CN212200855U

CN212200855U - Novel concrete frame-buckling restrained brace structure

Info

Publication number: CN212200855U
Application number: CN201922051704.2U
Authority: CN
Inventors: 王世雄; 施锴; 陈至亮; 赵�卓; 林建兵
Original assignee: China Construction Fourth Bureau Third Construction Engineering Co Ltd
Current assignee: China Construction Fourth Bureau Third Construction Engineering Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-12-22
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a novel concrete frame-bucking restraint bearing structure, including bucking restraint support and first gusset plate, first gusset plate is along horizontal setting, and the bucking restraint that two slopes set up supports and sets up respectively in the both ends of first gusset plate, and the both ends of first gusset plate respectively with the upper end fixed connection that two bucking restraint supported, the lower extreme that two bucking restraint supported still is fixedly connected with second gusset plate respectively, the upper end of first gusset plate is fixed with the tip built-in fitting, the outside and the bottom of second gusset plate are fixed with bottom built-in fitting. The problem that the traditional common support is poor in buckling under pressure and hysteretic performance is solved. Belongs to the technical field of buckling restrained brace.

Description

Novel concrete frame-buckling restrained brace structure

Technical Field

The utility model relates to a novel concrete frame-bucking restraint bearing structure belongs to bucking restraint and supports technical field.

Background

In recent years, earthquakes frequently occur worldwide, and a large number of buildings are often subjected to large nonlinear deformation after the earthquakes occur, so that the function cannot be quickly recovered. For a damaged building, it is common practice to remove the reconstruction or repair reinforcement, which is more economical and easier than removing the reconstruction. However, the conventional steel support structure system is easy to produce buckling deformation and withdraw from work when the support is under the action of larger axial pressure.

Disclosure of Invention

The utility model provides a novel concrete frame-bucking restraint bearing structure to solve traditional ordinary support and press the problem that bucking and hysteresis performance are poor.

In order to solve the problems, the novel concrete frame-buckling restrained brace structure comprises buckling restrained braces and a first node plate, wherein the first node plate is transversely arranged, the two buckling restrained braces obliquely arranged are respectively arranged at two ends of the first node plate, two ends of the first node plate are respectively fixedly connected with the upper ends of the two buckling restrained braces, the lower ends of the two buckling restrained braces are respectively fixedly connected with a second node plate, an end embedded part is fixed at the upper end of the first node plate, and a bottom embedded part is fixed at the outer side and the bottom of the second node plate.

In the construction structure, the end embedded part is transversely fixed at the upper end of the second gusset plate, and the length and the width of the end embedded part are both larger than those of the first gusset plate.

Buckling restrained brace is also called as Buckling restrained brace or BRB (Buckling restrained brace), Buckling phenomenon can be generated when common brace is pressed, and rigidity and bearing capacity are sharply reduced after the brace is pressed and buckled. Under the action of earthquake or wind, the internal force of the support is changed back and forth under the two states of compression and tension. When the support is gradually changed from a buckling state to a tension state, the internal force and the rigidity of the support are close to zero. Therefore, the hysteresis performance of the common support under the action of repeated load is poor.

In order to solve the problems of the common support that the buckling is pressed and the hysteretic performance is poor, a sleeve is arranged outside the support to restrain the buckling of the support, so that the buckling restrained support is formed.

The buckling restrained brace only has the core plate connected with other components, the borne load is borne by the core plate, the outer sleeve and the filling material only restrain the core plate from buckling under compression, and the core plate can be buckled under tension and compression, so that the buckling restrained brace has excellent hysteretic performance. The buckling restrained brace can avoid the defect that the difference of the tension-compression bearing force of a common brace is obvious on one hand, and has the energy consumption capacity of a metal damper on the other hand, and the buckling restrained brace can serve as a fuse in the structure, so that the main body structure is basically in the elastic range. Therefore, the application of the buckling restrained brace can comprehensively improve the seismic performance of the traditional support frame under medium and large earthquakes.

Compared with the prior art, the buckling restrained brace has excellent hysteresis performance, can avoid the defect that the difference of the tension and pressure bearing capacity of the common brace is obvious on one hand, has the energy consumption capacity of a metal damper on the other hand, and can serve as a fuse in the structure, so that the main body structure is basically in the elastic range, therefore, the application of the buckling restrained brace can comprehensively improve the anti-seismic performance of the traditional brace frame under the conditions of medium earthquake and large earthquake; the earthquake resistance of the project structure is improved obviously, and the safety, civilization, measurement and paying-off, construction quality, construction period shortening and economic benefit are improved obviously in the construction process; the successful practice of the technology provides important data support and reference for the process construction of similar structures, and the technology can be introduced and extended to more structure construction to provide precious experience for similar projects in the future.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, the embodiment provides a novel concrete frame-buckling restrained brace structure, including buckling restrained brace 1 and first gusset plate 2, first gusset plate 2 sets up along horizontal, buckling restrained brace 1 that two slopes set up sets up respectively in the both ends of first gusset plate 2, and the both ends of first gusset plate 2 respectively with the upper end fixed connection of two buckling restrained braces 1, the lower extreme of two buckling restrained braces 1 still respectively fixedly connected with second gusset plate 3, the upper end of first gusset plate 2 is fixed with tip built-in fitting 4, the outside and the bottom of second gusset plate 3 are fixed with bottom built-in fitting 5, tip built-in fitting 4 is along horizontal being fixed in the upper end of second gusset plate 3, the length and the width of tip built-in fitting 4 all are greater than the length and the width of first gusset plate 2.

The implementation process of the buckling restrained brace comprises the following steps:

remeasured field size → field correction of the length of the gusset plate → positioning of the gusset plate → lifting of the gusset plate → in-place → fixation → buckling restrained brace lifting → in-place → temporary fixation-correction → final fixation.

Installing and implementing procedures of embedded parts:

beam bottom die supporting → beam embedded part positioning and placing → beam longitudinal bar penetrating, stirrup binding → embedded part correcting, beam side die supporting, concrete pouring → column bottom embedded part positioning and placing → column bottom embedded part positioning and juxtaposing, stirrup binding → column top embedded part position stirrup reserving → column main bar connecting, stirrup binding → embedded part correcting, beam side die supporting and concrete pouring.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a novel concrete frame-bucking restraint bearing structure which characterized in that: including bucking restraint support (1) and first gusset plate (2), horizontal setting is followed in first gusset plate (2), the bucking restraint support (1) that two slopes set up sets up respectively in the both ends of first gusset plate (2), and the both ends of first gusset plate (2) respectively with the upper end fixed connection of two bucking restraint supports (1), the lower extreme of two bucking restraint supports (1) still respectively fixedly connected with second gusset plate (3), the upper end of first gusset plate (2) is fixed with tip built-in fitting (4), outside and the bottom of second gusset plate (3) are fixed with bottom built-in fitting (5).

2. A novel concrete frame-buckling restrained brace structure as recited in claim 1, wherein: the end part embedded parts (4) are transversely fixed at the upper ends of the second node plates (3), and the length and the width of the end part embedded parts (4) are larger than those of the first node plates (2).