Earthquake energy dissipation structure of multi-pillar pier

A bridge pier and seismic technology, applied in the field of multi-column bridge pier seismic energy-dissipating structures, can solve the problems of high cost of lead core bearings, difficult repair of connecting beams, and difficult immediate repair, etc., achieve good shock absorption effect, wide application range, The effect of convenient construction

Active Publication Date: 2014-03-12
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Problems solved by technology

However, the cost of lead core bearings is high, and it has not been widely used since its inception. Although the ductile design method can avoid bridge collapse, the permanent deformation of the plastic hinges will cause serious damage to the bridge piers, making it difficult to repair immediately after the earthquake, thus losing the post-disaster bridge. much-needed transport function
[0003] Following the idea of ​​ductility design,

Method used

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  • Earthquake energy dissipation structure of multi-pillar pier
  • Earthquake energy dissipation structure of multi-pillar pier
  • Earthquake energy dissipation structure of multi-pillar pier

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] refer to figure 1 , the multi-column pier seismic energy dissipation structure of the present invention includes adjacent left pier columns 11 and right pier columns 12 . Between the left pier column 11 and the right pier column 12, one or a plurality of energy-dissipating transverse beams 20 are arranged at longitudinal intervals, and the energy-dissipating transverse beams 20 include steel structural beams 22 and The mild steel energy-dissipating components at both ends are connected to the left pier 11 and the right pier 12 .

[0016] refer to image 3 and Figure 4 , the mild steel energy dissipation member is composed of mild steel energy dissipation unit groups arranged laterally at intervals on the end faces of steel structural beams 22, and each mild steel energy dissipation unit group includes at least two longitudinally arranged mild...

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Abstract

The invention provides an earthquake energy dissipation structure of a multi-pillar pier. The earthquake energy dissipation structure of the multi-pillar pier aims to improve the vibration reducing performance of a bridge so that the bridge keeps the structural integrity after an earthquake. The earthquake energy dissipation structure of the multi-pillar pier comprises a left side pier pillar (11) and a right side pier pillar (12) which are adjacent to each other, wherein an energy dissipation cross tie beam (20) is arranged between the left side pier pillar (11) and the right side pier pillar (12) or a plurality of energy dissipation cross tie beams (20) are longitudinally arranged at intervals between the left side pier pillar (11) and the right side pier pillar (12); the energy dissipation cross tie beam (20) comprises a steel structure cross beam (22), and soft steel energy dissipation members which are fixedly arranged at the two longitudinal ends of the steel structure cross beam (22); the soft steel energy dissipation members are connected with the left side pier pillar (11) and the right side pier pillar (12).

Description

technical field [0001] The invention relates to a bridge shock-absorbing structure, in particular to a multi-column pier seismic energy-dissipating structure. Background technique [0002] Summarizing the development history of structural seismic technology, it can be divided into three ways: "resistance", "elimination" and "separation". The so-called "resistance" refers to the development of high-performance structural materials and high-performance structural components, such as high-strength concrete, high-strength steel bars, high-strength steel, section steel concrete structures, and steel pipe concrete structures, starting from the improvement of the structure's own seismic performance. The so-called "dissipation" refers to using the idea of ​​structural anti-seismic control to add energy dissipation elements to the structure to help the structure consume seismic energy. Energy dissipation elements such as metal dampers, friction dampers, viscoelastic dampers, viscous ...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D19/04
Inventor 曾永平刘鹏杨平陈克坚袁明杨国静
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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