钢管混凝土柱钢梁节点受力性能分析-结构工程专业论文.docxVIP

Abstract This paper is based on the research of an improVed concrete—n11ed steel tube(CFT) beam-column joint with T-stif诧ner plates which was carried on by several scholars Kyung-jae shin，Yong-ju Kim etc in Hanyang uniVersity of Korea By using the three—dimensional finite elemem soRware ANSYS simulate the calculation．In allusion to idiographic instance and used three-dimensional entity element， established three—dimensional model for concrete—nlled steel tube(cFT)column to H岫eam joint with T-stifrener plates Through choosing element and mesh element reasonably’the stress distribution ofjoint zone was analyzed comparatively precisely，it can overcome the gap which has not intuitively know each detail loaded instance in experiment，and adopted the method by combining ref色rence results with finite element analysis The analysis of this new type joint was carried on comparatiVely systematically，and main analysis coment and results as f01lows： (1)Built five石nite models which haVe equal dimension and same propeny of material(steel???concrete)with references， calculated them respectively Based on reference outcomes and the finite elemem analysis of new type joint，the calculation value of moment—resistant carrying capacity and reference expe“mental outcomes are uniform approximation So it can cenify the reliabmty of the flnite element analysis of concrete—filled steeltube(CFT)column to H_beam joint in this papeL (2)Analyzed main factors which a虢ct T-sti仃ener plates joint sti圩ness，the e疗ectlaw of the stiffness was confirmedby parameters that a骶ct joint stiffness．The analysis indicated that there was relative rotation between the beam and the column of CFT connection with external stiffeners under the load acting on the beam The most imponant f’actor influencing the stimless of the connection was the height of H—beam， while the thickness of the web and width of the ho rizontal stiffener had little innuence on the stiffhess (3)Seven different concrete—nlled rectangular steel tub