水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2015年
4期
18-22
,共5页
黄超凡%黄永辉%张石波
黃超凡%黃永輝%張石波
황초범%황영휘%장석파
剪力钉%粘结滑移效应%组合梁斜拉桥%受力变形特性%极限承载能力
剪力釘%粘結滑移效應%組閤樑斜拉橋%受力變形特性%極限承載能力
전력정%점결활이효응%조합량사랍교%수력변형특성%겁한승재능력
shear stud%bond slippage effect%composite beam cable-stayed bridge%mechanical deformation prop-erties%ultimate bearing capacity
以某斜拉桥实际工程为例,根据组合梁剪力钉的构造细节,通过引入剪力钉粘结滑移本构关系来考虑界面滑移的影响,据此建立有限元仿真模型,对钢—混凝土组合梁斜拉桥在恒活载作用下的受力变形特性进行详细研究。研究表明:剪力钉的抗剪刚度对组合梁的应力、位移和极限承载能力均有一定的影响,因此在设计组合梁斜拉桥时,需要确保剪力连接件的抗剪刚度。
以某斜拉橋實際工程為例,根據組閤樑剪力釘的構造細節,通過引入剪力釘粘結滑移本構關繫來攷慮界麵滑移的影響,據此建立有限元倣真模型,對鋼—混凝土組閤樑斜拉橋在恆活載作用下的受力變形特性進行詳細研究。研究錶明:剪力釘的抗剪剛度對組閤樑的應力、位移和極限承載能力均有一定的影響,因此在設計組閤樑斜拉橋時,需要確保剪力連接件的抗剪剛度。
이모사랍교실제공정위례,근거조합량전력정적구조세절,통과인입전력정점결활이본구관계래고필계면활이적영향,거차건립유한원방진모형,대강—혼응토조합량사랍교재항활재작용하적수력변형특성진행상세연구。연구표명:전력정적항전강도대조합량적응력、위이화겁한승재능력균유일정적영향,인차재설계조합량사랍교시,수요학보전력련접건적항전강도。
Based on the requirement of the safety and the durability of composite beam cable-stayed bridges ,it is neces-sary to analyze the mechanical behavior of the structure considering the bond slippage effect .Taking an actual cable-stayed bridge as an example ,the finite element model considering the constructional details of the shear studs in the com-posite beams was established based on the bond-slip constitutive relationship of shear studs .And the bearing capacity and mechanical behavior of steel-concrete composite beams under the dead load and live load were calculated in the simula-tion .The results indicate that the shear stiffness of shear connectors has certain influence on the displacement ,stress and the ultimate bearing capacity of the composite beam structures .Sufficient shear stiffness of shear studs must be ensured in the design of composite beam cable-stayed bridges .