Telescoping Bridge Jacking Assembly for Stable Support
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Solution Overview
Problem
Conventional bridge support systems during rehabilitation are time-consuming, hazardous, and cause significant traffic disruption and potential instability, posing risks due to their large and temporary nature.
Innovation Solution
A bridge support system utilizing a bridge-jacking abutment lever assembly with telescoping arms and high-strength components that can be easily installed to lift and support bridges, minimizing traffic disruption and ensuring stability by dissipating loads efficiently through adjustable bearing assemblies and hydraulic jacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional temporary bridge support structures (towers, construction structures, cranes) are used, then bridge support during rehabilitation is provided, but installation time is substantial and traffic disruption is extensive
Solution Approach 1:
The bridge support system is divided into multiple independent jack assemblies that can be installed separately at different locations along the bridge. Each jack assembly functions as an independent support unit, allowing for parallel installation and reducing overall installation time while maintaining reliable support through distributed loading.
Solution Approach 2:
The patent replaces conventional mechanical support structures (towers, cranes, temporary construction structures) with a hydraulic-based system. Hydraulic jacks provide the necessary lifting and support forces, eliminating the need for large mechanical structures that require extensive installation time and create traffic disruptions.
2Reliability
If large temporary support structures are used, then bridge support is provided, but hazard level increases due to proximity to roadways and flood paths
Solution Approach 1:
By segmenting the support system into multiple small jack assemblies distributed along the bridge, the system eliminates the need for large concentrated structures that would obstruct roadways or flood paths. Each small assembly can be positioned in locations that minimize interference with traffic and environmental hazards.
Solution Approach 2:
The jack assemblies are positioned underneath the bridge structure, utilizing the vertical dimension and the space between the bridge deck and the roadway below. This positioning allows support structures to be out of the way of horizontal traffic flow and flood paths while still providing effective support.
3Reliability
If conventional temporary support structures are used, then bridge support is provided, but device complexity and potential instability increase
Solution Approach 1:
The patent replaces complex mechanical support structures with a simpler hydraulic system. Hydraulic jacks inherently provide stable support through fluid pressure, eliminating the need for complex mechanical linkages, bracing, and stabilization mechanisms required by conventional temporary structures.
Solution Approach 2:
The jack assemblies serve multiple functions: they provide lifting force, maintain support during rehabilitation, and can be adjusted or removed as needed. This multi-functionality reduces the need for additional specialized components, simplifying the overall system while maintaining reliability.
Data Source
AI summary
A bridge support system includes a telescoping arm extending from a first end to a second end, the telescoping arm having a first arm section; a second arm section, the second arm section is configured to slidingly engage with the first arm section; a locking pin to secure the second arm section in a fixed position; a lower bearing assembly pivotally attached to the first end of the telescoping arm, the lower bearing assembly having a bearing plate pivotally attached to the first end of the telescoping arm via a pivot pin, the bearing plate is configured to engage with a ground surface; an upper bearing assembly pivotally attached to a jacking beam support, the upper bearing assembly having a plurality of holes for selective adjustment of the upper bearing assembly relative to the jacking beam support; and a jacking beam secured to the jacking beam support and secured to a bridge member.