Tension-compression loading-type mild steel damper with replaceable function

A mild steel damper and functional technology, applied in building types, building components, shockproof, etc., can solve the problems of no damper, consumption of axial external energy, etc., to achieve good shock absorption effect, good hysteretic energy dissipation performance, More shock absorption effect

Active Publication Date: 2018-12-11
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the seismic damage characteristics of column structures, support structures and shear walls, it can be seen that the phenomenon of plastic regions caused by tension and compression deformation in local structures is relatively common, but there are no related dampers to consume axial external energy

Method used

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  • Tension-compression loading-type mild steel damper with replaceable function
  • Tension-compression loading-type mild steel damper with replaceable function
  • Tension-compression loading-type mild steel damper with replaceable function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] refer to Figure 18 , the present invention can be applied to the shear wall structure 11. During construction, a damper installation chamber is reserved at the bottom area of ​​the shear wall structure 11, and the present invention is installed in the damper installation chamber. The position of the damper installation chamber is It is determined according to the magnitude of the energy of the earthquake and the plastic zone prone to damage at the toe of the shear wall under the earthquake. The bearing capacity of the shear wall structure 11 decreases due to the excavation of a certain space, and the lost bearing capacity is compensated by reducing the horizontal distribution of the steel bar spacing of the shear wall structure 11 within the range of the parallel height of the damper. The bearing capacity of the shear wall structure 11 with the damper is basically the same as that of the original intact shear wall structure 11, but its energy dissipation capacity is fa...

Embodiment 2

[0079] refer to Figure 19 , the present invention is applied to the giant column structure 12, wherein a damper installation cavity is reserved at the four corners of the bottom area of ​​the giant column structure 12, and the present invention is installed in the damper installation cavity. When the giant column structure 12 has higher requirements on the initial stiffness and yield strength, the number of the first corrugated webs 61 and the second corrugated webs 62 can be multiplied until the above requirements are met. When the number of arrangements is greater than two, it is necessary to increase the thickness of each flange, the middle vertical plate 2, the right vertical plate 5, the right vertical plate 5 and the stiffener proportionally in multiples to ensure their stiffness ratio to the corrugated web. .

[0080] Similarly, when part of the giant column structure 12 is dug out, the load-bearing capacity decreases, and the lost bearing capacity can also be compens...

Embodiment 3

[0082] refer to Figure 20 , the present invention is applied to the column foot support structure 13. The main function of the column foot support structure 13 is to prevent the column structure from tilting or toppling under the action of earthquake force. The column foot support structure 13 is an axially stressed member, and it is not easy to replace after being damaged. , it is difficult to quickly restore the anti-seismic performance of the main structure. Therefore, the present invention is added in the middle of the column foot support structure 13, and the present invention can effectively control the axial tension-compression plastic deformation of the column foot support structure 13, and prevent the column foot support structure 13 from being bent It can reduce the lateral displacement of the protective column structure and play a more effective shock absorption and vibration isolation effect. After the earthquake, only the damaged damper is replaced. The installati...

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PUM

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Abstract

The invention discloses a tension-compression loading-type mild steel damper with a replaceable function. A middle vertical board is fixed at the bottom of an upper end board. A left-side vertical board and a right-side vertical board are fixed on a lower end board. A gap is kept between the lower end of the middle vertical board and the lower end board. A gap is kept between the upper end of theleft side vertical board and the upper end board. A gap is kept between the upper end of the right-side vertical board and the upper end board. One end of a first flange and one end of a third flangeare fixed onto the left side vertical board. The other end of the first flange and the other end of the third flange are both fixed onto the middle vertical board. One end of a second flange and one end of a fourth flange are both fixed onto a right side vertical board. The other end of the second flange and the other end of the fourth flange are both fixed onto the middle vertical board. A firstwave-shaped web board is fixed in a space enclosed by the first flange, the third flange, the left side vertical board and the middle vertical board. A second wave-shaped web board is fixed in a spaceenclosed by a second flange, the fourth flange, the right side vertical board and the middle vertical board. The damper can be placed in a main body structure which undergoes plastic deformation in axial direction.

Description

technical field [0001] The invention belongs to the field of anti-seismic and shock-absorbing civil engineering, and relates to a tension-compression loaded mild steel damper with a replaceable function. Background technique [0002] At present, there are more and more high-rise and ultra-high-rise buildings, and the requirements for structural earthquake resistance are also increasing, especially in earthquake areas. According to the actual engineering, the shear walls were damaged to varying degrees after the earthquake, especially the bottom area of ​​the shear walls was seriously damaged. In some buildings, the concrete at the toe of the shear walls was crushed and the steel bars were crushed. Therefore, it is necessary to propose the shock absorption and isolation of the shear wall. The current practice is usually to strengthen the edge restraint members of the shear wall, which has strengthened the seismic capacity. However, the effect of the current shear wall to en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/02
Inventor 王威梁宇建徐金兰张恒向照兴黄元昭
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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