| 摘要 |
PROBLEM TO BE SOLVED: To provide an elevated structure so constructed that energy absorbing members absorb energy and thus a main structure mainly receives a dead load and a live load, to prevent the destruction of joint parts between the energy absorbing member and the main structure. SOLUTION: The elevated structure comprises the rigid-frame main structure made of reinforced concrete and having a plurality of bridge piers 114, and beams 112 and bridge girders 115 mounted on the bridge piers, the energy absorbing members 130 skewingly extending from the bridge piers and each having one end connected to one bridge pier of the main structure and the other end connected to one of the other bridge pier, the bridge girder and the beam of the main structure, and adapted to be expanded in the longitudinal direction for absorbing energy input from the outside, the joint parts 134 provided at the ends of the energy absorbing members for abutting on or coming close to the main structure, and movement constraining members installed on the main structure for constraining the movement of the joint parts while each coming close to or abutting on one end of the joint part. COPYRIGHT: (C)2009,JPO&INPIT
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