Modular Joist Floor with Rectangular Spacers for Rapid Assembly
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Solution Overview
Problem
The existing construction of joist and joist floors is complex and time-consuming, requiring extensive support during the curing period of the compression slab, which prolongs the manufacturing process and necessitates the use of multiple props.
Innovation Solution
A construction element comprising beams with rectangular cross-section spacers and connecting means that allow for simple assembly and distribution of forces, enabling the beams and spacers to support the structure's weight and loads without the need for extensive props, allowing for quicker assembly and reduced support requirements during the casting of a compression slab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional joist and interjoist floors with complex shapes are used, then the compression slab can absorb compressive forces, but the assembly process becomes long and tedious requiring extensive props during curing
Solution Approach 1:
The floor structure is divided into distinct modular components: beams with standardized profiles and interjoists with simple rectangular cross-sections. This segmentation allows for pre-fabrication and rapid assembly of individual elements, eliminating the need for complex on-site forming operations and reducing the curing support requirements.
Solution Approach 2:
The interjoists are designed with a standardized rectangular cross-section instead of complex shapes, changing the geometric parameters to simplify manufacturing and assembly. This parameter change maintains structural functionality while dramatically reducing assembly time and prop requirements during the curing process.
2Strength
If traditional complex-shaped interjoists are used, then the floor can support loads, but the manufacturing and assembly process becomes time-consuming
Solution Approach 1:
The floor system is segmented into beams and simple rectangular interjoists that can be manufactured independently and assembled quickly. This segmentation transforms a time-consuming monolithic construction process into a rapid modular assembly process while maintaining load-bearing capacity through proper connection design.
Solution Approach 2:
The interjoist geometry is changed from complex shapes to simple rectangular sections, dramatically reducing manufacturing complexity and time. The rectangular form factor allows for standardized production methods and faster on-site assembly while still providing adequate structural support when combined with the beam system.
3Reliability
If traditional joist floors requiring extensive props are used, then the compression slab can be supported during curing, but the construction process becomes more complex and costly
Solution Approach 1:
The support system is segmented into the self-supporting beam and interjoist framework that inherently stabilizes the compression slab during curing. This eliminates the need for a separate, complex prop system while maintaining curing support stability through the rigid modular framework.
Solution Approach 2:
The beam and interjoist structure serves its dual function of providing both the permanent floor framework and temporary support during slab curing. The structure is self-sufficient, eliminating the need for external prop systems and reducing overall construction complexity.
Data Source
Figure 1~2
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Figure 6~7
AI summary
The invention relates to a construction element including at least two joists (2) and at least one interjoist (6) arranged between said joists. According to the invention, each interjoist has a rectangular cross section such that opposite corners of each interjoist are received in corresponding corners of the joists. The joists are formed by one or two profile elements. The construction element also comprises means for connecting the joists to a topping (8) of the construction element. The invention also relates to a method for mounting such a construction element.