钢结构
鋼結構
강결구
Steel Construction
2015年
10期
38-43
,共6页
章彦%谭向军%王群雄%刘忠
章彥%譚嚮軍%王群雄%劉忠
장언%담향군%왕군웅%류충
钢管混凝土格构柱%竖向均布荷载%有限元法%非线性分析
鋼管混凝土格構柱%豎嚮均佈荷載%有限元法%非線性分析
강관혼응토격구주%수향균포하재%유한원법%비선성분석
CFST latticed columns%vertical uniformly distributed loads%finite element method%nonlinear analysis
针对竖向均布荷载作用下四肢钢管混凝土格构柱的力学性能进行了非线性数值模拟。通过建立三维有限元模型，模拟了四肢钢管混凝土格构柱的破坏形态，并根据该模型讨论了核心混凝土强度等级、钢材等级与钢管的壁厚、长径比等参数对构件受力性能的影响。模拟结果与试验数据吻合较好，可为工程设计提供参考依据。
針對豎嚮均佈荷載作用下四肢鋼管混凝土格構柱的力學性能進行瞭非線性數值模擬。通過建立三維有限元模型，模擬瞭四肢鋼管混凝土格構柱的破壞形態，併根據該模型討論瞭覈心混凝土彊度等級、鋼材等級與鋼管的壁厚、長徑比等參數對構件受力性能的影響。模擬結果與試驗數據吻閤較好，可為工程設計提供參攷依據。
침대수향균포하재작용하사지강관혼응토격구주적역학성능진행료비선성수치모의。통과건립삼유유한원모형，모의료사지강관혼응토격구주적파배형태，병근거해모형토론료핵심혼응토강도등급、강재등급여강관적벽후、장경비등삼수대구건수력성능적영향。모의결과여시험수거문합교호，가위공정설계제공삼고의거。
ABSTRACT:Nonlinear numerical simulation was conducted to investigate the mechanical behaviors of four-tube CFST latticed columns under vertical uniformly distributed loads.The failure mode of four-tube CFST latticed columns was simulated by 3D finite element model.Moreover,the mechanical behavior of members was studied corresponding to different parameters such as core-concrete strength grade,steel grade,wall thickness of steel tube and length-diameter ratio.The results showed a good agreement between the numerical simulation and experiment data,which provided a useful reference for engineering design.
