接触面对驳船撞击桥墩动力响应的影响

doi:10.3969/j.issn.1674-0696.2018.09.02

重庆交通大学学报（自然科学版） ›› 2018, Vol. 37 ›› Issue (09): 7-15.DOI: 10.3969/j.issn.1674-0696.2018.09.02

接触面对驳船撞击桥墩动力响应的影响

邹毅松1，刘磊1，王银辉2，罗征2

(1. 重庆交通大学土木工程学院，重庆 400074； 2. 浙江大学宁波理工学院土木建筑学院，浙江宁波 315100)

收稿日期:2017-08-12 修回日期:2018-02-07 出版日期:2018-09-10 发布日期:2018-09-10
作者简介:邹毅松(1957—)，男，贵州余庆人，教授，硕士生导师，主要研究方向为桥梁工程。E-mail：zys200595@aliyun.com。通信作者：王银辉(1972—)，男，浙江诸暨人，教授，博士，硕士生导师，主要研究方向为桥梁结构动力安全性能和加固技术。E-mail:wangyh7244@nit.zju.edu.cn。
基金资助:
国家自然科学基金项目（51178429）；浙江省自然科学基金项目（LY18E08004）；宁波市科技创新团队项目（2011B81005）

Influence of Contact Surface on Dynamic Response of Bridge Pier Collided by Barge

ZOU Yisong1, LIU Lei1, WANG Yinhui2, LUO Zheng2

(1.School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China; 2. School of Civil Engineering and Architecture, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, Zhejiang, P. R. China)

Received:2017-08-12 Revised:2018-02-07 Online:2018-09-10 Published:2018-09-10

摘要/Abstract

摘要： 碰撞接触面形式对驳船撞击桥墩的动力响应存在影响。利用有限元分析方法，研究了驳船与桥墩分别以平面接触和弧面接触碰撞时的撞击力及撞深规律，讨论了碰撞响应差异的力学机理，分析了不同接触形式下桥墩结构的碰撞动力响应；根据驳船撞击作用下桥墩的最大动力响应等效原则，提出了可供桥墩设计所用的等效撞击力。结果表明：驳船撞击桥墩时呈现明显的瞬时弹性碰撞和后期非弹性碰撞2个阶段，碰撞接触面尺寸和形状对驳船撞击桥墩的弹性和非弹性碰撞响应均存在显著影响，最大撞击力不一定能直接作为桥墩的设计依据，而等效撞击力可以作为桥墩的设计参考值。

关键词: 桥梁工程, 船桥碰撞, 驳船, 接触面, 撞击力, 撞深

Abstract: The form of impact contact surface has influence on the dynamic response of barge-bridge pier collision. Based on the FEM, the impact force and crush depth rule caused by barge-pier collision with plane contact surface and arc contact surface were researched. Furthermore, the mechanical mechanism of the difference of collision response was discussed, and dynamic responses of pier structures in different contact conditions were analyzed. Finally, the equivalent impact force available for pier design was proposed according to the equivalent principle of maximum dynamic response of pier under barge impact. The results show that the process of barge-bridge pier collision observably presents two stages: instantaneous elastic impact stage and later inelastic impact stage. The size and shape of the impact contact surface have significant influence on the elastic and inelastic collision responses of the pier collided by barge. The maximum impact force may not be taken as the basis for pier design directly, but the equivalent impact force can serve as a reference for design of pier.

Key words: bridge engineering, ship-bridge collision, barge, contact surface, impact force, crush depth

中图分类号:

U 447

邹毅松1，刘磊1，王银辉2，罗征2. 接触面对驳船撞击桥墩动力响应的影响[J]. 重庆交通大学学报（自然科学版）, 2018, 37(09): 7-15.

ZOU Yisong1, LIU Lei1, WANG Yinhui2, LUO Zheng2. Influence of Contact Surface on Dynamic Response of Bridge Pier Collided by Barge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2018, 37(09): 7-15.

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接触面对驳船撞击桥墩动力响应的影响

Influence of Contact Surface on Dynamic Response of Bridge Pier Collided by Barge

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