基于数值分析的建筑黏滞耗能支撑结构加固方法研究
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摘要
为了提高建筑黏滞耗能支撑结构加固的稳定性,提出一种基于数值分析的建筑黏滞耗能支撑结构加固方法。构建建筑黏滞耗能支撑结构的力学分布结构模型,在等效加固区采用Hoek-Brown屈服准则进行简化力学模型设计;采用超前帷幕阻尼控制方法进行加固区计算模型的构建,在弹性区支护应力作用下通过弹性应变特征分析进行建筑黏滞耗能支撑结构加固的数值分析和结构优化设计。实验结果表明,采用此方法进行建筑黏滞耗能支撑结构加固的加固强度较大,加固区边界上的荷载与理想曲线十分接近,加固性能较好。
In order to improve the stability of building viscous energy dissipation bracing structure reinforcement,a strengthening method of building viscous energy dissipation bracing structure based on numerical analysis is proposed.The mechanical distribution structure model of the building viscous energy dissipation bracing structure is constructed.The Hoek-Brown yield criterion is used to simplify the mechanical model design in the equivalent reinforcement zone;the pre-curtain damping control method is used to construct the calculation model in reinforcement zone.Numerical analysis and structural optimization design of building viscous energy dissipation bracing structure reinforcement by elastic strain characteristic analysis under the elastic zone support stress.The experimental results show that the reinforcement strength of the building viscous energy dissipation bracing structure is larger when this method is used.The load on the boundary of the reinforcement zone is very close to the ideal curve,and the reinforcement performance is better.
In order to improve the stability of building viscous energy dissipation bracing structure reinforcement,a strengthening method of building viscous energy dissipation bracing structure based on numerical analysis is proposed.The mechanical distribution structure model of the building viscous energy dissipation bracing structure is constructed.The Hoek-Brown yield criterion is used to simplify the mechanical model design in the equivalent reinforcement zone;the pre-curtain damping control method is used to construct the calculation model in reinforcement zone.Numerical analysis and structural optimization design of building viscous energy dissipation bracing structure reinforcement by elastic strain characteristic analysis under the elastic zone support stress.The experimental results show that the reinforcement strength of the building viscous energy dissipation bracing structure is larger when this method is used.The load on the boundary of the reinforcement zone is very close to the ideal curve,and the reinforcement performance is better.
引文
[1]郑世杰,郭树勋,杨锐.混凝土裂缝问题的研究及防治措施[J].施工技术,2018,47(S1):1762-1765.
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[9]秦堃,谭策译.黏滞阻尼器在校舍框架结构抗震加固中的应用[J].建筑技术,2017,48(8):847-850.
[10]徐龙河,谢行思,李忠献.自复位变阻尼耗能支撑的力学原理与性能研究[J].工程力学,2018,35(1):201-208.
[2]李健,罗永峰,郭小农,等.双层钢板组合剪力墙抗震性能试验研究[J].同济大学学报:自然科学版,2013,41(11):1636-1643.
[3]赵顺增,李长成,贾福杰,等.HCSA补偿收缩混凝土收缩裂缝自愈合性研究[J].混凝土,2018(9):1-3.
[4]耿方方,李亚东,赵昕,等.节点域刚度对装配整体式混凝土框架结构抗震性能的影响[J].科学技术与工程,2018,18(27):187-192.
[5]王伟,廖芳芳,陈以一.基于微观机制的钢结构节点延性断裂预测与裂后路径分析[J].工程力学,2014,31(3):101-108.
[6]位三栋,马跃强,彭斌,等.超高性能混凝土加固历史保护建筑砖砌体承重墙性能试验研究[J].建筑结构学报,2018,39(S2):284-289.
[7]臧传君.对建筑改造工程结构加固技术研究分析[J].工程技术研究,2018(15):233-234.
[8]梁佶,文兴红,杨铭钊,等.昆明某老建筑的隔震加固设计[J].工程抗震与加固改造,2019,41(1):132-136.
[9]秦堃,谭策译.黏滞阻尼器在校舍框架结构抗震加固中的应用[J].建筑技术,2017,48(8):847-850.
[10]徐龙河,谢行思,李忠献.自复位变阻尼耗能支撑的力学原理与性能研究[J].工程力学,2018,35(1):201-208.