埋人式钢丝网增强混凝土柱的抗震性能研究

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中图分类号：TH212;TH213.3 文献标志码：A 文章编号：1000-4939（2025）06-1320-10

Abstract ：In order to enhance the seismic performance of reinforced concrete columns，a method of embedding steel wire mesh to strengthen concrete columns was proposed.A total of six specimens including reinforced concrete column，four steel mesh-reinforced columns，and one stirrup-reinforced column were designed and poured.Constant axial pressure was applied to the specimens and horizontal quasi-static cyclic loading was carred out.The failure patterns，crack distribution，hysteretic characteristics，ductility，and energy dissipation capacity of each specimen were tested.The seismic performances of steel wire mesh-reinforced specimens and stirrup-reinforced specimens with the same equivalent stirrup ratio were compared and analyzed，and the effects of steel mesh layers and configuration height range on the seismic performance of members were discussed.The research results show that the proper configuration of steel mesh can effectively restrict the formation and development of column sectional crack and“diagonal crack”，and transform the bending-shear failure mode of the specimen into bending failure mode.Therefore，compared with the reference specimen and stirrup-reinforced specimen，the wire mesh-reinforced specimen shows greater initial stiffess，better ductile deformation and cumulative energy dissipation capacity.The research results preliminarily clarify the relationship between the number of wire mesh layers，height range and ductile deformation capacity，stiffness degradation，and energy dissipation capacity of specimens，and the related results can provide reference for the design of embedded wire mesh-reinforced concrete columns.

Key words：embedded steel wire mesh ; reinforced concrete column; quasi-static cyclic loading test； sectional crack；seismic performance

按照受弯构件设计的钢筋混凝土柱（如桥墩柱）在强震作用下可能遭受脆性剪切破坏或弯剪破坏，这导致构件达不到预期延性性能，严重威胁整体结构的安全[1-3]。（剩余13336字）