Rollover instability of precast girders subjected to wind load

The use of longer and deeper precast concrete girders has created concern regarding their rollover instability, particularly during construction. Current design and construction specifications do not provide any specific guidelines that can be used to evaluate the rollover instability of a girder. Therefore, analytical and simplified numerical studies were performed to evaluate the critical wind load, lateral displacement and rotational angle that would induce rollover instability of a girder supported on an elastomeric bearing pad. The influence of the length and section properties of the girder on rollover instability was also investigated. The analytical method proposed in this study can be effectively used for evaluating the lateral behaviour and rollover instability of bridge girders and can also provide management values for securing the lateral stability of girders. The paper also provides a worked problem for a long-span typical European girder to determine critical values with application of the ...

[1]  Richard H. Gallagher,et al.  Finite element analysis of torsional and torsional–flexural stability problems , 1970 .

[2]  G. Dhatt,et al.  Three discrete Kirchhoff elements for shell analysis with large geometrical non‐linearities and bifurcations , 1987 .

[3]  George Laszlo,et al.  Handling and Shipping of Long Span Bridge Beams , 1987 .

[4]  Robert F. Mast.  Lateral Stability of Long Prestressed Concrete Beams Part 1 , 1989 .

[5]  Robert F. Mast.  LATERAL STABILITY OF LONG PRESTRESSED CONCRETE BEAMS - PART 2 , 1993 .

[6]  Norman F. Knight,et al.  Improved assumed‐stress hybrid shell element with drilling degrees of freedom for linear stress, buckling and free vibration analyses , 1995 .

[7]  Bre,et al.  Strength of adjustable props : effect of shear-pin position , 1999 .

[8]  Nur Yazdani,et al.  Validation of AASHTO bearing stiffness for standard precast concrete bridge girders , 2000 .

[9]  Nur Yazdani,et al.  Effect of Bearing Pads on Precast Prestressed Concrete Bridges , 2000 .

[10]  Z. Z. Cen,et al.  Shell element of relative degree of freedom and its application on buckling analysis of thin-walled structures , 2002 .

[11]  M. K. El Debs,et al.  Numerical and experimental analysis of lateral stability in precast concrete beams , 2005 .

[12]  Jong-Han Lee,et al.  Analysis of Thermal Environmental Effects on Precast, Prestressed Concrete Bridge Girders: Temperature Differentials and Thermal Deformations , 2012 .

[13]  Jong-Han Lee,et al.  Investigation of Extreme Environmental Conditions and Design Thermal Gradients during Construction for Prestressed Concrete Bridge Girders , 2012 .

[14]  Jong-Han Lee,et al.  Behavior of precast prestressed concrete bridge girders involving thermal effects and initial imperfections during construction , 2012 .

[15]  Lawrence F. Kahn,et al.  Rollover stability of precast, prestressed concrete bridge girders with flexible bearings , 2012 .

[16]  Khaled M. Heiza.  New finite-element approach for reinforced concrete beams , 2013 .

[17]  T. R. S. Mullapudi,et al.  Non-linear analysis of reinforced concrete walls under three-dimensional loading , 2013 .

[18]  Maurizio Taliano,et al.  Calculation of the ultimate stress of unbonded tendons in prestressed concrete members considering the rotation capacity , 2013 .

[19]  Youngjong Kang,et al.  Performance of a double-skinned composite tubular column under lateral loading: analysis , 2013 .

[20]  Robert L. Vollum,et al.  Comparative assessment of finite-element and strut and tie based design methods for deep beams , 2013 .

[21]  Ahmed Atta,et al.  Strengthening of RC dapped-end beams under torsional moment , 2014 .

[22]  Young Hak Lee,et al.  Torsional behaviour of prestressed concrete girder with precast box segments , 2014 .

[23]  Chadon Lee,et al.  Modelling of load–deflection of concrete beams internally prestressed with unbonded CFRP tendons , 2015 .

[24]  Li Song,et al.  Progressive collapse of RC frame structures after a centre column loss , 2016 .

[25]  Ekkachai Yooprasertchai,et al.  Seismic performance of precast concrete rocking walls with buckling restrained braces , 2016 .

[26]  M. Roderick Jones,et al.  Stability and instability of foamed concrete , 2016 .