CN218374382U

CN218374382U - Prefabricated assembled large-span prestressing force connection structure

Info

Publication number: CN218374382U
Application number: CN202221437842.XU
Authority: CN
Inventors: 华可琰
Original assignee: Jiangsu Huayuan Architectural Design & Research Institute Co ltd
Current assignee: Jiangsu Huayuan Architectural Design & Research Institute Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-01-24
Anticipated expiration: 2032-06-08

Abstract

The utility model relates to a prefabricated large-span prestressing force connection structure belongs to assembly type building structure technical field, and it includes precast beam and prefabricated post, be equipped with first connecting seat in the precast beam, be equipped with the second connecting seat in the prefabricated post, be connected with the antidetonation attenuator between first connecting seat and the second connecting seat. The anti-seismic damper, the precast beam and the precast column jointly form the anti-seismic connecting node, when the structure is subjected to earthquake action, the connecting node of the precast beam and the precast column can be restored to a pre-earthquake state after being stressed and deformed by the anti-seismic damper, the self-resetting capability of the node is effectively improved, the damage to the component is reduced, the generation of cracks on the component is reduced, and the anti-seismic performance of the connecting node structure is improved.

Description

Prefabricated assembled large-span prestressing force connection structure

Technical Field

The application relates to the technical field of assembly type building structures, in particular to a prefabricated assembly type large-span prestress connecting structure.

Background

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing prefabricated building components such as precast beams, precast columns and precast floor slabs in the factory, transporting the prefabricated building components to a building construction site, and assembling and installing the prefabricated building components on the site in a reliable connection mode. Compared with the construction mode of concrete pouring on site, the prefabricated building has the advantages of less construction workload, short construction period and high construction efficiency.

Some buildings requiring large-span prefabricated components, such as gymnasiums, airport terminal buildings, exhibition centers, libraries, etc., have high requirements for the shock resistance of the structures. And during present assembly type building construction, the connected node of precast beam and precast column is fixed connection structure mostly, and this type of connection structure performance is good, it is clear and definite to pass power, does not take place to destroy easily and can guarantee the holistic stability of structure. But also lead to the shock resistance of large-span fabricated building not good simultaneously, prefabricated component easily produces deformation damage under the earthquake effect.

SUMMERY OF THE UTILITY MODEL

In order to improve the above-mentioned problem, the present application provides a prefabricated large-span prestressed connection structure.

The application provides a prefabricated assembled large-span prestressing force connection structure adopts following technical scheme:

the utility model provides a prefabricated assembled large-span prestressing force connection structure, includes precast beam and prefabricated post, be equipped with first connecting seat in the precast beam, be equipped with the second connecting seat in the prefabricated post, be connected with the antidetonation attenuator between first connecting seat and the second connecting seat.

Through adopting above-mentioned technical scheme, antidetonation damper, precast beam and precast column have formed antidetonation connected node jointly, and when the structure received earthquake action, setting up of antidetonation damper made the connected node of precast beam and precast column can resume to the state before the earthquake after the atress warp, effectively improved the node from the reset ability, reduce the injury that leads to the fact itself to the component, reduce the production of crack on the component, improved the anti-seismic performance of connected node structure department.

Preferably, all articulated on first connecting seat and the second connecting seat have a rotation connecting piece, rotation connecting piece and antidetonation attenuator fixed connection.

Through adopting above-mentioned technical scheme, precast beam and precast column relative position take place the skew after the atress, and the antidetonation attenuator takes place deformation thereupon and produces the motion trend, and the antidetonation attenuator drives and rotates the relative connecting seat of connecting piece and rotate, has increased the flexibility and the flexibility of connected node, has improved connected node's antidetonation effect.

Preferably, the opposite sides of prefabricated post all are equipped with the second connecting seat, be equipped with the anchor muscle between two second connecting seats, the anchor muscle runs through in prefabricated post and the tip all is connected with the second connecting seat.

Through adopting above-mentioned technical scheme, the anchor muscle in the single prefabricated post is connected with the second connecting seat of relative both sides simultaneously, can improve the stability of the relative position between two second connecting seats through the anchor muscle to improve the uniformity of two connecting seat atress sizes, made the holistic atress of prefabricated post more balanced, reduced the damage that the connected node caused because of the atress is inhomogeneous.

Preferably, the second connecting seat is provided with a mounting hole, the mounting hole is used for inserting an anchoring rib, and the anchoring rib is fixedly connected with the second connecting seat.

Through adopting above-mentioned technical scheme, during the installation second connecting seat, insert the mounting hole on the second connecting seat with the anchor muscle, fix a position the second connecting seat through the mounting hole, then with anchor muscle and second connecting seat fixed connection, realize the fixed connection between second connecting seat and the prefabricated post.

Preferably, the prefabricated beam is internally provided with a first prestressed duct, the prefabricated column is internally provided with a second prestressed duct, the first prestressed duct is communicated with the second prestressed duct, and the prestressed duct is used for the prestressed rib to pass through.

By adopting the technical scheme, after the first prestressed tendon pore passage is communicated with the second prestressed tendon pore passage, the prestressed tendon is installed, and when the prestressed tendon is acted by an earthquake, the prestressed tendon is arranged, so that the crack damage caused by the deformation of the component due to overlarge stress can be reduced, and the self-resetting capability of the connecting node is improved.

Preferably, the prefabricated column is provided with a first connecting rib hole, the prefabricated beam is provided with a second connecting rib hole, the first connecting rib hole is communicated with the second connecting rib hole, and the connecting rib hole is used for a connecting rib to pass through.

Through adopting above-mentioned technical scheme, the splice bar wears to locate first splice bar pore and second splice bar pore, makes precast beam and prefabricated post establish and is connected, and the splice bar is located the splice point department and has improved the compressive capacity of splice point.

Preferably, the prefabricated beam further comprises a middle span rib, the middle span rib is embedded in the prefabricated beam along the length direction of the prefabricated beam, and the middle span rib is fixedly connected with the connecting rib.

Through adopting above-mentioned technical scheme, span the intensity that the muscle set up in precast beam has improved precast beam in, has also improved precast beam's compressive capacity simultaneously, with the prestressing tendons cooperation reduce the deformation and the production of crack after the effect of precast beam received the force.

Preferably, a connecting sleeve is arranged in one end, close to the prefabricated column, of the first connecting rib hole, and one end of the connecting sleeve protrudes out of the end face of the prefabricated beam and extends into the second connecting rib hole.

By adopting the technical scheme, when the precast beam is installed, the connecting sleeve enables the first connecting rib hole channel and the second connecting rib hole channel to be aligned and connected, so that the positioning of the relative position between the precast beam and the precast column is facilitated, the installation convenience is improved, and meanwhile, the accuracy of the connecting position between the precast components is also improved.

Preferably, a connecting seam is reserved at the connecting position of the precast beam and the precast column.

Through adopting above-mentioned technical scheme, when overall structure received the earthquake effect, can be at first at the gap beginning deformation of precast beam and precast column's junction, the gap grow gradually, after the earthquake effect, under the effect of antidetonation attenuator and prestressing tendons, overall structure has better from the ability of restoring to the throne, reduces the damage that causes other prefabricated component itself.

Preferably, be equipped with the supporting shoe on the precast column, be equipped with the strengthening rib in the supporting shoe, one side that the supporting shoe deviates from ground and precast beam butt.

Through adopting above-mentioned technical scheme, supporting shoe and precast beam butt for support the precast beam, the precast beam of being convenient for realizes being connected with the precast column, and the strengthening rib has improved the intensity of supporting shoe, makes the supporting shoe more stable to the support of precast beam, reduces precast beam in the installation and the skew that produces.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the anti-seismic damper, the precast beam and the precast column jointly form an anti-seismic connecting node, when the structure is subjected to the action of an earthquake, the arrangement of the anti-seismic damper enables the connecting node of the precast beam and the precast column to be restored to a pre-earthquake state after being stressed and deformed, the self-resetting capability of the node is effectively improved, the damage to the component is reduced, the generation of cracks on the component is reduced, and the anti-seismic performance of the connecting node structure is improved;

2. through the setting of anchor muscle and second connecting seat, the anchor muscle in single prefabricated post is connected with the second connecting seat of relative both sides simultaneously, can improve the stability of the relative position between two second connecting seats through the anchor muscle to improve the uniformity of two connecting seat atress sizes, made the holistic atress of prefabricated post more balanced, reduced the damage that the node causes because of the atress is inhomogeneous.

Drawings

Fig. 1 is a general schematic diagram for embodying a prefabricated large-span prestressed connecting structure in the embodiment of the present application.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of positions of prestressed tendons inside precast beams and precast columns according to an embodiment of the application.

Fig. 4 is a partially enlarged view of portion B in fig. 3.

Description of the reference numerals: 1. prefabricating a beam; 11. a first connecting seat; 12. a first pre-stressed duct; 13. a first connecting rib hole channel; 14. a rib penetrating groove; 15. a beam connecting portion; 16. spanning the middle beam; 2. prefabricating a column; 21. a second connecting seat; 22. a second pre-stressed duct; 23. a second connecting rib hole channel; 24. anchoring ribs; 25. a supporting block; 3. a shock-resistant damper; 4. rotating the connecting piece; 5. prestressed tendons; 6. connecting ribs; 7. crossing middle ribs; 8. and connecting the sleeve.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses prefabricated assembled large-span prestressing force connection structure, as shown in fig. 1, including precast beam 1 and precast column 2, the connected node of precast beam 1 and precast column 2 is equipped with antidetonation attenuator 3. The precast beam 1, the precast column 2 and the anti-seismic damper 3 jointly form an energy consumption system, after the earthquake action is taken, the relative position between the precast beam 1 and the precast column 2 can basically recover to the pre-earthquake state, and the damage to the members is reduced.

As shown in fig. 1 and 2, the anti-seismic damper 3 is a metal damper or a viscous damper. Single prefabricated post 2 is connected with two precast beams 1, and prefabricated post 2 is equipped with anchor muscle 24 and the equal protrusion in the surface of prefabricated post 2 in the both ends of anchor muscle 24 along 1 length direction of precast beam, and the equal fixedly connected with second connecting seat 21 in the both sides surface of prefabricated beam 1 is gone up to prefabricated post 2, has seted up the mounting hole on the second connecting seat 21. When the second connecting seat 21 is installed, the anchoring rib 24 is firstly inserted into the mounting hole, and the anchoring rib 24 and the second connecting seat 21 are welded, so that the second connecting seat 21 and the prefabricated column 2 are fixedly connected. One side fixedly connected with first connecting seat 11 of precast beam 1 towards ground all articulates on first connecting seat 11 and the second connecting seat 21 has rotating connecting piece 4, and the both ends of antidetonation attenuator 3 respectively with two rotating connecting piece 4 fixed connection. A structure similar to a triangle is formed among the anti-seismic damper 3, the precast beam 1 and the precast column 2, when the building is subjected to earthquake action, the anti-seismic damper 3 can bear forces from multiple directions when the precast beam 1 and the precast column 2 are in relative displacement, the anti-seismic damper 3 rotates or moves and deforms accordingly, and an energy dissipation system formed by the anti-seismic damper and the beam column can enable the relative position between the precast beam 1 and the precast column 2 to be basically recovered after the earthquake action.

As shown in fig. 3 and 4, the precast beam further comprises a prestressed tendon 5, a connecting tendon 6 and a midspan tendon 7, and the precast beam 1 consists of a beam connecting part 15 and a midspan beam 16. A first prestressed tendon pore passage 12 is formed in the beam connecting portion 15, a second prestressed tendon pore passage 22 which can be communicated with the first prestressed tendon pore passage 12 is formed in the precast column 2, the prestressed tendon 5 penetrates through the prestressed pore passage, and the prestressed tendon 5 is an unbonded prestressed tendon. The arrangement of the prestressed tendons 5 further reduces the damage of the component caused by earthquake action, and the prestressed tendons are matched with the anti-seismic damper 3, so that the anti-seismic capacity of the assembled component is further improved. Set up first splice bar pore 13 in the roof beam connecting portion 15, set up second splice bar pore 23 in the precast column 2, first splice bar pore 13 and the 23 intercommunication of second splice bar pore, splice bar 6 wears to locate in the splice bar pore, strides and has seted up along self length direction on the well roof beam 16 and wear muscle groove 14, wears muscle groove 14 and supplies splice bar 6 to wear to establish, strides well muscle 7 pre-buried in striding well roof beam 16 and both ends are located and wear muscle groove 14. The connecting ribs 6 greatly improve the connecting strength between the precast beam 1 and the precast columns 2, and the existence of the span middle ribs 7 also improves the self pressure resistance of the precast beam 1.

As shown in fig. 1 and 4, in order to improve the positioning accuracy when installing the prefabricated parts, a connecting sleeve 8 is fixedly connected to the end of the first connecting rib duct 13 near the prefabricated column 2. The opposite two sides fixedly connected with supporting shoe 25 towards precast beam 1 on precast column 2, pre-buried the strengthening rib in the supporting shoe 25, the setting of strengthening rib has improved the support intensity of supporting shoe 25. When assembling at the job site, with the both ends butt of precast beam 1 on the supporting shoe 25 of two adjacent precast columns 2, support precast beam 1 through supporting shoe 25, then stretch into in the second splice bar pore 23 in precast column 2 with adapter sleeve 8, realize through adapter sleeve 8 that precast beam 1 is connected with precast column 2's preliminary location, then wear to locate in the 6 pore of splice bar and with stride well muscle 7 welding with splice bar 6, further realize being connected between precast beam 1 and the precast column 2. A gap is reserved at the joint of the precast beam 1 and the precast column 2, when the members are subjected to earthquake action, the position deviation and deformation are firstly generated at the gap, and after the earthquake, under the action of the anti-seismic damper 3 and the prestressed tendons 5, the relative position between the precast members can be gradually restored to the pre-earthquake state.

The implementation principle of the prefabricated large-span prestressed connection structure in the embodiment of the application is as follows:

an anti-seismic damper 3 is arranged at the connecting node of the precast beam 1 and the precast column 2, and when the earthquake occurs, an energy consumption system is formed among the precast beam 1, the precast column 2 and the anti-seismic damper 3, and the anti-seismic damper can rotate or move along with the deviation of the position of the precast member. Meanwhile, the prestressed tendons 5 arranged in the precast beam 1 and the precast column 2 are always in an elastic working state, and the anti-seismic damper 3 and the prestressed tendons 5 are matched with each other, so that the self-resetting performance of the whole structure is ensured while the anti-seismic capacity of the joint of the prefabricated assembly type structure is greatly improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a prefabricated large-span prestressing force connection structure, includes precast beam (1) and precast column (2), its characterized in that: be equipped with first connecting seat (11) in precast beam (1), be equipped with second connecting seat (21) in prefabricated post (2), be connected with antidetonation attenuator (3) between first connecting seat (11) and second connecting seat (21).

2. The prefabricated large-span prestressed connecting structure according to claim 1, characterized in that: all articulated on first connecting seat (11) and second connecting seat (21) have rotation connecting piece (4), rotation connecting piece (4) and antidetonation attenuator (3) fixed connection.

3. The prefabricated large-span prestressed connecting structure according to claim 1, characterized in that: the relative both sides of prefabricated post (2) all are equipped with second connecting seat (21), be equipped with anchor muscle (24) between two second connecting seats (21), anchor muscle (24) run through in prefabricated post (2) and the tip all is connected with second connecting seat (21).

4. The prefabricated large-span prestressed connecting structure according to claim 3, wherein: and a mounting hole is formed in the second connecting seat (21), an anchoring rib (24) is inserted into the mounting hole, and the anchoring rib (24) is fixedly connected with the second connecting seat (21).

5. The prefabricated large-span prestressed connecting structure according to claim 1, wherein: the prestressed concrete column is characterized by further comprising prestressed tendons (5), a first prestressed duct (12) is formed in the precast beam (1), a second prestressed duct (22) is formed in the precast column (2), the first prestressed duct (12) is communicated with the second prestressed duct (22), and the prestressed duct is used for the prestressed tendons (5) to penetrate through.

6. The prefabricated large-span prestressed connecting structure according to claim 1, characterized in that: still include splice bar (6), first splice bar pore (13) have been seted up on precast beam (1), second splice bar pore (23) have been seted up on prefabricated post (2), first splice bar pore (13) and second splice bar pore (23) intercommunication, the splice bar pore supplies splice bar (6) to pass.

7. The prefabricated large-span prestressed connecting structure according to claim 1, wherein: still including striding well muscle (7), stride well muscle (7) along the length direction pre-buried in precast beam (1) of precast beam (1), stride well muscle (7) and splice bar (6) fixed connection.

8. The prefabricated large-span prestressed connecting structure according to claim 6, characterized in that: one end of the first connecting rib hole (13) close to the prefabricated column (2) is internally provided with a connecting sleeve (8), and one end of the connecting sleeve (8) protrudes out of the end face of the prefabricated beam (1) and extends into the second connecting rib hole (23).

9. The prefabricated large-span prestressed connecting structure according to claim 1, wherein: and a connecting seam is reserved at the connecting part of the precast beam (1) and the precast column (2).

10. The prefabricated large-span prestressed connecting structure according to claim 1, characterized in that: be equipped with supporting shoe (25) on prefabricated post (2), be equipped with the strengthening rib in supporting shoe (25), one side that supporting shoe (25) deviate from ground and precast beam (1) butt.