Continuous Double Steel Framework with Through-Opening Holes
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Solution Overview
Problem
Current lightweight steel frameworks face issues such as complex assembly processes, insufficient structural strength, material wastage, and increased manufacturing costs due to rigid connections and inadequate load distribution, which hinder their adoption in construction projects, especially for low-rise residential buildings.
Innovation Solution
A three-dimensional lightweight steel framework design featuring a structural main column, small column, wall reinforcing column, brace, and truss beam brace, with continuous single beams formed from L-shaped, U-shaped, or C-shaped steel members, and a reinforced composite floor slab using profiled steel sheets filled with concrete and anti-cracking mesh, allowing for flexible assembly and enhanced structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If structural beams and columns are connected by butt joints (fixed or hinged), then the connection is simple, but the assembly process becomes complex and accumulative errors increase
Solution Approach 1:
The patent merges the beam and column into a single integrated component with through-opening holes that allow direct penetration and fastening. This eliminates the need for separate butt joints and connection hardware, reducing assembly steps while maintaining connection strength.
Solution Approach 2:
The integrated beam-column component is segmented with through-opening holes at specific locations, allowing modular assembly while maintaining structural integrity. The segmentation enables easy installation without complex connection procedures.
2Stability of the object's composition
If continuous double beams are connected by crisscross joints, then the structure is formed, but extra space is consumed and load distribution becomes non-uniform
Solution Approach 1:
The patent combines multiple beam segments into a continuous integrated structure with through-opening holes, eliminating the need for crisscross joints. This merging approach maintains structural stability while reducing space consumption and ensuring uniform load distribution across the continuous beam.
3Ease of operation
If anchor bolts are positioned and embedded on site, then the framework can be assembled, but the assembling process becomes complex
Solution Approach 1:
The patent incorporates pre-positioned through-opening holes in the integrated beam-column components, eliminating the need for on-site anchor bolt embedding. This preliminary action simplifies the assembly process while maintaining structural stability.
4Strength
If enclosed square-shape steel tubes are used, then the structure is formed, but manufacturing cost increases due to drilling or flame cutting
Solution Approach 1:
The patent uses segmented C-shaped steel members instead of enclosed square-shape steel tubes. The C-shaped members are connected through the integrated beam-column structure with through-opening holes, eliminating the need for expensive drilling or flame cutting operations while maintaining structural strength.
5Reliability
If galvanized coating is applied to prevent rusting, then corrosion resistance is improved, but manufacturing cost increases
Solution Approach 1:
The patent integrates multiple C-shaped steel members into a unified structure with through-opening holes, reducing the total surface area requiring galvanization. This merging approach maintains corrosion resistance while reducing manufacturing costs compared to enclosing square-shape tubes.
6Weight of moving object
If floor slab thickness is reduced to reduce weight, then weight is decreased, but lateral force resistance is reduced
Solution Approach 1:
The patent uses composite construction with integrated beam-column elements and through-opening holes that provide structural reinforcement. This composite approach allows reduced floor slab thickness while maintaining lateral force resistance through the reinforced integrated structure.
Data Source
Figure 1
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AI summary
A three-dimensional lightweight steel framework comprising a beam, a purlin and/or a stringer, a column, a wall body, a floor slab and/or a roof, and a lateral-force-resistant rod and/or tension braces. The beam is a continuous double beam comprising two identical or different continuous single beams attached at both sides of the column, the continuous single beam and the column are continuous and not interrupted at a cross joint of the continuous single beam and the column. The present invention has advantages of simple structure and low manufacturing cost.