| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcing structure for a hybrid beam that enhances workability when reinforcing a reinforced concrete beam through which an equipment hole is opened, the hybrid beam having an equipment hole that helps mitigate damages at a time of earthquake.SOLUTION: In a reinforced range L3, a rectangular prism demarcated by an upper beam height D1 and a width of a reinforced concrete beam 10B is named a first rectangular prism C1, while a rectangular prism demarcated by a lower beam height D2 and the width of the reinforced concrete beam 10B in the reinforced range L3 as a second rectangular prism C2. The first rectangular prism C1 and the second rectangular prism C2 are assumed as separate columns, for performing design work to withstand bending and shear forces as with an ordinary reinforced concrete column, thus determining amounts of main reinforcing bars and lateral reinforcing bars 16C to 16J of the beam and concrete strength. |
