A new method to design extended end plate connections and semirigid braced frames

Progressive collapse of multi-storey buildings due to failed floor impact

“…The accuracy of the results presented above is further scrutinized by using a more [7], which represents a major axis partial-depth flexible end-plate beam-to-column joint, is employed at the two beam supports [7,13,15] . Finally, no axial restraint from the adjacent structural members is taken into account.…”

“…Although detailed slab modelling that may provide a more realistic representation of planar membrane effects is not explicitly considered, the developed grillage system provides an approximation of membrane effects via catenary action in the beams, while it is also capable of simulating composite action between the steel beams and the concrete slab on metal decking. More importantly, the adopted approach accommodates detailed mechanical joint models [13,15] that can effectively replicate joint behaviour with respect to both the ductility demand on the individual joint components as well as the interaction between bending moment and axial force, the latter being important when the boundaries of the impacted floor system are subject to considerable axial restraint from the surrounding structure [5,6,13] . Finally, to account for two different scenarios with respect to the location of the impacted floor plate, the transverse primary beam (Fig.…”

Monotonic and Hysteresis Behavior of Semirigid CFT Column-to-Beam Connections with a Top-Seat Angle

“…상･하부 ㄱ형강 접합부는 부분강접 접 합부의 한 형태로 중･저층 건물에 적합하다. 이러한 상･하 부 ㄱ형강 접합부는 실험적 연구 [2], [3], [4] 를 예측을 위한 해석모델을 제안하였으며 [6], [7], [8], [9], [10], [11], [12], [13], [14] , Chen , [15] , Chen 등 [16], [17] , Faella 등 [18], [19], [20] 과 같이 AISC 내진설계 매뉴얼 [22] 에서 제시한 단조증가 반 복하중이력을 이용하였다.…”

Design Formula for the Flexural Strength of a Double Split Tee Connection

“…휨항복 후 소성힌지 발생에 의한 파괴를 유도 [7], [8], [20], [21] 하기 위하여 아래의 식 (1)로 표현되는  ′ 이 1.0 보다 큰 T-stub 을 선택하여 보-기둥 접합부로 사용하였다. T-stub의 기하학 적 형상은 Fig.…”