Profiled Metallic Floor Deck With Integrated Rebar Trusses
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Solution Overview
Problem
Composite floor decks with limited corrugation height are restricted in span length, necessitating propping during concrete pouring due to insufficient resistance, which limits their application in construction.
Innovation Solution
A floor deck structure featuring a profiled metallic sheet with longitudinal grooves and rebar trusses connected using connectors to enhance stiffness and resistance, allowing for increased span lengths without the need for propping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the corrugation height is increased to improve floor deck resistance and span length, then the structural resistance is improved, but the deck height becomes excessive and violates construction standards limiting deck height to 75 mm
Solution Approach 1:
The invention creates a composite structure combining a profiled metallic sheet with rebar trusses integrated into longitudinal grooves. This composite system provides enhanced resistance and span capability while maintaining the deck height within the 75 mm limit, as the reinforcement comes from the integrated rebar trusses rather than increased corrugation height
Solution Approach 2:
Instead of increasing resistance by increasing the vertical dimension (corrugation height), the invention moves the reinforcement strategy to the longitudinal dimension by integrating rebar trusses within the grooves of the metallic sheet, thereby achieving enhanced strength without violating height constraints
2Length of stationary object
If the corrugation height is limited to 75 mm to meet construction standards, then the deck height compliance is improved, but the span length is reduced and propping is required during concrete pouring
Solution Approach 1:
The composite system of profiled metallic sheet with integrated rebar trusses provides sufficient resistance for longer spans at the limited 75 mm height, eliminating the need for propping during concrete pouring and thereby improving construction efficiency and productivity
3Length of stationary object
If the corrugation height is limited to 75 mm to meet construction standards, then the deck height compliance is improved, but the span length is restricted to short spans
Solution Approach 1:
The integration of rebar trusses within the grooves of the profiled metallic sheet creates a composite structure that achieves enhanced span length capability while maintaining the deck height within the 75 mm limit, thereby resolving the contradiction between height compliance and span length
Solution Approach 2:
The invention shifts the resistance enhancement strategy from the vertical dimension (corrugation height) to the longitudinal dimension (rebar trusses in grooves), enabling longer spans without increasing deck height
Data Source
AI summary
A floor deck structure (1) including a profiled metallic sheet (2) including at least a first, a second and a third upper portion (7) separated by a first and a second longitudinal groove (3) comprising a base (5), a first lateral wall (13) linking the base (5) to one of the upper portions and a second lateral wall (14) linking the base (5) to an adjacent upper portion (7); a first and a second rebar truss (10) each extending longitudinally in and/or above, respectively, the first and second longitudinal groove (3) and a plurality of connectors (9a) fastening the first and the second rebar trusses (10) to the profiled metallic sheet (2).