某大跨度煤棚结构方案选型及计算
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摘要
某干煤棚初定设计跨度为160m,长度为400m,对柱面网壳和张弦桁架两种结构方案,分别选取3种结构布置形式进行了结构计算,结合计算结果及施工难易程度和经济性对各种布置形式优缺点进行分析,最终选定50m高张弦拱桁架方案,并完成了结构设计。利用结构分析与设计软件MIDAS对整体结构进行分析验算,并选用ABAQUS软件进行动力弹塑性时程分析,结构的各项指标均满足相关规范要求。可为类似大跨度项目的选型及设计提供参考。
The structure selection and design are conducted for a dry coal shed with the span of 160 mand the length of 400 m.Two types of structures including cylindrical reticulated shell and truss-string structure are taken into consideration,three structural layout for both of the two forms are calculated,and the advantages and disadvantages for each form is discussed based on the calculation results,the corresponding construction complexity and the cost.Arch truss-string in the height of 50 mis chosen as structure form and structural design is conducted.The analysis and calculation is carried out using software MIDAS,and dynamic elastic-plastic time-history analysis is performed using finite element analysis software ABAQUS.The analysis indicates that the structural performance can meet the need of codes.This paper can provide a useful reference for structure selection and design of similar large-span structures.
The structure selection and design are conducted for a dry coal shed with the span of 160 mand the length of 400 m.Two types of structures including cylindrical reticulated shell and truss-string structure are taken into consideration,three structural layout for both of the two forms are calculated,and the advantages and disadvantages for each form is discussed based on the calculation results,the corresponding construction complexity and the cost.Arch truss-string in the height of 50 mis chosen as structure form and structural design is conducted.The analysis and calculation is carried out using software MIDAS,and dynamic elastic-plastic time-history analysis is performed using finite element analysis software ABAQUS.The analysis indicates that the structural performance can meet the need of codes.This paper can provide a useful reference for structure selection and design of similar large-span structures.
引文
[1]齐旭东.某大跨度干煤棚结构选型与抗震性能研究[D].北京:北京交通大学,2016.QI Xudong.A large span dry coal shed on structure selection and seismic performance[D].Beijing:Beijing Jiaotong University,2016.(in Chinese)
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[5]张旭巍.120m跨长江航道模型实验厅钢桁架预应力拉索张拉施工技术[J].施工技术,2014,43(20):75-79.DOI:10.7672/sgjs2014200075.ZHANG Xuwei.Prestressed cable tensioning construction for steel truss in 120m-span model test hall[J].Construction Technique,2014,43(20):75-79. DOI:10.7672/sgjs2014200075.(in Chinese)
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[7]中华人民共和国住房和城乡建设部.钢结构设计规范:GB50017—2017[S].北京:中国计划出版社,2017.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for Design of Steel Structures:GB 50017—2017[S].Beijing:China Planning Press,2017.(in Chinese)
[2]中华人民共和国住房和城乡建设部.建筑结构荷载规范:GB50009—2012[S].北京:中国建筑工业出版社,2012.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Load Code for the Design of Building Structures:GB 50009—2012[S].Beijing:China Architecture&Building Press,2012.(in Chinese)
[3]中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for Seismic Design of Buildings:GB 50011—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[4]刘培祥,陈宏.某超大跨度干煤棚结构设计与研究[C]//中国钢结构协会结构稳定与疲劳分会第14届(ISSF-2014)学术交流会暨钢结构教学研讨会.北京:《钢结构》编辑部,2014:585-590.LIU Peixiang,CHEN Hong.Design and study on certain super span coal storage structue[C]//The 14th(ISSF-2014)Academic Exchange Conference and Steel Structure Teaching Seminar of Structural Stability and Fatigue Branch of China Steel Structure Association.Beijing:Editorial Department of Steel Construction,2014:585-590.(in Chinese)
[5]张旭巍.120m跨长江航道模型实验厅钢桁架预应力拉索张拉施工技术[J].施工技术,2014,43(20):75-79.DOI:10.7672/sgjs2014200075.ZHANG Xuwei.Prestressed cable tensioning construction for steel truss in 120m-span model test hall[J].Construction Technique,2014,43(20):75-79. DOI:10.7672/sgjs2014200075.(in Chinese)
[6]中华人民共和国住房和城乡建设部.空间网格结构技术规程:JGJ 7—2010[S].北京:中国建筑工业出版社,2010.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Technical Specification for Space Frame Structures:JGJ 7—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[7]中华人民共和国住房和城乡建设部.钢结构设计规范:GB50017—2017[S].北京:中国计划出版社,2017.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for Design of Steel Structures:GB 50017—2017[S].Beijing:China Planning Press,2017.(in Chinese)