more and more houses with high-rise concrete shear wall structures are assembled and constructed by adopting precast concrete shear wall boards. Two problems must be solved when precast concrete shear wall panel assembled is built: firstly, connecting vertical steel bars in the precast concrete shear wall panel; and secondly, connecting the horizontal concrete connecting joints at the bottom of the precast concrete shear wall panel.

At present, the connection of vertical reinforcing bar mainly adopts steel bar sleeve grout to connect in the precast concrete shear force wallboard, but the reinforcing bar of this method and sleeve location difficulty, and the grout quality is difficult to guarantee, leads to appearing a lot of construction quality problems, and the scaling is more. In addition, the horizontal concrete connecting joints at the bottom of the precast concrete shear wall panel are also connected mainly through grouting, but the grouting connecting surfaces are easily disturbed by external force on a construction site to generate cracks, and the connecting effect is seriously influenced.

Therefore, in order to solve the above technical problems, it is necessary to provide an innovative precast concrete shear wall panel adopting prestressed steel strands for vertical connection so as to overcome the above-mentioned defects in the prior art.

[ Utility model ] content

In order to solve the problem, an object of the utility model is to provide an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires, its vertical connection problem that can effectively solve precast concrete shear force wallboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a precast concrete shear wallboard adopting vertical connection of prestressed steel strands comprises a wall body, edge vertical steel bars, vertically distributed steel bars and steel strands; the edge vertical steel bars are arranged at the edge parts of two sides of the wall body; a rectangular notch is reserved at the bottom of the wall body at the position corresponding to the edge vertical steel bar; the lower parts of the edge vertical steel bars are exposed in the rectangular notches; the vertically distributed reinforcing steel bars are arranged at intervals at the positions without gaps of the wall body, the upper parts of the vertically distributed reinforcing steel bars extend out of the top of the wall body, and the lower parts of the vertically distributed reinforcing steel bars are flush with the bottom of the wall body; through long grouting holes are uniformly arranged at the non-gap part of the wall body; the steel strand is arranged in the through-length grouting hole, cement mortar is poured into the through-length grouting hole, and the cement mortar wraps the steel strand.

The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires further does: the hole site center of grout hole is in the wall body thickness direction is set up centrically to arrange along the full length of wall body height.

The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires further does: the through-length grouting hole is provided with an opening on one side wall surface of the bottom of the wall body; and the through-length grouting holes are provided with grout outlet holes at intervals along the height direction of the through-length grouting holes.

The utility model discloses an adopt vertical precast concrete shear force wallboard of connecting of prestressed steel strand wires still does: the through-length grouting holes are staggered with the positions of the vertically distributed reinforcing steel bars.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires to leave the breach in wall body edge part bottom, the thick reinforcing bar in this position of being convenient for from this carries out mechanical connection or ligature overlap joint, and the connection quality of reinforcing bar is convenient for inspect and accept from this, and this breach position concrete can together pour with cast-in-place connection position between the wall body simultaneously, and the wholeness is better.

2. The utility model discloses an adopt vertical distribution reinforcing bar of precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires all not reserve the distribution reinforcing bar with the lower floor and be connected, but adopt the steel strand wires of high strength to replace and carry out vertical connection, can avoid a large amount of muffjoint, the construction inconvenience and the quality problems that bring do benefit to taking one's place rapidly of wall body.

3. The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires adopts the steel strand wires to carry out vertical connection, and the steel strand wires are long again soft on the one hand, can curl in the job site, then can through put into a haulage rope at wall body full length grout hole top, the rope end establishes a clip, through the opening of full length grout hole bottom, cliies the steel strand wires tip that the lower floor passed, then pulls the haulage rope and pulls out the steel strand wires full length grout hole, transmits the last floor from this; in addition, the steel strand can also be rapidly connected through the connecting piece, so that the construction is convenient and fast, and the construction workload and the construction difficulty can not be increased.

4. The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires accurate back of taking one's place at the job site, can use small-size tensioning equipment to be in wall body top stretch-draw steel strand wires, and the anchor is in the wall body top, so through the prestressing force effect of steel strand wires, improved on the one hand wall body bottom surface and construction surface's connection for the mortar layer of laying on the construction surface of prerequisite bottom can bond upper and lower structure better, has improved simultaneously the self-stability ability of wall body in the construction stage has prevented toppling of construction stage wall body, and the construction is safer.

5. The utility model discloses an adopt the steel strand wires of the vertical precast concrete shear force wallboard of connecting of prestressing force steel strand wires is very high because of its intensity, though carried out the prestressing force and stretched, still can replace in major structure use stage vertical distribution reinforcing bar bears the pulling force or the pressure that the wall body received.

6. The utility model discloses an adopt precast concrete shear force wallboard of vertical connection of prestressed steel strand wires to pass through the prestressing force effect of steel strand wires makes the precast shear force wall body that the upper and lower floor corresponds the position better at use stage wholeness, when the earthquake load effect is down, be difficult for appearing loose condition between the wall body, structure main part anti-seismic performance is better.

[ description of the drawings ]

Fig. 1 is the utility model discloses an adopt precast concrete shear force wallboard's of vertical connection of prestressing force steel strand wires structural schematic diagram.

Fig. 2 is a cross-sectional view taken along a-a in fig. 1.

[ detailed description ] embodiments

Please refer to the attached drawings 1 and 2 of the specification, the utility model discloses a precast concrete shear wall panel adopting vertical connection of prestressed steel strands, which comprises a wall body 1, edge vertical steel bars 2, vertical distribution steel bars 12, steel strands 3 and the like.

The edge vertical steel bars 2 are arranged at the edge parts of two sides of the wall body 1. And rectangular gaps 11 are reserved at the bottoms of the corresponding positions of the edge vertical steel bars 2 of the wall body 1. The lower part of the edge vertical steel bar 2 is exposed in the rectangular notch 11. A rectangular notch 11 is reserved at the bottom of the edge part of the wall body 1, so that thick steel bars at the part can be mechanically connected or bound and overlapped, the connection quality of the steel bars is convenient to check and accept, meanwhile, the 11 concrete at the notch part can be poured together with a cast-in-place connection part between the wall bodies, and the integrity is better.

Vertical distribution reinforcing bar 12 interval arrangement is at the unnotched position of wall body 1, and upper portion stretches out wall body 1 top, and the lower part is parallel and level with wall body 1 bottom, makes vertical distribution reinforcing bar 12 all not be connected with the lower floor reservation distribution reinforcing bar.

The unnotched part of the wall body 1 is uniformly provided with through-long grouting holes 4, and the through-long grouting holes 4 are staggered from the positions of the vertically distributed reinforcing steel bars 12. The steel strand 3 is arranged in the through-length grouting hole 4, cement mortar 42 is poured into the through-length grouting hole 4, and the steel strand 3 is wrapped by the cement mortar 42. The steel strand wires 3 with high strength are adopted to be vertically connected, so that a large number of sleeve connections can be avoided, the problems of construction inconvenience and quality brought by the sleeve connections can be solved, and the rapid positioning of the wall body is facilitated.

Furthermore, the hole site center of the grouting hole 4 is arranged in the middle of the wall body 1 in the thickness direction and is arranged along the full length of the wall body 1. The through-length grouting hole 4 is provided with an opening 41 on the wall surface 1 at one side of the bottom of the wall body 1. The through-length grouting holes 4 are provided with the grout outlet holes 43 at intervals along the height direction of the through-length grouting holes, so that the cement mortar 4 is conveniently occluded with the wall body 1.

During construction, a mortar layer is laid on a construction surface corresponding to the bottom of the part of the wall body without the gap before the wall body 1 is in place on a construction site. After the edge vertical steel bars 2 and the lower layer reserved steel bars are in mechanical connection or binding and overlapping connection, the rectangular notch 11 is erected with a formwork to pour concrete. Wall body 1 is in place accurate back at the job site, can use small-size tensioning equipment to be in 1 top stretch-draw of wall body steel strand wires 3 to the anchor is in the wall body top, so through steel strand wires 3's prestressing force effect, improved on the one hand 1 bottom surface of wall body and construction surface's connection for the mortar layer of laying on the prerequisite bottom construction surface can bond upper and lower structure better, has improved simultaneously the wall body is at the self-stability ability of construction stage, has prevented the toppling of construction stage wall body, and the construction is safer.

The utility model discloses a precast concrete shear force wallboard adopts steel strand wires 3 to carry out vertical connection, and on the one hand steel strand wires 3 are long again soft, can curl in the job site, then can through put into a haulage rope at the through-length grout hole 4 top of wall body 1, the rope end establishes a clip, through the opening 41 of through-length grout hole 4 bottom, clip the steel strand wires tip that the lower floor passed up, then pulling the haulage rope and pull out the steel strand wires through-length grout hole 4, transmit the last floor from this; in addition, the steel strand can also be rapidly connected through the connecting piece, so that the construction is convenient and fast, and the construction workload and the construction difficulty can not be increased.

Because of its high strength, the steel strand 3 can replace the vertically distributed steel bars to bear the tension or pressure applied to the wall body in the use stage of the main structure although prestressed tensioning is performed. The precast shear walls at the corresponding positions of the upper and lower floors have better integrity in the use stage under the prestress action of the steel strands 1, and loose conditions are not easy to occur between the walls under the action of earthquake load, so that the earthquake resistance of the main structure body is better.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.

Claims (4)

1. The utility model provides an adopt precast concrete shear force wallboard of vertical connection of prestressing force steel strand wires which characterized in that: the wall comprises a wall body, edge vertical steel bars, vertical distribution steel bars and steel strands; the edge vertical steel bars are arranged at the edge parts of two sides of the wall body; a rectangular notch is reserved at the bottom of the wall body at the position corresponding to the edge vertical steel bar; the lower parts of the edge vertical steel bars are exposed in the rectangular notches; the vertically distributed reinforcing steel bars are arranged at intervals at the positions without gaps of the wall body, the upper parts of the vertically distributed reinforcing steel bars extend out of the top of the wall body, and the lower parts of the vertically distributed reinforcing steel bars are flush with the bottom of the wall body; through long grouting holes are uniformly arranged at the non-gap part of the wall body; the steel strand is arranged in the through-length grouting hole, cement mortar is poured into the through-length grouting hole, and the cement mortar wraps the steel strand.

2. The precast concrete shear wall panel adopting the prestressed steel strand vertical connection of claim 1, wherein: the hole site center of grout hole is in the wall body thickness direction is set up centrically to arrange along the full length of wall body height.

3. The precast concrete shear wall panel adopting the prestressed steel strand vertical connection of claim 1, wherein: the through-length grouting hole is provided with an opening on one side wall surface of the bottom of the wall body; and the through-length grouting holes are provided with grout outlet holes at intervals along the height direction of the through-length grouting holes.

4. The precast concrete shear wall panel adopting the prestressed steel strand vertical connection of claim 1, wherein: the through-length grouting holes are staggered with the positions of the vertically distributed reinforcing steel bars.

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