预应力空心楼盖应用关键技术及计算分析  

Key Technology and Calculation Analysis of Prestressed Hollow Slab

作　　者：朱强[1,2] 顾璐璐 梁书亭[2] 金如元 徐澄 汪杰 

机构地区：[1]江苏省建筑设计研究院有限公司,江苏南京210019 [2]东南大学土木工程学院,江苏南京210096 [3]南京长江都市建筑设计股份有限公司,江苏南京210002

出　　处：《江苏建筑》2017年第6期24-26,共3页Jiangsu Construction

基　　金：国家自然科学基金资助项目(编号:59878013)

摘　　要：预应力作为一种比较成熟的技术,在工程中的应用越来越多;现浇空心板即在混凝土平板中埋设内模,以减轻自重,同时不影响承载力。预应力混凝土空心楼盖则兼备了2种技术的优点,一方面具备较小的截面,另一方面又具有较高的承载力、较小的裂缝和挠度。南京二十八所科研办公楼是一栋综合性高档办公大楼,它在层高4.2m的基础上,要求建筑的净高不低于3.2m。而结构局部采用了9m×12m的柱网。文章在介绍了南京二十八所科研办公楼的概念设计后,重点介绍了预应力混凝土空心楼盖在设计中的关键技术,并对其进行了详细的计算分析。As a very mature technology, prestressed technology has been widely applied in engineering practice.Cast-in-situ hollow concrete slab is a kind of slab with a lot of internal hollows embedded in the concrete slab to reduce the dead-weight, while not affecting the bearing capacity. Prestressed concrete hollow slab has both advantages of the two technologies. On the one hand, it has a smaller cross-section, on the other hand, it has higher bearing capacity, smaller crack length and width, as well as smaller deflection. Nanjing No.28 Scientific Research Office Building is a comprehensive high-grade office building which requires the net height not less than 3.2 m with a 4.2 m height of the building. The structure of the local column layout is 9 m×12 m. This paper first introduces the concept design of Nanjing twenty-eighth Scientific Research Office Building, after that, the critical technologies in the design of prestressed concrete hollow slab are calculated and analyzed emphatically.

关 键 词：预应力混凝土空心楼盖 有粘结预应力技术 顺、横筒方向 

分 类 号：TU375.4[建筑科学—结构工程]