Delayed Shear Crack Formation of Shallow RC Box Culverts in Service

N. Chijiwa, X. Zhu, H. Ohno, S. Tanabe, K. Nakarai, K. Maekawa
2015 CONCREEP 10   unpublished
Long-term excessive deformation of underground RC box culverts in service was monitored over 20 years and its mechanism is analytically discussed in this study. The long-term excessive deformation possibly attributes to synergy effects accompanying delayed shear failure of RC slabs subjected to vertical soil pressures and the time-dependent creep-shrinkage of structural concrete. Special attention is directed to the delayed shear cracking which was actually found in real underground box
more » ... rground box culverts over the service life. The delayed shear crack is experimentally reproduced in the laboratory as well as the multi-scale computational simulation.
doi:10.1061/9780784479346.184 fatcat:xcjsxznuancb7aavq2ivx7hcte