钢纤维钢筋混凝土梁柱节点抗震设计方法  

SEISMIC RESISTANT DESIGN METHODS FOR STEEL FIBER REINFORCED CONCRETE BEAM-COLUMN CONNECTIONS

作　　者：季韬[1] 郑建岚[1] 林旭健[1] 

机构地区：[1]福州大学土木建筑工程学院,福建福州350002

出　　处：《工程力学》2006年第5期94-98,共5页Engineering Mechanics

基　　金：国家自然科学基金资助项目(50278019);福建省自然科学基金资助项目(E0210017)

摘　　要：基于压杆模型和软化桁架模型,提出钢纤维钢筋混凝土梁柱节点的一种新的抗震设计方法。掺入节点核心区的钢纤维可被等效为部分水平和竖向剪力筋。在节点核心区与梁或柱相交端截面处建立平衡方程、协调方程和本构方程,可以求出传给节点压杆模型和软化桁架模型的地震作用。提出的设计方法能够对节点的水平和竖向抗剪承载力进行设计,其可靠性得到七个钢纤维钢筋混凝土梁柱外节点试验数据的验证。Based on a compression strut model and a softened truss model, this paper proposes a new seismic resistant design method of steel fiber reinforced concrete beam-column connections. Steel fibers mixed into joint cores can be regarded as part of horizontal and vertical shear reinforcements. By establishing equilibrium equations, compatibility equations and constitutive equations on the interfaces between joint cores and beams or columns, seismic actions transmitted to compression strut models and softened truss models can be obtained. The proposed design method can ensure the horizontal and vertical shear resistant capacities of joints, and its reliability is verified by test data of seven steel fiber reinforced concrete beam-column exterior connections.

关 键 词：结构工程 抗震 设计方法 钢纤维 钢筋混凝土 梁柱节点 

分 类 号：TU375.1[建筑科学—结构工程]