关键词: 孟楼渡槽, 单跨, 槽身, 吊装, 钢筋应力, 监测分析

Abstract: Menglou aqueduct is the heaviest prefabricated rectangular aqueduct in China. The single span is 30 m long and 1 200 tons heavy. The groove body has a large span with complex structure, thinwall, and three directional pre-stressed. Stress monitoring of the steel bar in the groove body is carried out before and after its hoisting and installation, with the aim to understand the stress changes, control the lifting parameters and guide the follow-up construction of aqueduct.

Key words: Menglou aqueduct, single span, groove body, hoisting and installation, reinforcement stress, monitoring and analysis