Sectional Lane-Supporting Bridge Intermediate Adapter Design
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Solution Overview
Problem
Detachable track carrier bridges face limitations in span length due to high weight, requiring high leverage forces and restrictive counterweights, and existing systems are inflexible in accommodating different track carriers and front-end carriers, limiting their versatility.
Innovation Solution
The use of intermediate adapters that connect track carriers and front-end carriers detachably, allowing for variable configurations and independent transport, enabling the same front carrier to work with different track carriers and adapters, and the laying arm to move sections independently for efficient assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If track girders are made of high-strength material to increase span length, then the achievable spans are improved, but the weight of the track girders increases significantly
Solution Approach 1:
The bridge is divided into multiple individual sections (cantilever girders and track girders) that can be transported separately and assembled on-site. This segmentation allows each section to be optimized for transport weight while achieving long spans through assembly of multiple sections.
Solution Approach 2:
Cantilever girders are installed first to bridge the entire span before track girders are added. This preliminary action creates a support structure that eliminates the need for large counterweights during installation, reducing the leverage forces required.
2Ease of operation
If cantilever girders and track girders are divided into individual sections to facilitate transport, then the ease of transport is improved, but the complexity of connecting sections increases
Solution Approach 1:
Connection elements serve as intermediaries between cantilever girders and track girders, simplifying the assembly process. These standardized connection components enable quick attachment and detachment of sections without requiring complex field fabrication or alignment procedures.
3Ease of manufacture
If track girders are adapted to both the laying arm and intermediate frame to enable installation, then the ease of installation is improved, but the adaptability to different bridge systems is reduced
Solution Approach 1:
The connection elements are designed with universal interfaces that can accommodate different track girder configurations and laying arm systems. This universality allows the same connection components to be used across various bridge systems and specifications, enhancing interoperability while maintaining ease of installation.
Solution Approach 2:
The connection system allows for dynamic adjustment and reconfiguration during assembly. Connection elements can be easily attached, detached, and repositioned to accommodate different bridge configurations, span lengths, and track girder types, providing flexibility without compromising installation simplicity.
Data Source
Figure 1
Figure 2
Figure 3a~3d
AI summary
The invention relates to a sectional lane-supporting bridge comprising a launcher support (14), at least one lane support (1, 2, 101, 102), and an intermediate adapter (7) between the launcher support (14) and the lane support (1, 2, 101, 102). The invention further relates to an apparatus for laying the sectional lane-supporting bridge, comprising a laying arm (8), to a corresponding laying vehicle (100) on which the laying apparatus is arranged, and to a method for laying the bridge using the laying apparatus.