钢管混凝土柱-软钢消能元件组合高墩桥梁试设计

卓卫东; 王志坚; 廖丽云; 蔡哲罕; 王宏达

doi:10.13409/j.cnki.jdpme.2020.04.001

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钢管混凝土柱-软钢消能元件组合高墩桥梁试设计

更新时间：2025-09-25

- 钢管混凝土柱-软钢消能元件组合高墩桥梁试设计
- Trial Design of Bridge with Concrete-filled Steel Tubular Column and Energy Dissipating Mild Steel Plate Composite Tall Piers
- 防灾减灾工程学报 2020年40卷第4期页码：483-489
- 作者机构：
  
  1.福州大学土木工程学院，福建福州 350108
  2.福建省交通规划设计院有限公司，福建福州 350043
- 作者简介：
  
  卓卫东（1966-），男，教授，博导，博士。主要从事桥梁与结构工程抗震研究。Email:zhuowd@fzu.edu.cn
- 基金信息：
  
  国家自然科学基金项目(51878180);福建省交通运输科技发展计划项目(201803)
- DOI：10.13409/j.cnki.jdpme.2020.04.001
  中图分类号： U442.55
- 收稿：2019-07-01，
  
  修回：2019-09-17，
  
  纸质出版：2020-08-15
- 稿件说明：
移动端阅览
卓卫东,王志坚,廖丽云等.钢管混凝土柱-软钢消能元件组合高墩桥梁试设计[J].防灾减灾工程学报,2020,40(04):483-489.

ZHUO Weidong,WANG Zhijian,LIAO Liyun,et al.Trial Design of Bridge with Concrete-filled Steel Tubular Column and Energy Dissipating Mild Steel Plate Composite Tall Piers[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(04):483-489.
卓卫东,王志坚,廖丽云等.钢管混凝土柱-软钢消能元件组合高墩桥梁试设计[J].防灾减灾工程学报,2020,40(04):483-489. DOI： 10.13409/j.cnki.jdpme.2020.04.001.

ZHUO Weidong,WANG Zhijian,LIAO Liyun,et al.Trial Design of Bridge with Concrete-filled Steel Tubular Column and Energy Dissipating Mild Steel Plate Composite Tall Piers[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(04):483-489. DOI： 10.13409/j.cnki.jdpme.2020.04.001.

摘要

为显著提高强震区高墩桥梁结构的抗震性能，基于可恢复功能抗震设计原理，提出钢管混凝土柱⁃软钢消能元件组合箱形截面高墩桥梁的设计概念。以山区某常规RC箱形截面高墩连续刚构桥为工程背景，进行新型组合截面高墩桥梁试设计；分析了新型组合截面高墩桥梁在作用基本组合下的静力性能和地震组合下的抗震性能，并对比分析了其与常规RC箱形截面高墩桥梁在E2地震作用下的抗震性能。结果表明：①作用基本组合下，新型组合截面高墩桥梁能够很好地满足结构承载力和稳定性要求；②在E2地震作用下，常规RC箱形截面高墩桥梁出现中等程度的破坏，而新型组合截面高墩桥梁仅有可更换的软钢消能元件发生塑性变形，表明其具有地震可恢复性；③在E2地震作用下，新型组合截面高墩桥梁的地震位移反应明显小于常规RC箱形截面高墩桥梁的地震位移反应。

Abstract

To improve the seismic performances of bridges with very tall piers in high seismicity area

design concept of the bridge with very tall piers

which is composed mainly of concrete-filled steel tubular (CFST) columns and energy dissipating mild steel plates (EDMSP)

is proposed based on the principle of earthquake restorable structures. Trial design of a bridge with the proposed innovative composite box section tall piers is carried out based on a typical continuous rigid frame highway bridge with tall RC box section piers. The static and seismic performances of the bridge according to fundamental loading combination and E2 level seismic action are analyzed respectively. The seismic performance of the designed bridge under E2 level seismic action is compared with the bridge with conventional RC box section piers. The results show that: (a) under fundamental loading combination

the bridge with innovative composite box section piers can well meet the requirements of structural strength and stability; (b) under E2 level seismic action

the conventional designed bridge experiences medium damage in the piers

while only the replaceable EDMSP elements of the innovative designed bridge undergo plastic deformation

indicating the innovative designed bridge is earthquake restorable; (c) the seismic displacement responses of the innovative designed bridge is significantly smaller than that of the conventional designed bridge under E2 level seismic action.

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references

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