现代应用物理2024，Vol.15Issue(3)：139-147,9.DOI:10.12061/j.issn.2905-6223.2024.031002
爆炸作用下浅埋直墙拱结构的毁伤评估方法与毁伤判据选择
Damage Evaluation Method and Damage Criterion Selection of Shallow Straight-Wall Arch Structure Under Explosion
摘要
Abstract
To put forward a reliable evaluation method for the damage of shallow buried arch structure under explosion,the structural damage evaluation method and damage criterion selection are discussed.By analyzing the test results of shallow buried explosion in soil and the finite element calculation results of reinforced concrete straight-wall arch,the failure of straight-wall arch structure under explosion is summarized into four main failure modes:bending failure,bending-shear failure,local collapse failure and local punching failure.The general idea of physical damage assessment of structural targets is summarized,and how to choose the damage criterion under different failure modes is discussed,which lays a foundation for the damage level assessment of structures.The mapping relationship between damage criterion and damage form and damage grade is summarized.The damage grade is divided according to the numerical simulation results of damage form,and the influence of different damage criteria on the accuracy of grade evaluation results is compared,which provides a reference for the selection of damage evaluation criteria.关键词
浅埋爆炸/直墙拱/物理毁伤评估/毁伤判据Key words
shallow buried explosion/straight-wall arch/physical damage assessment/damage criterion分类
数理科学引用本文复制引用
柏准,胡玉涛,钱秉文,李献,陈昊,张宁..爆炸作用下浅埋直墙拱结构的毁伤评估方法与毁伤判据选择[J].现代应用物理,2024,15(3):139-147,9.基金项目
国家目然科学基金资助项目(11802248) （11802248）
