柔性地面条件下冲击荷载计算模型分析  

Analysis of impact load calculation model under flexible ground condition

作　　者：刘付威 余沛[1] 高素芹 LIU Fu-wei;YU Pei;GAO Su-qin(School of Civil Engineering,Shangqiu Institute of Technology,Shangqiu 476000,China)

机构地区：[1]商丘工学院土木工程学院,河南商丘476000

出　　处：《佛山科学技术学院学报（自然科学版）》2020年第3期49-54,共6页Journal of Foshan University(Natural Science Edition)

基　　金：河南省科技攻关项目(192102310510);商丘工学院2018年度科研项目(2018XKQ06)。

摘　　要：基于强夯动应力理论,提出了建筑物塌落冲击自由场动应力计算模型,并与试验结果进行对比验证,表明模型计算结果最大误差在8%左右,而且能较好地表示动应力随深度的衰减规律。With the acceleration of urbanization,the impact of blasting demolition on the safety of shallow underground structures has become a major problem related to the sustainable development of cities.Based on the theory of strong ramming dynamic stress,a free field dynamic stress calculation model for collapse impact of buildings is put forward,which is verified by comparison with the test results,which shows that the maximum error of the model is about 8%,and the attenuation law of dynamic stress with depth can be expressed well.

关 键 词：柔性地面 冲击荷载 动载计算 

分 类 号：TU312[建筑科学—结构工程]