Acute-Angled Wall Member Assembly for Polygonal Structures
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Solution Overview
Problem
Existing architectural structures, particularly those with polygonal shapes, face challenges in machining complexity and member assembly due to non-right angles, leading to reduced shape freedom, increased weight, and decreased workability during construction.
Innovation Solution
The use of wall members with acute angles and fitting portions, combined with axial members, allows for the construction of architectural structures with various shapes, including polygons, by stacking and fitting lower and upper members with recesses and projections, enabling easy assembly and transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lumber structures with right angles are used, then machining is easy and construction is simple, but shape freedom is limited and polygonal structures cannot be easily built
Solution Approach 1:
The wall member is divided into an upper member and a lower member that can be assembled together. Each member has standardized dimensions and angles, allowing complex polygonal shapes to be constructed by combining simple standardized components rather than machining each piece to complex shapes.
Solution Approach 2:
The wall members are designed with specific asymmetric angles (acute angles) rather than symmetric right angles. This asymmetric design enables the construction of polygonal structures with various shapes while maintaining standardized manufacturing processes for each member type.
2Adaptability or versatility
If long members are used to form polygonal structures, then shape freedom is achieved, but weight increases and workability upon transferring and assembling is reduced
Solution Approach 1:
Instead of using single long members to form entire walls, the structure is segmented into multiple shorter upper and lower members that are assembled together. This reduces the weight of individual members that need to be handled and transported while still achieving the desired polygonal shape through combination.
Solution Approach 2:
The wall members are designed with both horizontal and vertical dimensions optimized for handling. By creating members with specific height and width proportions, the design allows for easy transfer and assembly while maintaining the ability to form various polygonal shapes through proper angular configurations.
3Ease of operation
If members are designed for combination freedom and easy transfer, then workability is improved, but design of members for polygonal structures becomes very difficult
Solution Approach 1:
The upper and lower members are designed as universal components with standardized dimensions, angles, and connection features. These standardized members can be used to construct various polygonal structures by changing the arrangement and number of members rather than designing unique complex members for each structure type.
Solution Approach 2:
The design uses standardized angular parameters (acute angles) and dimensional parameters for the wall members. By maintaining consistent parameters across all members and varying only the arrangement and quantity, the system achieves both ease of operation and the ability to form different polygonal shapes without increasing design complexity.
Data Source
AI summary
A wall member includes: a lower member in a shape of a plate including a first rear face, a first side face, and a first angle between the first rear face and the first side face being a first acute angle; an upper member in a shape of a plate to be combined with the lower member, the upper member including a second rear face, a second side face opposed to the first side face of the lower member, and a second angle between the second rear face and the second side face being a second acute angle; a fitting portion (recess and projection) enabling a lower face of the lower member and an upper face of the upper member to be fitted with each other; and a hole through which an axial member is arranged in a vertical direction.