CN206438677U

CN206438677U - A kind of T-shaped concrete column of belt restraining pull bar

Info

Publication number: CN206438677U
Application number: CN201621411326.4U
Authority: CN
Inventors: 张咪; 卜俣帆
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2017-08-25
Anticipated expiration: 2026-12-22

Abstract

The utility model discloses a kind of T-shaped concrete column, particularly a kind of T-shaped concrete column of belt restraining pull bar, including T-steel pipe, core concrete, binding bar.The steel plate that the T-steel pipe is made by precast plant is welded；The steel plate is every the reserved hole of certain level distance；The core concrete is filled into steel pipe column by C40 commerical ready-mixed concrete and formed；The binding bar is enclosed on steel pipe and fixed with bolt.Using the T-shaped concrete column of belt restraining pull bar, during concrete filled steel tube stress, outside steel pipe and core concrete can be securely joined with, pull bar provides lateral confinement support for steel pipe walls, strengthen the lateral rigidity of steel plate wall, delay the appearance of steel pipe walls local buckling, reduce the deformation of steel pipe walls, so as to strengthen the stability and ductility of steel pipe walls, pull bar and steel pipe walls are mutually coordinated simultaneously, effect of contraction is produced to core concrete, core concrete is set to be in triaxial stress state, effect of restraint is significantly improved, so that the stress performance of concrete filled steel tube is greatly improved and improved.

Description

A kind of T-shaped concrete column of belt restraining pull bar

Technical field

The utility model is related to T-shaped concrete column field, especially a kind of T-shaped concrete column of belt restraining pull bar, with suitable Should the high-rise, development of super-high building structure.

Background technology

With extensive use of the round steel core concrete column in high-rise, super-high building structure, people are it has also been found that it has The shortcoming for itself being difficult to overcome：On the one hand, using round steel core concrete column, it is not easy to and builds at some positions of structure Planar design requirement coincide, such as suspension column, escalator shear wall etc.；On the other hand, the joint structure of round steel core concrete column Complicated, form it is complicated it is various, cause very big difficulty to design and construction, cost is also higher.And use T-steel pipe concrete column then The deficiency of the round steel core concrete column of the above can be preferably solved, the need for adapting to high-rise, super-high building structure development. But lot of experiments shows, a kind of this T-steel pipe concrete column, due to straightway steel plate core concrete outwardly against When have flexural deformation, the effect of contraction to core concrete, therefore constraint of the steel pipe to core concrete are weakened, in corner point It is most strong, it is weaker in side, constrain smaller in side edge mid-points, it is low that this allows for the round steel core concrete column of its bearing capacity ratio, warp Ji property is not good.

The content of the invention

In order to solve the deficiency of existing issue, the steel pipe of currently common T-steel pipe concrete column is overcome to core concrete Sidewise restraint effect is weaker so as to cause the not good shortcoming of stress performance mixed there is provided a kind of T-steel pipe of belt restraining pull bar Solidifying earth pillar.

The utility model is adopted the following technical scheme that：

The utility model discloses a kind of T-shaped concrete column of belt restraining pull bar, including T-steel pipe, core concrete, constraint Pull bar.The steel plate that the steel pipe is made by precast plant is welded；The steel-pipe welding is T-steel pipe；The steel plate is in welding It is preceding that machine drilling at pull bar is set in steel plate in advance；The binding bar is enclosed on the reserved hole of steel pipe, the pull bar two ends Tightened by nut and backing plate is set under fixation, nut, nut implements weld all around with binding bar periphery；The core concrete by C40 commerical ready-mixed concretes, which are poured, to be formed.

The advantageous effects obtained using as above technical scheme：

The T-steel pipe concrete column of belt restraining pull bar, outside steel pipe and core concrete can be securely joined with, and coordinate to become Shape cooperation, the constraint due to binding bar to steel plate deformed, steel pipe can play preferably constraint to core concrete and make With, be improved the axial bearing capacity of core concrete, its overall axial bearing capacity be more than steel pipe and each self-supporting of concrete The simple algebraical sum of power is carried, therefore, horizontal restraint pull bar is set in T-steel pipe concrete column cross section, her can be greatly improved Bearing capacity and ductility.

Brief description of the drawings

Fig. 1 is the cross-sectional view of belt restraining pull bar T-steel pipe concrete column.

Fig. 2 is belt restraining pull bar T-steel pipe concrete column dimensional structure diagram.

In figure, 1-T shape steel tubes, 2- core concretes, 3- binding bars, 4- backing plates, 5- nuts, 6- weld seams.

Embodiment

In Fig. 1, a kind of T-shaped concrete column of belt restraining pull bar, including T-steel pipe, core concrete, binding bar.It is described The steel plate that steel pipe 1 is made by precast plant is welded；The steel plate is welded as T-steel pipe 1；The steel plate exists in advance before welding Steel plate sets machine drilling at pull bar；The binding bar 3 is enclosed on the reserved hole of steel pipe, and the pull bar two ends pass through nut 5 tighten setting backing plate 4 under fixation, nut, and nut 5 implements weld all around with the periphery of binding bar 3 and forms angle welding 6；The core is mixed Solidifying soil 2 is poured by C40 commerical ready-mixed concretes to be formed.

The T-steel pipe concrete column of belt restraining pull bar, outside steel pipe and core concrete can be securely joined with, and coordinate to become Shape cooperation, the constraint due to binding bar to steel plate deformed, steel pipe can play preferably constraint to core concrete and make With, be improved the axial bearing capacity of core concrete, its overall axial bearing capacity be more than steel pipe and each self-supporting of concrete The simple algebraical sum of power is carried, therefore, horizontal restraint pull bar is set in T-steel pipe concrete column, its carrying can be greatly improved Ability and ductility.

Certainly, described above is only preferred embodiment of the present utility model, and the utility model is not limited to enumerate above-mentioned Embodiment, it should be noted that any those skilled in the art are under the guidance of this specification, and that is made is all etc. With replacement, obvious variant, all fall within the essential scope of this specification, ought to be by protection of the present utility model.

Claims

1. a kind of T-shaped concrete column of belt restraining pull bar, including T-steel pipe, core concrete, binding bar；Steel plate is before welding Machine drilling at pull bar is set in steel plate in advance；Binding bar is enclosed on the reserved hole of steel pipe, is set on steel pipe cross section Binding bar, effect of contraction is produced to core concrete；Pull bar two ends fixation, nut underlay backing plate, nut are tightened by nut Implement weld all around with binding bar periphery.

2. a kind of T-shaped concrete column of belt restraining pull bar according to claim 1, it is characterised in that steel-pipe welding is T-steel Pipe, it is easy to coincide with architectural design plane.

3. a kind of T-shaped concrete column of belt restraining pull bar according to claim 1, it is characterised in that T-steel pipe is by pre-manufactured steel Plate weld is formed, simple to operate.

4. a kind of T-shaped concrete column of belt restraining pull bar according to claim 1, it is characterised in that the core concrete by The mixed soil of C40 commodity, which is poured, to be formed.