| 摘要 |
PROBLEM TO BE SOLVED: To provide a disaster prevention frame body for a frontage, for securing safety by suppressing, as much as possible, the situation that a frame body is deformed and a door or the like cannot be opened or closed in an earthquake disaster and in a fire disaster or the like.SOLUTION: In a disaster prevention frame body for a frontage attached to the frontage of a structure for installing a door, the frame body includes at least an upper frame and left and right vertical frames. The upper frame forms a roughly square cylindrical body, angles are arranged respectively at three corner parts of the cylindrical body, a plurality of reinforcement materials are fixed between the two adjacent angles by welding or bolt fastening or the like so as to be a truss structure, and an upper frame skeleton is configured. The vertical frame is formed into a cylindrical body by a metal thin plate, and a plurality of reinforcement materials are used on at least one surface of the cylindrical body to attain the truss structure. |
