To solve the problem of shear failure occurring in ordinary concrete pipe gallery manhole joints(NC joints)under large loads,a form of UHPC-NC joint was proposed,,where Ultra-High Performance Con-crete(UHPC)was locally applied to the manhole joint area of the pipe gallery.Three types of pipe gallery man-hole models using UHPC-NC joints were established using ABAQUS finite element software.The effects of pa-rameters such as joint height,bolt preload force,and UHPC strength on the shear resistance performance of UHPC-NC joints were systematically analyzed.The results showed that with the increasing of the joint height,bolt preload force,UHPC strength,and the number of bolts,the shear bearing capacity and stiffness of allthree types of UHPC-NC joint pipe gallery manholes were enhanced.However,the increasing joint length reduced the stiffness of these three types of UHPC-NC joint pipe gallery manholes.
Pipe gallery working shaftUHPC-NC jointsShear resistance performanceParameter analy-sis
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