南京工业大学学报（自然科学版）2025，Vol.47Issue(5)：551-559,9.DOI:10.3969/j.issn.1671-7627.2025.05.009
爆炸荷载下钢筋混凝土结构连续倒塌分析的简化模型
Simplified model for progressive collapse analysis of reinforced concrete structures under blast loading
摘要
Abstract
To address the high costs of blast testing for reinforced concrete(RC)structures and the low computational efficiency of high-fidelity numerical models,this study develops an efficient numerical model for the progressive collapse of RC structures based on the modified compression field theory.The model integrates beam-column analysis models,shell element models,and macroscopic joint models,enabling accurate representation of damage and shear deformation of structural components under blast loading,as well as the transfer of internal forces and deformations between adjacent members.The RC structural analysis model accurately captures the damage mechanism of structural members under blast loads and highlights the influence of compressive arch action(CAA)and tensile catenary action(TCA)effects on the collapse resistance during progressive failure.Furthermore,the proposed efficient numerical model achieves a balanced improvement in both analysis accuracy and computational efficiency for simulating the progressive collapse process of RC structures under blast loading.关键词
爆炸荷载/钢筋混凝土(RC)结构/宏观模型/连续倒塌/计算效率Key words
blast loading/reinforced concrete(RC)structure/macroscopic model/progressive collapse/computational efficiency分类
建筑与水利引用本文复制引用
蒋认,陈祺涛,彭楚凡..爆炸荷载下钢筋混凝土结构连续倒塌分析的简化模型[J].南京工业大学学报（自然科学版）,2025,47(5):551-559,9.基金项目
国家自然科学基金(52568074) （52568074）
江西省交通运输厅青年科技项目(2025QN002) （2025QN002）
