Prefabricated shear wall in cast-in-situ connection mode

A connection method and prefabricated shear force technology, applied in the direction of walls, building materials, building components, etc., can solve the problems of insufficient anchorage length of steel bars, difficulty in inspection, water seepage, etc., so as to improve the resistance to rainwater infiltration and reduce support Workload, the effect of increasing the contact area

Active Publication Date: 2016-05-25
华汇工程设计集团股份有限公司
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AI-Extracted Technical Summary

Problems solved by technology

Although the experimental effect of this method in the laboratory can meet the force requirements, there are many problems in reality, and it also leaves many quality problems for the building structure.
If due to prefabrication or construction errors, the upper and lower shear wall steel bars may be misaligned. At this time, it is difficult to insert the lower steel bars into the slurry anchor sleeves. In addition, the connection method of the slurry anchor sleeves requires a certain anchorage length for the upper and lower steel bars. , the steel bar should be placed in the center of the grouting anchor casing, and the grout should be injected from the grouting hole in the lower part of the grouting anchor casing at a constant spe...
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Method used

Described bottom lateral plate 6 and body of wall 1 are integrated, and are positioned at the outside of concave section 5 on the bottom, and it can avoid setting up the lateral formwork, reduce on-the-spot formwork workload, and guarantee safe construction. The bottom outer plate 6 has a thickness of not less than 5 cm, and an additional vertical reinforcement 61 is provided inside it, and the additional vertical reinforcement 61 is overlapped with the vertical reinforcement 12 of the wall. The vertical steel bar 12 of the wall is bent at the lower part where it overlaps with the additional vertical steel bar 61 , and extends into the concave section 5 on the bottom.
[0024] Wherein, both sides of the body of wall 1 are provided with side edges 11 respectively, and a groove 7 is provided in the middle of each side edge 11. The groove 7 r...
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Abstract

The invention relates to a prefabricated shear wall in a cast-in-situ connection mode. The prefabricated shear wall comprises a wall, pier heads, bottom upper concave sections and a bottom outer side plate. Side edges are respectively arranged on two sides of the wall, and a groove is formed in the middle of each side edge and is vertically perforated through the wall; wall vertical reinforcing bars are arranged in the wall; the bottom upper concave sections are uniformly distributed at the bottom of the wall; each pier head is arranged between the two corresponding adjacent bottom upper concave sections; air holes are formed in positions above the middles of the bottom upper concave sections; the air holes are communicated with the bottom upper concave sections via pipelines; the thicknesses of the pier heads are identical to the thickness of the wall, and holes are formed in the pier heads; the bottom outer side plate and the wall are integrated with each other, and the bottom outer side plate is positioned on the outer sides of the bottom upper concave sections; internally threaded pipes are embedded in positions close to the side edges of the wall, above the bottom upper concave sections and on the pier heads. The prefabricated shear wall in the cast-in-situ connection mode has the diversified advantages of firm structure, convenience in construction, reliability in connection and the like.

Application Domain

Technology Topic

Image

  • Prefabricated shear wall in cast-in-situ connection mode
  • Prefabricated shear wall in cast-in-situ connection mode
  • Prefabricated shear wall in cast-in-situ connection mode

Examples

  • Experimental program(1)

Example Embodiment

[0023] Please refer to the instruction manual figure 1 Attached Figure 4 As shown, the present invention is a prefabricated shear wall adopting a cast-in-place connection method, which is composed of a wall 1, a pier head 4, a bottom upper concave section 5, and a bottom outer plate 6 and other parts.
[0024] Wherein, side edges 11 are respectively provided on both sides of the wall body 1, and a groove 7 is provided in the middle of each side edge 11. The groove 7 penetrates the wall up and down, which can effectively increase the contact area between the side 11 of the prefabricated wall panel and the cast-in-situ part, and can effectively improve the resistance of the connection part of the prefabricated wall panel and the cast-in-situ part to rainwater penetration during construction use .
[0025] The wall 1 is provided with wall vertical steel bars 12. The wall vertical steel bars 12 do not need to be connected by embedded grout anchor casings. The connections can be welded, overlapped, or mechanically connected. The quality of the connection can be intuitively checked, and all the vertical steel bars 12 can be connected. As a result, the connection quality of the prefabricated shear wall panels can be effectively guaranteed, and hidden dangers of connection can be eliminated.
[0026] The upper concave section 5 at the bottom is evenly distributed on the bottom of the wall 1 and its height is not less than 150 cm. The pier 4 is provided between two adjacent upper concave sections 5 at the bottom. A vent 3 is provided above the middle position of the upper concave section 5 at the bottom; the vent 3 is communicated with the upper concave section 5 at the bottom through a pipe 31. The diameter of the vent hole 3 is the same as the diameter of the pipe 31, and both are not less than 5 cm, and the vent hole 3 is higher than the top surface of the bottom upper concave section 5 not less than 20 cm. The air holes 3 and the pipe 31 can effectively exhaust the air in the bottom concave section 5 when the concrete is poured in situ, and the vent holes are relatively high. The concrete can only be filled with concrete in all the bottom concave sections. It may overflow from the vent holes, and the cast-in-place concrete in the connecting pipe will also exert pressure on the cast-in-situ concrete at the bottom upper concave section 5, thereby ensuring that the cast-in-place concrete is poured densely.
[0027] The thickness of the pier 4 is the same as the thickness of the wall 1, and a hole 41 is provided therein. The width of the hole 41 is half of the wall 1 and the height is not less than 150 cm. Further, the width of the pier head 4 is smaller than the longitudinally distributed spacing of the wall vertical steel bars 12, and the pier head avoids the position of the wall vertical steel bars 12. On the one hand, the pier head 4 facilitates the erection of wall panels at the construction site and supports the formwork of the concave section on the bottom. On the other hand, the hole provided in the middle is relatively large. When the concrete is poured, the cast-in-place concrete can be removed from the The connecting parts between the wall panels circulate through holes, so there is no need to specially set the concrete pouring port of the upper concave section 5 at the bottom.
[0028] The bottom outer side panel 6 is integrated with the wall body 1 and is located outside the upper concave section 5 at the bottom, which can avoid supporting the outer side template, reduce the workload of on-site mold support, and ensure safe construction. The thickness of the bottom outer side plate 6 is not less than 5 cm, and additional vertical steel bars 61 are provided therein, and the additional vertical steel bars 61 overlap the wall vertical steel bars 12. The wall vertical steel bars 12 are bent at the lower part of the overlapping position with the additional vertical steel bars 61 and extend into the upper concave section 5 at the bottom.
[0029] The wall body 1 is pre-embedded with internal threaded pipes 2 near the side, above the concave section on the bottom and on the pier head. These internally threaded pipes 2 can be connected with the screw when the cast-in-place part supports the template, which effectively solves the problem. The problem of prefabricated wall panels supporting formwork.
[0030] The above specific implementations are only preferred examples of this creation, and are not used to limit this creation. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of this creation should be included in this creation Within the scope of protection.
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PUM

PropertyMeasurementUnit
Height>= 150.0cm
Thickness>= 5.0cm
Diameter>= 5.0cm
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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