Corrugated pipe connection device for continuous section at top of continuous T-shaped beam bridge pier and usage method
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Solution Overview
Problem
The construction of continuous T-shaped beam bridges faces challenges such as poor sealing performance of tapes used for sealing cutting openings, leading to slurry leakage, and manual stranding of steel strands at anchor holes due to lack of operating platforms, which is slow and dangerous.
Innovation Solution
A corrugated pipe connection device comprising a combined steel pipe telescopic device and corrugated pipe connector, with clamping members and telescopic features, allowing for secure connection and adjustment to accommodate stranding machines, thereby replacing conventional corrugated pipes and preventing slurry leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a reserved corrugated pipe is cut and a stranding machine is used to operate on an erected T-shaped beam, then construction speed is improved, but sealing performance deteriorates causing slurry leakage
Solution Approach 1:
A telescopic steel pipe is introduced as an intermediary component between the corrugated pipe and the stranding machine. The telescopic steel pipe extends from the corrugated pipe to provide a stable operating platform for the stranding machine, while the corrugated pipe maintains its sealing function. This intermediary structure allows the stranding machine to operate without compromising the sealing performance of the corrugated pipe connection.
2Reliability
If the reserved corrugated pipe is not damaged and stranding is performed at anchor holes of steel strands, then sealing performance is maintained, but construction speed deteriorates due to manual stranding
Solution Approach 1:
The steel pipe is designed with telescopic capability, allowing it to dynamically adjust its length. When the stranding machine is needed, the steel pipe extends to provide an operating platform, enabling mechanized stranding operations. When not in use, the steel pipe retracts to maintain the original corrugated pipe structure and sealing performance. This dynamic adjustment resolves the contradiction between maintaining sealing and enabling fast mechanized construction.
3Ease of operation
If stranding is performed manually at anchor holes due to lack of operating platform, then construction safety is improved by avoiding dangerous operations, but construction speed deteriorates
Solution Approach 1:
The telescopic steel pipe serves as a safe intermediary platform that allows the stranding machine to operate at a stable, elevated position rather than requiring workers to manually handle steel strands at anchor holes. This intermediary structure provides a secure operating platform for mechanized equipment, eliminating the need for dangerous manual operations while maintaining high construction speed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures secure and efficient stranding of steel strands without pipe breakage, eliminating slurry leakage and enabling faster construction by allowing mechanized operations, thus improving construction safety and efficiency.
Implementation Method 1
the sliding pipes stretch out and draw back through rolling of rolling members
Implementation Method 2
an inner wall surface of the first contact member is foam with raised particles; and an outer wall surface of the second contact member is with raised rubber pellets, which increases the friction between the second contact member and the corrugated pipe
Implementation Method 3
the rotating nut rotates to gradually compress the first contact member, to ensure close contact between the first contact member and the corrugated pipe
Data Source
AI summary
A corrugated pipe connection device for a continuous section at the top of a continuous T-shaped beam bridge pier. The connection device includes a combined steel pipe telescopic device and a corrugated pipe connector, the interiors being hollow; the connector includes a first clamping member for clamping a wall surface of a corrugated pipe; one end of the telescopic device is a second clamping member with the same structure as the first; the other end is a telescopic steel pipe which is telescopic in the length direction; and the telescopic steel pipe is connected to the connector. The device replaces a corrugated pipe between two T-shaped beams, thereby avoiding problems such as breakage and slurry leakage caused by an original construction mode. The device can stretch out and draw back according to a distance between the T-shaped beams, and steel strands can be stranded by means of a stranding machine.