爆炸荷载作用下礁沙地基钢塔架结构动力响应试验探究  

Experimental Study on Dynamic Response of Steel Tower Frame Structure on Reef Sand Foundation under Explosion Loading

作　　者：钟冬望[1,2] 戴炯岚 孟庆山 雷学文[1] 何理[1,2] 司剑峰[1,2] 杜泉 ZHONG Dong-wang;DAI Jiong-lan;MENG Qing-shan;LEI Xue-wen;HE Li;SI Jian-feng;DU Quan(Wuhan University of Science and Technology,Wuhan 430065,China;Hubei Province Intelligent Blasting Engineering Technology Research Center,Wuhan 430065,China;Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,State Key Laboratory of Geotechnical Mechanics and Engineering,Wuhan 430071,China)

机构地区：[1]武汉科技大学,武汉430065 [2]湖北省智能爆破工程技术研究中心,武汉430065 [3]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉430071

出　　处：《爆破》2021年第1期8-13,共6页Blasting

基　　金：国家自然科学基金项目(51574184、51404175);湖北省教育厅科学技术研究项目(Q20181109);冶金工业过程系统科学湖北省重点实验室开放基金项目(Y201717)。

摘　　要：爆炸荷载作用下礁砂地基钢塔架结构动力响应的研究,对我国的国防和岛礁工程建设具有重要的参考和现实意义。通过模型试验对不同礁砂地基类型、药量、爆心距等工况下钢塔架结构加速度动力响应信号进行测试,结合量纲分析与π定理,得到钢塔架结构模型的加速度动力响应计算公式,并利用试验所采集的数据对计算公式进行参数拟合,得出了在礁沙地基下钢塔架模型的加速度动力响应经验公式。The research on the dynamic response of steel tower frame structure on reef sand foundation under explosion loading has important practical significance for our national defense and reef engineering construction.In this work,the acceleration dynamic response signals of steel tower frame structure for different reef sand foundation types,explosive charges,distances to blasting center and other working conditions were tested through model tests.Combined with dimensional formula andπtheorem,the acceleration dynamic response calculation formula of the steel tower frame structure model is obtained.Then this formula is fitted by using the data collected from the tests to determine the related parameters.Finally,the acceleration dynamic response empirical formula of steel tower frame model on reef sand foundation is obtained.

关 键 词：礁砂地基 量纲分析 π定理 加速度动力响应 

分 类 号：TU391[建筑科学—结构工程]