Abstract: Based on the performance test on the transverse joint of precast-prestressed municipal tunnel， the bending capacity and stiffness calculation models of the transverse joint are given according to the deformation coordination condition and the internal force balance equation， and the influence of prefabricated concrete strain， high strength bolt elongation and joint patchwork crack pattern are also considered in the models. The theoretical results are in good agreement with the existing test results， which verifies the correctness of the calculation model. The research results provide a theoretical basis for the safety evaluation and design optimization of precast-prestressed municipal tunnel.

Key words: precast-prestressed municipal tunnel, transverse joint, high-strength bolt, stiffness, flexural capacity