Bridge Sleeper Pad With Reactive Resin Bags
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Solution Overview
Problem
The existing methods for bridge sleeper supporting pads require labor-intensive processing to form recesses that fit with rivet projections on bridge beams, and replacing enhancing plates also requires significant time and labor due to the need for matching recesses.
Innovation Solution
A bridge sleeper supporting pad made from a synthetic resin sheet with a main bag and sub-bag system, where external pressure mixes reaction solutions to adjust thickness and eliminate the need for recesses, using a sub-bag with compartments that communicate and have easily peeled sealed portions to remove excess material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a recess is formed on the back face of the bridge sleeper to fit the rivet projection, then the bridge sleeper can be properly supported on the bridge beam, but significant time and labor are required for processing
Solution Approach 1:
The invention extracts the problematic rivet projection from the bridge beam and transfers its function to the bridge sleeper. By forming a recess in the bridge sleeper that receives the rivet projection, the support function is achieved without requiring corresponding recesses in enhancing plates or other components, thereby reducing overall processing time and labor
Solution Approach 2:
The recess is pre-formed in the bridge sleeper during manufacturing, allowing for quick installation without requiring on-site processing. This preliminary preparation eliminates the need for time-consuming field operations to create matching recesses in enhancing plates or other components
2Strength
If enhancing plates are used to support the bridge sleeper, then the supporting structure is reinforced, but replacing decayed enhancing plates requires forming new recesses which consumes additional time and labor
Solution Approach 1:
The bridge sleeper with the pre-formed recess serves multiple functions: it provides structural support, accommodates the rivet projection, and enables quick replacement of enhancing plates. The universal design allows the same recess structure to be used regardless of which enhancing plate is installed, streamlining the replacement process and improving productivity
Solution Approach 2:
The enhancing plates are designed as replaceable, short-lived components that can be quickly swapped when decayed. The pre-formed recess in the bridge sleeper allows these enhancing plates to be installed and replaced without complex processing, making the replacement process efficient and cost-effective
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
This solution allows for efficient adaptation to rivet projections without forming recesses, reduces processing time, and ensures strong pressing under load, with the ability to adjust thickness and remove excess compounds, enhancing the overall efficiency and simplicity of installation.
Implementation Method 1
a first reaction solution as a base material and a second reaction solution as a curing agent are accommodated, external pressure from outside the main bag causes the first reaction solution and the second reaction solution to be mixed each other
Implementation Method 2
when a load of the bridge sleeper or rail is applied on the bridge sleeper supporting pad, the bridge sleeper supporting pad is strongly pressed
Data Source
AI summary
The invention aims at providing a bridge sleeper supporting pad for eliminating necessity of a recess to fit a projection of a rivet of a bridge beam, on a back face of a bridge sleeper or enhancing plate. For this, the invention provides a bridge sleeper supporting pad interposed between a bridge beam and bridge sleeper, including a main bag, first inner bag and second inner bag in the main bag, wherein the first inner bag contains a first reaction solution, the second inner bag contains a second reaction solution, the respective first and second inner bags are designed so that at least a part thereof opens under external pressure, the main bag is provided in communication with a sub bag, and the sub bag includes a plurality of compartments formed therein, the respective compartments partitioned by a sealed portion having a sealed portion with an inside easily peeled.