不同场地类别对框架结构办公楼主要结构材料用量的影响
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摘要
上部结构与地基基础是复杂相互作用的整体,地震经验表明,相同或相近的建筑物在场地条件不同时,所产生的震害也不相同.按照我国现行的设计方法,大部分建筑的上部结构都是单独进行设计计算的,为了使建筑物在不同场地条件下设计得更合理,同时保证安全性和经济性,引入了场地类别的区分.分析了位于某7度区(0.15g)建筑结构在不同场地类别条件下影响结构主要材料用量的因素,并利用结构设计软件PKPM对分别位于Ⅰ、Ⅱ、Ⅲ类场地条件下的框架结构办公楼结构进行设计,计算出主要结构材料用量.对于7度(0.15g)设防地区,对比得出相对于Ⅰ类场地,当建筑结构位于Ⅱ、Ⅲ类场地时,结构混凝土用量增加4%,结构钢筋总用量增加17%,53%.
The upper structure and the foundation are complex and interacted entirety. Earthquake experience shows that earthquake damage of same or similar buildings would be different in different site conditions. But the upper structure of most buildings is designed and computed separatly accordingt to our current design method. In order to design buildings in different site conditions further legitimately, and ensure the safety and economy at the same time, the notion of site category was introduced. The factors, which influences mian material amount of the structure, was analyzed on the case of that the building structure locates in District 7(0.15g) under different site category conditions. Amount of the main materials in frame office building design had been computed by using the structural design software PKPM under the conditions of class I, II and III site category. Compared to building structure in class I site, concrete amount of building structure increases 4% than in class II and III site, the total amount of structural steel increases 17%, 53%,respectively.
The upper structure and the foundation are complex and interacted entirety. Earthquake experience shows that earthquake damage of same or similar buildings would be different in different site conditions. But the upper structure of most buildings is designed and computed separatly accordingt to our current design method. In order to design buildings in different site conditions further legitimately, and ensure the safety and economy at the same time, the notion of site category was introduced. The factors, which influences mian material amount of the structure, was analyzed on the case of that the building structure locates in District 7(0.15g) under different site category conditions. Amount of the main materials in frame office building design had been computed by using the structural design software PKPM under the conditions of class I, II and III site category. Compared to building structure in class I site, concrete amount of building structure increases 4% than in class II and III site, the total amount of structural steel increases 17%, 53%,respectively.
引文
[1]中华人民共和国住房与城乡建设部.GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010:257-258.
[2]中华人民共和国住房与城乡建设部.GB 50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010:1.
[3]中华人民共和国住房与城乡建设部.GB 50223—2008建筑工程抗震设防分类标准[S].北京:中国建筑工业出版社,2008:3-4.
[4]吕悦军,彭艳菊,兰景岩,等.场地条件对地震动参数影响的关键问题[J].震灾防御技术2008,3(2):126-133.
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[6]吴云翠.钢筋混凝土框架结构的抗震设计[J].企业科技与发展,2013(14):62-64.
[7]梁亚坤,郑京龙.结合新规范谈谈抗震措施与抗震构造措施[J].中国产业,2011(2):56-57.
[8]张宇鑫,刘海成,张星源.PKPM结构设计应用[M].上海:同济大学出版社,2008.
[9]张晓杰.建筑结构设计软件PKPM2010应用与实例[M].北京:中国建筑工业出版社,2014.
[2]中华人民共和国住房与城乡建设部.GB 50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010:1.
[3]中华人民共和国住房与城乡建设部.GB 50223—2008建筑工程抗震设防分类标准[S].北京:中国建筑工业出版社,2008:3-4.
[4]吕悦军,彭艳菊,兰景岩,等.场地条件对地震动参数影响的关键问题[J].震灾防御技术2008,3(2):126-133.
[5]刘小映.我国混凝土结构抗震措施合理性分析[D].长沙:湖南大学,2006.
[6]吴云翠.钢筋混凝土框架结构的抗震设计[J].企业科技与发展,2013(14):62-64.
[7]梁亚坤,郑京龙.结合新规范谈谈抗震措施与抗震构造措施[J].中国产业,2011(2):56-57.
[8]张宇鑫,刘海成,张星源.PKPM结构设计应用[M].上海:同济大学出版社,2008.
[9]张晓杰.建筑结构设计软件PKPM2010应用与实例[M].北京:中国建筑工业出版社,2014.
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