- 摘 要
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（湖南大學土木工程學院， 長沙 410082）
［摘要］采用了LS-DYNA顯式算法對15片磚砌體墻進行了數(shù)值模擬。首先對已有試驗結(jié)果的9片帶圈梁和構(gòu)造柱的磚砌體墻進行了數(shù)值模擬，并將模擬結(jié)果與試驗結(jié)果進行對比，驗證了有限元分析參數(shù)選取的合理性。然后在此基礎(chǔ)上增設(shè)了6片磚砌體墻，研究了墻體開洞率及構(gòu)造柱對磚砌體墻承載力和抗倒塌能力的影響。結(jié)果表明，墻體開洞降低了磚砌體墻的整體承載能力和抗倒塌能力,且降低幅度隨墻體開洞率的增大而增大；構(gòu)造柱對提高磚砌體墻的承載能力和抗倒塌能力作用顯著。
［關(guān)鍵詞］磚砌體墻； 墻體開洞率； 構(gòu)造柱； 承載能力； 抗倒塌能力
中圖分類號：TU362文獻標識碼：A文章編號：1002-848X(2017)16-0019-05
Research on the collapse resistance capacity of brick masonry walls based on LS-DYNA
Zhang Wangxi， Yue Fenghua， Xiong Hao， Zheng Kayun
(College of Civil Engineering， Hunan University， Changsha 410082, China)
Abstract:Explicit algorithm of LS-DYNA was used to conduct numerical simulation of 15 pieces of brick masonry walls. Firstly, numerical simulation of 9 pieces of brick masonry walls with ring beams and structural columns were compared with the tested results to verify the accuracy of finite element analysis parameter. Then, 6 pieces of brick masonry walls were added to study the influence of hole ratio of walls and structural columns on the bearing capacity of brick masonry walls and the collapse resistance capacity of brick masonry walls. The results indicate that the overall bearing capacity of brick masonry walls and the collapse resistance capacity of brick masonry walls have been reduced because of wall with opening, what′s more, the reduction amplitude increases with the increase of hole ratio of walls. Structural columns have significant role in improving the bearing capacity of brick masonry walls and the collapse resistance capability of brick masonry walls.
Keywords:brick masonry wall; hole ratio of walls; structural column; bearing capacity; collapse resistance capacity
*國家自然科學基金資助項目（51578228），國家重點研發(fā)計劃專項資助項目 (2016YFC0701400)。
作者簡介:張望喜,博士,副教授,Email：wxizhang2000@hnu.edu.cn。
