Design Of Partially Prestressed Concrete Beam-Column Connection With Singly PrestressedSections Under Cyclic Loadings
Prestressed Concrete framed structure are commonly designed to provide presstressing steel to resist gravity loads. Therefore most of the prestressing tendons are located at the top of the beam at beam-column connections. Experimental and numerical non-linear finite element studies developed by the author show that these types of structures are capable to resist severe cyclic loading provided sufficient care is given. Special attention must be considered in the limitation of ductility demand, partial prestressing ratio and detailings in the potential plastic hinge regions. In this paper a simple and semi-rational design method for partially-prestressed interior beam-column connection in proposed. As the behavior of connections are non-flexural, the design method developed is based on major and minor strut modeling using plasticity theory.
The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc.