玻璃天窗开合屋盖结构拼装定位控制及施工监测研究
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摘要
玻璃天窗开合屋盖结构是未来商业建筑的一种重要发展趋势,本文结合贵阳市西南国际商贸城玻璃天窗开合屋盖结构施工与监测,介绍了玻璃天窗异于其他开合屋盖结构体系的特点。由于其屋面材料具有自重大、易劳损的特点,玻璃天窗开合屋盖结构的制作、拼装和定位直接影响到开合机械运行的安全和稳定,故此类玻璃天窗开合屋盖结构的拼装和定位要求具有更高的安装精度。本文对玻璃天窗开合屋盖结构的构件制作、工艺流程及控制要求、屋盖结构支座定位、钢结构箱梁拼装及吊装方法、玻璃天窗网架及轨道安装方法等关键技术进行了总结。同时,还对工程现场的屋盖体系在不同受力工况和运行状态下振动信号和振动频率进行了监测研究,分析结果表明此项目开合屋盖拼装定位控制的施工方法和工艺流程完全能达到开合机械运行的精度要求,确保了玻璃天窗开合屋盖体系的安全和稳定,也为其他同类工程的玻璃天窗开合屋盖结构拼装定位控制及施工提供了参考依据。
The retractable roof structures are developing technology for commercial buildings.The charecteristics of retractable roof structure of glass skylight,which is defferent with other retractable roof structure were introduced through an actual project in Guiyang southwest international trade city.Due to the heavy deadweight and easy-damaged feature of glass skylight,the safety and stability of the retractable roof system directly depends on the fabricating,asembly and positionling of each element of retractable roof structure of glass skylight.Therefore,more accurate methods and technologies are required in its construction.In this paper,the component fabrication,technological process and its control requirements,bearing positioning,asembly and lifting of the steel girder,setting of skylight rails were concluded and introduced.The vibration signals and frequencies in different force status and running state are detected and analyzed.The results show that the construction method and technological process of assembly and positioning which applied in the project can meet the requirement of accuracy control of the retractable roof structure of glass skylight,and it provides a helpful method to other similar projects.
The retractable roof structures are developing technology for commercial buildings.The charecteristics of retractable roof structure of glass skylight,which is defferent with other retractable roof structure were introduced through an actual project in Guiyang southwest international trade city.Due to the heavy deadweight and easy-damaged feature of glass skylight,the safety and stability of the retractable roof system directly depends on the fabricating,asembly and positionling of each element of retractable roof structure of glass skylight.Therefore,more accurate methods and technologies are required in its construction.In this paper,the component fabrication,technological process and its control requirements,bearing positioning,asembly and lifting of the steel girder,setting of skylight rails were concluded and introduced.The vibration signals and frequencies in different force status and running state are detected and analyzed.The results show that the construction method and technological process of assembly and positioning which applied in the project can meet the requirement of accuracy control of the retractable roof structure of glass skylight,and it provides a helpful method to other similar projects.
引文
[1]范重,彭翼,胡纯炀,等.开合屋盖结构设计关键技术研究[J].建筑结构学报,2010,31(6):132-144.
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[8]范重,彭翼,胡纯炀,等.开合屋盖结构设计关键技术研究[J].建筑结构学报,2010,31(6):132-144.
[9]陈以一,江晓峰,陈扬骥.大型开闭屋盖结构极端状况研究[J].建筑结构学报,2007,28(1):21-27.
[10]陈以一,张大照,薛伟辰,等.承载开闭钢屋盖的预应力混凝土看台结构抗震性能研究[J].土木工程学报,2007,40(8):22-28.
[11]郭昌生,吴开成.开合屋盖结构动力特征及抗震性能分析[J].地震工程与工程振动,2006,26(3):124-127.
[12]李寿科,李寿英,陈政清,等.大跨开合式屋盖峰值风压的试验研究[J].振动与冲击,2010,29(11):66-72.
[13]范重,王义华,栾海强,等.开合屋盖结构设计荷载取值研究[J].建筑结构,2011,41(12):39-51.
[14]侯国勇,关富玲,霍国锋.开合结构风压计算的数值模拟研究[J].科技通报,2010,26(4):576-581.
[2]关富玲,徐旭东,杨超辉,等.开合屋盖结构的设计——奥运体育场馆[J].力学与实践,2008,30(3):15-23.
[3]张凤文,刘锡良.开合屋盖结构的发展及开合机理研究[J].钢结构,2001,16(4):1-6.
[4]苏建华,韩大建,黎志军.折叠开合式膜屋盖建筑简介[J].钢结构,2006,(4):1-4.
[5]范重,赵长军,李丽,等.国内外开合屋盖的应用现状与实践[J].施工技术,2010,39(8):1-7.
[6]关富玲,程媛,余永辉,等.开合屋盖结构设计简介[J].建筑结构学报,2005,26(4):112-116.
[7]李沛玲,黄呈伟,高永林,等.建筑开合屋盖结构的概述及其发展[J].钢结构,2007,22(10):1-5.
[8]范重,彭翼,胡纯炀,等.开合屋盖结构设计关键技术研究[J].建筑结构学报,2010,31(6):132-144.
[9]陈以一,江晓峰,陈扬骥.大型开闭屋盖结构极端状况研究[J].建筑结构学报,2007,28(1):21-27.
[10]陈以一,张大照,薛伟辰,等.承载开闭钢屋盖的预应力混凝土看台结构抗震性能研究[J].土木工程学报,2007,40(8):22-28.
[11]郭昌生,吴开成.开合屋盖结构动力特征及抗震性能分析[J].地震工程与工程振动,2006,26(3):124-127.
[12]李寿科,李寿英,陈政清,等.大跨开合式屋盖峰值风压的试验研究[J].振动与冲击,2010,29(11):66-72.
[13]范重,王义华,栾海强,等.开合屋盖结构设计荷载取值研究[J].建筑结构,2011,41(12):39-51.
[14]侯国勇,关富玲,霍国锋.开合结构风压计算的数值模拟研究[J].科技通报,2010,26(4):576-581.
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