- 摘 要
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（1 青島黃海學院建筑工程學院， 青島 266427； 2 青島綠城建筑設(shè)計有限公司， 青島 266071）
［摘要］由于我國規(guī)范對異形柱下擴展基礎(chǔ)的沖切承載力計算并未做出明確的規(guī)定，國內(nèi)外對異形柱下擴展基礎(chǔ)的沖切性能的研究也較少。鑒于上述情況，采用MSC.Marc有限元軟件對某矩形柱下擴展基礎(chǔ)沖切試驗?zāi)Ｐ瓦M行精細化有限元模擬。在驗證模型正確的基礎(chǔ)上，對十字形、T形、L形柱下的擴展基礎(chǔ)進行建模分析，并提出異形柱基礎(chǔ)沖切承載力的計算公式，通過模擬結(jié)果、計算結(jié)果及相關(guān)研究成果的對比可知，異形柱基礎(chǔ)的數(shù)值模擬方法和沖切承載力計算方法均較為正確，可以為工程設(shè)計提供參考。
［關(guān)鍵詞］異形柱； 擴展基礎(chǔ)； 沖切承載力； 有限元模擬
中圖分類號：TU473文獻標識碼：A文章編號：1002-848X(2018)18-0113-04
Simulation study on punching shear behavior of extended foundation under the special\|shaped columns
Xu Xiufeng1, Kong Zi′ang2
(1 Architectural Engineering Institute， Qingdao Huanghai University, Qingdao 266427, China; 2 Qingdao Greentown Architectural Design Co., Ltd., Qingdao 266071, China)
Abstract:The calculation of the punching capacity of the extended foundation under the special-shaped column is not defined in China′s design code. And there are few studies on the punching performance of the extended foundation under the special-shaped column. In view of the above situation, MSC. Marc finite element software was used to carry out refined finite element simulation to the punching test model of the extended foundation under a rectangular column. On the basis of validating the correctness of the model, the extended foundations under the cross, T and L column were modeled and analyzed. The calculation formula of punching bearing capacity of special-shaped column foundation was proposed. The comparison of simulation, calculation and related research results shows that the simulation and calculation formula are correct, which can provide a reference for engineering design.
Keywords:special-shaped column; extended foundation; punching shear capacity; finite element simulation
*山東省高等學?？萍加媱濏椖浚↗16LG53）。
作者簡介：徐秀鳳，博士，講師，Email:xuxiufeng2014@126.com。
