| 摘要 |
PURPOSE: To facilitate execution of work by using an intersenting site of structural steel frame H-sections under a lining sheet of a working platform so as to mount a support member and spanning a passage member between the support members and installing a temporary passage to the working platform. CONSTITUTION: A support member 10, which is supportable with an H-section mounting part 30, is mounted at an intersection site of H-sections wherein a lower H-section 100 under a lining sheet of a working platform and an upper H-section 200 are intersected with each other at a right angle. In this support member 10, the H-section mounting part 30 and a passage loading part are integrally installed in the form of a crank. In addition to that, two L-section-made arm members 11 and a riser member 12 are integrally molded in the form of a crank. Then, only two metal-surfaced frames in rectangular lattice shapes are one piece-molded and a passage member 20 covered with expanded metals on the side of a passage surface 21 is spanned on the support member 10, thereby forming a temporary passage A. It is, therefore, possible to construct the temporary passage with more ease and safety on the side surface of the working platform. |
