Mechanical properties analysis of a cable-stayed bridge without backcables under the influence of temperature and inclination angle

Cable-stayed bridge without backcables is an important branch of the cable-stayed bridge family. It tilts the bridge tower to one side and removes the cable behind it. It balances the cable force of the cable-stayed cable with its own weight. This paper relies on the construction project of the main bridge of Jinzhou Bridge, and uses finite element analysis software to establish a space model to simulate and analyze the construction process, focusing on the influence of the bridge tower inclination and temperature. When the inclination angle of the bridge tower changes within a certain range, it has little effect on the stiffness and strength of the structure, but under the condition that the stress of the tower girder is roughly the same, the greater the inclination angle of the tower, the greater the counterweight of the tower, and the greater the material consumption of the tower. Angle of the tower, the greater the counterweight of the tower, and the greater the material consumption of the tower. When the bridge tower is 52°, 55° and 58°, the stress on the left side of the bridge tower is -5.8MPa, -4.1MPa and 0.7MPa, respectively. Received:                                                   10.08.2024 Received in revised form:                   01.01.2025 Accepted:                                                   24.07.2025