一种分片装配式变截面箱梁节段的安装及连接方法
By pre-setting main reinforcement through holes in the segmented prefabricated variable cross-section box girder segments and adopting the post-installation reinforcement connection method, the problems of precast block slippage and prestressed duct misalignment were solved, improving the overall structure and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ROAD & BRIDGE INT CO LTD
- Filing Date
- 2023-11-04
- Publication Date
- 2026-07-17
AI Technical Summary
The segmented prefabricated variable cross-section box girder has problems such as slippage of precast blocks, misalignment of prestressed ducts and poor structural integrity during installation and connection, resulting in low construction efficiency and high cost.
The segmental connection is achieved by post-installation of rebar. Vertical and longitudinal main reinforcement through holes are pre-set in each plate unit, and the main reinforcement is connected by threaded sleeves. Combined with post-grouting anchoring, the accuracy and integrity between segments are ensured.
This effectively avoids the slippage of precast blocks and the misalignment of prestressed ducts, improving the overall performance and construction efficiency of the structure and reducing the frequency of measurements.
Smart Images
Figure CN117328372B_ABST