震害遗址保护性加固原则探讨及实例介绍
发布时间：2019-06-09 22:01
【摘要】：探讨了震害遗址保护性加固的设计原则。考虑到震害遗址的功能应能反映震害状况,并可以供科考参观,建议加固原则为要尽量避免影响震害现象,保持遗址结构的稳定承重和在常遇地震下不倒塌。保护性加固工程的安全冗余度可略低于常规结构。加固设计应合理估算原结构构件的震损程度,并以此作为加固设计的依据。接着,介绍了四川白鹿镇中法友谊桥遗址的保护性加固设计:通过震害调查确定结构的基本尺寸,采用ABAQUS有限元实体建模进行了遗址结构的受力分析,结合遗址结构特点制定了加固方案。分析表明,加固方案显著加强了拱桥遗址的抗震承载能力,能够满足震害遗址的保护性加固要求。
[Abstract]:The design principle of protective reinforcement of earthquake damaged sites is discussed. Considering that the function of the earthquake damage site should reflect the earthquake damage condition and can be visited by scientific examination, it is suggested that the reinforcement principle should avoid the earthquake damage phenomenon as far as possible, keep the stable load bearing of the site structure and not collapse under the common earthquake. The safety redundancy of protective reinforcement project can be slightly lower than that of conventional structure. The seismic damage degree of the original structural members should be reasonably estimated in the reinforcement design, which should be used as the basis for the reinforcement design. Then, the protective reinforcement design of Sino-French Friendship Bridge site in Bailu Town, Sichuan Province is introduced. The basic size of the structure is determined by earthquake damage investigation, and the force analysis of the site structure is carried out by using ABAQUS finite element entity modeling. According to the structural characteristics of the site, the reinforcement scheme is worked out. The analysis shows that the reinforcement scheme significantly strengthens the seismic bearing capacity of arch bridge sites and can meet the protective reinforcement requirements of earthquake damaged sites.
【作者单位】： 中国地震局工程力学研究所 中国地震局地震工程与工程振动重点实验室;
【基金】：中国地震局工程力学研究所基本科研业务费专项(2011C03) 国际科技合作计划项目(2010DFA71240) 国家自然科学基金青年基金项目(51108433) 黑龙江省博士后资助项目(LBH-Z11001)
【分类号】：K878;TU746.3
本文编号：2495933
[Abstract]:The design principle of protective reinforcement of earthquake damaged sites is discussed. Considering that the function of the earthquake damage site should reflect the earthquake damage condition and can be visited by scientific examination, it is suggested that the reinforcement principle should avoid the earthquake damage phenomenon as far as possible, keep the stable load bearing of the site structure and not collapse under the common earthquake. The safety redundancy of protective reinforcement project can be slightly lower than that of conventional structure. The seismic damage degree of the original structural members should be reasonably estimated in the reinforcement design, which should be used as the basis for the reinforcement design. Then, the protective reinforcement design of Sino-French Friendship Bridge site in Bailu Town, Sichuan Province is introduced. The basic size of the structure is determined by earthquake damage investigation, and the force analysis of the site structure is carried out by using ABAQUS finite element entity modeling. According to the structural characteristics of the site, the reinforcement scheme is worked out. The analysis shows that the reinforcement scheme significantly strengthens the seismic bearing capacity of arch bridge sites and can meet the protective reinforcement requirements of earthquake damaged sites.
【作者单位】： 中国地震局工程力学研究所 中国地震局地震工程与工程振动重点实验室;
【基金】：中国地震局工程力学研究所基本科研业务费专项(2011C03) 国际科技合作计划项目(2010DFA71240) 国家自然科学基金青年基金项目(51108433) 黑龙江省博士后资助项目(LBH-Z11001)
【分类号】：K878;TU746.3
【二级参考文献】
相关期刊论文 前2条
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2 杨文斌,韩世文,张敬军,宋伟;地震应急避难场所的规划建设与城市防灾[J];自然灾害学报;2004年01期
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