CN210857596U - Prefabricated assembly type non-reinforced concrete shear wall - Google Patents
Prefabricated assembly type non-reinforced concrete shear wall Download PDFInfo
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- CN210857596U CN210857596U CN201921307582.2U CN201921307582U CN210857596U CN 210857596 U CN210857596 U CN 210857596U CN 201921307582 U CN201921307582 U CN 201921307582U CN 210857596 U CN210857596 U CN 210857596U
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Abstract
The utility model provides a prefabricated assembled non-reinforced concrete shear force wall, include: prefabricating a concrete shear wall, a groove-shaped connecting piece and a grouting pipe; a bolt hole for connecting a groove-shaped connecting piece is reserved at the upper part of the precast concrete shear wall; the bolt hole penetrates through the precast concrete shear wall along the outer direction of the plane of the precast concrete shear wall; the lower part of the precast concrete shear wall is provided with bolt holes which are arranged in the same way as the upper part, and two ends of the wall are respectively provided with an L-shaped grouting hole which is communicated with the side surface and the bottom surface of the wall; the groove-shaped connecting piece is a groove-shaped steel piece, the upper side and the lower side of a web plate of the groove-shaped connecting piece are respectively provided with a bolt hole for connecting the precast concrete shear wall, and the hole sites correspond to the hole sites of the precast concrete shear wall one by one; the grout pipe is "L shape", and grout pipe both ends are filling end and shrink end respectively.
Description
Technical Field
The utility model relates to a building structure especially relates to prefabricated assembled non-reinforced concrete shear force wall and construction method thereof.
Background
The assembled shear wall structure is an important part of the vigorous development of assembled buildings in China. The construction procedures of the prefabricated parts of the existing prefabricated reinforced concrete shear wall are multiple; on-site steel bar connection usually adopts steel bar sleeve grouting connection or steel bar slurry anchor lap joint connection, the construction process is complicated, and the construction quality is difficult to guarantee. In addition, as the reinforced concrete member is mostly in a working state with cracks, corrosive media easily invade into the member to corrode the reinforcing steel bars, the bearing capacity and durability of the structure are damaged, and the safety of lives and properties of people is endangered. Therefore, the traditional prefabricated reinforced concrete frame has many defects in the aspects of production efficiency, quality safety and the like. If the use of reinforcing steel bars in concrete shear wall members can be avoided, the above problems can be solved, and the manufacturing process and the field assembly procedure can be simplified.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that shortcoming and not enough to traditional prefabricated assembled reinforced concrete shear force wall have proposed a prefabricated assembled does not have reinforced concrete shear force wall, have not only subtracted the use of reinforcing bar to guaranteed that the component has higher intensity and good ductility, and adopt concatenation node and construction method, can effective resources are saved, improve the efficiency of construction, ensure quality safety.
The technical scheme of the utility model as follows: a prefabricated, assembled, non-reinforced concrete shear wall, comprising: prefabricating a concrete shear wall, a groove-shaped connecting piece and a grouting pipe;
the precast concrete shear wall is formed by pouring polyethylene fiber concrete; the polyethylene fiber concrete is formed by mixing cement, sand, water, fly ash, a water reducing agent and polyethylene fibers;
a bolt hole for connecting a groove-shaped connecting piece is reserved at the upper part of the precast concrete shear wall; the bolt hole penetrates through the precast concrete shear wall along the outer direction of the plane of the precast concrete shear wall; the lower part of the precast concrete shear wall is provided with bolt holes which are arranged in the same way as the upper part, and two ends of the wall are respectively provided with an L-shaped grouting hole which is communicated with the side surface and the bottom surface of the wall;
the groove-shaped connecting piece is a groove-shaped steel piece, the upper side and the lower side of a web plate of the groove-shaped connecting piece are respectively provided with a bolt hole for connecting the precast concrete shear wall, and the hole sites correspond to the hole sites of the precast concrete shear wall one by one;
the grout pipe is "L shape", and grout pipe both ends are filling end and shrink end respectively.
In a preferred embodiment: the distance between the flanges of the groove-shaped connecting piece is equal to the width of the precast concrete shear wall, and the width of the flange is equal to half of the thickness of the precast concrete shear wall.
In a preferred embodiment: the outer diameter of the middle section of the grouting pipe is equal to the inner diameter of the grouting hole, the outer diameter of the contraction end pipe is gradually reduced so as to be conveniently inserted into the grouting hole, and the outer diameter of the grouting end is gradually enlarged so as to be convenient for grouting.
In a preferred embodiment: the L-shaped grouting holes are not intersected with the reserved bolt holes and cannot be covered by the connecting piece.
The utility model also provides a construction method of prefabricated assembled reinforced concrete-free shear wall as in the claim, this method includes following step:
1) prefabricating the concrete shear wall and the groove-shaped connecting piece;
2) butt-joint of precast concrete shear walls: ensuring that L-shaped grouting holes at two ends of the precast concrete shear wall are arranged at the upper part; hoisting a precast concrete shear wall and positioning the precast concrete shear wall and a next shear wall in the same vertical direction, surrounding the butt joint end by using two groove-shaped connecting pieces, and fixing the groove-shaped connecting pieces and the upper and lower precast concrete shear walls by using bolts;
3) welding the groove-shaped connecting piece: and (4) performing cover surface welding on the two pairs of flanges butted by the two groove-shaped connecting pieces along the seam.
4) Pouring polyethylene fiber concrete: the method comprises the steps of inserting the contraction end and the middle section with proper length of an L-shaped grouting pipe into any grouting hole reserved at the bottom of the precast concrete shear wall, ensuring that the opening of the grouting end faces upwards, pouring polyethylene fiber concrete from the grouting end, stopping grouting when grouting holes on the other side are evenly overflowed, pulling out the grouting pipe, and sealing the grouting holes on the two sides with wax.
The utility model discloses an advantage does with outstanding effect:
1. the prefabricated assembly type non-reinforced concrete shear wall prefabricated member is directly poured by using the ultra-high-ductility polyethylene fiber concrete, so that the superior characteristics of high strength, good ductility and corrosion resistance of the ultra-high-ductility polyethylene fiber concrete are fully exerted, the quality safety of the structure is ensured, and the manufacturing process of the prefabricated member is greatly simplified.
2. The non-reinforced concrete shear wall avoids the use of reinforcing steel bars in wall components, perfectly solves the problems of durability reduction and bearing capacity loss caused by the work with cracks and the corrosion of the reinforcing steel bars, and greatly saves steel.
3. The utility model discloses possess good feasibility technically, and construction method is simple, has guaranteed site operation quality, has improved site operation efficiency and security.
Drawings
FIG. 1 is a schematic view of a precast concrete shear wall of the present invention;
fig. 2 is a schematic view of a channel connector of the present invention;
FIG. 3 is a schematic view of the grouting pipe of the present invention;
FIG. 4 is a schematic view of the grouting of the present invention;
FIG. 5 is a schematic view of the finished product of the present invention;
in the figure: 1-prefabricating a concrete shear wall; 2-bolt holes; 3- "L-shaped" grouting holes; 4-a channel shaped connector; 5-a web; 6-flange; 7-a perfusion end; 8-middle section; 9-a constricted end; 10-grouting pipe; 11-nut.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
A prefabricated assembly type non-reinforced concrete shear wall comprises a prefabricated concrete shear wall 1, a groove-shaped connecting piece 4 and a grouting pipe 10.
The precast concrete shear wall is formed by pouring ultra-high-ductility polyethylene fiber concrete (the mixing proportion can refer to table 1), has the advantages of high strength, good ductility, corrosion resistance and the like through experimental verification, and can be directly applied to engineering structures.
TABLE 1 reference mixing ratio of ultra-high ductility polyethylene fiber concrete (kg/m3)
The upper part of the precast concrete shear wall 1 is provided with a bolt hole 2 for connecting a groove-shaped connecting piece 4; the bolt holes 2 penetrate through the precast concrete shear wall 1 along the plane outer direction of the precast concrete shear wall 1. The lower part of the precast concrete shear wall 1 is provided with bolt holes 2 which are arranged in the same way as the upper part, and two ends of the wall are respectively provided with an L-shaped grouting hole 3 which is communicated with the side surface and the bottom surface of the wall.
The groove-shaped connecting piece 4 is a groove-shaped steel piece, the inner space of the flange 6 of the groove-shaped connecting piece 4 is equal to the width of the precast concrete shear wall 1, the width of the flange 6 is equal to half of the thickness of the precast concrete shear wall 1, the upper side and the lower side of the web 5 are respectively provided with a bolt hole 2 for connecting the precast concrete shear wall 1, and the hole positions are in one-to-one correspondence with the hole positions of the precast concrete shear wall 1. The distance between the wall-wall butt joint surfaces after connection is about 30mm by determining the proper size of the groove-shaped connecting piece 4.
The grout pipe 10 is "L shape", and grout pipe 10 both ends are filling end 7 and shrink end 9 respectively, and 8 external diameters in grout pipe middle section are equal with grout hole 10 internal diameters, and the external diameter convergent 4mm and the extension 30mm of shrink end 9 pipe to insert it into grout hole 3, fill 7 external diameters divergent 60mm and the extension 40mm of end, so that the grout.
The L-shaped grouting hole 3 is not intersected with the reserved bolt hole 2 and cannot be covered by the connecting piece 4.
The bolt holes 2 are arranged within one third of the width of the two ends of the precast concrete shear wall 1, the middle distances are appropriately encrypted, and the middle distances and the edge distances of all the bolt holes 2 are guaranteed to be not less than 3 times of the hole diameter.
The utility model also provides a construction method of prefabricated assembled non-reinforced concrete shear force wall, this method includes following step:
the precast concrete shear wall 1, the groove-shaped connecting piece 4 and the grouting pipe 10 are reserved with the grouting holes 3 and the bolt holes 2 according to the description, so that the grouting holes 3 are not intersected with the reserved bolt holes 2 and cannot be covered by the connecting piece 4 after the connecting piece 4 is installed, and the opening positions of the groove-shaped connecting piece 4 are in one-to-one correspondence with the positions of the bolt holes 2 of the component surface where the groove-shaped connecting piece 4 is used.
Butt-joint precast concrete shear wall 1: and L-shaped grouting holes 3 at two ends of the precast concrete shear wall 1 are ensured to be arranged at the upper part. A precast concrete shear wall 1 is lifted and positioned in the same vertical direction as the next shear wall 1, two groove-shaped connecting pieces 4 are used for surrounding butt joint ends, and the groove-shaped connecting pieces 4 and the upper and lower precast concrete shear walls 1 are fixed through bolts.
Welding the groove-shaped connecting piece 4: and (3) performing cover welding on the two pairs of flanges 6 butted with the two groove-shaped connecting pieces 4 along the seam.
Pouring the ultra-high-ductility polyethylene fiber concrete: inserting the contraction end 9 and the middle section 8 with proper length of the grouting pipe 10 into any grouting hole 3 reserved at the bottom of the precast concrete shear wall 1, ensuring that the opening of the grouting end 7 is upward, pouring the ultra-high-ductility polyethylene fiber concrete from the grouting end 7, stopping grouting when the grouting holes 3 on the other side are evenly overflowed, pulling out the grouting pipe 10 and sealing the grouting holes 3 on the two sides with wax.
The above description is only an exemplary embodiment of the present invention, and the scope of the present invention should not be limited accordingly. The equivalent changes and modifications made according to the patent scope and the content of the specification of the present invention should still fall within the scope covered by the present invention.
Claims (4)
1. A prefabricated assembly type non-reinforced concrete shear wall is characterized by comprising: prefabricating a concrete shear wall, a groove-shaped connecting piece and a grouting pipe;
the precast concrete shear wall is formed by pouring polyethylene fiber concrete;
a bolt hole for connecting a groove-shaped connecting piece is reserved at the upper part of the precast concrete shear wall; the bolt hole penetrates through the precast concrete shear wall along the outer direction of the plane of the precast concrete shear wall; the lower part of the precast concrete shear wall is provided with bolt holes which are arranged in the same way as the upper part, and two ends of the wall are respectively provided with an L-shaped grouting hole which is communicated with the side surface and the bottom surface of the wall;
the groove-shaped connecting piece is a groove-shaped steel piece, the upper side and the lower side of a web plate of the groove-shaped connecting piece are respectively provided with a bolt hole for connecting the precast concrete shear wall, and the hole sites correspond to the hole sites of the precast concrete shear wall one by one;
the grout pipe is "L shape", and grout pipe both ends are filling end and shrink end respectively.
2. A prefabricated assembly type non-reinforced concrete shear wall according to claim 1, characterized in that: the distance between the flanges of the groove-shaped connecting piece is equal to the width of the precast concrete shear wall, and the width of the flange is equal to half of the thickness of the precast concrete shear wall.
3. A prefabricated assembly type non-reinforced concrete shear wall according to claim 1, characterized in that: the outer diameter of the middle section of the grouting pipe is equal to the inner diameter of the grouting hole, the outer diameter of the contraction end pipe is gradually reduced so as to be conveniently inserted into the grouting hole, and the outer diameter of the grouting end is gradually enlarged so as to be convenient for grouting.
4. A prefabricated assembly type non-reinforced concrete shear wall according to claim 1, characterized in that: the L-shaped grouting holes are not intersected with the reserved bolt holes and cannot be covered by the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921307582.2U CN210857596U (en) | 2019-08-13 | 2019-08-13 | Prefabricated assembly type non-reinforced concrete shear wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921307582.2U CN210857596U (en) | 2019-08-13 | 2019-08-13 | Prefabricated assembly type non-reinforced concrete shear wall |
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| CN210857596U true CN210857596U (en) | 2020-06-26 |
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| CN201921307582.2U Active CN210857596U (en) | 2019-08-13 | 2019-08-13 | Prefabricated assembly type non-reinforced concrete shear wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424573A (en) * | 2019-08-13 | 2019-11-08 | 华侨大学 | A kind of prefabricated assembled non-reinforced concrete shear wall and its construction method |
| CN114108886A (en) * | 2021-11-29 | 2022-03-01 | 福建华航建设集团有限公司 | Prefabricated stiff concrete shear wallboard |
-
2019
- 2019-08-13 CN CN201921307582.2U patent/CN210857596U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424573A (en) * | 2019-08-13 | 2019-11-08 | 华侨大学 | A kind of prefabricated assembled non-reinforced concrete shear wall and its construction method |
| CN110424573B (en) * | 2019-08-13 | 2023-12-29 | 华侨大学 | Prefabricated assembled type reinforced-free concrete shear wall and construction method thereof |
| CN114108886A (en) * | 2021-11-29 | 2022-03-01 | 福建华航建设集团有限公司 | Prefabricated stiff concrete shear wallboard |
| CN114108886B (en) * | 2021-11-29 | 2023-02-21 | 福建华航建设集团有限公司 | Prefabricated stiff concrete shear wallboard |
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