- 摘 要
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(1 天津大學建筑工程學院，天津 300072； 2 中冶建筑研究總院有限公司，北京 100088)
［摘要］以某廠房直角突變式吊車梁應力測試為工程背景，由于廠房原有結(jié)構(gòu)存在限制，梁端頭截面高度不能做到足夠大，吊車噸位大、工作繁重，故對其直角突變式吊車梁支座受力性能進行了有限元分析。結(jié)合實際應力測試和有限元計算數(shù)據(jù)，比較和探討截面突變處的局部應力狀態(tài)和力學性能，進一步了解直角突變式吊車梁端頭的疲勞敏感區(qū)以及此類吊車梁的疲勞性能。
［關(guān)鍵詞］鋼吊車梁；直角突變式支座；有限元分析；疲勞
中圖分類號：TU391-2文獻標識碼：A文章編號：1002-848X(2012)03-0072-03
Mechanical property analysis on crane girders with right angle supports of varible section
Chang Haosong1,2，Jiang Xinliang1，Yang Jianping2，Ge Anxiang1(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China;2 Central Research Institute of Building and Construction of MCC, Beijing 100088, China)
Abstract:Based on the analysis of stress test on crane girders with right angle supports of varible section, finite element analysis on bearing capacities of crane girders with right angle supports of varible section was carried out. The crane girders have large tonnage and heavy workload, and for the limits of the original structure, the height of the first beam section can not be large enough. Compared with the actual test and finit element analysis data, stress states and mechanical properties of the local sections of mutations were analyzed. Fatigue sensitive areas and fatigue performances of crane girders with right angle varible section were studied.
Keywords:steel crane girder；right angle supports of varible section；finite element analysis； fatigue
作者簡介：常好誦，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：changhaosong8@163.com。
參考文獻
［1］盧鐵鷹，李輝．對鋼吊車梁直角式突變支座應力集中系數(shù)的研究［J］．重慶建筑工程學院學報，1994，16(2):25-32.
［2］盧鐵鷹，趙清，盧平．鋼吊車梁直角式突變支座疲勞性能試驗研究［J］．重慶建筑工程學院學報，1994，16(3):39-48.
［3］鄭廷銀，盧鐵鷹. 幾種鋼吊車梁變截面支座抗疲勞性能的對比分析［J］．重慶建筑大學學報，1996，18(4):77-84.
［4］鄭廷銀．鋼吊車梁變截面支座的疲勞性能研究［J］．建筑結(jié)構(gòu)，1997，27(6):9-13.
［5］路志浩，徐峰，何慶祥．變截面吊車梁圓弧式和直角式突變支座的受力性能分析［J］．結(jié)構(gòu)工程師，2010，26（1）：22-27.
［6］GB 50017—2003鋼結(jié)構(gòu)設計規(guī)范［S］.北京：中國計劃出版社，2003
