| 摘要 |
PROBLEM TO BE SOLVED: To provide technique in which high flexural rigidity and high torsional rigidity are imparted to the structure of the lower floor slab of a deck type prestressed-concrete suspension bridge. SOLUTION: In a composite suspension floor slab 10, composite steel pipes 20 in which steel pipes 21 for a general structure are covered with a high toughness cement composite material 22 are used as left-right suspension main cables, and the composite suspension floor slab has composite floor slabs 30 composed of steel plates 31 covered with the high toughness cement composite materials 32 of upper-lower two layers horizontally connecting the composite steel pipes 20. PC steel materials are inserted into inserting holes 23, and used as the lower floor slab of the suspension bridge. COPYRIGHT: (C)2004,JPO |
