震害遗址保护性加固原则探讨及实例介绍
|
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。
This paper discusses the principle of the protective retrofit of the earthquake damaged structure ruins.Considering that the function of the earthquake damaged structure ruins is retaining earthquake damage situation for scientific investigation and tourist visit,recommended protective retrofit principle should be able to reflect the damage phenomenon,keep the site structure stable and prevent the site from collapsing during frequent earthquake.Thus the design reliability of the protective retrofit can be slightly lower than that of new structure.Damage level of the structural elements of the site should be estimated and be taken into account during the design of the protective retrofit components.Then the protection retrofit design of an earthquake damaged stone arch bridge in Bailu Town,Sichuan Province,was presented as a case study:structure size was estimated by seismic damage investigation,FEA was carried out by ABAQUS,retrofit plan was drawn up in combination with the bridge site character.FEA shows that the retrofit construction can strengthen the earthquake resistant capability of the site structure significantly and meet the protective retrofit requirement.
This paper discusses the principle of the protective retrofit of the earthquake damaged structure ruins.Considering that the function of the earthquake damaged structure ruins is retaining earthquake damage situation for scientific investigation and tourist visit,recommended protective retrofit principle should be able to reflect the damage phenomenon,keep the site structure stable and prevent the site from collapsing during frequent earthquake.Thus the design reliability of the protective retrofit can be slightly lower than that of new structure.Damage level of the structural elements of the site should be estimated and be taken into account during the design of the protective retrofit components.Then the protection retrofit design of an earthquake damaged stone arch bridge in Bailu Town,Sichuan Province,was presented as a case study:structure size was estimated by seismic damage investigation,FEA was carried out by ABAQUS,retrofit plan was drawn up in combination with the bridge site character.FEA shows that the retrofit construction can strengthen the earthquake resistant capability of the site structure significantly and meet the protective retrofit requirement.
引文
[1]陈龙,霍怡,阎琴.唐山市地震遗址的生态保护与利用方法研究[J].山西建筑.2008.3.CHEN Long,HUO Yi,YAN Qin.Research on the ecological protection and utility methods of the earthquake site of Tangshan[J].Shanxi Archi-tecture.2008.3.
[2]HIRAZAWA Y.Activities of the disaster reduction and human renovation institution(DRI)for the human resource development[J].InternationalWorkshop on Emergency Response and Rescue.2005:n1-n2.
[3]王俊雄.记忆的距离-评邱文杰的921地震教育园区设计[J].时代建筑.2008.5:50-57.WANG Chunhsiung.The distance of memory-some comments on 921 earthquake museum by Jay W.CHIU[J].Time Architecture.2008,5,50-57.
[4]李晓江,张兵,束晨阳,张健.回望生命的光辉—北川地震遗址博物馆及震灾纪念地规划的思考[J].城市规划.2008.7.LI Xiaojiang,ZHANG Bing,SHU Chenyang,ZHANG Jian.City Planning Review[J].2008.7.
[5]杨宗林,朱本珍,张小兵.玉树地震遗址补强加固方法[J].铁道工程学报,2011,7:48-52.YANG Zonglin,ZHU Benzhen,ZHANG Xiaobing.Reinforcement method for Yushu earthquake ruins[J].Journal of Railway Engineering Socie-ty.2011,7:48-52.
[6]公路桥梁抗震设计细则(JTGTB02-01-2008).北京:人民交通出版社,2008.Guidelines for Seismic Design of Highway Bridges(JTGTB02-01-2008).Beijing:China Communications press,2008.
[7]公路圬工桥涵设计规范(JTG D61-2005).北京:人民交通出版社,2005.Code for Design of Highway Masonry Bridges and Culverts(JTG D61-2005).Beijing:China Communications press,2005.
[8]建筑抗震设计规范(GB50011-2010).北京:中国建筑工业出版社.2010.Code for seismic design of buildings(GB 50011-2010),Beijing:China building industry press,2010.
[9]砌体结构设计规范(GB50003-2011).北京:中国建筑工业出版社,2011.Code for design of masonry structures(GB50003-2011),Beijing:China building industry press,2011.
[2]HIRAZAWA Y.Activities of the disaster reduction and human renovation institution(DRI)for the human resource development[J].InternationalWorkshop on Emergency Response and Rescue.2005:n1-n2.
[3]王俊雄.记忆的距离-评邱文杰的921地震教育园区设计[J].时代建筑.2008.5:50-57.WANG Chunhsiung.The distance of memory-some comments on 921 earthquake museum by Jay W.CHIU[J].Time Architecture.2008,5,50-57.
[4]李晓江,张兵,束晨阳,张健.回望生命的光辉—北川地震遗址博物馆及震灾纪念地规划的思考[J].城市规划.2008.7.LI Xiaojiang,ZHANG Bing,SHU Chenyang,ZHANG Jian.City Planning Review[J].2008.7.
[5]杨宗林,朱本珍,张小兵.玉树地震遗址补强加固方法[J].铁道工程学报,2011,7:48-52.YANG Zonglin,ZHU Benzhen,ZHANG Xiaobing.Reinforcement method for Yushu earthquake ruins[J].Journal of Railway Engineering Socie-ty.2011,7:48-52.
[6]公路桥梁抗震设计细则(JTGTB02-01-2008).北京:人民交通出版社,2008.Guidelines for Seismic Design of Highway Bridges(JTGTB02-01-2008).Beijing:China Communications press,2008.
[7]公路圬工桥涵设计规范(JTG D61-2005).北京:人民交通出版社,2005.Code for Design of Highway Masonry Bridges and Culverts(JTG D61-2005).Beijing:China Communications press,2005.
[8]建筑抗震设计规范(GB50011-2010).北京:中国建筑工业出版社.2010.Code for seismic design of buildings(GB 50011-2010),Beijing:China building industry press,2010.
[9]砌体结构设计规范(GB50003-2011).北京:中国建筑工业出版社,2011.Code for design of masonry structures(GB50003-2011),Beijing:China building industry press,2011.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心