CN105064529A - Prefabricated and assembled large-board shear wall structure with concealed bracings - Google Patents
Prefabricated and assembled large-board shear wall structure with concealed bracings Download PDFInfo
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- CN105064529A CN105064529A CN201510551443.4A CN201510551443A CN105064529A CN 105064529 A CN105064529 A CN 105064529A CN 201510551443 A CN201510551443 A CN 201510551443A CN 105064529 A CN105064529 A CN 105064529A
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Abstract
A prefabricated and assembled large-board shear wall structure with concealed bracings comprises upper large prefabricated reinforced concrete boards with concealed bracings, lower large prefabricated reinforced concrete boards with concealed bracings and cast-in-place concrete. Each large prefabricated reinforced concrete board with concealed bracings comprises a prefabricated wall board, four corner gaps, preserved grooves, distributed steel bars, lattice steel bars, longitudinal bars and stirrups of embedded columns, square steel pipes, X-shaped diagonal steel bracings and annular reinforcing bars. The embedded column square steel pipes and the X-shaped diagonal steel bracings of the large prefabricated reinforced concrete boards with concealed bracings are welded through L-shape angle steel to form a steel framework and are jointly stressed with a steel bar net and the concrete. Reinforcing ribs are arranged at the tops of the square steel pipes and extend into the upper-layer square steel pipes for certain distances. The four corner gaps are provided with gap steel bars, and the annular reinforcing bars are arranged in the middle groove-shaped gap areas. The four corner gaps are indirectly in lap joint with the gap steel bars through connecting steel bars, and the annular reinforcing bars are inserted into the middle groove-shaped gap areas through connecting steel bars in an indirect lap joint mode. The prefabricated and assembled large-board shear wall structure with the concealed bracings is more reliable in vertical connection and better in integrality and has multiple obvious anti-seismic defense lines, and the bearing capacity is remarkably improved.
Description
Technical field
The invention belongs to prefabricated building structure field, relate to pre-fabricated building structure, relate generally to prefabricated large plate shear wall structure system, the particularly large plate shear wall structure of one prefabricated assembled band concealed bracings and up and down connected node building method.
Background technology
Prefabricated costruction is assembled by precast unit or parts, is formed by connecting, adapt to the demand of industrialization of construction industry and housing industrialization development, have speed of application fast, make the plurality of advantages such as the high and environmental protection of precision is sustainable, this structural system is very extensive in European and American areas application; Domestic research mainly concentrates on pre-fabricated one field at present, and rare to the anti-seismic performance research of prefabricated assembled shear wall structure; Ensure that the key of prefabricated costruction anti-seismic performance is mainly reflected in the aspects such as the design of the construction measures such as node connection; The connected mode of the prefabricated assembled shear wall structure of tradition mainly contains: straight screw sleeve connection (containing shear connector), local unbonded reinforcement sleeve connection, angle steel solder design, reinforcing bar are connected with steel pipe bolt and prestressing force connection etc.; Existing experimental study shows, under these connected modes, the anti-seismic performance of assembling body of wall is all relatively better, but eventually or indirectly connects, and integral cast-in-situ formula shear wall structure compares, and still shows node and connects the shortcomings such as weak.
Traditional prefabricated assembled shear wall is along with the increase of structure height, and its thickness also can increase, and causes this kind of prefabricated assembled shear wall deadweight to increase, is unfavorable for transport and lifting, also comparatively unfavorable to the ductility improved under the supporting capacity of structure and geological process; Further, traditional prefabricated assembled shear wall structure does not establish sleeper, side column, and anti-vibration defense lines is single.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the large plate shear wall structure of a kind of prefabricated assembled band concealed bracings; This kind of large plate shear wall is by the large plate of upper and lower prefabricated band concealed bracings steel concrete, and assembled rear cast-in-place necessary concrete forms at the scene; This kind of large plate of prefabricated band concealed bracings steel concrete indulges muscle by horizontal distribution reinforcing bar in prefabricated reinforced concrete wall panel, corner breach, reserved notch, wallboard, vertical distribution reinforcement, lattice reinforcing bar, sleeper, sleeper stirrup, sleeper square steel pipe, X-shaped steel diagonal brace, cyclic reinforcing rib form; This kind of large plate of prefabricated band concealed bracings steel concrete is containing sleeper, and sleeper core is containing square steel pipe, and in square steel pipe and wallboard, X-shaped steel diagonal brace is welded to connect, and square steel pipe and X-shaped steel diagonal brace form steel frame, and steel mesh reinforcement and concrete jointly stressed; Obviously, this kind of steel frame can not only improve the supporting capacity of prefabricated assembled large plate shear wall, the thickness of thinning this prefabricated units, thus can be applied in high-level structure and effectively alleviate dead load, meanwhile, this kind of steel frame be arranged so that originally only have the prefabricated assembled large plate shear wall of single anti-vibration defense lines to have multiple seismic-proof; In addition, the setting of corner breach and future insufficiency and the setting of cyclic reinforcing rib effectively can ensure the globality of upper and lower prefabricated assembled large plate shear wall connected node, ensure reliably to connect; Visible, this kind of prefabricated assembled band concealed bracings large plate shear wall supporting capacity is large and node connects reliable, can reach desirable ductile fracture under geological process.
The present invention is achieved through the following technical solutions:
The large plate shear wall of a kind of prefabricated assembled band concealed bracings, comprises the large plate of steel concrete arranging band concealed bracings, and cast-in-situ concrete;
The large plate of steel concrete of described band concealed bracings, the X-shaped steel plate diagonal brace of the built-in band shearing resistance nail of large plate;
The large plate of steel concrete of described band concealed bracings, sleeper is established on large plate both sides, and sleeper core establishes square steel pipe;
The large plate of steel concrete of described band concealed bracings, corner breach established by large plate, reserved horizontal distribution reinforcing bar and vertical distribution reinforcement;
The top of described square steel pipe is connected to stiffening rib at internal welding, and stiffening rib stretches out the prefabricated large board wall body of lower floor and stretches into the prefabricated large board wall body certain distance in upper strata;
The large plate of steel concrete of described band concealed bracings, at upper and lower two ends, central region reserves grooved breach, arranges lattice reinforcing bar in grooved breach;
Described lattice reinforcing bar plays the effect of drawknot grooved breach both sides dry wall sheet;
The large board wall body of described prefabricated assembled band concealed bracings is overlapped by breach reinforcing bar and connecting reinforcement indirectly in indentation, there, and middle part grooved gap regions is then overlapped indirectly by connecting reinforcement and pre-buried cyclic reinforcing rib;
The large plate of steel concrete of described band concealed bracings, in its X-shaped steel diagonal brace and sleeper, square steel pipe adopts the welding of L angle steel;
Compared with cast-in-situ steel reinforced concrete shear wall structure, the present invention's major part component is all prefabricated in the factory productions, the more a small amount of necessary concrete of assembled after-pouring at the scene, and plant produced efficiency is high, and can ensure making precision and quality, environmental protection; With existing prefabricated costruction especially compared with existing prefabricated assembled large panel shear wall structure, the large plate shear wall structure of prefabricated assembled band concealed bracings of the present invention, its upper and lower vertical node connects more reliable, globality is better, and the formation of steel frame makes supporting capacity significantly improve, effectively be thinned the thickness of shear wall, there is again obvious multiple seismic-proof simultaneously, and can show good under geological process.
Accompanying drawing explanation
Fig. 1 is the necessary reinforcing bar of upper strata of the present invention prefabricated panel location colligation and axle side schematic diagram after upper and lower steel-pipe welding.
Fig. 2 is the positive elevational schematic view of a slice of the present invention prefabricated assembled band concealed bracings large plate Shear Walls limb.
Fig. 3 is 1-1 and the 2-2 generalized section of Fig. 2.
Fig. 4 is lower node connection diagram on grooved region in the middle part of the large plate shear wall of the present invention's prefabricated assembled band concealed bracings.
Fig. 5 is the axle side schematic diagram of a slice of the present invention prefabricated assembled band concealed bracings reinforced concrete wall panel.
Fig. 6 be steel pipe of the present invention and X-shaped steel diagonal brace node be welded to connect schematic diagram.
Fig. 7 is the prefabricated assembled large plate shear wall axle side schematic diagram that a slice of the present invention has built connected node.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
The large plate shear wall of a kind of prefabricated assembled band concealed bracings, comprises the large plate of steel concrete arranging band concealed bracings, and cast-in-situ concrete 17;
The large plate of steel concrete of described band concealed bracings, the X-shaped steel diagonal brace 9 of 10 steel plates is followed closely in the built-in band shearing resistance of large plate;
The large plate of steel concrete of described band concealed bracings, sleeper is established on large plate both sides, and sleeper core establishes square steel pipe 13;
The large plate of steel concrete of described band concealed bracings, corner breach 16 established by large plate, reserved horizontal distribution reinforcing bar 2 and vertical distribution reinforcement 1;
The top of described square steel pipe 13 is connected to stiffening rib 14 at internal welding, and stiffening rib 14 stretches out the prefabricated large board wall body of lower floor and stretches into the prefabricated large board wall body certain distance in upper strata;
The large plate of steel concrete of described band concealed bracings, at upper and lower two ends, central region reserves grooved breach 5, arranges lattice reinforcing bar 6,7 in grooved breach 5;
Described lattice reinforcing bar 6,7 plays the effect of drawknot grooved breach 5 both sides dry wall sheet 4;
The large board wall body of described prefabricated assembled band concealed bracings is overlapped by breach reinforcing bar 1 and connecting reinforcement 3 indirectly at breach 16 place, and grooved breach 5 region, middle part is then overlapped indirectly by connecting reinforcement 3 and pre-buried cyclic reinforcing rib 8;
The large plate of steel concrete of described band concealed bracings, in its X-shaped steel diagonal brace 9 and sleeper, square steel pipe 13 adopts L angle steel 15 to weld;
The first step: the assembled large panel of the band concealed bracings that is prefabricated in the factory, large plate corner band jagged 16, and reserve grooved breach 5 at the middle part at upper and lower two ends, lattice reinforcing bar 6 is set in grooved breach 5, 7, first prefabricatedly follow closely the X-shaped steel diagonal brace 9 of 10 steel plates with shearing resistance and be welded with the square steel pipe 13 of stiffening rib 14, then colligation horizontal reinforcement 2 and vertical reinforcement 1, lattice reinforcing bar 6, 7 and sleeper indulges muscle 11 and sleeper stirrup 12 makes reinforcing cage, weld the node of X-shaped steel diagonal brace 9 and square steel pipe 13 with L angle steel after inserting X-shaped steel diagonal brace 9 and square steel pipe 13 again, square steel pipe 13 inherent prefabricated time not concreting, formwork after reinforcing bar and steel frame make, reserved necessary breach, concreting forms prefabricated assembled band concealed bracings reinforced concrete wall panel.
Second step: will be prefabricated in the factory and the assembled large panel reaching the prefabricated band concealed bracings of design strength transport to in-site installation location and temporary fixed after, bottom stiffening rib 14 is inserted in the square steel pipe 13 at breach 16 place, corner, left and right, and weld up and down, the connecting reinforcement 3 at breach 16 place, corner, left and right and the breach reinforcing bar 1 at breach 16 place, corner, left and right overlap indirectly, and the connecting reinforcement 3 in grooved breach 5 region, middle part inserts in pre-buried cyclic reinforcing rib 8.
3rd step: at breach 16 place, corner, left and right formwork, then microdilatancy type self-flowing dense concrete 17 is built in corner breach 16 and square steel pipe 13 to the left and right, this kind of concrete can improve new-old concrete interface switching performance, treat that cast-in-situ concrete 17 maintenance is complete, complete the making of the large plate shear-wall element of lower floor's prefabricated assembled band concealed bracings.
4th step: by prefabricated assembled for upper strata band concealed bracings large plate shear wall hoisted in position, corner 16, upper and lower layer prefabricated assembled band concealed bracings large plate shear wall left and right breach reinforcing bar 1 and connecting reinforcement 3 overlap indirectly, and middle part grooved breach 5 joint area reinforcing bar 3 overlaps indirectly through pre-buried cyclic reinforcing rib 8.
5th step: the bottom stiffening rib 14 at breach 16 place, corner, left and right is inserted in the square steel pipe 13 at breach 16 place, corner, left and right, and welded the node of upper and lower steel pipe 13.
6th step: at breach 16 place, corner, left and right formwork, then microdilatancy type self-flowing dense concrete is built in corner breach 16 and square steel pipe 13 to the left and right, treat that cast-in-situ concrete 17 maintenance is complete, complete the making of a large plate shear-wall element of typical case's prefabricated assembled band concealed bracings.
Claims (9)
1. the large plate shear wall structure of prefabricated assembled band concealed bracings, comprises the large plate of upper and lower prefabricated band concealed bracings steel concrete and cast-in-situ concrete; The large plate of described band concealed bracings steel concrete comprises prefabricated panel, corner breach, reserved notch, distribution reinforcement, lattice reinforcing bar, sleeper indulge muscle and stirrup, square steel pipe, X-shaped steel diagonal brace, cyclic reinforcing rib; Described band concealed bracings steel concrete large plate sleeper square steel pipe and X-shaped steel diagonal brace are welded into steel frame by L angle steel, and steel mesh reinforcement and concrete jointly stressed; Described square steel pipe top tape stiffening rib and stretch into upper strata square steel pipe certain distance; The jagged reinforcing bar of described corner breach, middle part grooved gap regions has cyclic reinforcing rib; Described corner breach is overlapped indirectly by connecting reinforcement and breach reinforcing bar, and middle part grooved gap regions is then inserted cyclic reinforcing rib by connecting reinforcement and indirectly overlapped.
2. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, is characterized in that prefabricated assembled band concealed bracings steel concrete is prefabricated in the factory production, and band corner breach, breach is reserved with breach reinforcing bar.
3. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, is just arranged on the X-shaped steel plate diagonal brace of band shearing resistance nail in wallboard when it is characterized in that the large plate of prefabricated reinforced concrete.
4. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, it is characterized in that the large strip of prefabricated reinforced concrete has sleeper, and sleeper core is square steel pipe, square steel pipe inserts when prefabricated large plate, and not concreting in square steel pipe time prefabricated.
5. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, is characterized in that the X-shaped steel diagonal brace in the large plate of prefabricated reinforced concrete and the square steel pipe in sleeper form steel frame by the welding of L angle steel.
6. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, it is characterized in that the square steel pipe inside top in the large plate of prefabricated reinforced concrete is welded with stiffening rib, and stiffening rib inserts bottom the square steel pipe of upper strata after stretching out square steel pipe top certain distance.
7. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, it is characterized in that, upper and lower side central region is reserved with grooved breach, and breach both sides prefabricated panel is by lattice reinforcing bar drawknot, and prefabricated panel is embedded with the cyclic reinforcing rib that part leaks outside in grooved breach.
8. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, it is characterized in that, corner gap regions is overlapped indirectly by connecting reinforcement and breach reinforcing bar, and middle part grooved gap regions is then inserted in cyclic reinforcing rib by connecting reinforcement and indirectly overlapped.
9. the large plate shear wall structure of prefabricated assembled band concealed bracings according to claim 1, it is characterized in that, the steel concrete large board wall body of corner breach is prefabricated, corner gap regions and middle part grooved gap regions cast-in-place, X-shaped steel diagonal brace and square steel pipe are all interior when prefabricated to be buried, and forms the large plate shear wall of prefabricated assembled band concealed bracings overall after each parts joint connection in site after support mold pouring necessary microdilatancy type self-flowing dense concrete.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544801A (en) * | 2016-01-28 | 2016-05-04 | 湖南大学 | Bolted connection technique for prefabricated large plate shear wall provided with concealed bracing and construction method |
| CN105569222A (en) * | 2016-01-11 | 2016-05-11 | 湖南大学 | Vertical connection technology for precast assembled large panel shear walls with concealed supports |
| CN105735532A (en) * | 2016-04-17 | 2016-07-06 | 湖南大学 | Method for assembling prefabricated uperimposed slab shear wall structure |
| CN106522408A (en) * | 2016-11-25 | 2017-03-22 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembly type cast-in-place concrete frame thermal-insulating wall component |
| CN107060211A (en) * | 2017-05-08 | 2017-08-18 | 姚攀峰 | A kind of reinforced concrete sandwich formula tubing string, superposed type core pipe post and its construction method |
| CN107268844A (en) * | 2017-05-16 | 2017-10-20 | 广东省建筑科学研究院集团股份有限公司 | A kind of assembled wall and its installation constitution and installation method |
| CN107366353A (en) * | 2017-07-25 | 2017-11-21 | 姚伟华 | A kind of assembled steel reinforced concrete frame column with variable cross-sections and its construction method |
| CN108222291A (en) * | 2018-02-07 | 2018-06-29 | 西安建筑科技大学 | A kind of tension anchoring method connecting-type assembled wall-harden structure and installation method |
| CN109680841A (en) * | 2019-02-15 | 2019-04-26 | 姚攀峰 | Hybrid prefabricated multi-cavity reinforced concrete wall, underground space structure system and construction method |
| WO2019206193A1 (en) * | 2018-04-25 | 2019-10-31 | Li Cangzhu | Prefabricated wall panel, connection structure thereof and construction method therefor |
| CN114876262A (en) * | 2021-12-08 | 2022-08-09 | 长沙理工大学 | Superimposed shear wall and building |
| CN115126120A (en) * | 2022-07-20 | 2022-09-30 | 长沙理工大学 | Assembled double-layer X-shaped steel plate supporting superposed shear wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105569222A (en) * | 2016-01-11 | 2016-05-11 | 湖南大学 | Vertical connection technology for precast assembled large panel shear walls with concealed supports |
| CN105544801A (en) * | 2016-01-28 | 2016-05-04 | 湖南大学 | Bolted connection technique for prefabricated large plate shear wall provided with concealed bracing and construction method |
| CN105735532A (en) * | 2016-04-17 | 2016-07-06 | 湖南大学 | Method for assembling prefabricated uperimposed slab shear wall structure |
| CN106522408A (en) * | 2016-11-25 | 2017-03-22 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembly type cast-in-place concrete frame thermal-insulating wall component |
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| CN107268844A (en) * | 2017-05-16 | 2017-10-20 | 广东省建筑科学研究院集团股份有限公司 | A kind of assembled wall and its installation constitution and installation method |
| CN107366353A (en) * | 2017-07-25 | 2017-11-21 | 姚伟华 | A kind of assembled steel reinforced concrete frame column with variable cross-sections and its construction method |
| CN108222291A (en) * | 2018-02-07 | 2018-06-29 | 西安建筑科技大学 | A kind of tension anchoring method connecting-type assembled wall-harden structure and installation method |
| WO2019206193A1 (en) * | 2018-04-25 | 2019-10-31 | Li Cangzhu | Prefabricated wall panel, connection structure thereof and construction method therefor |
| CN109680841A (en) * | 2019-02-15 | 2019-04-26 | 姚攀峰 | Hybrid prefabricated multi-cavity reinforced concrete wall, underground space structure system and construction method |
| CN114876262A (en) * | 2021-12-08 | 2022-08-09 | 长沙理工大学 | Superimposed shear wall and building |
| CN115126120A (en) * | 2022-07-20 | 2022-09-30 | 长沙理工大学 | Assembled double-layer X-shaped steel plate supporting superposed shear wall |
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