CN206737120U

CN206737120U - A kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band

Info

Publication number: CN206737120U
Application number: CN201720500240.7U
Authority: CN
Inventors: 吴敏; 徐燕桥; 吴灿彬; 邹昀; 李天祺; 张大林; 王城泉
Original assignee: Wuxi Housing Safety Appraisal Center; Jiangnan University
Current assignee: Wuxi Housing Safety Appraisal Center; Jiangnan University
Priority date: 2017-05-08
Filing date: 2017-05-08
Publication date: 2017-12-12
Anticipated expiration: 2027-05-08

Abstract

The utility model discloses a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band, including the precast concrete column with cantilever beam, more circular hole connectors and precast concrete beam, more circular hole connectors are fixedly connected with the precast concrete column with cantilever beam and precast concrete beam by end plate, it is arranged to replaceable joint form, web opens multiple circular holes；Its advantage is effectively to weaken the strength and stiffness in beam-ends section, consumed energy, plastic failure is betided beam-ends position first, avoids brittle break, improves the anti-seismic performance of structure；Perforate can be achieved and weaken quick-replaceable after position is destroyed, simple to install, consumption material is few, reduces expense, has certain economy.

Description

A kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band

Technical field

It the utility model is related to a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band.

Background technology

Concrete structure has reasonable utilization of materials, and normability is good, and durability and fire resistance are preferable, and maintenance cost is low, just Degree is big, and the advantages that being easy to gather materials on the spot, have a wide range of applications field.Reforming and opening up to the outside world in 30 years, concrete knot The development of structure is extremely rapid, new material, the research of new technology, exploitation and popularization and application, to the construction of engineering structure, achieves frightened The great achievement of people, its application expand day by day, no matter from the ground or underground, or even ocean, structural system is more diversified, The number of plies increases, extended height, progressively position oneself at the forefront in the world, creates record new one by one.

About research show future 50 years, China probably occur it is especially big, there is destructive earthquake, earthquake meeting A certain degree of negative effect is caused to Chinese society and economic development.So we are necessary to concrete structure bean column node Performance comprehensively studied, and research and develop new ductile bean column node form, strengthen the anti-seismic performance of bean column node, and in reality Applied in the engineering of border, reduce casualties and economic loss of the China in earthquake.

Strong column and weak beam is a structuring concept proposed from seismic design of structures angle.It is exactly that post is not broken prior to beam It is bad, be locality, pillar, which destroys, to jeopardize the safety of total because beam, which destroys, belongs to component damage --- may be whole Body collapses, and consequence is serious.So to ensure that post " relative " is safer, therefore want " strong column and weak beam ".The mentality of designing of weakening type node It is by weakening to the beam away from certain distance at beam-to-column joint, promoting plastic hinge to occur and expand in beam weak point Exhibition, greatly reduces the stress concentration phenomenon of node region, avoids node from occurring crack too early, to reach Ductility Design purpose, Weak point is equivalent to the effect for serving fuse.Because plastic hinge in the weak point of beam occurs and extended so that longer One section of beam almost enters plasticity simultaneously, that is, has been truly realized Ductility Design, has given full play to the plastic property of steel, greatly increased The energy-dissipating property of structure.

Replacement and Repair problem after destruction is another research direction of building field.For being connected by screw bolts, carry The replaceable component of splice plate, can solve the problems, such as to destroy building damage location quick-replaceable, simple to install, construction is simple, consumption It is few with material, reduce expense.It is favourable to the repairing construction after destruction, reduce operating expenses, improve the efficiency of construction.

Utility model content

The utility model purpose provides a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band.

The utility model uses for reference the construction of domestic and international ductility joint, the loading characteristic and Energy Dissipation Mechanism of analysis node, proposes A kind of novel joint constructs thinking, it is characterised in that including the precast concrete column with cantilever beam, more circular hole connectors and prefabricated Beams of concrete, the precast concrete column with cantilever beam include longitudinal precast concrete column, cantilever beam in prefabricated post and Cantilever beam end plate in prefabricated post, the cantilever beam end in described prefabricated post expose described longitudinal precast concrete column table Face, the cantilever beam end in described prefabricated post are fixedly connected with the cantilever beam end plate in described prefabricated post, and described is prefabricated mixed Solidifying Tu Liang includes horizontal concrete beam and beams of concrete end plate, and described horizontal concrete beam end is fixedly connected with described coagulation Native beam end plate, described more circular hole connectors include more circular holes splicing steel plate and two connector end plates, and described more circular holes are spelled Connect steel plate both ends and be respectively fixedly connected with connector end plate described in one piece, described two pieces of connector end plates respectively with it is described pre- Cantilever beam end plate on post processed connects with described beams of concrete end plate, is arranged to replaceable joint form, and dog bone can be achieved Quick-replaceable after section position is destroyed, simple to install, consumption material is few, reduces expense, has certain economy.

The cantilever beam end plate in the pre-buried described prefabricated post of cantilever beam end in described prefabricated post, described level are mixed Coagulate the pre-buried described beams of concrete end plate of native beam end.The company described in one piece is respectively welded in described more circular holes splicing steel plate both ends Fitting end plate, described more circular hole connector webs open multiple circular ports, effectively weaken the strength and stiffness in beam-ends section, ground In beam-ends position, protect node from damage concentration of plastic deformation in earthquake centre.Two blocks of connector steel plates respectively with it is described prefabricated Cantilever beam end plate and described beams of concrete end plate on post are connected with.

The beneficial effects of the utility model：The utility model is simple and practical, connects in normal concrete beams close to beam column Place is met, using steel structure connecting member, more circular hole perforate shapes is made in connector web and carry out beam-ends weakening, are realized outside plastic hinge Move, improve the deformability of node, effectively improve the anti-seismic performance of bean column node；In beams of concrete close to beam-ends junction Pre-embedded steel slab, it is connected by screw bolts, more circular hole open-cell steel structure connecting members is turned into replaceable form, realize perforate section portion Quick-replaceable after position is destroyed, simple to install, consumption material is few, and rehabilitation expense reduces.

Brief description of the drawings

Fig. 1 the utility model framework composition node drawings；

In Fig. 1,1-longitudinal precast concrete column；Cantilever beam in 2-prefabricated post；Cantilever beam-ends in 3-prefabricated post Plate；4-horizontal concrete beam；5-beams of concrete end plate；6-more circular holes splicing steel plate；7-connector end plate；8-bolt.

Embodiment

Fig. 1 show a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band.Including band cantilever beam Precast concrete column, more circular hole connectors and precast concrete beam, the precast concrete column with cantilever beam include longitudinal direction it is prefabricated Concrete column 1, the cantilever beam end plate 3 on cantilever beam 2 and prefabricated post in prefabricated post, the end of cantilever beam 2 in prefabricated post are exposed Longitudinal surface of precast concrete column 1, the end of cantilever beam 2 in prefabricated post is fixedly connected with the cantilever beam end plate 3 in prefabricated post, prefabricated Beams of concrete includes horizontal concrete beam 4 and beams of concrete end plate 5, and the end of horizontal concrete beam 4 is fixedly connected with concrete beam end Plate 5, more circular hole connectors include more circular holes splicing steel plate 6 and two connector end plates 7, more circular hole splicing steel plate 6 both ends difference Be fixedly connected with one piece of connector end plate 7, two pieces of connector end plates 7 respectively with the cantilever beam end plate 3 and beams of concrete in prefabricated post End plate 5 connects, and is arranged to replaceable joint form.

In this instantiation, the cantilever beam end plate 3 in the pre-buried prefabricated post in the end of cantilever beam 2 in prefabricated post, level is mixed Coagulate the native pre-buried beams of concrete end plate 5 in the end of beam 4.One piece of connector end plate 7 is respectively welded in more circular hole splicing steel plate 6 both ends, more round Hole connector web opens multiple circular ports, effectively weakens the strength and stiffness in beam-ends section, by concentration of plastic deformation in earthquake In beam-ends position, protect node from damage.Two blocks of connector steel plates respectively with the cantilever beam end plate and concrete in prefabricated post Beam end plate is connected with, and is arranged to replaceable joint form.

Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in Within the scope of shield.

Claims

1. a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band, it is characterised in that including with cantilever beam Precast concrete column, more circular hole connectors and precast concrete beam, the precast concrete column with cantilever beam include longitudinal direction Precast concrete column, the cantilever beam end plate on cantilever beam and prefabricated post in prefabricated post, the cantilever beam-ends in described prefabricated post Described longitudinal precast concrete column surface is exposed in portion, and the cantilever beam end in described prefabricated post is fixedly connected described prefabricated Cantilever beam end plate on post, described precast concrete beam include horizontal concrete beam and beams of concrete end plate, described level Beams of concrete end is fixedly connected with described beams of concrete end plate, described more circular hole connectors include more circular holes splicing steel plate and Two pieces of connector end plates, described more circular holes splicing steel plate both ends are respectively fixedly connected with the connector end plate described in one piece, described Two pieces of connector end plates be connected respectively with the cantilever beam end plate in described prefabricated post and described beams of concrete end plate, set Into replaceable joint form, quick-replaceable after dog bone section position is destroyed can be achieved, simple to install, consumption material is few, reduces Expense, there is certain economy.

2. a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band as claimed in claim 1, its feature The cantilever beam end plate being in the pre-buried described prefabricated post of the cantilever beam end in described prefabricated post, described Horizontal concrete The pre-buried described beams of concrete end plate of beam end.

3. a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band as claimed in claim 1, its feature It is, the connector end plate described in one piece, described more circular hole connectors are respectively welded in described more circular holes splicing steel plate both ends Multiple circular ports are opened on web, effectively weaken the strength and stiffness in beam-ends section, by concentration of plastic deformation in beam-ends in earthquake Position, protect node from damage.

4. a kind of replaceable Prefabricated Concrete frame joint of the more circular hole splicing steel plates of beam-ends band as claimed in claim 1, its feature Be, two blocks of connector steel plates respectively with the cantilever beam end plate in described prefabricated post and described beams of concrete end plate bolt Connection, is arranged to replaceable joint form, realizes that perforate weakens quick-replaceable after position is destroyed, simple to install, consumes material It is few, reduce expense.