基于离心模型的高层建筑物爆破拆除倒塌过程及相似性研究
Study on Collapse Process and Similarity of Blasting Demolition of High-Rise Buildings Based on Centrifugal Model
DOI: 10.12677/hjce.2026.156156, PDF,   
作者: 辛光明:烟台大地爆破工程有限公司,山东 烟台;董昌盛:山东省公安厅治安管理总队,山东 济南
关键词: 高层建筑物爆破拆除离心相似律倒塌过程High-Rise Buildings Blasting Demolition Centrifugal Similitude Law Collapse Process
摘要: 本文通过π定理推导出适用于考虑重力效应的相似理论,结合某市中心城区超高层大楼爆破拆除工程,基于LS-DYNA数值模拟技术,依据相似关系建立1/20和1/100的高层建筑物缩比模型,对高层建筑物爆破拆除的倒塌过程的原型和尺寸缩比模型进行模拟,验证了建筑物倒塌过程中的楼体速度和时间的相似关系,为高层建筑物爆破拆除倒塌过程的离心模型研究提供了理论参考。
Abstract: In this paper, the similarity theory considering gravitational effects is derived based on the Buckingham π theorem. Taking the blasting demolition project of a super high-rise building in the central urban area of a city as the engineering background, two scaled high-rise building models with geometric scale ratios of 1/20 and 1/100 are established following similarity laws with the aid of LS-DYNA numerical simulation. Numerical simulations on the collapse process induced by blasting demolition are conducted for both the prototype structure and the two scaled models. The similarity criteria for structural velocity and collapse duration during building collapse are verified. This study offers theoretical references for centrifugal model investigations on the collapse behavior of high-rise buildings subjected to blasting demolition.
文章引用:辛光明, 董昌盛. 基于离心模型的高层建筑物爆破拆除倒塌过程及相似性研究[J]. 土木工程, 2026, 15(6): 65-73. https://doi.org/10.12677/hjce.2026.156156

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