To enhance the collaborative working performance of the newly added brackets and supports on a certain coal conveying bridge under load conditions and to reduce the reinforcement volume of the original structure, this study utilized jacks to implement load relief on the original structure. Through simulation using finite element software with different levels of load relief and relief methods, the changes in internal forces of members, jack readings, and the number of over-limit components were syste-matically compared. The results show that when the deformation of the original structure returns to 0 mm, the load relief degree is optimal, which can simultaneously reduce the internal forces of the structure and decrease the reinforcement workload; during construction, a scheme of overall proportional displacement load relief can be adopted, which enables the internal forces and displacements to change linearly, achieving a safe and controllable transition of the structure to the target load relief state.