Retaining Wall Waler Formwork With Integrated Rebar Holders
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Solution Overview
Problem
Existing modular polymer-based retaining wall systems require complex installation of reinforcing bars and separate bar locators, limiting construction ease and flexibility.
Innovation Solution
A modular concrete wall system using walers with integrated reinforcing bar holders and horizontal assembly, allowing for easier construction and design flexibility, featuring apertures for fluid concrete flow and attachment of external features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcing bars are installed in prior art systems, then wall strength is improved, but installation complexity and time increase due to separate bar locators and horizontal insertion requirements
Solution Approach 1:
The waler integrates multiple functions into a single component: it serves as both the formwork support structure and the reinforcing bar holder. The holder is formed as part of the waler structure itself, eliminating the need for separate bar locators and simplifying the installation process while maintaining wall strength
2Ease of manufacture
If modular polymer casting elements are used, then manufacturing flexibility is improved, but ease of operation deteriorates due to complex assembly requirements
Solution Approach 1:
By combining the waler and holder into a single integrated component, the system reduces the number of parts that need to be assembled on-site. This integration maintains the manufacturing flexibility of modular polymer elements while significantly improving ease of construction through simpler assembly procedures
Solution Approach 2:
The system maintains modular segmentation of wall sections while integrating the holder into each waler unit. This allows the wall to be constructed in manageable modular sections while each individual unit is simplified for easier handling and assembly
3Strength
If horizontal reinforcing bar insertion is required, then wall structural integrity is improved, but construction time increases due to complex positioning requirements
Solution Approach 1:
The holder is pre-formed as an integral part of the waler during manufacturing. This preliminary action eliminates the need for complex on-site positioning and installation of bar holders, allowing reinforcing bars to be quickly inserted horizontally while maintaining structural integrity
Data Source
AI summary
A waler adapted for use as part of a modular cast concrete retaining wall system; said waler being adapted to interconnect with adjacent walers; said waler having side walls and upper walls defining an internal casting cavity; wherein said waler is adapted to be oriented in use in a substantially horizontal alignment by having relatively concrete impenetrable side walls and apertures in said upper and lower walls, thereby to permit passage of fluid concrete into and through said casting cavity; and a system incorporating same.