Pultruded Wall Framing System Wind Resistance

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Solution Overview

Problem

Conventional building systems face challenges in withstanding high wind loads, mold resistance, and cost-effectiveness, particularly in areas with varying wind severity and labor shortages, where custom engineering is expensive and wood materials are limited by mold and insect infestations.

Innovation Solution

A structural building system featuring I-shaped vertical members constrained by rigid horizontal headers and footers with corrugated braces, providing superior wind resistance and reduced deflection, using standardized materials that can be assembled by semi-skilled labor with existing tools, and incorporating features that resist mold and insect attacks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional wood stud walls are used, then the building system is simple and affordable, but the structure cannot withstand high wind loadings

Engineering Contradiction:

Improvewind resistanceVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The building system is divided into modular components: I-shaped vertical members, horizontal headers, and footers. Each component is standardized and can be manufactured separately, then assembled on-site to form wind-resistant wall assemblies that meet high wind loading requirements without requiring complex custom engineering

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system combines different materials with complementary properties: steel or composite I-shaped vertical members provide structural strength and wind resistance, while the design incorporates mold-resistant materials and fire-retardant treatments to create a multi-functional composite building system

Inventive Principle:

Principle #40Composite materials

2Strength

If custom engineering is performed for different locations, then wind resistance is optimized, but the cost becomes prohibitively expensive

Engineering Contradiction:

Improvewind resistanceVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The I-shaped vertical members, headers, and footers are designed as universal standardized components that can be used across different building locations and wind zones. By adjusting assembly configurations rather than custom-engineering each component, the system achieves location-specific wind resistance optimization at standard manufacturing costs

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system allows for parameter adjustments in assembly configurations (such as spacing, connection methods, and component selection) to match different wind loading requirements, while the components themselves remain standardized. This enables optimization for various locations without requiring custom manufacturing

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If wood materials are used, then the material is readily available and easy to work with, but mold and insect infestations become prevalent

Engineering Contradiction:

Improveease of assemblyVSAvoidmold and insect resistance

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system uses steel or composite I-shaped vertical members instead of traditional wood studs. These alternative materials are inherently resistant to mold and insect infestations while maintaining ease of assembly through standardized connections and compatible fastening methods

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The building system employs composite or treated materials that combine structural properties with resistance to biological degradation. The I-shaped members and associated components are selected or treated to provide both workability and protection against mold and insect attacks

Inventive Principle:

Principle #40Composite materials

4Strength

If steel construction materials are used, then strength and wind resistance are improved, but the requirement for skilled labor increases

Engineering Contradiction:

Improvestructural strengthVSAvoidlabor skill requirement

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The steel or composite structure is segmented into pre-fabricated modular components (I-shaped vertical members, headers, footers) with standardized connection details. This segmentation allows semi-skilled workers to assemble the high-strength structure using simple, repeatable connection methods rather than requiring skilled steelworkers for complex fabrication

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8020352B2Pultruded wall framing system

Publication Date: 2011.09.20 AHEARN ROGER E

AI summary

Generally, a structural building system has a header, a header distant from the footer, and a plurality of vertical members spanning the footer and the header. The footer includes two support members, each having a horizontal portion and a vertical portion, positioned in an interior space of the footer for additional strength and stability. The header includes a corrugation, or brace member positioned in an interior space for strength and stability that has an upwardly offset central portion between horizontal portions. The vertical members are preferably I-beams that support a wall height at maximum wind loads. The footer and the header include races for ready wiring without drilling or cutting the vertical members. The system is augmented by mechanical fasteners or adhesives.