山区河流大水位差直立式框架码头静力弹塑性计算  

Static elastoplastic calculation of vertical frame wharf with large water level difference in mountainous river

作　　者：邓方明 文训科 谢峰 DENG Fang-ming;WEN Xun-ke;XIE Feng(Sichuan Minjiang Port Navigation Power Development Co. Ltd., Leshan 614001, China;Sichuan Communication Surveying & Design Institute Co. Ltd., Chengdu 610017, China)

机构地区：[1]四川岷江港航电开发有限责任公司,乐山614001 [2]四川省交通勘察设计研究院有限公司,成都610017

出　　处：《水道港口》2022年第2期234-239,共6页Journal of Waterway and Harbor

基　　金：国家重点研发计划项目(2016YFC0802204)。

摘　　要：文章以山区河流大水位差直立式框架码头结构为研究对象,结合《建筑抗震设计规范》中基于结构性能的抗震设计要求,利用SAP2000软件,采用Pushover分析方法,通过三种侧向加载方式,计算得出了码头框架结构底部剪力-位移关系曲线、性能点和层间位移关系曲线,分析了框架结构在破坏过程中主要构件塑性铰的演变过程和状态,并将计算结果与设定的抗震性能目标进行比较。结果表明,该种框架结构设计满足抗震设防目标,在罕遇地震作用下,框架柱之间的联系梁、地梁有效地消耗地震能量,确保码头框架结构的竖向稳定。In this paper,the vertical frame wharf structure with large water level difference in mountainous river is taken as the research object.Combined with the seismic design requirements based on structural performance in code for seismic design of buildings,the shear displacement relationship curve,performance point and inter-story displacement relationship curve at the bottom of wharf frame structure were calculated by using SAP2000 software and Pushover analysis method through three lateral loading modes.The evolution process and state of the plastic hinge of the main components in the instability process of the frame structure were analyzed,and the calculation results were compared with the set seismic performance objectives.The results show that the design of this kind of frame structure meets the seismic fortification goal.Under the rare earthquake,the connection beam and ground beam between the frame columns can effectively consume the seismic energy and ensure the vertical stability of the wharf frame structure.

关 键 词：山区河流 框架码头 抗震性能 PUSHOVER分析 塑性铰 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]