Dynamic Amplification Factor of Shear Force on Bridge Columns under Impact Load

Seismic Performance of Square RC Bridge Columns under Combined Loading including Torsion with Low Shear

During earthquake excitations, reinforced concrete bridge columns can be subjected to a combination of axial load, shear force, flexural moments, and torsional moments. The torsional moment can be much more significant in columns of bridges that are skewed, curved, have unequal spans, or unequal column heights. Combined loading including torsion can result in complex flexural and shear failure ...

Feasibility Study on Dynamic Bridge Load Rating

Static and Dynamic Measurement of Force Transducer’s Deformation under Load

− At PTB, one designed and investigated measurement setups to determine the deformation of force transducers while applying a static or dynamic force. To measure the deformation, a differential vibrometer [1] is used which is integrated in the measurement setups. Using the deformation results one is able to calculate the transducers stiffness. An evaluation of the measurement uncertainty is pre...

Analysis of Dynamic Properties of Piezoelectric Structure under Impact Load

Abstract: An analytical model of the dynamic properties is established for a piezoelectric structure under impact load, without considering noise and perturbations in this paper. Based on the general theory of piezo-elasticity and impact mechanics, the theoretical solutions of the mechanical and electrical fields of the smart structure are obtained with the standing and traveling wave methods, ...

Consequences of Strong Vertical Accelerations on Shear Demand and Capacity in Bridge Columns

Strong vertical ground motions can significantly alter axial forces in a bridge column. Axial force variations also affect the concrete contribution to the shear capacity of a reinforced concrete (RC) member. However, the effect of axial force demands on shear capacity is a fairly complex issue since the shear demand in an RC bridge column is affected by variations in the axial force. A combine...