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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Moment Connections"”.
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Application of Ductile Yield Link in Glulam Moment Connections
Wood beam-column connections have traditionally been designed as simple shear connections, ignoring their potential moment capacity. A major reason for not utilizing such moment connections is linked to the brittle limit states that wood components exhibit. The purpose of this research was to …
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Evaluation of Extended End-Plate Moment Connections Under Seismic Loading
… was conducted to study the extended end-plate moment connections subjected to cyclic loading. Seven specimens representing three end-plate moment connection configurations commonly used in the pre-engineered building industry were used. The connections were designed using yield-line theory to …
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Evaluating the Fracture Potential of Steel Moment Connections with Defects and Repairs
Steel moment frames are a popular seismic-force resisting system, but it is believed that they are susceptible to early fracture if there is a stress concentration in the plastic hinge region, also known as the protected zone. If a defect is present in this area, it may be repaired by grinding …
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Unified Design of Extended End-Plate Moment Connections Subject to Cyclic Loading
… design procedures for eight extended end-plate moment connection configurations subject to cyclic/seismic loading. In addition, the suitability of extended end-plate moment connections for use in seismic force resisting moment frames was investigated. Eleven full-scale cyclic and nine monotonic …
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Evaluation of the Inelastic Rotation Capability of Flush End-Plate Moment Connections
… inelastic rotation capability of flush end-plate moment connections. Seven specimens representing two-bolt and four-bolt flush end-plate configurations were tested under cyclic loading. "Quasi-static" or "slow-cyclic" loading histories suggested by SAC and the Applied Technology Council were used …
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Response of Cyclically Loaded Extended End-Plate Moment Connections When Used With Welded Built-Up Sections
… to study the behavior of extended end-plate moment connections subjected to cyclic loading. Eleven specimens were tested, representing typical connection configurations used in the metal building manufacturing industry. Four of the beams were shallow (30 in. or less), and seven were deep (60 …
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Evaluating the Effect of Decking Fasteners on the Seismic Behavior of Steel Moment Frame Plastic Hinge Regions
A series of full-scale beam-to-column moment connection tests were completed to determine the effects of powder actuated fasteners (PAF) and puddle welds on the seismic behavior of steel moment connections. In seismic regions, PAF are currently prohibited in the connection region (referred to as …
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Effect of Continuity Plate Eccentricity on the Performance of Welded Beam-to-Column Connections
<p>Beam-to-column connections in structural steel buildings may have varying degrees of rotational restraint and varying degrees of moment transfer. In fully restrained moment connections, shear is typically transferred through the beam web, while the moment is mostly transferred through the beam …
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Computational simulation and analytical development of Buckling Resistant Steel Plate Shear Wall (BR-SPSW)
… and excessively large boundary elements with moment connections, neither of which is economically desirable. Moreover, SPSW also suffers from buckling at small loads which results in highly pinched hysteretic behavior, low stiffness, and limited energy dissipation. To mitigate these …
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Computational Investigation of Tunable Steel Plate Shear Walls for Improved Seismic Resistance
… direction. To compensate for these shortcomings, moment connections are required at the beam to column connections to improve energy dissipation, increase stiffness, and provide lateral resistance during load reversal. The resulting SPSW designs with very thin web plates, moment connections, and …
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Effect of stressed skin action on the behaviour of cold-formed steel portal frames with non-linear flexible joints and top-hat purlins
… as follows:1) Resistance and stiffness of bolted moment-connections. The bearing resistance and stiffness of the threaded bolt shank in single and double shear lapped connections were tested and compared against design recommendations.The existing methods for deriving the moment resistance and the …
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Seismic Evaluation of Welded Moment-resisting Connections
Welded moment-resisting connections are used in the rigid frames of high-rise buildings. Most of the standards specify full penetration butt welds as a suitable type of weld for welding beam flanges to the column flange in seismic areas. New Zealand’s steel design standard is the only standard that …
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Applying "Design for Disassembly" to connection design in steel structures
… of bolts and welds, proper orientation of moment connections when required, and avoidance of connection details that demand coping of members. Structural engineers should also advance DfD by exploring innovations in connection design, such as standardized systems of components and clamped …
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Application of the Finite Element Method to the Seismic Design and Analysis of Large Moment End-Plate Connections
Due to problems associated with welded moment connections uncovered after the Northridge earthquake, large bolted connections are becoming a much more attractive alternative for design in seismic regions. However, stringent design requirements established by the AISC Seismic Provisions for …
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Development and Validation of a Twelve Bolt Extended Stiffened End-Plate Moment Connection
Three end-plate moment connection configurations are prequalified for special moment frames for seismic applications in AISC 358-10. The eight bolt extended stiffened connection is the strongest of the three configurations, but it can only develop approximately 30 percent of currently available …
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Stiffener Design for Beam-to-Column Connections
… the strength of the column is exceeded but full moment strength of the beam section is desired. In determining the design of column stiffeners, there are no specifications for determining the distribution of load between the column web and stiffeners. The AISC Load and Resistance Factor Design …
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Evaluation of force distribution within a dual special moment-resisting and special concentric-brace frame system
… are currently required by code to include a Moment Resisting Frame capable of resisting at least 25% of the lateral loads. This thesis evaluates the seismic performance of a specific type of dual system: a Special Moment Resisting Frame-Special Concentric Brace Frame System (SMRF-SCBF) under …
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Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings
… were comprised of concrete shearwalls and steel moment frames in the north/south direction and moment frames in the east/west direction. The retrofit strengthened the moment connections and added braces to the perimeter walls in the east/west direction.</p> <p> The natural frequencies were found …
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Developing and Validating New Bolted End-Plate Moment Connection Configurations
This research has been aimed to introduce larger moment carrying connections for any type of buildings, in particular the metal building industry. A total of four connection configurations, namely eight-bolt extended four wide, eight-bolt extended stiffened, six bolt flush unstiffened and twelve …