Underground blast effects on structural pounding

作     者：Muhammed Zain Kangda Nilesh Mate Sachin Bakre Muhammed Zain Kangda;Nilesh Mate;Sachin Bakre

作者机构：School of Civil EngineeringREVA UniversityBengaluru 560064India Amrutvahini College of EngineeringSangamnerAhmednagar 422608India Department of Applied MechanicsVisvesvaraya National Institute of TechnologyNagpur 440010India 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2022年第21卷第3期

页      面：617-639页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：structural pounding building positions MDOF stick system stiffness factor blast ground motion 

摘      要：In the present study,actual three-dimensional structures are converted into a stick model of multi degree of-freedom(MDOF)systems for understanding the macro-behavior of *** study investigates the performance of three closely spaced,adjacent G+10,fixed-base MDOF systems with the mass aligned at the same levels and subjected to accidental underground blast *** acceleration time history of underground blast loading is generated based on past empirical *** blast charge weight varies from 10 to 75 t while keeping the charge distance constant(R=100 m).The entire formulation is solved with the MATLAB solver,using the state space form *** cases are considered,based on changing the position of the three stick *** first case considered left building rigid,middle building moderate rigid,and right building *** second assumed left building flexible,middle building rigid,and right building moderate *** third examined the left building as moderate rigid,the middle building as flexible,and the right building *** analysis of the results shows that the arrangement with low stiffness,high stiffness,and moderately stiff buildings placed to the left,middle,and right side,respectively,yields minimum structural response when compared to the other two combinations.