汶川地震后对我国结构工程抗震几点思考.pdfVIP

25 11 Vol25 o11 2008 11 Journal of Highway andTransportation Research and Development ov2008 :(2008) 1 2 1 1 1 王克海, 孙永红, 韦 韩, 李 茜 , 姜震宇 ( 1, 100088; 2, 100076) : 通过前两位作者前后两次赴汶川地震灾区进行考察调研, 获取了震害的第一手资 首先阐述了汶川地震的特 点, 分析了结构工程特别是桥梁工程震害产生的原因; 研究了桥型与抗震性能的关系, 提出在不同场地和不同条件下 应采用不同的桥型高烈度地震区的适宜桥跨结构型式应进行深入研究; 探讨了桥梁结构的抗震设防标准问题, 建议 对重要性公路桥梁, 采用中震不坏的设计原则; 讨论了概念设计与抗震构造措施对桥梁抗震的重要性; 提出应重视减 隔震耗能技术在桥梁工程中的应用; 根据国外的经验, 建议对桥梁结构的抗震评价与加固技术进行深入的探讨和研 究; 探讨了我国在灾害的应急决策机制防灾减灾政策和技术研究等方面存在的问题; 最后, 针对目前我国结构抗震 中存在的问题, 提出了相应的建议 : 桥梁工程; 汶川地震; 结构工程; 抗震; 抗震设防标准 + : U4425 5 : A Comments on Seismic Strengthening for Structural Engineering in China after Wenchuan Earthquake 1 2 1 1 1 WA G Kehai , SU Yonghong , WEI Han , LI Qian , JIA G Zhenyu ( 1Research Institute of Highway, Ministry of Communications, Beijing 100088, China; 2Department ofHighway, Ministry of Transport, Beijing 100076, China) Abstract: The first hand information has obtained by the first two authers twice investigations in Wenchuan Earthquake districtFirst, the characteristics of the Wenchuan Earthquake were introducedSecond, the damage reasons of the structures, especially the bridges, were analyzedThird, the relationship between bridge type and antiseismic performancewas givenIt was put forward that the proper types of bridges which suitable for different conditions should be adopted and the proper type of bridge structure for the highintens