BRBs屈曲约束支撑连接节点及施工优化技术研究

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中图分类号：TG498.1 文献标志码：A文章编号：1001-5922（2026）1-0230-04

Abstract：Buckling-restrained braces （BRBs）are eficient energy-dissipating and seismic mitigation components， and the design of their connection nodes and construction quality directly afect the seismic performance of buildings.Based on the urban central archive project in aregionwith 8-degreeseismic fortification intensity，this paper carriedout nodeselection，stressanalysisand structuraloptimizationdesignfortheneedsofstructural weakparts in accordance with the principleof“strong nodes and weak members”，and verified thedesign via finiteelement analysis.Technologiessuch as BIM detailing and 3D scanning positioning，modular installation，and welding（（bonding） control were proposed，realizing high-precisionassemblyof 56 setsof BRBswitha weld qualificationrateof 99.5% .This approach improves seismic performance and construction efficiency，and can provide a reference for similar projects.

Key Words：buckling-restrained braces;node welding（bonding）design;energy disipation andvibration controlseismic mitigation;construction optimization;seismic performance

地震是一类具有极强破坏性的自然灾害，传统抗震设计理念主要借助结构构件本身的塑性形变来消耗地震能量，这可能会有较大导致结构在强震之后产生不可修复的损伤。（剩余5257字）