| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an underground structure for allowing easy bar arrangement work in a transition section from a concrete skeleton to a steel shell skeleton. <P>SOLUTION: The underground structure includes a lower concrete skeleton C and a steel shell skeleton B, the lower concrete skeleton C having a floor slab part C1 in a concrete structure, the steel shell skeleton B having a plurality of floor slab steel segments 30, 30, ... provided side by side at positions adjacent to the floor slab part C1, the floor slab steel segment 30 including a bottomed box-shaped body part 3A whose upper face is open, and embedded main girders 3B and 3B extending from the body part 3A, the body part 3A being joined to the end of a main steel frame 71. <P>COPYRIGHT: (C)2012,JPO&INPIT |
