M-Shaped Channel Unit Structural Member for Steel House Assembly

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Solution Overview

Problem

The assembly and standardization of structural members in steel houses using metal-made M-shaped channels are challenging due to the complexity of wood cutting and joint processing, hindering widespread industrial and economic adoption.

Innovation Solution

A high-strength unit structural member is developed using deformed metal M-shaped channels with parallel longitudinal and lateral beams, connected by overlapping bottom plates and reinforced with inclined beams, forming a robust frame that supports floor, ceiling, and wall structures while ensuring space and load-bearing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal-made M-shaped channels are used as structural elements in steel houses, then strength and durability are improved, but assembly complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvestructural strengthVSAvoidassembly ease
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The steel house structure is divided into standardized unit structural members, each comprising a specific configuration of M-shaped channels (two longitudinal beams and two lateral beams forming a rectangular frame). This segmentation allows pre-fabrication of modular units that can be easily assembled on-site, reducing overall assembly complexity while maintaining structural integrity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Unit structural members are pre-assembled and pre-positioned in a standardized configuration before being installed in the final structure. The longitudinal and lateral beams are arranged and connected in advance to form complete rectangular frames, which are then transported and installed as ready-made units, significantly simplifying on-site assembly operations.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If unitization and standardization of structural members are implemented, then construction operation is simplified and cost is reduced, but structural strength and stability may be compromised

Engineering Contradiction:
Improveconstruction efficiencyVSAvoidstructural strength
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

Each unit structural member employs a composite configuration of multiple M-shaped channels (both longitudinal and lateral beams) working together to form a rigid rectangular frame. This composite structure provides enhanced strength and stability compared to single-channel configurations, while the standardized design enables efficient mass production and assembly.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The structural strength is enhanced by transitioning from one-dimensional linear beams to two-dimensional rectangular frame structures. The unit structural members form planar rigid frames that provide greater structural stability and load-bearing capacity, while maintaining the standardized modular design for efficient construction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Force

If M-shaped channels are used to form longitudinal and lateral beams, then load-bearing capability is improved, but device complexity and assembly difficulty increase

Engineering Contradiction:
Improveload-bearing capabilityVSAvoidstructural complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The M-shaped channel is designed as a universal structural element that serves multiple functions: it forms both longitudinal beams and lateral beams, provides load-bearing capacity in multiple directions, and enables standardized connection in various positions. This multi-functionality reduces the need for different types of structural members, simplifying the overall system despite the complex geometry of individual channels.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The structure uses homogeneous M-shaped channel sections for both longitudinal and lateral beams, creating uniformity in material and cross-sectional properties throughout the unit structural members. This homogeneity simplifies manufacturing and assembly processes while ensuring consistent load-bearing performance across all structural elements.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentUS8713867B2Unit structural member for building and floor structure utilizing the unit structural member
Publication Date: 2014.05.06 CDS NU STEEL HLDG LTD
  • US8713867B2 patent drawing
  • US8713867B2 patent drawing
  • US8713867B2 patent drawing

AI summary

A unit structural member 20 for building utilizes an M-shaped channel 1 which includes a center U-shaped channel section 2 and right and left U-shaped channel sections 6, 5 continuously formed to share right and left side plates 4, 3 of the center U-shaped channel section 2. A channel trench 7 of the center U-shaped channel section 2 and respective channel trenches 9, 8 of the right and left U-shaped channel sections 6, 5 are opened in opposite directions. The unit structural member 20 for building is constituted with a pair of longitudinal beams 15 formed of long pieces of material of the M-shaped channel 1 in parallel at an established distance and a number of lateral beams formed of short pieces of material of the M-shaped channel 1 in parallel laterally between the parallely-arranged longitudinal beams 15 at established distances in the longitudinal direction of the longitudinal beams 15.