|
Title |
Development of Performance Based Resistance Capacity Evaluation Method for RC Compression Member under Vehicle Impact Load
|
|
Authors |
김장호 ; 이나현 ; 판덕헝 ; 김성배 ; 이강원 |
|
Keywords |
압축부재 ; 차량 충돌하중 ; Bayesian 통계방법 ; 만족도 곡선 ; 성능기반 저항성능 평가방법 compression member ; vehicle impact load ; Bayesian probabilistic method ; satisfaction curve ; performance based resistance capacity evaluation method |
|
Abstract |
Recently, the probability of collision accident between vehicles or vessels and infrastructures are increasing at alarming rate. Particularly, collision impact load can be detrimental to sub-structures such as piers and columns. The damaged pier from an impact load of a vehicle or a vessel can lead to member damages, which make the member more vulnerable to impact load due to other accidents which. In extreme case, may cause structural collapse. Therefore, in this study, the vehicle impact load on concrete compression member was considered to assess the quantitative design resistance capacity to improve, the existing design method and to setup the new damage assessment method. The case study was carried out using the LS-DYNA, an explicit finite element analysis program. The parameters for the case study were cross-section variation of pier, impact load angle, permanent axial load and axial load ratio, concrete strength, longitudinal and lateral rebar ratios, and slenderness ratio. Using the analysis results, the performance based resistance capacity evaluation method for impact load using satisfaction curve was developed using Bayesian probabilistic method, which can be applied to reinforced concrete column design for impact loads.
|