反应位移法中剪切波速的确定研究  

Research on Determination of Shear Wave Velocity Based on Reaction Displacement Method

作　　者：王铭欣 黄成麟 牛永昌 孙维吉[3] Wang Mingxin;Huang Chenglin;Niu Yongchang;Sun Weiji(School of Architectural Engineering,Qingdao Hengxing University of Science and Technology,Qingdao,Shandong 266100,P.R.China;Qingdao Metro Planning and Design Institute Co.,Ltd,Qingdao,Shandong 266100,P.R.China;College of Mechanics and Engineering,Liaoning Technical University,Fuxin,Liaoning 123000,P.R.China)

机构地区：[1]青岛恒星科技学院建筑工程学院,山东青岛266100 [2]青岛市地铁规划设计院有限公司,山东青岛266100 [3]辽宁工程技术大学力学与工程学院,辽宁阜新123000

出　　处：《地下空间与工程学报》2024年第S01期155-162,共8页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金(51874166)。

摘　　要：地下结构抗震专项论证是地下结构设计的一个重要组成部分,通常采用反应位移法进行抗震计算。反应位移法中与抗震设计有关的3个因素分别为剪切力、惯性力、相对位移。而剪切力是由剪切波速决定的,但剪切波速的确定未明确具体规定和方法,如何进行剪切波速的确定,对抗震设计有重要影响。通过场地土层等效剪切波速法、加权平均值法、单层岩土层法分别进行剪切波速的确定,采用反应位移法计算分析3组弯矩值、剪力值、轴力值,分析表明采用反应位移法进行抗震计算时,剪切波速通过场地土层等效剪切波速法确定更合理,研究成果为地下结构抗震设计中剪切波速的确定提供了依据。Seismic special demonstration of underground structrue is an important part of underground structrue design,usually use reaction displacement method to calculate.The three factors related to anti-seismic design in reaction displacement method are shear force,inertia force,and relative displacement.And shear force is determinded by shear wave velocity,but there are no specific regulations or methods for shear wave velocity,how to define shear wave velocity is significant for anti-seismic design.Define shear wave through field soillayer equivalent share wave velosity method,weighted average method and single Rock or soil layers method,use reaction displacement method calculate and analysis bending moment value,shear force and axial force value,the analysis shows it is more reasonable to define shear wave through field soillayer equivalent share wave velosity method when use reaction displacement method to anti-seismic design,field soillayer equivalent share wave velosity method is a basis for define shear wave in undergroud structrue anti-seismic design and have engineering significant.

关 键 词：反应位移法 剪切波速 土层等效剪切波速法 地下车站 

分 类 号：TU91[建筑科学—建筑理论]