| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction method for a roof supporting framework of a steel-frame building, which is not subjected to interference of a bolt head (nut), even in a bolt arrangement part of a steel-frame joint of the roof supporting framework, and which enables the construction of a structure of a supporting framework for surely supporting a roofing material, without the need for a welding operation, the structure of the supporting framework, and a connecting base for the roof supporting framework. SOLUTION: An adopted technological means is characterized as follows: the connecting base 1, wherein female screw holes 11 and 11 are provided near both ends in a penetrating manner, is arranged in the bolt arrangement part of an H-shaped steel beam butt connection part of an upper flange 21 of an H-shaped steel beam 2, so that both the ends of the base 1 can be inserted into groove parts 41 and 41 of purlins 4 and 4; bridging screws 12 and 12 are screwed into the screw holes 11 and 11 of the connecting base 1, so that the whole of the connecting base 1 can be lifted; both the ends of the base 1 in the state of being inserted into the groove parts 41 of the purlins 4 and 4 are each brought into pressure contact with the grove parts 41; and a roofing material supporting surface is formed by binding and fixing the purlins 4 and 4 and the connecting base 1 together in such a manner that the top surfaces of the purlins 4 and 4 and the top surface of the connecting base 1 are flush with one another. COPYRIGHT: (C)2005,JPO&NCIPI
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