Monolithic Column Shoe for Reinforced Concrete Fastening
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Solution Overview
Problem
Existing column shoes for reinforced concrete columns lack optimal stiffness and efficient force transfer, as they often have separate lateral plates that do not effectively distribute horizontal forces and secure the column to the base.
Innovation Solution
A column shoe design featuring a monolithic side plate member with anchor bars and back anchors, which includes a slot for easier welding and symmetrical arrangement, enhances stiffness and force transfer by securely fastening the column to the base through a bolt system and anchor bars, and provides improved manufacturing ease during reinforced concrete column casting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate lateral plates are used in the column shoe, then the manufacturing process is simpler, but the stiffness and force transfer capability are insufficient
Solution Approach 1:
The patent combines two separate lateral plates into a single monolithic side plate member with integrated side plate sections. This merging creates a more rigid structure that effectively distributes horizontal forces while maintaining manufacturing simplicity through a unified casting process.
2Strength
If a monolithic side plate member is used to improve stiffness, then the force transfer is optimized, but the manufacturing complexity increases
Solution Approach 1:
The monolithic side plate member is designed with integrated side plate sections that are formed as distinct segments within the single casting. This segmentation provides functional differentiation for force distribution while maintaining the structural integrity and stiffness of a monolithic construction.
3Strength
If anchor bars are welded to the side plate sections, then the fastening strength is improved, but the welding accessibility becomes difficult
Solution Approach 1:
The slot extends through the thickness of the side plate member, creating a three-dimensional passage that allows welding torch access from both sides. This dimensional approach enables anchor bars to be welded to the inner surfaces of the side plate sections, achieving full fastening strength while overcoming accessibility limitations.
Data Source
Figure 1~2
Figure 3~4
AI summary
Presented is a column shoe for fastening columns to a base The column shoe comprises a bottom plate (1) with a bolt opening (2), a side plate member (3) fastened to the bottom plate (1) for providing a bolt casing (4) of the bottom plate (1) and the side plate member (3), anchor bars (5) fastened to the side plate member (3) for fastening the column shoe and the reinforced concrete column to one another, and back bond means (6). The side plate member (3) is a monolithic structure and the bolt casing (4) being symmetrical with respect to an imaginary vertical central plane A of the bolt casing (4). A slot (14) extends from an upper edge (15) of side plate member (8) at the connecting section (8) of the side plate member (3).