高强钢棒混凝土短肢剪力墙抗震性能分析.pdfVIP

2024年8期江西建材工程技术与应用

高强钢棒混凝土短肢剪力墙抗震性能分析

陈桂煌

厦门泰睿坤建设工程有限公司，福建厦门361000

摘要：文中通过正交试验方法制备3种短肢剪力墙，低周反复加载试验测试其滞回特性、骨架曲线、刚度退化趋势、耗能能力以及自

复位能力等特性，全面分析高强钢棒混凝土短肢剪力墙的抗震性能。结果表明，高强钢棒可显著改善短肢剪力墙的承载能力和自复

67.35%，且在高轴压比的作用下得到进一步提高。普通混凝土短肢剪力墙的耗能更高，同时轴压比对于试件的等效黏滞阻尼系数影

响较小。

关键词：高强钢棒；短肢剪力墙；轴压比；抗震性能

中图分类号：TU318文献标识码：B

AnalysisofSeismicPerformanceofHigh-strengthSteelBarConcrete

Short-legShearWall

ChenGuihuang

XiamenTairukunConstructionEngineeringCo.Ltd.,Xiamen,Fujian361000

Abstract:Inthispaper,threekindsofshort-limbshearwallswerepreparedbyorthogonaltestmethod.Thehystereticcharacteristics,skele-

toncurve,stiffnessdegradationtrend,energydissipationcapacityandself-resettingabilityoftheshort-limbshearwallsweretestedbylow-

cyclerepeatedloadingtest.Theseismicperformanceofhigh-strengthsteel-barconcreteshort-limbshearwallswascomprehensivelyanalyzed.

Theresultsshowthathigh-strengthsteelrodcansignificantlyimprovetheload-carryingcapacityandself-resettingcapacityofshort-legshear

wall.WhenthedisplacementAngleis3.5%,theultimatebearingcapacityofhigh-strengthsteelrodconcreteshort-legshearwallisin-

creasedby67.03%,andtheresidualdeformationisreducedby67.35%,anditisfurtherincreasedundertheactionofhighaxialcompression

ratio.Theenergydissipationofordinaryconcreteshort-legshearwallsishigher,andtheaxialcompressionratiohaslittleinfluenceonthee-

quivalentviscousdampingcoefficientofthespecimens.

Keywords:Highstrengthsteelrod;Short-legshearwall;Axialcompressionratio;Seismicperformance

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