MSE Retaining Wall Rebar Connection for Lower-Cost Reliability
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Solution Overview
Problem
Conventional mechanically stabilized earth (MSE) retaining walls with steel reinforcement face challenges of high cost and design complexity due to the use of specially made parts that are not readily available and expensive.
Innovation Solution
The use of cylindrical rods, preferably rebar, secured with embed loops and fasteners, such as bolts, to connect concrete panels and backfill soil, utilizing widely available and inexpensive materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specially made reinforcement parts are used in conventional MSE retaining walls, then structural reliability is improved, but cost and device complexity increase significantly
Solution Approach 1:
The patent applies universality by using standard rebar (a universal construction material) to perform the reinforcement function traditionally requiring specially made parts. The rebar can be used in various configurations (straight, bent, hooked) to achieve different structural requirements while maintaining the same basic component, thereby reducing device complexity while preserving reliability
Solution Approach 2:
The patent employs copying by replicating the reinforcement function of specially made parts through standard rebar components. Instead of creating unique custom parts, the design copies the essential functional characteristics using readily available rebar, which simplifies the design process and reduces complexity while maintaining structural integrity
2Reliability
If specially made reinforcement parts are used in conventional MSE retaining walls, then structural reliability is improved, but cost increases significantly
Solution Approach 1:
The patent applies this principle by replacing expensive specially made reinforcement parts with inexpensive standard rebar. The rebar is a cost-effective material that can be easily obtained and installed, significantly reducing the overall cost of the MSE retaining wall while maintaining adequate structural reliability through proper design and configuration
3Device complexity
If standard rebar is used instead of specially made parts, then cost and device complexity are reduced, but connection reliability may be compromised
Solution Approach 1:
The patent applies segmentation by dividing the connection system into distinct functional components: the rebar element, the embed loop for anchoring, and the bolted connection mechanism. This segmentation allows each component to be optimized for its specific function while using standard materials, ensuring connection reliability through proper detailing of each segment rather than relying on complex integrated specially made parts
Data Source
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AI summary
Disclosed are embodiments of a mechanically stabilized earth (MSE) retaining wall that employs one or more reinforcement rods, such as rebar, and that can be produced with inexpensive, widely available parts. A concrete panel is provided. A steel embed is provided with an embed loop and with first and second outwardly extending stems having aligned embed apertures. The loop is secured within the concrete panel. A steel reinforcement rod is provided with a generally cylindrical elongated body with first and second ends. The first end resides within backfill soil, and the second end has a rod loop, preferably created by reshaping the end of the reinforcement rod. A steel fastener extends through the embed apertures and the rod loop to thereby secure together the reinforcement rod and the embed.