山东建筑大学学报2017，Vol.32Issue(6)：580-587,8.DOI:10.12077/sdjz.2017.06.011
预应力混凝土梁等效荷载及线型设计优化——以温州三江立体城为例
Equivalent load and line shape optimization of prestressed concrete beam: A case study of Sanjiang City in Wenzhou
楼卓 1冯永伟1
作者信息
- 1. 浙江省建筑设计研究院,浙江杭州310006
- 折叠
摘要
Abstract
The prestressed frame beam is one of the preferred structural forms of heavy load,large span,large cantilever and transfer beam in civil buildings.The analysis of prestress equivalent load and line type is of great significance to the design of prestress.The study of its regularity has a great reference to the optimization design of the prestressed concrete beams in the future.The article takes the Sanjiang City of Wenzhou as an example and based on the theory of prestressed concrete structure.The analysis of the equivalent load of prestressing force and the optimization of the prestress line type are studied.On the basis of this,an example is made to optimize the prestressed beams with heavy load,large span,lift column and large load.The results show that:There is a positive correlation between the absolute vector height and the equivalent load of heavy load long span prestressed beams.At the same time,there is an optimal position of reverse bending point which makes the maximum equivalent load.The two kinds of parabolic combinations are the same as those of large span prestressed beams.The combination of parabola and linear line type is the reverse correlation of line line and point of folding.The preferred value can be obtained by selecting the parabolic line or linear line through the external load.关键词
预应力梁/预应力框架/预应力筋线型/预应力等效荷载/线型优化Key words
prestressed beam/prestressed frame/prestressed tendon/prestress equivalent load/line shape optimization分类
建筑与水利引用本文复制引用
楼卓,冯永伟..预应力混凝土梁等效荷载及线型设计优化——以温州三江立体城为例[J].山东建筑大学学报,2017,32(6):580-587,8.
