Study on Calculation of Interface between Fresh-Old Concrete in Assembled Monolithic Water-Distributing Beam

被引：0

作者：

Tian, Hua ^{[1
]}

Zhang, Zi-xian ^{[1
]}

机构：

[1] Hebei Elect Power Design & Res Inst, Shijiazhuang 050031, Hebei, Peoples R China

来源：

Progress in Industrial and Civil Engineering III, Pt 1 | 2014年 / 638-640卷

关键词：

fresh-old concrete; assembled monolithic concrete structure; interface; bearing capacity;

D O I：

10.4028/www.scientific.net/AMM.638-640.250

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fresh-old concrete bonding interface is the key to designing assembled monolithic water-distributing beam of mechanical draft cooling tower. Force mechanism analysis indicated the loading-failure process was closely related to the development of cracks, which, combined with moist circumstance, aggravated corrosion. So the interface must be controlled in uncracked. In the critical condition, aggregate interlock of concrete and dowel action of reinforcement composed the shear strength of interface. Affected by the combined impact of shear force and moment, main rebar is under a state of complex stress, the principal stress of which can be calculated by the forth strength theory. To utilize the rebar completely, the length of rebar in cast-in-site part should abide by the anchorage length.

引用

页码：250 / 254

页数：5