Heavy Duty Concrete Form Panel Reinforcement

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Solution Overview

Problem

Existing modular concrete form systems face limitations in spanning capacity due to the strength of bolts and bolt bearing blocks, especially with the introduction of higher strength steels and concrete formulations, which require enhanced stiffness and load resistance without increasing panel weight.

Innovation Solution

The modular metal concrete form panel design includes a face sheet secured to a perimeter flange with side and end rails, bolt blocks, and reinforcement bars that are secured to the face sheet and flange, with bolt blocks having protrusions in notches for improved load transfer and additional ribs for increased stiffness, allowing for enhanced load-bearing capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If higher strength steels are used to increase spanning capacity, then load resistance improves, but panel stiffness must be increased to support higher stresses

Engineering Contradiction:
Improveload resistanceVSAvoidpanel stiffness
Core Design Contradiction:
StrengthVSStability of the object's composition

Solution Approach 1:

The form panel uses a composite structure combining high-strength steel components (bolt blocks, flanges) with reinforcement bars, creating a composite system that achieves both high strength and adequate stiffness. The reinforcement bars work together with the steel components to distribute stresses and maintain structural stability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent introduces strengthening bars that extend between bolt blocks in a dimension perpendicular to the main panel face, adding structural rigidity in a new spatial direction. This dimensional addition provides the necessary stiffness to support higher strength steel components without increasing panel weight.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Strength

If bolt block size and strength are increased to improve connection strength, then spanning capacity increases, but panel weight increases

Engineering Contradiction:
Improveconnection strengthVSAvoidpanel weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent changes the material parameters of the bolt blocks and flanges to higher strength steel grades, allowing for reduced component dimensions while maintaining or increasing connection strength. This parameter change enables achieving 200-300% stronger connections without proportionally increasing weight.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The connection system is segmented into distinct high-strength components (bolt blocks, flanges, reinforcement bars) that work together to distribute loads. This segmentation allows each component to be optimized for its specific function, achieving high overall connection strength without excessive weight in any single component.

Inventive Principle:
Principle #1Segmentation

3Strength

If weld amount between members and bolt bearing block is increased to improve connection strength, then spanning capacity increases, but manufacturing complexity increases

Engineering Contradiction:
Improveconnection strengthVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The bolt blocks and flanges are pre-fabricated with integrated reinforcement bars and predetermined weld configurations. This preliminary action allows for standardized, repeatable manufacturing processes that reduce on-site welding complexity while maintaining high connection strengths through pre-engineered joint designs.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11795708B2Heavy duty spanning forms and related systems and methods
Publication Date: 2023.10.24 WILIAN HOLDING CO
  • US11795708B2 patent drawing
  • US11795708B2 patent drawing
  • US11795708B2 patent drawing

AI summary

A metal concrete form panel having a face sheet secured to a perimeter flange that includes side rails and end rails. One or more tie ribs extend between the end rails. A bolt block is secured in each corner to the perimeter flange where the side rails meet the end rails. A bar is located spaced inside each side rail and extended between and secured to each of the pair of opposing bolt blocks of the associated end rail and also secured to each intervening tie rib and to the face sheet.