Design Guidelines for Bolted Single Support Bar Modular Bridge Joint Systems
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Bibliographic Details
| Author(s): |
Sougata Roy
(Sougata Roy LLC, Bethlehem, Pennsylvania, USA)
Frank A. Artmont (Modjeski and Masters, Inc., Mechanicsburg, Pennsylvania, USA) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Engineering the Developing World, Kuala Lumpur, Malaysia, 25-27 April 2018 | ||||
| Published in: | IABSE Conference Kuala Lumpur 2018 | ||||
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| Page(s): | 709-716 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/kualalumpur.2018.0709 | ||||
| Abstract: |
A comprehensive experimental and analytical study was performed to characterize the dynamic behavior of typical bolted single support bar (SSB) modular bridge joint systems (MBJS) under wheel loads and to determine the fatigue resistance of the center beam-support bar (CB-SB) connections within these systems. The study included static and fatigue testing of full-size SSB systems in the laboratory, characterization of suitable material models for the nonlinear rate-dependent polymeric components, static analyses of the tested system, and parametric 3D Finite Element Analyses (FEAs) of systems subjected to dynamic loading. The study established the infinite life fatigue resistance of bolted CB-SB connections as that of AASHTO Category B, characterized the behavior of the CB-SB connection and the influence of joint precompression level and polymeric materials, and quantified the dynamic amplification factor (DAF) for SSB MBJS as a function of the system parameters. Design guidelines for SSB MBJS were developed, and the AASHTO LRFD Bridge Design and Construction Specifications were revised based on the key findings of this study. |
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| Keywords: |
fatigue finite element analysis FEA structural dynamics full-scale testing dynamic amplification factor modular bridge expansion joints infinite life AASHTO specifications
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