Modular Pile Bridge Assembly for Timber Pier Repair
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Solution Overview
Problem
Current mechanical repair solutions are insufficient for rapidly restoring the load-bearing capacity of damaged or deteriorated timber piers, particularly for military operations involving heavy machinery, as they require heavy machinery and specialized tooling, and cannot be easily installed by a small team.
Innovation Solution
A modular, portable pile bridge and cap repair assembly system that can be configured to restore load-bearing capacity using lightweight, manageable components, allowing for rapid installation by a small team without heavy machinery, accommodating variability in pier design and construction imperfections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional repair techniques are used to restore load-bearing capacity of damaged timber piers, then the structural strength is improved, but the installation requires heavy machinery and specialized tooling, increasing device complexity and installation time
Solution Approach 1:
The repair system is divided into modular components including cap brackets, pile brackets, compression members, and end connector assemblies that can be independently manufactured, transported, and assembled. This segmentation eliminates the need for heavy specialized tooling while maintaining structural integrity.
Solution Approach 2:
The end connector assembly acts as an intermediary component that facilitates the connection between compression members and brackets without requiring specialized welding or fastening equipment. The intermediary design allows for simple mechanical assembly by small teams.
2Strength
If traditional repair methods are employed to strengthen timber piers for heavy machinery support, then the structural capacity is restored, but the installation time increases due to complex procedures and heavy equipment requirements
Solution Approach 1:
Components such as cap brackets and pile brackets are pre-assembled and prepared before deployment to the pier site. This preliminary preparation reduces on-site assembly time and eliminates the need for complex field operations requiring heavy machinery.
Solution Approach 2:
The system incorporates rotatable connections and adjustable components that allow for dynamic adaptation to varying pier conditions during installation, enabling rapid deployment without time-consuming alignment and adjustment procedures.
3Strength
If conventional repair solutions are used to reinforce existing timber pier substructures, then the load-bearing capacity is improved, but the system cannot accommodate variability in pier design and construction imperfections
Solution Approach 1:
The cap brackets and pile brackets are designed with universal mounting capabilities that can accommodate various pier configurations, diameter variations, and construction imperfections. The same basic component design can be adapted to different pier types through adjustable mounting options.
Solution Approach 2:
The system includes rotatable connections and flexible mounting arrangements that allow the repair structure to adapt dynamically to misalignments and variations in the existing pier geometry, maintaining structural effectiveness across different installation scenarios.
4Strength
If heavy machinery is used to install repair components on timber piers, then the structural reinforcement can be achieved, but the system becomes less portable and more difficult to maneuver in confined spaces
Solution Approach 1:
By dividing the repair system into discrete, lightweight modular components, the system can be manually handled and positioned in confined spaces without heavy machinery, while still achieving the required structural reinforcement when assembled.
Solution Approach 2:
The design replaces heavy mechanical installation systems with simplified mechanical connection methods that can be operated manually or with light equipment, substituting complex heavy machinery operations with straightforward assembly procedures.
Data Source
AI summary
In certain embodiments, a pile bridge assembly includes first and second pile brackets for rigid mounting onto first and second piles of a pier; a cap bracket sub-assembly for rigid mounting onto a beam of the pier supported by the first and second piles; a first compression arm rotatably connected (i) at a first end to the first pile bracket and (ii) at a second end to the cap bracket sub-assembly; and a second compression arm rotatably connected (i) at a first end to the second pile bracket and (ii) at a second end to the cap bracket sub-assembly. The pile bridge assembly restores the load capacity of damaged or degraded piers. The cap bracket sub-assembly can include first and second cap brackets, and the pile bridge assembly can further include one or more tension-managing straps.