消能减震加固措施在多层装配式框架中的应用
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摘要
预制装配式结构较多地应用于早期的建筑,具有整体性较差的缺点。本文以一个未考虑抗震设防的预制装配式混凝土多层框架结构为工程实例,说明了采用消能减震技术进行抗震加固的分析方法,文中采用层串模型、杆系模型分别对原结构、加固结构在小震、大震作用下的抗震性能和减震效果进行了对比分析,分析表明,增加合适的耗能减震系统,可以大大提高该类结构的抗震性能。
Prefabricated reinforced concrete frame,used as the main structural style in the early buildings,has the poor integrity of the whole structural system.A practical engineering project is presented here to demonstrate the application of the energy dissipation technology for seismic retrofitting for prefabricated reinforced concrete frame.Lumped storey model and finite element(rod system) model are used here to make comparative study on the seismic behavior of the original structure and the retrofitted structure by adding viscous dampers.Analytical results show that adding proper energy dissipation system on the structure can obviously improve the seismic performance of the prefabricated reinforced concrete frame structures.
Prefabricated reinforced concrete frame,used as the main structural style in the early buildings,has the poor integrity of the whole structural system.A practical engineering project is presented here to demonstrate the application of the energy dissipation technology for seismic retrofitting for prefabricated reinforced concrete frame.Lumped storey model and finite element(rod system) model are used here to make comparative study on the seismic behavior of the original structure and the retrofitted structure by adding viscous dampers.Analytical results show that adding proper energy dissipation system on the structure can obviously improve the seismic performance of the prefabricated reinforced concrete frame structures.
引文
[1]GB50023-95建筑抗震鉴定标准[S].
[2]翁大根,卢著辉,等.粘滞阻尼器力学性能研究[J].世界地震工程,2000,18(4):30-34.
[3]翁大根,黄伟,吕西林.钢框架消能减震体系研究与工程应用[J].建筑结构,2005,35(3):42-47.
[4]翁大根,吕西林.消能减震结构设计参数研究与试验验证[J].地震工程与工程振动,2004,24(2):150-157.
[5]翁大根,丁孙纬.某框架结构消能减震性能曲线分析[J].防灾减灾工程学报.2007,27(增刊):251-257.
[6]GB50011-2001建筑抗震设计规范[S].
[7]上海市设计规程.DG J08-9-2003,J10284-2003建筑抗震设计规程[S].
[2]翁大根,卢著辉,等.粘滞阻尼器力学性能研究[J].世界地震工程,2000,18(4):30-34.
[3]翁大根,黄伟,吕西林.钢框架消能减震体系研究与工程应用[J].建筑结构,2005,35(3):42-47.
[4]翁大根,吕西林.消能减震结构设计参数研究与试验验证[J].地震工程与工程振动,2004,24(2):150-157.
[5]翁大根,丁孙纬.某框架结构消能减震性能曲线分析[J].防灾减灾工程学报.2007,27(增刊):251-257.
[6]GB50011-2001建筑抗震设计规范[S].
[7]上海市设计规程.DG J08-9-2003,J10284-2003建筑抗震设计规程[S].
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