CAJ | 학술논문

为改善交错桁架结构中斜腹杆的受力性能，提高该结构的耗能能力，结合美国一工程实例，设计单榀单层的交错桁架结构基本试件，研究其单调及循环加载时的受力性能。在此基础上设计另外2组不同刚度斜腹杆的对比试件，然后采用ANSYS 对3组试件进行系统地对比分析，研究交错桁架结构的受力性能。研究结果表明：通过改变斜腹杆的刚度，使结构的塑性铰限定于预期设定的部位，建立合理的损伤机制，既能充分利用结构良好的抗侧移性能又能充分发挥结构的延性，可以在很大程度上提高交错桁架结构的抗震性能，为结构在抗震区的设计提供参考。
위개선교착항가결구중사복간적수력성능，제고해결구적모능능력，결합미국일공정실례，설계단품단층적교착항가결구기본시건，연구기단조급순배가재시적수력성능。재차기출상설계령외2조불동강도사복간적대비시건，연후채용ANSYS 대3조시건진행계통지대비분석，연구교착항가결구적수력성능。연구결과표명：통과개변사복간적강도，사결구적소성교한정우예기설정적부위，건립합리적손상궤제，기능충분이용결구량호적항측이성능우능충분발휘결구적연성，가이재흔대정도상제고교착항가결구적항진성능，위결구재항진구적설계제공삼고。
In order to improve the mechanical performance of oblique abdominal rod in the staggered truss struc-ture,and the energy dissipation capacity of the structure,this paper designed a single common monolayer basic specimen of the staggered truss structure by combining with a engineering example in the United States.The me-chanical properties under monotonic and cyclic loading was then studied.Based on that,this paper designed oth-er two groups of contrast specimens that oblique abdominal rod had different stiffness,then compared and ana-lysed the three groups of specimens systematically with utilizing ANSYS in order to study the mechanical perform-ance of staggered truss structure.It is concluded that by changing the stiffness of oblique abdominal rod,the structure of the plastic hinge was restricted to set expectations establishing reasonable damage mechanism.On the one hand,it made full use of good lateral resistance of structure.On the other hand,it gave full play to the duc-tility of the structure,which could improve seismic performance of staggered truss structure largely providing a reference for structure design in seismic zone.