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Damping structure for continuous rigid frame pier with limited constraint

A finite and pier technology, which is applied in the field of finitely constrained shock-absorbing structures of continuous rigid frame piers, can solve problems such as troublesome replacement, and achieve the effects of avoiding maintenance costs, simple reset, and saving bridge construction costs

Inactive Publication Date: 2014-03-19
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

In existing engineering applications, there are few shock-absorbing measures for continuous rigid frame bridges, and some energy-dissipating structures have been tried in actual structures, but these devices or components generally have the problem of troublesome replacement after earthquakes

Method used

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  • Damping structure for continuous rigid frame pier with limited constraint
  • Damping structure for continuous rigid frame pier with limited constraint

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] refer to figure 1 and figure 2 , the continuous rigid frame pier finite restraint damping structure of the present invention, comprises pier column 10 and the foundation that is made of cap 20, pile foundation 21, and cap 20 has the limited constrained displacement side wall 22 that is arranged along its periphery, and this finite constrained A plurality of ultra-high performance concrete balls 30 are placed on the bottom surface of the displacement side wall 22 . The bottom of the pier column 10 has a pier column support platform 11 integrated therewith, and the pier column support platform 11 is seated on the ultra-high performance concrete ball 30 .

[0013] The ultra-high-performance concrete ball 30 is made of ultra-high-performance concrete, which has ultra-high durability and ultra-high mechanical properties, and is not afraid of corros...

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Abstract

A damping structure for a continuous rigid frame pier with limited constraint is used for reducing the energy inputted in a bridge in earthquake, reducing the earthquake response of the bridge structure, and improving the reliability of the earthquake resistance. The damping structure comprises a pier stud and a foundation including a cushion cap and a pile foundation; the cushion cap (20) is provided with limited constraint displacement side walls arranged along the periphery of the cushion cap (20); a plurality of ultra-high performance concrete balls (30) are arranged on the top surface of the cushion cap between the limited constraint displacement side walls (22); a pier stud supporting table (11) fixedly connected into a whole with the pier stud (10) is arranged at the bottom of the pier stud (10), and is arranged on the ultra-high performance concrete balls (30).

Description

technical field [0001] The invention relates to bridges, in particular to a continuous rigid frame pier limited restraint shock absorbing structure which can improve the reliability of the seismic performance of the bridge. Background technique [0002] Since the 1990s, performance-based seismic design of buildings has become one of the mainstream directions of structural seismic research. Performance-based seismic design refers to determining the seismic performance target of the building according to the purpose and importance of the building and the seismic fortification water accuracy, and carrying out the seismic design of the building according to the target, so that the designed building has the expected performance under the earthquake that may occur in the future. Seismic performance and safety, so as to control the earthquake damage loss of the building within the expected range. However, how to restore the whole building, even the whole city and even the whole so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02
Inventor 杨平刘鹏陈克坚袁明曾永平杨国静
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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