CN215670299U - Prestress combined shear wall building structure - Google Patents
Prestress combined shear wall building structure Download PDFInfo
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- CN215670299U CN215670299U CN202122027957.3U CN202122027957U CN215670299U CN 215670299 U CN215670299 U CN 215670299U CN 202122027957 U CN202122027957 U CN 202122027957U CN 215670299 U CN215670299 U CN 215670299U
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Abstract
A prestress combined shear wall building structure comprises a concrete foundation and a plurality of sections of steel concrete combined pipes which are sequentially butted on the concrete foundation from bottom to top, wherein flanges of two sections of steel concrete combined pipes which are adjacent from top to bottom are butted and then are connected into a whole through welding or bolts, the left side part and the right side part of each steel concrete combined pipe are correspondingly provided with a through threading channel which is through up and down, each threading channel is internally provided with at least one prestress steel strand, and the upper end and the lower end of each prestress steel strand are provided with a tensioning anchorage. The steel-concrete combined pipe is vertically tensioned into a whole by adopting a plurality of prestressed steel strands after corresponding flange bolts are vertically welded, the construction mode further enhances the upper and lower integrity of the shear wall, and the thicknesses of the two steel plates and the two rectangular steel pipes of the steel-concrete combined pipe can be reduced on the premise of ensuring the safety and reliability of a building, so that the steel consumption is reduced, and the construction cost is reduced.
Description
Technical Field
The utility model belongs to the field of assembly type building construction, and particularly relates to a prestress combined shear wall building structure.
Background
At present, a common fabricated shear wall usually adopts a construction mode of prefabricating a steel concrete combined pipe in a factory, assembling the steel concrete combined pipe on a construction site and pouring concrete. When the assembled shear wall is assembled on site, the vertical connection between the upper and lower adjacent steel concrete combined pipes is usually realized by welding or flange bolt connection. In order to ensure the strength of the wall body and the reliability of vertical connection, the steel consumption in the steel-concrete combined pipe of the structure is large, so that the construction cost is high; in addition, although the upper and lower adjacent steel concrete composite pipes are connected into a whole through welding or flange bolts, the connection strength and the integrity are still not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the prestress combined shear wall building structure which is low in cost, high in vertical connection strength and strong in wall body integrity.
In order to solve the technical problems, the utility model adopts the following technical scheme: a prestressed composite shear wall building structure comprises a concrete foundation and a plurality of sections of steel concrete combined pipes which are sequentially butted on the concrete foundation from bottom to top, wherein flanges of two adjacent sections of steel concrete combined pipes are butted and then are connected into a whole through welding or bolts, the left side part and the right side part of each steel concrete combined pipe are correspondingly provided with a through threading channel from top to bottom, each threading channel is internally provided with at least one prestressed steel strand, the upper end and the lower end of each prestressed steel strand are provided with a tensioning anchorage device, the tensioning anchorage device at the upper end is in extrusion anchorage with the upper end face of the section of steel concrete combined pipe at the uppermost side, and the tensioning anchorage device at the lower end is in extrusion anchorage with the lower end face of the section of steel concrete combined pipe at the lowermost side.
Every section of steel concrete combination pipe all includes two steel sheets that all follow vertical direction and mutual parallel arrangement, interval arrangement around two steel sheets, evenly be equipped with a plurality of drawknot muscle between two steel sheets, between the left side limit of two steel sheets, all fixed being equipped with a rectangle steel pipe between the right side limit, the centre bore of rectangle steel pipe is threading passageway promptly, enclose into upper and lower penetrating rectangle steel cylinder structure between two rectangle steel pipes and two steel sheets, the rectangle steel pipe right flank on left rectangle steel pipe left surface and right side all is fixed and is equipped with the peg, the outer end connection of all pegs and drawknot muscle has the reinforcing bar net piece that is the rectangle tube-shape, clearance has between reinforcing bar net piece and the rectangle tube-shape structure, pour the outsourcing concrete all around the outside of rectangle steel cylinder structure and solidify the reinforcing bar net piece in inside, the equal fixedly connected with rectangular flange of rectangle steel cylinder structure upper end and lower extreme.
A plurality of vertical connecting ribs are pre-embedded in the concrete foundation, the upper portions of the vertical connecting ribs extend into the lowest section of the reinforced concrete composite pipe, a plurality of reinforced connecting reinforcing steel bars are vertically arranged in the rectangular steel cylinder structure of two adjacent sections of the reinforced concrete composite pipe, and reinforced connecting reinforcing steel bars, tie bars and vertical connecting ribs are solidified in the rectangular steel cylinder structure through in-situ concrete pouring.
The left side and the right side of the upper portion of the concrete foundation are respectively provided with an installation reserved step which is located right below the threading channel on the left side and the right side, a steel structure connecting support is pre-embedded in the concrete foundation, the bottom of the steel structure connecting support at the installation reserved step is fixedly connected with a pre-embedded foundation bolt inside the concrete foundation, and the top of the steel structure connecting support is fixedly connected with a rectangular flange at the lower portion of the lowest section of steel concrete composite pipe.
And the prestressed steel strand, the tensioning anchorage and the steel structure connecting bracket are solidified inside the threading channel and the installation reserved step through in-situ concrete pouring.
By adopting the technical scheme, the construction method comprises the following specific steps: installing a first section of steel concrete combined pipe at the lowest side on a concrete foundation, welding and connecting a rectangular flange at the lower end part of the steel concrete combined pipe with a steel structure connecting support pre-buried in the concrete foundation into a whole by bolts, wherein a vertical connecting rib pre-buried in the concrete foundation extends into the first section of steel concrete combined pipe at the lowest side, pouring concrete into the inner cavity of the steel concrete combined pipe at the lowest layer, pouring the vertical connecting rib into the steel concrete assembling pipe, stopping pouring the concrete when the concrete is poured to be 10-20cm away from the upper end of the first section of steel concrete combined pipe at the lowest side, inserting a reinforced connecting steel bar into the concrete for one anchoring length, hoisting a second section of steel concrete combined pipe onto the first section of steel concrete combined pipe and aligning up and down, and extending the upper part of the reinforced connecting steel bar into the second section of steel concrete combined pipe for one anchoring length; welding or bolt connecting the rectangular flanges between the two adjacent sections of the reinforced concrete composite pipes; assembling the steel concrete composite pipes from bottom to top in sequence according to the construction mode until the steel concrete composite pipes are assembled to the designed height, and pouring concrete at the upper ports of the steel concrete composite pipes; then connecting the lower end of the prestressed steel strand with a conical wire leading device, enabling the conical wire leading device to enter a threading channel from the upper port of the rectangular steel pipe of the uppermost section of the steel-concrete combined pipe, pulling the prestressed steel strand out of the lower port of the threading channel by the conical wire leading device, separating the conical wire leading device from the prestressed steel strand, installing an upper tensioning anchorage device at the upper end and the lower end of the prestressed steel strand and performing double-end tensioning to enable the prestressed steel strand to reach a set prestress; and penetrating other multiple prestressed steel strands in place according to the operation mode, and installing an upper tensioning anchorage device to tension the prestressed steel strands. And through the tensioning of the prestressed steel strands, a plurality of sections of assembled steel concrete combined pipes which correspond to each other up and down are further connected in series into a whole. And finally, arranging a conical funnel at the upper port of the threading channel, arranging a template outside the installation reserved step, pouring concrete into the threading channel from the conical funnel, and pouring the steel structure connecting support and the prestressed steel strand at the installation reserved step into the concrete.
Vertical connecting ribs are arranged between the concrete foundation and the interior of the lowest reinforced concrete combined pipe, and the inner cavities of the adjacent reinforced concrete combined pipes are provided with reinforced connecting ribs when concrete is poured, so that the strength of the adjacent joints can be ensured.
The left side and the right side of the steel concrete combined pipe adopt two steel pipes to provide an installation space for the prestressed steel strands, and after the prestressed steel strands are stretched and fixed, pouring is carried out, so that the prestressed steel strands and concrete are solidified into a whole, and the effect of prestressed connection is further improved.
And reserved steps are reserved and installed in the concrete foundation at the position corresponding to the lower port of the threading channel, so that a space for installing a tensioning anchor is provided for the prestressed steel strands, and the operation is convenient. And secondary pouring is carried out after the tensioning anchor is installed, so that the support connection strength is further improved.
In conclusion, the steel-concrete combined pipe is vertically tensioned into a whole by adopting a plurality of prestressed steel strands after corresponding flange bolts are vertically welded, the construction mode further enhances the upper and lower integrity of the shear wall, and the thicknesses of the two steel plates and the two rectangular steel pipes of the steel-concrete combined pipe can be reduced on the premise of ensuring the safety and reliability of the building, so that the steel consumption is reduced, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a cross-sectional structural view of the present invention;
FIG. 3 is a schematic view of the connection structure of the interior of two adjacent steel concrete composite pipes;
fig. 4 is a schematic view of the connection of the prestressed steel strand to the conical wire-guiding device.
Detailed Description
As shown in fig. 1-3, the prestressed composite shear wall building structure of the present invention comprises a concrete foundation 1 and a plurality of sections of steel-concrete composite pipes 20 which are arranged on the concrete foundation 1 and are sequentially butted from bottom to top, wherein flanges of two adjacent sections of steel-concrete composite pipes 20 are butted and then connected into a whole by welding or bolts, the left side portion and the right side portion of all the steel-concrete composite pipes 20 are correspondingly provided with an up-down through threading channel 2, each threading channel 2 is internally provided with at least one prestressed steel strand 3, the upper end and the lower end of each prestressed steel strand 3 are provided with a tension anchor 4, the tension anchor 4 at the upper end is in extrusion anchoring with the upper end face of the uppermost section of steel-concrete composite pipe 20, and the tension anchor 4 at the lower end is in extrusion anchoring with the lower end face of the lowermost section of steel-concrete composite pipe 20. The tensioning anchor 4 is prior art and the specific construction is not described in detail.
Each section of the steel concrete composite pipe 20 comprises two steel plates 5 which are arranged in parallel along the vertical direction, the two steel plates 5 are arranged at intervals in the front and at the back, a plurality of tie bars 6 are uniformly arranged between the two steel plates 5, the left side edges of the two steel plates 5 are arranged, all fixed being equipped with a rectangle steel pipe 7 between the right side limit, the centre bore of rectangle steel pipe 7 is threading passageway 2 promptly, it is penetrating rectangle steel cylinder structure from top to bottom to enclose between two rectangle steel pipes 7 and two steel sheets 5, 7 left surfaces of left rectangle steel pipe and 7 right surfaces of rectangle steel pipe on right side all fixed studs 8 that are equipped with, all studs 8 and the outer end connection of lacing bar 6 have the reinforcing bar net piece 9 that is the rectangle tube-shape, the clearance has between reinforcing bar net piece 9 and the rectangle tube-shape structure, the outsourcing concrete 10 is pour all around to the outside of rectangle steel cylinder structure and is solidified reinforcing bar net piece 9 in inside, the equal fixedly connected with rectangle flange 11 of rectangle steel cylinder structure upper end and lower extreme.
A plurality of vertical connecting ribs 12 are pre-embedded in the concrete foundation 1, the upper portions of the vertical connecting ribs 12 extend into the interior of the lowest section of the reinforced concrete composite pipe 20, a plurality of reinforcing connecting ribs 13 are vertically arranged in the rectangular steel cylinder structure of the two sections of the reinforced concrete composite pipes 20 which are adjacent from top to bottom, and the reinforcing connecting ribs 13, the tie ribs 6 and the vertical connecting ribs 12 are solidified in the interior of the rectangular steel cylinder structure through cast-in-place concrete inside the rectangular steel cylinder structure.
The left side and the right side of the upper portion of the concrete foundation 1 are respectively provided with an installation reserved step 14 located under the threading channel 2 on the left side and the right side, a steel structure connecting support 15 is pre-embedded in the concrete foundation 1, the bottom of the steel structure connecting support 15 at the installation reserved step 14 is fixedly connected with a foundation bolt pre-embedded in the concrete foundation 1, and the top of the steel structure connecting support 15 is fixedly connected with a rectangular flange 11 at the lower portion of the lowest section of the steel-concrete composite pipe 20.
And the prestressed steel strand 3, the tensioning anchor 4 and the steel structure connecting bracket 15 are solidified inside the threading channel 2 and the reserved step 14.
The concrete construction steps of the utility model are as follows: the first section of the steel concrete composite pipe 20 at the lowest side is installed on the concrete foundation 1, the rectangular flange 11 at the lower end part of the steel concrete composite pipe 20 is welded and connected with the steel structure connecting bracket 15 pre-embedded in the concrete foundation 1 into a whole by bolts, the vertical connecting rib 12 pre-embedded in the concrete foundation 1 extends into the section of the steel concrete composite pipe 20 at the lowest side, the concrete is poured into the inner cavity of the steel concrete composite pipe 20 at the lowest layer, the vertical connecting rib 12 is poured in the steel concrete assembling pipe,
when the concrete is poured to a distance of 10-20cm from the upper end of the steel concrete composite pipe 20, stopping pouring the concrete, inserting the reinforced connecting steel bars 13 into the concrete for an anchoring length, hoisting the second section of steel concrete composite pipe 20 onto the first section of steel concrete composite pipe 20, aligning the second section of steel concrete composite pipe up and down, and extending the upper parts of the reinforced connecting steel bars 13 into the second section of steel concrete composite pipe 20 for an anchoring length; then welding or bolt connecting the rectangular flanges 11 between the two adjacent sections of the reinforced concrete composite pipes 20; assembling the steel concrete composite pipes 20 from bottom to top in sequence according to the construction mode until the steel concrete composite pipes 20 are assembled to the designed height, and pouring concrete at the upper ports of the steel concrete composite pipes 20; then, connecting the lower end of the prestressed steel strand 3 with a conical wire leading device, enabling the conical wire leading device to enter the threading channel 2 from the upper port of the rectangular steel pipe 7 of the uppermost section of the steel-concrete composite pipe 20, pulling the prestressed steel strand 3 to penetrate out of the lower port of the threading channel 2 by the conical wire leading device, separating the conical wire leading device from the prestressed steel strand 3, installing an upper tensioning anchorage device 4 at the upper end and the lower end of the prestressed steel strand 3, and performing double-end tensioning to enable the prestressed steel strand 3 to reach a set prestress; and penetrating other prestressed steel strands 3 in place according to the operation mode, and installing an upper tensioning anchorage device 4 to tension the prestressed steel strands 3. And a plurality of sections of assembled steel concrete combined pipes 20 which correspond to each other up and down are further connected in series into a whole by tensioning the prestressed steel strands 3. And finally, arranging a conical funnel at the upper port of the threading channel 2, arranging a template outside the installation reserved step 14, pouring concrete into the threading channel 2 from the conical funnel, and pouring the steel structure connecting bracket 15 and the prestressed steel strand 3 at the installation reserved step 14 into the concrete.
The structure of toper thread guide is as shown in fig. 4, including sharp thick circular cone iron plate 16 in the lower extreme, circular cone iron plate 16 upper end welding has sleeve pipe 17, circular cone iron plate 16 and sleeve pipe 17's central line coincidence, and the equal threaded connection in radial direction has fastening bolt 18 in sleeve pipe 17 left and right sides, and prestressing force steel strand 3 lower extreme stretches into in the sleeve pipe 17, and the clearance between the circle in sleeve pipe 17 and prestressing force steel strand 3 outside is equipped with two arc clamping pieces 19, and fastening bolt 18 is inner compresses tightly prestressing force steel strand 3 through arc clamping piece 19.
Vertical connecting ribs 12 are arranged between the concrete foundation 1 and the interior of the lowest reinforced concrete combined pipe 20, and the cavities in the adjacent reinforced concrete combined pipes 20 are provided with reinforced connecting ribs 13 when concrete is poured, so that the strength of the adjacent joints can be ensured.
Two steel pipes are adopted on the left side and the right side of the steel concrete combined pipe 20 to provide installation space for the prestressed steel strands 3, and after the prestressed steel strands 3 are stretched and fixed, pouring is carried out, so that the prestressed steel strands 3 and concrete are solidified into a whole, and the effect of prestressed connection is further improved.
And a reserved step 14 is reserved and installed in a place, corresponding to the lower port of the threading channel 2, of the concrete foundation 1, so that a space for installing the tensioning anchorage device 4 is provided for the prestressed steel strand 3, and operation is convenient. And after the tensioning anchor 4 is installed, secondary pouring is carried out, so that the support connection strength at the position is further improved.
The rectangular steel pipe 7 of the present invention may be a circular steel pipe. At the T-shaped joint of the shear wall body, the middle part of the reinforced concrete combined pipe is also provided with a through threading channel 2, so that the connection strength of the T-shaped joint is ensured.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a prestressing force combination shear wall building structure, includes concrete foundation and sets up a plurality of sections steel concrete composite pipes that dock in proper order on concrete foundation from bottom to top, and the flange of two sections adjacent steel concrete composite pipes from top to bottom is as an organic whole through welding or bolted connection after the butt joint, its characterized in that: all the left side parts and the right side parts of the steel concrete combined pipes are correspondingly provided with an up-down through threading channel, at least one prestressed steel strand is arranged in each threading channel, the upper ends and the lower ends of the prestressed steel strands are respectively provided with a tensioning anchorage device, the tensioning anchorage device at the upper end is in extrusion anchoring with the upper end face of the uppermost section of the steel concrete combined pipe, and the tensioning anchorage device at the lower end is in extrusion anchoring with the lower end face of the lowermost section of the steel concrete combined pipe.
2. A prestressed composite shear wall building structure according to claim 1, wherein: every section of steel concrete combination pipe all includes two steel sheets that all follow vertical direction and mutual parallel arrangement, interval arrangement around two steel sheets, evenly be equipped with a plurality of drawknot muscle between two steel sheets, between the left side limit of two steel sheets, all fixed being equipped with a rectangle steel pipe between the right side limit, the centre bore of rectangle steel pipe is threading passageway promptly, enclose into upper and lower penetrating rectangle steel cylinder structure between two rectangle steel pipes and two steel sheets, the rectangle steel pipe right flank on left rectangle steel pipe left surface and right side all is fixed and is equipped with the peg, the outer end connection of all pegs and drawknot muscle has the reinforcing bar net piece that is the rectangle tube-shape, clearance has between reinforcing bar net piece and the rectangle tube-shape structure, pour the outsourcing concrete all around the outside of rectangle steel cylinder structure and solidify the reinforcing bar net piece in inside, the equal fixedly connected with rectangular flange of rectangle steel cylinder structure upper end and lower extreme.
3. A prestressed composite shear wall building structure according to claim 2, wherein: a plurality of vertical connecting ribs are pre-embedded in the concrete foundation, the upper portions of the vertical connecting ribs extend into the lowest section of the reinforced concrete composite pipe, a plurality of reinforced connecting reinforcing steel bars are vertically arranged in the rectangular steel cylinder structure of two adjacent sections of the reinforced concrete composite pipe, and reinforced connecting reinforcing steel bars, tie bars and vertical connecting ribs are solidified in the rectangular steel cylinder structure through in-situ concrete pouring.
4. A prestressed composite shear wall building structure according to claim 2 or 3, wherein: the left side and the right side of the upper portion of the concrete foundation are respectively provided with an installation reserved step which is located right below the threading channel on the left side and the right side, a steel structure connecting support is pre-embedded in the concrete foundation, the bottom of the steel structure connecting support at the installation reserved step is fixedly connected with a pre-embedded foundation bolt inside the concrete foundation, and the top of the steel structure connecting support is fixedly connected with a rectangular flange at the lower portion of the lowest section of steel concrete composite pipe.
5. A prestressed composite shear wall building structure according to claim 4, wherein: and the prestressed steel strand, the tensioning anchorage and the steel structure connecting bracket are solidified inside the threading channel and the installation reserved step through in-situ concrete pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027957.3U CN215670299U (en) | 2021-08-26 | 2021-08-26 | Prestress combined shear wall building structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027957.3U CN215670299U (en) | 2021-08-26 | 2021-08-26 | Prestress combined shear wall building structure |
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| CN215670299U true CN215670299U (en) | 2022-01-28 |
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| CN202122027957.3U Active CN215670299U (en) | 2021-08-26 | 2021-08-26 | Prestress combined shear wall building structure |
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- 2021-08-26 CN CN202122027957.3U patent/CN215670299U/en active Active
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