Prefabricated Concrete Formwork Assemblies for Rapid Construction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cast in place reinforced concrete techniques face challenges such as complex formwork manipulation, quality control issues due to unskilled labor, and logistical burdens related to large or heavy precast components, particularly in developing countries where skilled labor and quality control measures are lacking.
Innovation Solution
A method using prefabricated assembly components with integrated structural reinforcement and non-removable formwork, allowing for the assembly of reinforced concrete structures without conventional metal joints, and incorporating lightweight concrete formulations to facilitate easier site logistics and minimize temporary fastening needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cast in place reinforced concrete techniques are used, then structural integrity can be achieved, but complex formwork manipulation and quality control issues arise due to unskilled labor
Solution Approach 1:
The formwork is divided into modular panels with standardized dimensions and connection mechanisms. Each panel is a self-contained unit that can be independently handled and assembled, transforming the complex manipulation of large formwork assemblies into simple assembly of standardized modules by unskilled labor
Solution Approach 2:
The formwork panels are integrated with pre-attached structural reinforcement bars and connection hardware. This merging of formwork and reinforcement functions into a single assembly eliminates the need for separate manipulation of formwork and reinforcement placement, reducing operational complexity while maintaining structural integrity
2Productivity
If large or heavy precast components are used, then construction speed can be improved, but logistical burdens increase particularly in developing countries
Solution Approach 1:
The structural system is segmented into lightweight precast concrete panels that are significantly smaller and lighter than traditional precast components. These panels are designed to be manually or mechanically handled with minimal equipment, reducing logistical burdens while maintaining construction speed through rapid assembly of multiple small units
Solution Approach 2:
The precast panels utilize composite construction with concrete infill within metal or plastic frames, creating lightweight yet structurally adequate components. This composite approach reduces component weight and improves handling characteristics compared to solid concrete precast elements, while maintaining structural performance
3Ease of manufacture
If conventional cast in place concrete is used, then cost can be minimized, but surface finish quality is limited due to dependence on concrete quality and formwork condition
Solution Approach 1:
The formwork panels are pre-fabricated in controlled factory environments with precision-engineered surfaces and integrated reinforcement. This preliminary action ensures high surface finish quality and proper reinforcement placement before the panels arrive at the construction site, eliminating dependence on site conditions and labor skill for these critical quality attributes
Solution Approach 2:
The precast panels serve as precise copies or templates of the final structural elements, with all surface finish requirements and reinforcement details predetermined and executed in the factory. This copying approach transfers quality control from the variable site environment to the controlled factory setting, ensuring consistent high-quality results
Data Source
AI summary
The present invention includes prefabricated assemblies which are assembled on a construction site to provide a permanent concrete mold with integrated structural reinforcement and structural splices for cast-in-place concrete structures. The invention enhances the quality of the cast concrete structure while lowering the cost of construction and construction time. Described herein is a column form assembly, a column closure panel assembly, a beam form assembly, and a slab form assembly which are used to construct cast in place structurally reinforced concrete columns, beams, and floor slabs with minimal form work and construction site logistics. Also described herein are a method of assembly of said structures and a method of fabricating said assemblies.