Composite Ceiling Shell with Rebar Layers and Concrete Slab
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Solution Overview
Problem
Existing construction techniques for ceilings lack efficiency in terms of material usage, structural durability, and environmental impact, while also requiring significant manpower and material costs.
Innovation Solution
A composite ceiling structure comprising a polymer-based shell with internal compartments, reinforced with multiple layers of rebars and topped with a concrete slab, which serves as both formwork and finished ceiling material, reducing material needs and enhancing structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional construction techniques are used for ceilings, then structural durability and resistance can be achieved, but material costs and labor requirements increase significantly
Solution Approach 1:
The ceiling structure is divided into distinct functional layers: a shell providing the base structure, multiple layers of rebars for reinforcement, and a concrete slab for finishing. This segmentation allows each component to be optimized independently and installed systematically, reducing overall labor requirements while maintaining structural integrity.
Solution Approach 2:
The invention uses a composite construction combining polymer-based shell material with traditional concrete and rebar reinforcement. This composite approach integrates the advantages of different materials - the shell provides formwork and initial structural support, while the concrete-rebar composite provides final structural durability - thereby reducing both material costs and labor compared to traditional monolithic concrete construction.
2Strength
If traditional ceiling construction methods are used, then structural integrity can be maintained, but material costs increase
Solution Approach 1:
The shell is installed beforehand to serve as permanent formwork, eliminating the need for traditional removable formwork and reducing material waste. The rebars are pre-positioned within the shell structure, and the concrete is then poured to complete the ceiling. This preliminary action sequence optimizes material usage and reduces overall construction costs.
Solution Approach 2:
The shell serves dual purposes: as construction formwork during installation and as a permanent structural component in the finished ceiling. This eliminates the need for separate formwork materials that would be discarded after use, thereby reducing material costs while maintaining structural integrity through the retained shell structure.
3Ease of operation
If conventional ceiling structures are used, then basic functionality is achieved, but environmental impact increases due to material waste
Solution Approach 1:
The shell is recovered and retained as part of the permanent ceiling structure rather than being discarded after serving as formwork. This principle directly reduces construction waste and environmental impact while maintaining the basic functionality of the ceiling structure.
Solution Approach 2:
The composite construction method allows for more efficient material utilization, reducing excess material usage and waste generation compared to traditional methods. The integration of shell, rebar, and concrete creates a optimized structure that minimizes material waste while achieving the required ceiling functionality.
Data Source
AI summary
The composite ceiling can have a shell made of a polymer-based material and defining a plurality of internal compartments, having a flat and smooth under surface spaced apart from a flooring and facing the flooring, and an upper surface opposite the under surface, a first layer of rebars having a first plurality of rebars spaced apart from one another along the depth of the shell, the first layer of rebars being separated from upper surface by spacers, a second layer of rebars having a second plurality of rebars spaced apart from one another along the width of the shell, the second layer of rebars being above the first layer of rebars, and a horizontally extending concrete slab extending over the shell and surrounding the rebars.