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Point Loads on Precast Concrete Floors
Publisher: American Society of Civil Engineers
Abstract: A method of analysis is developed for determining the response of precast concrete floor decks to point loads. Torsion is accounted for, and the method can be applied to a variety of cross sections, including double tees ...
Elastomeric Bearings: State‐of‐the‐Art
Publisher: American Society of Civil Engineers
Abstract: Elastomeric bearings are widely used by structural engineers, but their behavior is not well understood. The paper provides a brief description of the state of knowledge throughout the world with respect to these bearings. ...
Simple Phenomenological Model for Reinforcing Steel under Arbitrary Load
Publisher: American Society of Civil Engineers
Abstract: A new formulation for a robust, yet simple, uniaxial material model for reinforcing steel subjected to arbitrary loading is presented. The model provides steel stress as an explicit function of the total steel strain and ...
Fatigue of Steel‐Reinforced Elastomeric Bearings
Publisher: American Society of Civil Engineers
Abstract: Fatigue is an important design criterion for elastomeric bearings, but it is not well understood. This paper examines the design methods currently in use for controlling fatigue. Twenty‐six fatigue tests were performed to ...
Design of Seismic Restrainers for In-Span Hinges
Publisher: American Society of Civil Engineers
Abstract: A reinforced concrete, box-girder bridge will collapse during an earthquake if the relative displacement between adjacent frames at an in-span expansion joint exceeds the available seat width. To identify factors that most ...
Low‐Temperature Performance of Elastomeric Bearings
Publisher: American Society of Civil Engineers
Abstract: Elastomeric bearings are used in a wide range of structural applications. They support loads and accommodate movements by deformation of the elastomer. It is well known that elastomers may stiffen dramatically at very low ...
Live-Load Distribution Factors in Prestressed Concrete Girder Bridges
Publisher: American Society of Civil Engineers
Abstract: This paper presents an evaluation of flexural live-load distribution factors for a series of three-span prestressed concrete girder bridges. The response of one bridge, measured during a static live-load test, was used to ...
Large-Bar Connection for Precast Bridge Bents in Seismic Regions
Publisher: American Society of Civil Engineers
Abstract: A new beam-to-column connection has been developed for assembling precast concrete bridge bents in regions of high seismicity. The connection is made with a small number of large column bars, which are grouted into large ...
Rotation of High Load Multirotational Bridge Bearings
Publisher: American Society of Civil Engineers
Abstract: High load multirotational (HLMR) bridge bearings are used to support large loads while accommodating rotations resulting from traffic loading, construction tolerances, thermal effects, and other deformations. Pot, disk, ...
Seismic Performance of Precast, Pretensioned, and Cast-in-Place Bridges: Shake Table Test Comparison
Publisher: American Society of Civil Engineers
Abstract: A new bridge system has been developed to (1) reduce on-site construction time by using precast components, (2) eliminate major earthquake damage by utilizing column rocking and confinement of the column ends with a steel ...