|本期目录/Table of Contents|

[1]王鹏,李智.匝道桥桥墩地震作用下的弹塑性研究[J].公路与自然,2019,26(03):26-30.
 WANG Peng,LI Zhi.Study on Seismic Elasticplastic of Ramp Bridge Pier[J].Highway & Nature,2019,26(03):26-30.
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匝道桥桥墩地震作用下的弹塑性研究()
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《公路与自然》[ISSN:/CN:]

卷:
第26卷
期数:
2019年03
页码:
26-30
栏目:
桥隧工程
出版日期:
2019-06-21

文章信息/Info

Title:
Study on Seismic Elasticplastic of Ramp Bridge Pier
作者:
王鹏李智
中交第一公路勘察设计研究院有限公司,陕西 西安 710065
Author(s):
WANG PengLI Zhi
CCCC First Highway Consultants Co.,Ltd. Xi’an 710075,China
关键词:
匝道桥地震作用弹塑性研究
Keywords:
ramp bridge earthquake action elasticplastic study
分类号:
U442.5
DOI:
-
文献标志码:
A
摘要:
通过建模对比,对匝道桥桥墩进行了地震作用下的弹塑性研究,结果表明:桥墩底部塑性铰区的延性设计在桥墩地震作用下的滞回耗能作用最为重要;桥墩的强度设计和墩底塑性铰延性设计应结合一联桥梁桥墩刚度进行差异化设计更符合匝道桥桥墩在地震作用下的受力特点;地震作用下桥墩的破坏,很大部分是地震过程损伤累加效应的结果。因此,需进一步研究桥墩在地震力作用下的内力、位移过程及损伤累加效应与结构材料强度、抗震设计方法间的关系,以便设计出抗震能力强,有足够强度与延性的结构。
Abstract:
In this paper, the elasticplastic study of the bridge piers under the earthquake is carried out by modeling and comparison. The results show that the ductility design of the plastic hinges at the bottom of the pier is very important in the hysteretic energy of the piers. The strength design of the piers and the plastic hinge design of the pier bottom should be combined with the stiffness of the bridge pier to make the design of the bridge pier under the action of earthquake.The damage of the pier under the action of earthquake is a large part of the result of the cumulative effect of the damage in the earthquake process. Therefore, it is necessary to further study the relationship between internal force, displacement process and damage accumulation effect of bridge pier under seismic force and structural material strength and seismic design method, in order to design a structure with strong earthquake resistance and sufficient strength and ductility.

参考文献/References:

[01]范立础, 方红. 再论城市高架桥抗震设计对策[A]. 中国土木工程学会第八届年会论文集[C]. 北京: 清华大学出版社, 1998: 259-264

备注/Memo

备注/Memo:
更新日期/Last Update: 2019-06-17