| 摘要 |
PROBLEM TO BE SOLVED: To easily and surely integrate a steel structural material with concrete around the steel structural material. SOLUTION: The steel structural material (a steel girder 11) is covered with the expanding material-added concrete 14, and the concrete expands, and is densely filled in the periphery of the steel structural material, and also presses a surface of the steel structural material. By adding fiber to the concrete 14, when the concrete 14 covering the steel structural material tries to expand in the direction for separating from the steel structural material, the fiber restricts this expansion. By forming a plurality of through-holes 15 in the steel structural material, the concrete 14 is also filled in the through-holes 15, to enhance sticking performance of the concrete 14 and the steel structural material. Thus, the concrete 14 and the steel structural material can be surely integrated. COPYRIGHT: (C)2006,JPO&NCIPI |
