Modular Girder Bridge for Levee Load Transport
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Solution Overview
Problem
Transporting heavy and oversized loads over obstructions like levees is challenging due to the difficulty in distributing the load's weight without compromising the integrity of the obstruction, and existing modular bridge systems are not adequately suited for such heavy loads, requiring expensive and time-consuming infrastructure modifications.
Innovation Solution
A modular assembly of hingedly connected longitudinal girders that self-support the weight of the load across an expanse, with supports on either side of the obstruction, allowing the load to be transported without applying weight directly to the obstruction, using a system of ramps and transporters to move the load across the girders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If infrastructure modifications are made to transport heavy loads over levees, then the transport capability is improved, but the cost and time consumption increase significantly
Solution Approach 1:
The bridge structure is divided into multiple modular panels that can be assembled in sections. Each panel is a self-contained unit with standardized connections, allowing the bridge to be constructed incrementally without requiring complete infrastructure modification at once. This segmentation enables faster deployment while maintaining structural integrity for heavy load transport.
2Ease of operation
If infrastructure modifications are made to transport heavy loads over levees, then the transport capability is improved, but the cost increases significantly
Solution Approach 1:
The modular bridge panels are designed with universal connection mechanisms and standardized dimensions that can be reused across multiple transport projects. The same panel configuration can accommodate different load weights and span requirements, eliminating the need to design and build custom infrastructure for each transport operation, thereby significantly reducing overall cost.
3Ease of operation
If the levee integrity is compromised for load support, then the transport capability is improved, but the levee integrity deteriorates
Solution Approach 1:
The modular bridge panels serve as an intermediary structure between the transport load and the levee environment. Instead of directly supporting loads on the levee, the bridge panels create a separate load-bearing pathway that spans across the obstruction, transferring loads to abutments on stable ground on either side, thereby protecting the levee integrity while enabling heavy load transport.
4Productivity
If modular bridge systems are used for heavy loads, then the assembly efficiency is improved, but the structural strength must be sufficient for thousands of tons
Solution Approach 1:
Multiple modular panels are combined through standardized connection mechanisms to create a continuous bridge structure capable of supporting heavy loads. The connections are designed to distribute loads across multiple panels and to the abutments, allowing the assembly of high-strength structures from standardized components. This merging approach maintains structural integrity for thousands of tons while preserving assembly efficiency through modular construction.
Data Source
AI summary
A system and method transports a load across an expanse between first and second locations. The first and second locations can be on land and/or water and having a base surface of ground, waterbed, and/or vessel between them. The system includes supports, ramps, and a bridge assembly. The supports mounting on the base surface and are disposed on first and second sides of the expanse. The ramps mount on adjacent ones of the supports and/or on at least one the supports and the base surface. The bridge assembly has one or more longitudinal girders configured to extend parallel to one another across the expanse. Each girder has beams being modular and being hingedly connected end-to-end. Each girder has a first end supported on a first support, has a second end supported on a second support, and has an entire length between the ends that is self-supported. The entire self-supported length supports and transfers weight of the load to the ends supported on the supports. In this way, weight from the load is not transferred to a levee or the like in the expanse.