CAJ | 학술논문

简要介绍地震安全社区的实现途径以及防屈曲支撑的构成和性能参数。运用 ABAQUS 软件对有无安装防屈曲支撑的钢筋混凝土框架模型进行动力时程分析，总结分析防屈曲支撑对钢筋混凝土框架结构的减震效果。结果表明，防屈曲支撑能大大降低钢筋混凝土框架结构在罕遇地震作用下的层间位移角，提高建筑物抗震性能，使地震安全社区中抗震设防烈度为Ⅶ度的建筑物能够抵御Ⅷ度罕遇地震。
간요개소지진안전사구적실현도경이급방굴곡지탱적구성화성능삼수。운용 ABAQUS 연건대유무안장방굴곡지탱적강근혼응토광가모형진행동력시정분석，총결분석방굴곡지탱대강근혼응토광가결구적감진효과。결과표명，방굴곡지탱능대대강저강근혼응토광가결구재한우지진작용하적층간위이각，제고건축물항진성능，사지진안전사구중항진설방열도위Ⅶ도적건축물능구저어Ⅷ도한우지진。
This article briefly introduces the seismic safety community and the composition and performance parameters of buckling-restrained braces.The seismic safety community is the com-munity that experiences small destructive earthquakes.Specifically,these communities have car-ried out effective seismic fortification of all buildings in compliance with seismic hazard regula-tions.In the seismic safety community,improving the seismic performance of buildings is the pri-mary goal.Local seismic fortifications meet the minimum seismic requirements,and the level of fortification of buildings is increased using certain technical measures.The traditional method of seismic fortification is to increase the size of major structural components,such as beams,col-umns,and shear walls,and to improve the ratio of reinforcements to buildings.However,increas-ing the amount of material increases cost and reduces the usable area of buildings.The new meth-od calls for change to the seismic characteristics of the structure itself and improvements to its ca-pacity for energy dissipation through the use of isolation and dissipation technologies.In the struc-tural system,the seismic sections generally remain the same,and cost increases are small.Buck-ling-restrained braces have gained widespread application as measures for energy dissipation and earthquake resistance.They also overcome the disadvantages of traditional energy dissipation braces.The component’s full section will yield during compression,effectively minimizing local buckling failure and overall buckling failure.Therefore,the energy dissipation capacity of the com-ponents is maximized and the seismic response of the structure is reduced.The Dalian Aonan Mingxiu manor project described in the paper is a pilot project undertaken in the Dalian earth-quake safety community.The project addresses building security and earthquake safety at the de-sign stage.By installing buckling-restrained braces,the seismic characteristics of the structure it-self are changed.To determine whether the structure can achieve the goals of seismic fortification, the project conducts an elastic-plastic analysis by installing buckling-restrained braces in the origi-nal frame structure.In this study,the ABAQUS software was used to conduct the dynamic and time-history analysis of two models of reinforced concrete framework:the origin structure and the structure with buckling-restrained braces added.The shock absorption effects of the buckling-restrained braces were analyzed.The results of the analysis showed that buckling-restrained braces could significantly reduce the inter-storey drift angle of a reinforced concrete frame during rare earthquakes and improve the level of seismic fortification buildings.