Study on the Influence of Temperature on the Verticality of Thin-Walled High Pier and the Control Method Based on Measured Temperature

This paper presents a method for controlling the elevation of vertical molds for high piers based on measured temperature fields to address formwork deviation during the construction of the Huibai high-speed Liangshui Super Large Bridge. The study focuses on analyzing the impact of temperature on the verticality of thin-walled high piers using actual temperature field data within the piers. Using finite element software, a physical model of solar-induced temperature difference displacement in thin-walled piers during construction is established, revealing a maximum displacement deviation of 69 mm caused by the solar temperature difference at the top of the pier. The core approach of the method involves utilizing measured temperature field data to predict template offsets, achieved through establishing a finite element model. The calculated maximum displacement deviation of 19 mm due to sunlight-induced temperature difference at the top of the pier meets specifications. The method's effectiveness is verified through actual engineering, accurately predicting template offsets, resolving the issue of limited measurements in stable morning temperatures, and ensuring construction schedule adherence. By integrating measured temperature field data, it effectively controls vertical mold elevation during high pier construction, offering an objective reference for similar projects.