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Concrete-Steel Composite Coupling Beams. I: Component Testing
Publisher: American Society of Civil Engineers
Abstract: A viable alternative to reinforced concrete coupling beams with heavily reinforced diagonal struts is steel or steel-concrete composite beams. A limited number of previous studies have examined various issues related to ...
Concrete-Steel Composite Coupling Beams. II: Subassembly Testing and Design Verification
Publisher: American Society of Civil Engineers
Abstract: As shown in a companion paper, the embedment length of steel-concrete composite coupling beams inside wall piers should be computed by incorporating the contribution of the encasement. In lieu of detailed fiber-based ...
Retrofit of a Three-Span Slab Bridge with Fiber Reinforced Polymer Systems—Testing and Rating
Publisher: American Society of Civil Engineers
Abstract: A 45-year old, three-span reinforced concrete slab bridge with insufficient capacity was retrofitted with 76.2- and 127-mm wide bonded carbon fiber-reinforced polymer (FRP) plates, 102-mm wide bonded carbon FRP plates with ...
Comparison between ACI and AISC for Concrete-Filled Tubular Columns
Publisher: American Society of Civil Engineers
Abstract: A wide range of experimental data and associated analytical results are used to examine the applicability of two widely used design codes (i.e., ACI and AISC) for calculating the capacity of concrete-filled steel tubular ...
Seismic Design and Performance of Composite Coupled Walls
Publisher: American Society of Civil Engineers
Abstract: The cyclic response of steel coupling beams embedded into reinforced concrete boundary elements was studied. Three half‐scale subassemblies representing a portion of a prototype structure were designed, constructed, and ...
Large-Scale Testing of a Replaceable “Fuse” Steel Coupling Beam
Publisher: American Society of Civil Engineers
Abstract: When coupled core wall (CCW) systems are built in regions of high seismicity, the ductility demands on the coupling beams can be of critical concern. Steel coupling beams, whether encased in concrete or not, offer a very ...
Outrigger Beam–Wall Connections. I: Component Testing and Development of Design Model
Publisher: American Society of Civil Engineers
Abstract: A key factor behind successful performance of outrigger beam–core wall connections in hybrid structures is the adequacy of headed studs that are typically used to connect a stud plate, onto which the outrigger beam is ...
Outrigger Beam–Wall Connections. II: Subassembly Testing and Further Modeling Enhancements
Publisher: American Society of Civil Engineers
Abstract: Adequate strength of headed studs under cyclic loads is a prerequisite for satisfactory performance of outrigger beam–core wall connections that commonly use multiple headed studs. Previous studies have typically not ...
Performance of Overlays Placed Over Sealed Decks under Static and Fatigue Loading
Publisher: American Society of Civil Engineers
Abstract: In order to enhance the effectiveness of portland cement overlays placed over existing bridge decks, the deck may be sealed with an acceptable sealer before placing the overlay. The main purpose for such a treatment of the ...
Response of Slab Bridges Before, During, and After Repair
Publisher: American Society of Civil Engineers
Abstract: Continuous reinforced concrete slab bridges rely on reinforcing steel bars near the top of the deck over the piers to carry negative moment. Transfer of forces in these bars may be jeopardized by deterioration and repair ...