FAILURE OF ARCHES UNDER VARIABLE REPEATED LOADING

THE THEORETICAL ANALYSIS OF THE SHAKEDOWN LOADING OF STRUCTURES APPLYING A BENDING MOMENT AND AN AXIAL THRUST IS DESCRIBED, AND THE LOADS ARE CALCULATED FOR TWO HINGED STEEL CIRCULAR ARCHES WITH I, BOX, OR RECTANGULAR CROSS SECTIONS. THE CALCULATED RESULTS FOR CONCENTRATED, UNIFORMLY DISTRIBUTED, AND THEIR COMBINED LOADINGS ARE COMPARED FOR THE MINIMUM STATIC COLLAPSE LOAD, SHAKEDOWN LOAD, AND ALTERNATIVE PLASTICITY LOAD. /AUTHOR/