Dynamic responses of prestressed bridge and vehicle through bridge–vehicle interaction analysis

Abstract Existence of prestress in bridges affects the dynamic responses of both bridges and vehicles traveling over them. In this paper, the bridge is modeled as a continuous beam with eccentric prestress, and a half-vehicle model with 4 degrees of freedom is used to represent the vehicle passing the bridge. A new bridge–vehicle model with consideration of prestress effect is created through the principle of virtual works to investigate the continuous prestressed bridges and vehicle interaction responses. The correctness and accuracy of the model are validated with literature results and Abaqus model. Based on the created model, numerical simulations have been conducted using the Newmark integration method to perform a parametric study on effects of number of bridge span, span length, eccentricity and amplitude of prestress. It is shown that prestress has a significant effect on the maximum vertical acceleration of vehicles, which may provide a good index for detecting the change of prestress.

[1]  Suren Chen,et al.  Effect of approach span condition on vehicle-induced dynamic response of slab-on-girder road bridges , 2007 .

[2]  S. Timoshenko.  Theory of Elastic Stability , 1936 .

[3]  Yeong-Bin Yang,et al.  EXTRACTING BRIDGE FREQUENCIES FROM THE DYNAMIC RESPONSE OF A PASSING VEHICLE , 2002 .

[4]  T. Kocatürk,et al.  Vibration of viscoelastic beams subjected to an eccentric compressive force and a concentrated moving harmonic force , 2006 .

[5]  F. J. Shaker,et al.  Effect of axial load on mode shapes and frequencies of beams , 1975 .

[6]  Ding Zhou,et al.  Eigenfrequencies of line supported rectangular plates , 1994 .

[7]  Zhi Zhou,et al.  Full-Scale Prestress Loss Monitoring of Damaged RC Structures Using Distributed Optical Fiber Sensing Technology , 2012, Sensors.

[8]  Toshiro Hayashikawa,et al.  Free Vibration Analysis of Continuous Beams , 1985 .

[9]  Suren Chen,et al.  Dynamic Performance Simulation of Long-Span Bridge under Combined Loads of Stochastic Traffic and Wind , 2010 .

[10]  Arun Kumar Pandey,et al.  Damage detection from changes in curvature mode shapes , 1991 .

[11]  Yeong-Bin Yang,et al.  A versatile element for analyzing vehicle–bridge interaction response , 2001 .

[12]  Nathan M. Newmark,et al.  A Method of Computation for Structural Dynamics , 1959 .

[13]  David Cebon,et al.  Dynamic interaction between heavy vehicles and highway bridges , 1997 .

[14]  S. S. Law,et al.  DYNAMIC LOAD ON CONTINUOUS MULTI-LANE BRIDGE DECK FROM MOVING VEHICLES , 2002 .

[15]  Lu Deng,et al.  Development of dynamic impact factor for performance evaluation of existing multi-girder concrete bridges , 2010 .

[16]  A. T. Papagiannakis,et al.  A Coupled honeycomb composite sandwich bridge-vehicle interaction model , 2010 .

[17]  Lu Deng,et al.  Identification of parameters of vehicles moving on bridges , 2009 .

[18]  Luigi Garibaldi,et al.  Dynamics of multi-span continuous straight bridges subject to multi-degrees of freedom moving vehicle excitation , 1999 .

[19]  Reza N. Jazar,et al.  Vehicle Dynamics: Theory and Application , 2009 .

[20]  Michele Dilena,et al.  Reconstruction Method for Damage Detection in Beams Based on Natural Frequency and Antiresonant Frequency Measurements , 2010 .

[21]  Nguyen Phong Dien,et al.  Transverse vibrations of prestressed continuous beams on rigid supports under the action of moving bodies , 2009 .

[22]  Chung Bang Yun,et al.  Identification of prestress-loss in PSC beams using modal information , 2004 .

[23]  L. G. Jaeger,et al.  Dynamics of structures , 1990 .