Behavior of Steel Moment Frames Using Top-and-Seat Angle Connections under Various Column-Removal Scenarios [PDF]
Top-and-seat angle connection is a conventional type of steel moment connection. However, its capacity in accommodating columns loss is rarely studied. In this study, five multi-story steel moment sub-frames using top-and-seat angle connection were fabricated and tested to investigate their performance subjected to various column removal scenarios ...
Kai Qian, Xi Lan, Zhi Li, Feng Fu
openalex +3 more sources
Effect and evaluation of prying action for top- and seat-angle connections [PDF]
Nonlinear finite element (FE) static analyses of top- and seat-angle connections were performed using ABAQUS standard to investigate the influence of connection parameters and its properties on prying action developed due to the interaction between column flange and top angle’s vertical leg. Contact phenomenon between two interfaces with finite sliding
Ali Ahmed, Rafiq Hasan
openalex +2 more sources
Top-and-Seat-Angle Connections and End-Plate Connections: Snug vs. Fully Pretensioned Bolts
The effect of partially pretensioned bolts has been examined through research conducted at the ATLSS center of Lehigh University. Extended end-plate and top-and-seat-angle connections incorporating fully pretensioned and snugtight bolts were tested. Fully pretensioned bolts were tightened to 70% of their ultimate strength (as specified by AISC), and ...
Robert B. Fleischman +3 more
openalex +3 more sources
Low-Cycle Fatigue Behavior of Semi-Rigid Top-and-Seat Angle Connections
Constant amplitude reversed cyclic load tests were performed to investigate the low-cycle fatigue behavior of a commonly used class of semi-rigid connection: the top-andseat angle. All specimens had the same geometrical properties. The test results show that the plastic moment capacity and connection stiffness are sensitive to how the nut and bolts are
John B. Mander +2 more
openalex +3 more sources
Errata: Design Tables for Top- and Seat-Angle with Double Web-Angle Connections
Errata
Yosuk Kim, Wai‐Fah Chen
openalex +3 more sources
Stainless steel top-seat angle beam-to-column connection: Full-scale test and analytical modelling
Abstract Stainless steel (SS) is increasingly used for structural applications in the construction industry as its beneficial properties outweigh initial material costs when sustainability aspects and the whole life cycle of structures are appropriately accounted for in the structural design. Despite the well-recognised significance of connections in
Mohammad Jobaer Hasan +4 more
openalex +4 more sources
Low-Cycle Variable Amplitude Fatigue Modeling of Top-and-Seat Angle Connections
A set of variable amplitude tests was performed on a commonly used type of semi-rigid connection: the top-and seat angle. Variable amplitude tests included incremental decremental and step tests to investigate the sequence effects on cyclic and low-cycle fatigue behavior for this class of beam column connection.
John B. Mander +2 more
openalex +3 more sources
Failure Behavior of a Top and Seat Angle Bolted Steel Connection with Double Web Angles
AbstractThe article presents a three-dimensional nonlinear finite-element model that was developed for the study of a top and seat angle bolted steel connection with double web angles. Unilateral contact and friction laws were used to simulate the interaction among the connected parts. Large displacements as well as the von Mises failure criterion were
Khairedin M. Abdalla +2 more
openalex +3 more sources
Prediction of moment–rotation characteristic of top- and seat-angle bolted connection incorporating prying action [PDF]
Finite element (FE) analyses were performed to explore the prying influence on moment–rotation behaviour and to locate yielding zones of top- and seat-angle connections in author’s past research studies. The results of those FE analyses with experimental failure strategies of the connections were used to develop failure mechanisms of top- and seat ...
Ali Ahmed
openalex +2 more sources
DESIGN OF PR FRAMES WITH TOP AND SEAT ANGLE CONNECTIONS USING THE DIRECT ANALYSIS METHOD [PDF]
Rampal Singh, Eric M. Lui
openalex +2 more sources

