Dent 손상을 갖는 원통부재의 굽힘강도에 관한 연구

Abstract

Several types of steel structures which are employed in offshore petroleum activities are constructed with tubular members. These structures are usually subjected to various types of loads such as normal functional loads and environmental loads. Furthermore, accidental loads may also act 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 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 behavior of such damaged members. And the results of analysis are checked against of experiment results.