场地特征周期插值方法探讨与应用  

Discussion and application of site characteristic period interpolation method

作　　者：张敏 肖湘 周健 卢丽娟 ZHANG Min;XIAO Xiang;ZHOU Jian;LU Lijuan(Kunming Xinzhengdongyang Architectural Design Co.,Ltd,Kunming 650040,China;Kungong Fanya Design Group Co.,Ltd,Kunming 650224,China;Yunnan Development Programming Design Institute Co.,Ltd.,Kunming 650217,China;School of Architecture and Electrical Engineering,Hezhou University,Hezhou 542899,China)

机构地区：[1]昆明新正东阳建筑工程设计有限公司,昆明650040 [2]昆明理工泛亚设计集团有限公司,昆明650224 [3]云南开发规划设计院有限公司,昆明650217 [4]贺州学院建筑与电气工程学院,贺州542899

出　　处：《建筑结构》2023年第22期112-117,共6页Building Structure

摘　　要：场地特征周期是一项重要的地震动参数,对抗震设计的影响较大。研究了参考文献中的各类插值计算方法,并基于《建筑抗震设计规范》(GB 50011—2010)的连续化插入方案及附图,给出了各地震分组条件下的特征周期等值线图以及覆盖层厚度和剪切波速分界线±15%范围内所对应的特征周期数值速查表格,简化了插值过程。同时补充了剪切波速超过700m/s的特征周期插值数值,根据规范附图校准了连续化插入方案及等值线图,讨论了特征周期值不合理的反向跳跃现象和处理方法。The site characteristic period is an important ground motion parameter that has great influence on seismic design.Various interpolation calculation methods in the references were studied,and based on the continuous insertion scheme and the attached drawing of Code for seismic design of buildings(GB 50011—2010),the characteristic period contour map under the condition of earthquake grouping and the quick look-up table of the corresponding periodic values within the range of±15%near the overburden thickness and shear wave velocity boundaries were obtained,which could simplify the interpolation process.At the same time,the interpolation value of characteristic period with shear wave velocity exceeding 700m/s was supplemented,the continuous insertion scheme and contour map were calibrated according to the attached drawing of the design code,the illogical reverse jumping phenomena of characteristic period value and their solution was discussed.

关 键 词：场地特征周期 插值计算 覆盖层厚度 等效剪切波速 

分 类 号：TU318.4[建筑科学—结构工程]