| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain both of safety and construction easiness in installing an auxiliary beam.SOLUTION: When an auxiliary beam (21) is attached parallel to an existing beam (15), pair of supports (3) are respectively fixed to a pair of existing column (12). The support (3) has a width dimension equal to or more than a width dimension of the auxiliary beam (21), and includes a horizontal plane (310) having a temporary placement position (312) and a regular position (311). Thus, both ends of the auxiliary beam (21) are first temporarily placed on the temporary placement positions (312) and can be then slid to the regular positions (311). The existing beam (15) and the auxiliary beam (21) are integrally connected together in a state that both the ends of the auxiliary beam (21) are arranged on the regular positions.</p> |
