CN211447322U - Novel horizontal seam connection structure of assembled shear force wall - Google Patents
Novel horizontal seam connection structure of assembled shear force wall Download PDFInfo
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- CN211447322U CN211447322U CN201920914645.4U CN201920914645U CN211447322U CN 211447322 U CN211447322 U CN 211447322U CN 201920914645 U CN201920914645 U CN 201920914645U CN 211447322 U CN211447322 U CN 211447322U
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Abstract
The utility model provides a novel horizontal seam connection structure of assembled shear force wall, includes and sets up in the cast-in-place bottom crossbeam of bottom, sets up in the prefabricated wallboard of bottom crossbeam top, sets up the mortar layer between bottom crossbeam and prefabricated wallboard, sets up the edge member at both ends about prefabricated wallboard. The prefabricated wall plate is internally provided with double layers of prefabricated wall plate transverse steel bars and prefabricated wall plate vertical steel bars which are distributed in a bidirectional mode, and a single-row corrugated pipe is embedded in a designed position at the bottom of the prefabricated wall plate in advance; a single row of vertical dowel shear keys are pre-embedded in the bottom cross beam; enough gaps are reserved between the single-row corrugated pipes and the double-layer bidirectional distribution reinforcing steel bars to ensure that the poured concrete has certain thickness. The utility model discloses wallboard installation positioning accuracy and construction speed when not only can improve assembly structure operation have avoided appearing the whole gliding destruction phenomenon of upper portion wall body when the wall body that leads to because of pure mortar connection horizontal joint receives to cut moreover, and the pre-buried joint bar of bottom crossbeam mainly plays the level effect of shearing.
Description
Technical Field
The utility model relates to a building structure, especially a positioning accuracy is high, and construction speed is fast, the novel assembled shear force wall horizontal joint structure that shear resistance is strong.
Background
Horizontal joints of prefabricated shear walls generally adopt a reinforcing steel sleeve or pure mortar connection mode, but the connection methods have the following problems: 1. in the construction process, because the grouting hole is narrow and difficult to perform grouting, a worker can paint cement slurry on the upper grout outlet of the sleeve to manufacture the false appearance of the flow at the upper grout outlet; 2. for an assembly type wall body connected by pure mortar, the upper wall body is difficult to accurately position an assembly position due to the assembly type technical problem, so that the prefabricated wall plate deviates from a set position and the stress performance is influenced; 3. under the action of shearing force, the assembled wall body connected by the pure mortar horizontally slides due to lack of horizontal shear-resistant steel bars, so that the energy consumption performance in the anti-seismic process is not facilitated; in a word, in order to facilitate the correction of vertical joint bars by workers in construction and avoid the complex construction of the conventional steel bar sleeve connecting steel bars with more quantity, a new connecting structure must be created so as to achieve the purposes of optimizing the construction speed, the construction cost and the stress performance.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a positioning accuracy is high, and construction speed is fast, the novel assembled shear force wall horizontal joint structure that the ability of shearing is strong.
Realize the utility model discloses a novel assembled shear force wall horizontal joint connection structure of purpose, including setting up in the cast-in-place bottom crossbeam of bottom, set up in the prefabricated wallboard of bottom crossbeam top, set up the mortar layer between bottom crossbeam and prefabricated wallboard, set up the edge member at both ends about prefabricated wallboard. The prefabricated wall plate is internally provided with double layers of prefabricated wall plate transverse steel bars and prefabricated wall plate vertical steel bars which are distributed in a bidirectional mode, and a single-row corrugated pipe is embedded in a designed position at the bottom of the prefabricated wall plate in advance; a single row of vertical dowel shear keys are pre-embedded in the bottom cross beam; enough gaps are reserved between the single-row corrugated pipes and the double-layer bidirectional distribution reinforcing steel bars to ensure that the poured concrete has certain thickness.
The prefabricated wallboard vertical reinforcement does not pass the mortar layer, the prefabricated wallboard bottom is equipped with the single-row bellows that matches with single-row vertical dowel shear key and has the cavity of certain size, earlier with single-row bellows full concrete before prefabricated wallboard is connected with the bottom crossbeam, then directly sit upper portion prefabricated wallboard on the bottom crossbeam according to the design position, the edge component is built after prefabricated wallboard assembly to the assigned position, the pre-buried vertical dowel of bottom crossbeam is because of the shear strength that lacks the shear reinforcement and lead to is not enough to avoid between middle part prefabricated wallboard and the bottom crossbeam because of pure mortar is connected.
The edge member steel bar connection form plays the role of lapping the prefabricated wall panel steel bars and the bottom cross beam steel bars, so that the prefabricated wall panel, the bottom cross beam and the edge member form a whole.
With the prefabricated wallboard structure of edge member connection, built-in double-deck two-way distribution reinforcing bar during the preparation, the reinforcing bar diameter is 6 mm.
The single corrugated pipe and the distributed steel bars in the prefabricated wallboard are not connected and are mutually independent, so that the wallboard is convenient to manufacture, and the manufacturing speed is accelerated.
The single-row vertical dowel shear keys are relatively thick in diameter, and steel bars with the diameter of 20mm can be taken easily, so that the requirement on the shear resistance of the horizontal joint of the middle prefabricated wallboard is met.
Prefabricated wallboard leaves prefabricated wallboard horizontal reinforcing bar, and the bottom crossbeam leaves vertical overlap joint reinforcing bar, above two kinds of overlap joint reinforcing bars do not have direct connection, nevertheless all with the overlap joint of edge member reinforcing bar at last.
The embedded joint bar of the bottom cross beam is bound with the steel bar of the bottom cross beam when the bottom cross beam is manufactured, and the diameter is not easy to be too small, so that the enough shear strength is ensured.
The bottom end of the prefabricated wallboard is provided with a corrugated pipe with the size matched with the joint bars, a cavity with enough thickness is reserved between the corrugated pipe and the joint bars, and the filled mortar can reach enough strength.
And a 20mm mortar layer is arranged between the prefabricated wall plate and the bottom cross beam.
The utility model discloses a bellows and the interior vertical reinforcement of wallboard are unlikely to be put through in the prefabricated wallboard in the horizontally connect form, only pour in the wallboard concrete can, and with the vertical joint bar phase-match of bottom crossbeam, wallboard installation positioning accuracy and construction speed when not only can improving the assembly type structure operation have avoided appearing the whole gliding destruction phenomenon of upper portion wall body when the wall body that leads to because of pure mortar connection horizontal joint receives to cut moreover, the pre-buried joint bar muscle of bottom crossbeam mainly plays the level effect of shearing.
Drawings
FIG. 1 is a detailed schematic diagram of the horizontal joint connection structure of the assembled shear wall of the present invention
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1
FIG. 3 is a detailed cross-sectional view of the horizontal seam connection of section B-B of FIG. 1
FIG. 4 is the interior structure schematic diagram of the middle prefabricated wall panel
FIG. 5 is the schematic diagram of the internal structure of the foundation beam of the middle shear wall
Detailed Description
As shown in fig. 1 to 5, the utility model discloses a novel assembled shear force wall horizontal joint connection structure, including setting up in the cast-in-place bottom crossbeam 3 of bottom, set up in prefabricated wallboard 2 of bottom crossbeam 3 top, set up mortar layer 4 between bottom crossbeam 3 and prefabricated wallboard 2, set up in prefabricated wallboard 2 about the edge member 1 at both ends. The prefabricated wall plate 2 is internally provided with a double-layer bidirectional distributed prefabricated wall plate transverse reinforcing steel bar 7 and a prefabricated wall plate vertical reinforcing steel bar 8, and a single-row corrugated pipe 5 is embedded in the designed position at the bottom of the prefabricated wall plate 2 in advance; the bottom cross beam 3 is pre-embedded with a single row of vertical dowel shear keys 6; enough gaps are left between the single-row corrugated pipe 5 and the double-layer bidirectional distribution reinforcing steel bars 7 and 8 to ensure that the poured concrete has certain thickness.
Prefabricated wallboard vertical reinforcement 8 does not pass mortar layer 4, 2 bottoms of prefabricated wallboard are equipped with single row vertical inserted bar shear key 6 assorted single bellows 5 and have the cavity of certain size, earlier with single row bellows 5 full concrete before prefabricated wallboard 2 is connected with bottom beam 3, then directly sit on bottom beam 3 with upper portion prefabricated wallboard 2 according to design position, edge component 1 is built to the assigned position after prefabricated wallboard 2 assembles, the pre-buried vertical inserted bar of bottom beam 3 is because of the shear strength that pure mortar connection lacks the shear reinforcement and leads to between prefabricated wallboard 2 in middle part and the bottom beam 3 is not enough.
The connecting form of the edge member steel bars 1 plays a role in overlapping the prefabricated wall plate steel bars 2 and the bottom cross beam steel bars 3, so that the prefabricated wall plate 2, the bottom cross beam 3 and the edge member 1 form a whole.
2 structures of prefabricated wallboard of being connected with edge member 1, built-in double-deck two-way distribution reinforcing bar during the preparation, the reinforcing bar diameter is 6 mm.
The single-row corrugated pipes 5 and the distribution reinforcing steel bars in the prefabricated wall board 2 are independent of each other, the single-row corrugated pipes 5 are not connected with the distribution reinforcing steel bars, the wall board is convenient to manufacture, and the manufacturing speed is accelerated.
The single-row vertical dowel shear keys 6 are relatively thick in diameter, and steel bars with the diameter of 20mm can be taken easily, so that the requirement on the shear resistance of the horizontal joint of the middle prefabricated wallboard is met.
Prefabricated wallboard leaves prefabricated wallboard horizontal reinforcing bar 7, and the bottom crossbeam leaves overlap joint reinforcing bar 9 with the vertical reinforcing bar welded of edge component, and above two kinds of overlap joint reinforcing bars do not have direct connection, but all with 1 steel bar overlap joint of edge component finally.
The embedded dowel bars 6 of the bottom cross beam are bound with the reinforcing steel bars 10 of the bottom cross beam when the bottom cross beam is manufactured, and the diameter is not easy to be too small, so that the sufficient shear strength is ensured.
The bottom end of the prefabricated wallboard is provided with a corrugated pipe with the size matched with the joint bars, a cavity with enough thickness is reserved between the corrugated pipe and the joint bars, and the filled mortar can reach enough strength.
And a 20mm mortar layer is arranged between the prefabricated wall plate and the bottom cross beam.
The first embodiment is as follows:
a horizontal joint connection structure for connecting an upper prefabricated wallboard and a base bottom cross beam by mortar with the thickness of 20mm comprises an edge member 1, an upper prefabricated wallboard 2, a base bottom cross beam 3 and a mortar layer 4, wherein a single-row corrugated pipe 5 with the diameter of 30 mm-40 mm is pre-embedded at the bottom end of the wallboard during the manufacturing of the prefabricated wallboard, a single-row inserted bar 6 with the diameter of 20mm is poured at a designed position during the manufacturing of the base bottom cross beam, the mortar layer 4 with the diameter of 10 mm-20 mm is firstly built on a cast-in-place bottom cross beam during the assembling, concrete is filled in a cavity of the corrugated pipe, then the wallboard is assembled to align the corrugated pipe 5 and the inserted bar 6 in place, finally, a lap joint reinforcing bar 9 and edge member reinforcing bars, the edge member reinforcing bars and prefabricated wallboard transverse reinforcing bars 7 and 8 are reserved on the lap.
Wherein, overlap joint reinforcing bar 9 welding is reserved with basic bottom crossbeam to edge component vertical reinforcement, and edge component horizontal reinforcing bar and prefabricated wallboard horizontal reinforcing bar 7, 8 welding, prefabricated wallboard vertical reinforcement do not pass the mortar layer, and pre-buried dowel bar passes the mortar layer and gets into in the bellows of filling up the concrete in the bottom crossbeam during the assembly.
A cavity with enough thickness is reserved between the pre-corrugated pipe 5 and the joint bars 6 at the bottom of the prefabricated wall board, so that the joint bars of the sleeve and grouting are more convenient and easier, and the concrete has enough strength.
The diameter of the embedded joint bar of the bottom cross beam is not easy to be smaller than 15mm, and is beneficial to about 20mm, so that the embedded joint bar meets the shearing resistance requirement. The design quantity of the single-row inserted bars 6 is determined according to the horizontal section height of the wallboard, and the applicable quantity of the commonly used 1800mm wall body width in the engineering is as follows: about 6; suitable number of 3600mm wall width: about 12; 5400mm wall width applicable quantity: about 18.
The diameter of the vertical steel bar of the edge member is not easy to be less than 10mm, so that the edge member has certain bending resistance and shearing resistance.
The installation sequence of the shear wall horizontal joint structure connected by the edge member dowel bars of the embodiment is as follows: firstly, during construction, binding the inserted bars 6, the reserved overlap joint steel bars 9 of the bottom cross beam of the foundation and the bottom cross beam reinforcing bars 10 according to the design positions, wherein the inserted bars 6 are arranged in a single row, and as shown in fig. 4, maintaining until the bottom cross beam meets the strength requirement; secondly, when the wall plate is prefabricated, the corrugated pipe 5 is fixedly poured into concrete according to the designed position, and as shown in fig. 3, the concrete is maintained according to the standard until the bottom cross beam meets the strength requirement; during assembly, concrete is filled in the corrugated pipe, mortar with the thickness of 20mm is smeared on the bottom cross beam 3, and the prefabricated wall plate 2 is assembled on the bottom cross beam 3 according to a set position, so that the dowel bars are inserted into the concrete in the corrugated pipe; welding the vertical steel bars of the bound edge members with reserved lap joint steel bars 9 of a beam at the bottom of the foundation, and welding the transverse steel bars of the edge members with transverse steel bars 7 and 8 of the prefabricated wall board; fifthly, pouring concrete of the edge member 1, curing to certain strength, and removing the template, so that the shear wall connected by the edge member dowel bars is used for completing installation.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (9)
1. A novel assembly type shear wall horizontal joint connecting structure is characterized by comprising a cast-in-place bottom cross beam arranged at the bottom, a prefabricated wallboard arranged above the bottom cross beam, a mortar layer arranged between the bottom cross beam and the prefabricated wallboard, and edge components arranged at the left end and the right end of the prefabricated wallboard; the prefabricated wall plate is internally provided with double layers of prefabricated wall plate transverse steel bars and prefabricated wall plate vertical steel bars which are distributed in a bidirectional mode, and a single-row corrugated pipe is embedded in a designed position at the bottom of the prefabricated wall plate in advance; a single row of vertical dowel shear keys are pre-embedded in the bottom cross beam; enough gaps are left between the single-row corrugated pipes and the double-layer bidirectional distribution reinforcing steel bars.
2. The novel horizontal joint connecting structure for the fabricated shear wall as claimed in claim 1, wherein the vertical steel bars of the prefabricated wall panel do not pass through the mortar layer, and the bottom end of the prefabricated wall panel is provided with a single-row corrugated pipe matched with the single-row vertical steel bar shear keys and is provided with a cavity with a certain size.
3. The novel horizontal joint connecting structure of the fabricated shear wall according to claim 1, wherein the prefabricated wall panel structure connected with the edge member is manufactured by internally arranging double-layer bidirectional distributed steel bars, and the diameter of each steel bar is 6 mm.
4. The novel horizontal joint connecting structure for the assembled shear wall according to claim 1, wherein the single-row corrugated pipes and the distribution steel bars in the prefabricated wall panel are independent and independent.
5. The novel horizontal joint connecting structure for the fabricated shear wall as claimed in claim 1, wherein the single row of vertical shear connectors are steel bars with a diameter of 20 mm.
6. The novel horizontal joint connecting structure for the assembled shear wall according to claim 1, wherein the prefabricated wall panel is provided with prefabricated wall panel transverse steel bars, the bottom cross beam is provided with longitudinal lap steel bars, and the two lap steel bars are not directly connected but are finally overlapped with the edge member steel bars.
7. The novel horizontal joint connecting structure of the assembled shear wall as claimed in claim 1, wherein the embedded dowel bars of the bottom cross beam are bound with the steel bars of the bottom cross beam when the bottom cross beam is manufactured.
8. The novel assembly type shear wall horizontal joint connecting structure is characterized in that the bottom end of the prefabricated wall board is provided with a corrugated pipe with the size matched with the joint bars, and a cavity with enough thickness is reserved between the corrugated pipe and the joint bars.
9. The novel horizontal joint connecting structure for the fabricated shear wall according to claim 1, wherein a 20mm mortar layer is arranged between the prefabricated wall panels and the bottom cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914645.4U CN211447322U (en) | 2019-06-18 | 2019-06-18 | Novel horizontal seam connection structure of assembled shear force wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914645.4U CN211447322U (en) | 2019-06-18 | 2019-06-18 | Novel horizontal seam connection structure of assembled shear force wall |
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| CN211447322U true CN211447322U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920914645.4U Expired - Fee Related CN211447322U (en) | 2019-06-18 | 2019-06-18 | Novel horizontal seam connection structure of assembled shear force wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984359A (en) * | 2019-07-25 | 2020-04-10 | 河北工程大学 | Low-rise assembled building structure |
| CN112112261A (en) * | 2020-09-21 | 2020-12-22 | 福建创润建设有限公司 | Fabricated building and construction method thereof |
-
2019
- 2019-06-18 CN CN201920914645.4U patent/CN211447322U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984359A (en) * | 2019-07-25 | 2020-04-10 | 河北工程大学 | Low-rise assembled building structure |
| CN112112261A (en) * | 2020-09-21 | 2020-12-22 | 福建创润建设有限公司 | Fabricated building and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20210618 |