Modular Concrete Form Load Distribution via Shear Pins
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Solution Overview
Problem
Existing self-lifting concrete forming systems face challenges in transmitting and distributing the concentrated vertical loads during lifting and landing operations, which are not adequately handled by conventional modular panelized systems, leading to inefficiencies and increased costs.
Innovation Solution
A modular panelized form system with narrow support panels featuring vertical steel rails that bring the rails closer together to manage vertical loads, utilizing wide head and landing brackets, and shear pins to distribute loads effectively, replacing the need for separate column supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional modular panelized systems are used, then ease of manufacture and assembly is improved, but the ability to transmit and distribute concentrated vertical loads during lifting and landing operations deteriorates
Solution Approach 1:
The form system is divided into modular panels that can be independently manufactured and assembled, while incorporating specialized support panels with vertical steel rails at strategic locations to handle concentrated loads during lifting and landing operations
Solution Approach 2:
The form system uses standard modular panels for general construction areas, while incorporating specialized support panels with vertical steel rails at specific locations where concentrated vertical loads are encountered during lifting and landing operations
2Reliability
If separate column supports are added to transmit vertical loads, then load transmission capability is improved, but device complexity and fabrication costs increase
Solution Approach 1:
The vertical steel rails are integrated directly into the modular panel structure, merging the load transmission function with the form panel itself, thereby eliminating the need for separate column supports while maintaining load transmission capability
Solution Approach 2:
The vertical steel rails within the modular panels serve multiple functions: they provide structural support for the panel, transmit concentrated vertical loads during lifting and landing operations, and eliminate the need for separate column supports
3Reliability
If vertical steel rails are brought closer together in support panels, then load distribution capability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The vertical steel rails are pre-positioned and pre-assembled within the modular panels during manufacturing, ensuring precise spacing and alignment before installation on the construction site, thereby achieving accurate load distribution without requiring high precision during final assembly
Data Source
AI summary
A modular panelized form wall include a first wall panel and a second wall panel; and a support panel having vertical steel rails which frame the vertical sides of the support panel. The support panel is arranged between the first and second wall panels. The first wall panel, the second wall panel and the support panel are connected together to form a portion of the modular panelized form wall. Wide head brackets can be connected to a top of the support panel for an overhead self-lifting grid system to be attached to the modular panelized form wall. Wide landing brackets can be connected to a bottom of the support panel to transmit the loads from the support panel to the underlying support. Shear pins can be inserted through the vertical steel rails at various locations in the support panel and through corresponding holes in the first and second wall panels, the holes to receive the shear pins to distribute the vertical loads away from the support panel to the first and second wall panels.