| 摘要 |
The present invention relates to a moment-resistant structure, sustainer (3), and method of construction for deformably resisting episodic loads and may be utilized in new construction and in rehabilitation of existing construction. Deformation capacity is enhanced by the use of multiple dissipative zones which function in a manner similar to plastic hinges and which are detemined by one or more voids (6a-6f) that are located in the web (4) of a sustainer (3). The voids are of a size, shape, and configuration to assure that the dissipative zones deform inelastically when a critical stress is reached, thereby developing the action of a structural fuse, preventing the occurrence of stress and strain demands sufficient to cause fracture of the connection welds or adjacent heat-affected zones. The sustainers may be removably connected to the remainder of the structure, facilitating replacement after inelastic deformation. Mechanical equipment and utilities may pass through the voids.
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