Mechanical Characteristics for Prestressed Composite Circular Structure Consisting of Precast Concrete Blocks and Steel Pipe Pile

Abstract

The prestressed composite circular structure was introduced for marine structures, which is composed by precast concrete blocks, filledin concrete and outer ribbed steel pipe pile. In order to verify the mechanical characteristics for such structure, the loading tests were conducted. The results of the tests are :
1) Structural integrity is secured.
2) Structural Strengths and displacements can be obtained by the conventional theoretical approach.
3) Approximate crack widths can be obtained by the conventional formulas.