CN210216741U - Dry-type connected assembly type RC shear wall structure - Google Patents
Dry-type connected assembly type RC shear wall structure Download PDFInfo
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- CN210216741U CN210216741U CN201920378092.5U CN201920378092U CN210216741U CN 210216741 U CN210216741 U CN 210216741U CN 201920378092 U CN201920378092 U CN 201920378092U CN 210216741 U CN210216741 U CN 210216741U
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Abstract
A dry-type connected assembly type RC shear wall structure comprises an upper connecting steel plate, an upper RC shear wall, a lower connecting steel plate matched with the upper connecting steel plate, a lower RC shear wall, and high-strength bolts and screws for fixedly connecting the upper connecting steel plate and the lower connecting steel plate, the upper connecting steel plate and the lower connecting steel plate are respectively provided with a pouring end connected with the upper RC shear wall and the lower RC shear wall and a connecting end for fixing the upper connecting steel plate and the lower connecting steel plate, shear bonds are welded in the pouring ends of the upper connecting steel plate and the lower connecting steel plate, after the upper connecting steel plate and the lower connecting steel plate are respectively welded with the end parts of the distributed steel bars in the upper RC shear wall and the lower RC shear wall, the upper connecting steel plate and the upper RC shear wall are respectively poured into a whole by adopting concrete, the lower connecting steel plate and the lower RC shear wall are respectively formed into a whole, and the upper connecting steel plate and the lower connecting steel plate are fixed into a whole by adopting high-strength bolts and screws. The utility model discloses simple structure, construction make things convenient for fast, practice thrift the cost, self have great anti-shear bearing capacity, deformability and anti-seismic performance, and the dead weight is little, and construction speed is fast, the installation accuracy is high, and engineering application prospect is extensive.
Description
Technical Field
The utility model relates to an assembled RC shear wall structure of dry-type connection belongs to the structural engineering field.
Background
The traditional shear wall material usually adopts reinforced concrete, so that the cross section of the wall body is often wider in order to bear larger transverse load and meet the design requirement, more reinforcing steel bars need to be configured, and the shear wall material is heavy after being poured and formed. Meanwhile, the construction progress is seriously influenced due to the fact that the steel bars are arranged more and fussy. After the concrete is poured, the wall is easy to crack, be brittle and the like under the combined action of large transverse load and self-contraction and creep of the concrete; this not only affects its existing normal use, but also increases its subsequent costs of reinforcement and maintenance.
In recent years, with the rise of assembly type building structures, although a plurality of assembly type shear walls mainly made of reinforced concrete shear walls are also proposed and produced in the industry, the vertical joints and the transverse joints of the shear walls are mostly connected in a wet type. Although the assembled shear wall structure has more reliable connection performance after being improved for many times, the assembled shear wall structure has better integrity and shock resistance. However, wet connection requires wet work on a construction site, which increases consumption of site resources, slows down construction speed, and causes pollution damage to the environment to some extent, thereby limiting the advantage of rapid construction of the fabricated structure. Meanwhile, the method still has the defects of easy cracking, self weight and the like. In the aspect of on-site prefabrication assembly construction, compared with wet connection, dry connection has the advantages of high construction speed, high installation precision, wide engineering application prospect and the like.
However, the existing dry-type connection method has the problems of poor ductility and seismic performance of the fabricated RC shear wall connected by the dry-type connection method due to the problems of insufficient force transmission mechanism and anti-sliding capability at the connection position, and further influences the wide application of the RC shear wall in the assembly construction.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prior art not enough and provide a simple structure, construction convenience, practice thrift the cost, self have great anti-shear bearing capacity, deformability and anti-seismic performance, the dead weight is little, the assembled RC shear wall structure of dry-type connection that the construction speed is fast, the installation accuracy is high.
In order to solve the above technical problem, the specific embodiment of the present invention is: the upper connecting steel plate and the lower connecting steel plate are respectively provided with a pouring end connected with the upper RC shear wall and a connecting end for fixing the upper connecting steel plate and the lower connecting steel plate, shear keys are welded in the pouring ends of the upper connecting steel plate and the lower connecting steel plate, and after the upper connecting steel plate and the lower connecting steel plate are respectively welded with the end parts of reinforcing steel bars distributed in the upper RC shear wall and the lower RC shear wall, the upper connecting steel plate and the upper RC shear wall, the lower connecting steel plate and the lower RC shear wall are respectively poured into a whole through concrete.
Furthermore, the pouring ends of the upper connecting steel plate and the lower connecting steel plate are both U-shaped, and shear keys are welded on the inner walls of the grooves of the U-shaped pouring ends of the upper connecting steel plate and the lower connecting steel plate.
Furthermore, the length and the width of the pouring ends of the upper connecting steel plate and the lower connecting steel plate are respectively matched with the length and the width of the upper RC shear wall and the lower RC shear wall.
Furthermore, a plurality of rows of shear keys are welded on the inner walls of the U-shaped pouring end grooves of the upper connecting steel plate and the lower connecting steel plate along the length direction, and the shear keys are distributed in a rhombic shape along the length direction.
Furthermore, the connecting end of the upper connecting steel plate is a convex connecting piece, the connecting end of the lower connecting steel plate is a concave connecting piece matched with the upper connecting steel plate, and the convex connecting piece and the concave connecting piece are inserted and then are connected and fixed through a high-strength bolt and a screw.
Furthermore, the surfaces of the upper connecting steel plate, the lower connecting steel plate, the high-strength bolt and the screw are coated with antirust coating layers.
Furthermore, the thicknesses of the upper connecting steel plate and the lower connecting steel plate are 1/15-1/10 of the thicknesses of the upper RC shear wall and the lower RC shear wall respectively.
Furthermore, the thickness of the upper RC shear wall and the lower RC shear wall is 1/10-1/12 of the layer height.
Furthermore, the upper connecting steel plate and the lower connecting steel plate are fixedly connected through a plurality of rows of high-strength bolts and/or screws distributed on the connecting ends along the length direction.
Compared with the prior art, the utility model discloses simple structure, reasonable in design, it compromises convenient assembly, has great horizontal bearing capacity, ductility performance and anti-seismic performance, and the installation accuracy is high, good characteristics such as engineering application prospect is wide. The upper connecting steel plate and the lower connecting steel plate are connected in a dry mode through the high-strength bolt, after the high-strength bolt is subjected to pretightening force through the torque wrench, the anti-sliding shearing force is generated on the interface between the two steel plates, and therefore transverse loads are effectively transmitted. A plurality of rows of shear keys are arranged on the inner sides of the U-shaped grooves at the pouring ends of the upper connecting steel plate and the lower connecting steel plate so as to ensure the reliability of the connection between the upper connecting steel plate and the concrete interface. Meanwhile, the U-shaped frames of the upper connecting steel plate and the lower connecting steel plate are respectively welded with the ends of the distributed steel bars in the upper RC shear wall and the lower RC shear wall, so that the steel bars are anchored; in addition, the U-shaped embedded frame also plays a role in restraining concrete at the end part of the shear wall, and connection stability is guaranteed. Therefore, the phenomena of slippage, separation and the like between the upper connecting steel plate and the lower connecting steel plate and the upper RC shear wall and between the upper connecting steel plate and the lower RC shear wall under the action of larger transverse loads (such as wind loads and earthquake loads) are avoided. In the assembling construction process, the upper end shear wall body and the lower end shear wall body can be effectively connected only by a high-strength bolt dry-type connecting mode, and the advantages of convenience in assembly, accuracy and rapidness are achieved.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2(a) is a side sectional view of the upper and lower RC shear wall structures of the present invention;
fig. 2(b) is an assembly view of the upper and lower RC shear wall structures of the present invention;
FIG. 3 is a front view of the upper and lower steel plate connecting members of the present invention;
in the figure: 1-mounting an RC shear wall; 2-connecting a steel plate; 3-a shear key; 4-lower connecting steel plate; 5-lower RC shear wall; 6-high strength bolt; 7-a screw; 8-reserving holes;
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings and detailed description.
As shown in fig. 1 to 3, a dry-type connected fabricated RC shear wall structure includes an upper connection steel plate 2, an upper RC shear wall 1, a lower connection steel plate 4, a lower RC shear wall 5, a high-strength bolt 6, and a screw 7. The upper connecting steel plate 2 and the lower connecting steel plate 4 are respectively provided with a pouring end connected with the upper RC shear wall 1 and the lower RC shear wall 5 and a connecting end for fixing the upper connecting steel plate 2 and the lower connecting steel plate 4. The pouring ends of the upper connecting steel plate 2 and the lower connecting steel plate 4 are U-shaped, the inner walls of the grooves of the U-shaped pouring ends of the upper connecting steel plate and the lower connecting steel plate are welded with a plurality of rows of shear keys 3 along the length direction, and the shear keys 3 are distributed in a rhombic shape along the length direction. Go up connecting steel plate 2's link and be convex connecting piece, lower connecting steel plate 4's link be with last connecting steel plate spare assorted concave connecting piece, convex connecting piece is connected fixedly with concave connecting piece cartridge back through high strength bolt 6, screw 7 dry-type, go up connecting steel plate 2 and lower connecting steel plate 4's U type recess frame respectively with last RC shear force wall and the tip welding of lower RC shear force internal distribution reinforcing bar, make a mould respectively to last RC shear force wall 1, lower RC shear force wall 5 after the welding is accomplished, treat that the mould makes and accomplish after, carry out concrete placement.
In the embodiment, the thicknesses of the upper connecting steel plate 2 and the lower connecting steel plate 4 are 1/10-1/15 of the thicknesses of the upper shear wall and the lower shear wall respectively.
The surfaces of the upper connecting steel plate 2 and the lower connecting steel plate 4, the high-strength bolt 6 and the screw 7 are coated with antirust paint, and the novel antirust paint mainly comprises phosphorus iron micro powder, composite phosphorus iron powder, composite iron titanium powder and other paints. And finally, the shear wall with the upper end provided with the upper connecting steel plate 2 and the shear wall with the lower end embedded with the lower connecting steel plate 4 are effectively connected in a dry mode through high-strength bolts 6 and screws 7, and the thickness of the shear wall is 1/10-1/12 of the floor height.
A construction method of a dry-type connected fabricated RC shear wall comprises the following steps:
(1) manufacturing an upper connecting steel plate and a lower connecting steel plate:
the thickness of the steel plate is set according to the requirement of shear-resistant bearing capacity of the shear wall, the manufactured upper connecting steel plate 2 and the manufactured lower connecting steel plate 4 are respectively provided with a pouring end and a connecting end, the pouring ends of the upper connecting steel plate 2 and the lower connecting steel plate 4 are U-shaped, and a plurality of rows of shear keys 3 are welded on the inner wall of the grooves of the U-shaped pouring ends of the upper connecting steel plate 2 and the lower connecting steel plate 4 along the length direction; the connecting end of the upper connecting steel plate is made into a convex upper connecting steel plate piece, the connecting end of the lower connecting steel plate is made into a concave lower connecting steel plate piece matched with the upper connecting steel plate piece, and a plurality of rows of reserved holes 8 are distributed on the connecting ends of the upper and lower connecting steel plates along the length direction;
(2) welding and pouring the RC shear wall with the upper end and the lower end embedded with the steel plates:
respectively welding an upper connecting steel plate 2 and a lower connecting steel plate 4 with the ends of distributed steel bars in an upper RC shear wall 1 and a lower RC shear wall 5 into a whole through U-shaped groove frames, respectively performing die-making on the upper RC shear wall and the lower RC shear wall after welding is completed, and performing concrete pouring after the die-making is completed;
(3) and (5) maintenance:
curing the upper and lower cast RC shear walls;
(4) coating a composite novel antirust corrosion material:
after maintenance is finished, the upper connecting steel plate 2, the lower connecting steel plate 4, the high-strength bolt 6 and the screw 7 are coated with antirust paint;
(5) construction and assembly:
the upper connecting steel plate 2 and the lower connecting steel plate 4 are in dry connection through the high-strength bolt 6 and the screw 7, and finally effective fixed connection between the upper RC shear wall and the lower RC shear wall is achieved.
The above is a preferred embodiment, and the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (9)
1. The utility model provides an assembled RC shear wall structure of dry-type connection which characterized in that: the high-strength steel-bar-type shear wall comprises an upper connecting steel plate, an upper RC shear wall, a lower connecting steel plate matched with the upper connecting steel plate, a lower RC shear wall and a high-strength bolt and/or screw for fixedly connecting the upper connecting steel plate with the lower connecting steel plate, wherein the upper connecting steel plate and the lower connecting steel plate are respectively provided with a pouring end connected with the upper RC shear wall and the lower RC shear wall and a connecting end for fixing the upper connecting steel plate and the lower connecting steel plate, shear keys are welded in the pouring ends of the upper connecting steel plate and the lower connecting steel plate, the upper connecting steel plate and the lower connecting steel plate are respectively welded with the end parts of reinforcing steel bars distributed in the upper RC shear wall and the lower RC shear wall, and the upper connecting steel plate, the upper RC shear wall, the lower connecting steel plate and the lower RC.
2. The dry-connected fabricated RC shear wall structure of claim 1, wherein the pouring ends of the upper and lower connecting steel plates are U-shaped, and shear keys are welded on the inner walls of the grooves of the U-shaped pouring ends of the upper and lower connecting steel plates.
3. The dry-connect fabricated RC shear wall structure of claim 2, wherein the lengths and widths of the upper and lower connecting steel plate pouring ends match the lengths and widths of the upper and lower RC shear walls, respectively.
4. The dry-connected fabricated RC shear wall structure of claim 2, wherein a plurality of rows of shear keys are welded to the inner walls of the U-shaped pouring end grooves of the upper and lower connecting steel plates along the length direction, and the shear keys are distributed in a rhombic shape along the length direction.
5. The dry-connected fabricated RC shear wall structure according to claim 2, wherein the connecting end of the upper connecting steel plate is a male connecting member, the connecting end of the lower connecting steel plate is a female connecting member matching with the upper connecting steel plate, and the male connecting member and the female connecting member are inserted and fixed into a whole by high-strength bolts and/or screws.
6. The dry-connect fabricated RC shear wall structure of claim 1, wherein the surfaces of the upper and lower connection steel plates, the high-strength bolts, and the screws are painted with a layer of anti-rust paint.
7. The dry-connected fabricated RC shear wall structure of claim 1, wherein the thicknesses of the upper and lower connecting steel plates are 1/15-1/10 of the thicknesses of the upper and lower RC shear walls, respectively.
8. The dry-connect fabricated RC shear wall structure of claim 1, wherein the upper and lower RC shear walls are each of a thickness of layers 1/10-1/12.
9. The dry-connected fabricated RC shear wall structure of claim 1, wherein the upper and lower connection steel plates are connected and fixed by a plurality of rows of high-strength bolts and/or screws arranged along the length direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920378092.5U CN210216741U (en) | 2019-03-22 | 2019-03-22 | Dry-type connected assembly type RC shear wall structure |
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| CN201920378092.5U CN210216741U (en) | 2019-03-22 | 2019-03-22 | Dry-type connected assembly type RC shear wall structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898667A (en) * | 2019-03-22 | 2019-06-18 | 中南大学 | A kind of the assembled RC shear wall structure and its construction method of dry type connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898667A (en) * | 2019-03-22 | 2019-06-18 | 中南大学 | A kind of the assembled RC shear wall structure and its construction method of dry type connection |
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