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（中船第九設(shè)計研究院工程有限公司， 上海 200063）
［摘要］以結(jié)構(gòu)倒塌數(shù)值模擬的理論為基礎(chǔ)，選擇基于顯式動力學(xué)的有限單元法作為數(shù)值計算方法，結(jié)合單榀框架倒塌試驗及十層框架結(jié)構(gòu)算例，分別建立并設(shè)置了線框、整體式和分離式模型，并采用拆除構(gòu)件法對三個模型進(jìn)行倒塌數(shù)值模擬方法的研究，分別從多個方面對結(jié)果進(jìn)行比較，驗證了數(shù)值模擬方法的合理性以及三種模型各自的適用性。同時，針對繁復(fù)的結(jié)構(gòu)倒塌模擬前處理過程，采用VC++語言開發(fā)了可導(dǎo)出ANSYS/LS-DYNA結(jié)構(gòu)倒塌線框模型APDL文本的MFC程序，以期為結(jié)構(gòu)倒塌數(shù)值模擬提供便利。
［關(guān)鍵詞］倒塌； 有限單元法； 顯式動力學(xué)； LS-DYNA； 拆除構(gòu)件法； 整體式模型； 分離式模型； 前處理二次開發(fā)
中圖分類號：TU375-4， TU317-1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)24-0038-08
Research on numerical simulation method of frame structure collapse based on explicit dynamics
Hu Kai, Jiang Li
(China Shipbuilding NRDI Engineering Co., Ltd., Shanghai 200063, China)
Abstract:According to the theory of collapse numerical simulation, the finite element method based on explicit dynamics was chosen as the numerical calculation method. Combined with the single-span RC frame collapse test and the calculating example of a ten-layer frame structure, the frame model, integrated model and separate model were set respectively. Dismantling component method was used to study the numerical simulation method of structural collapse for three models respectively. With the comparison of several aspects of the results, the rationality of the numerical simulation method and the applicability of the three models were verified respectively. At the same time, for the complex pre-treatment process to the numerical simulation of structural collapse, VC++ language was used to develop an MFC program to export APDL file of the structure collapse frame model in ANSYS/LS-DYNA, in order to offer convenience to the numerical simulation process of structure collapse.
Keywords:collapse; finite element method; explicit dynamics; LS-DYNA; dismantling component method; integrated model; separate model; secondary development of pre-treatment
作者簡介：胡凱，碩士，工程師，Email：whocannet@163.com。
