雙連梁受力性能分析
丁永君1， 李端2
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（1天津大學建筑設計規(guī)劃研究總院，天津300072；2天津大學建筑工程學院，天津300072）[摘要] 本文借助大型通用有限元軟件ANSYS分析研究了在不同跨高比情況下雙連梁的受力性能。文中共設計了五組模型，跨高比分別為2.4、2.7、3.0、3.4、4.0。分析結果表明：隨著連梁跨高比的逐漸增大各模型連梁所承擔的總內力均逐漸減小，結構頂點的位移逐漸增大，剛度逐漸減小。同時，在每個模型中，上梁所承擔的剪力比下梁小，上梁所承擔的軸力（絕對值）比下梁大，上梁與下梁所承擔的彎矩基本相同。[關鍵詞] 跨高比;受力分析;有限元中圖分類號：TU375.1 文獻標識碼：A 文章編號：1002-848X(2013)S1-0637-03Analysis on the mechanical properties of dual binding beamsDing Yongjun1, Li Duan2(1 Tianjin University Research Institute of Architecture Design and Urban Planning, Tianjin 300072,China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072,China)Abstract: In this paper, with the finite element software ANSYS to study the stress performance of the dual binding beams in different span-depth ratio.We’ve designed five sets of model, the span-depth ratio were 2.4, 2.7, 3, 3.4, 4.The results show that: with the span-depth ratio of coupling beam increases gradually, the total force that each model coupling beams assumed are decrease gradually, and the vertex displacement of each structure increase gradually, stiffness decreases gradually. Meanwhile, in each model, the shear that the upper beam bears is less than the lower beam, and the axial force (absolute value) that the upper beam bears is more than the lower beam, the moments borne by the upper and lower beam are substantially the same.Keywords: dual binding beams; span-depth ratio; force analysis; finite element
