钢结构建筑异型节点极限承载特征多尺度非线性数值模拟

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JIANG Feng， SU Qi

（CNCCC-Tongan City-Industry Integration Construction （An qing） Co.，Ltd.，Anqing 246000，China）

Abstract：Astehingetorasferthntealforeoftebuldingstructure，thespecialshapedjoitisnimporantguaantefore safetyofhestructuretomeettestrssrequirements.Iodertoacuratelyrstoretemechaicalcharacterisicsofspecialshaped joints，amultiscaleoliarumeicalsiulationmetodisproposedforteultiatebaringcharactersticsofspecialshapedjtsin stlstructures.Consideringgeometrictructure，materialpropetisandtherfactos，oinearfiniteelementodelofspecalsape jointsnstelstructurebuldingsisbuiltTeladingprocessofspecial-shapedjointsissimulated，andthemechanicalmecanismof jointsisanalyzdatultisale.Theultimatebaringcapacityfspecial-shapedjointsisalculatedfromeaspectsofsarsistance andbendingresistance，andthenumericalsimulationresultsoftheultimatebearingcharacteristicsofspecial-shapedjointsare output.Theresultsshowthatcomparedwithtraditionalnumericalsimulationmethods，thesimulationeroroftheultimatebaringcapacity of heoptimizeddesignmethodhasbeenreducedby1.88N；Theapplicationofthismethodcanefectivelyreducetheprobablityof instability of irregular nodes.

Keywords：steeltucturebldng；speialode；ultateeainghacterisis；ultisalesmulation；onliarumcallatio

0 引言

与传统建筑结构相比，钢结构具有强度高、塑性韧性好、材质均匀等特点，被广泛地应用到建筑行业中，逐渐成为主流的建筑工艺[1]。（剩余6399字）