손상을 받은 원통부재의 최종강도에 관한 연구

Abstract

Several types of steel structures which are employed in offshore petroleum activities are constructed with tubular members. These structures are sometimes subjected to accidental loads on the leg or bracing members due to supply boat collisions and objects droppings from platform decks. The extent of damage caused by these loads ranges from total collapse of the structure to small damage which may not have serious consequence at the time of accident. To make optimal design decisions regarding structural safety and economical efficiency, it is very important to be able to assess the influence of damages on the performance of damaged structural members. In this study, a series of calculations is performed to study the effects of different parameters on the load carrying capacity of such damaged members under various loading. And the results of analysis are compared with experiment results.