Bamboo Connector Assembly for Adhesive-Bonded Bending Resistance
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Solution Overview
Problem
Current methods for connecting bamboo poles and segments result in structures of inferior quality due to lack of resistance to bending moments and potential weaknesses in the bamboo, as they do not effectively withstand long-term use or comply with advanced building codes.
Innovation Solution
A method involving connectors with internal passageways that allow adhesive to flow and bond securely to the bamboo poles, featuring various shapes and configurations such as conical, cylindrical, and mating parts, ensuring strong and long-lasting connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional connection methods (rope, wire, bolts) are used to connect bamboo poles, then the structure can be assembled, but the connection strength and resistance to bending moments are insufficient
Solution Approach 1:
The connector is divided into multiple functional parts: an internal passageway system for adhesive delivery, external bonding surfaces for connection, and structural elements for mechanical interlocking. This segmentation allows each part to perform its specific function optimally, creating a reliable connection that resists bending moments while maintaining assembly simplicity.
Solution Approach 2:
Adhesive serves as an intermediary material that flows through the internal passageway and bonds the connector to the bamboo pole. This intermediary substance creates a strong chemical bond that supplements mechanical connections, significantly improving both connection strength and resistance to bending moments.
2Ease of manufacture
If perforations are made in bamboo poles for traditional fastening, then connections can be made, but weaknesses are introduced in the bamboo structure
Solution Approach 1:
Instead of making holes in the bamboo pole and inserting fasteners (traditional approach), the invention inverts the process by having the connector deliver adhesive through its own internal passageway to bond with the bamboo surface. This eliminates the need for perforations in the bamboo, preserving its structural integrity while still enabling strong connections.
3Productivity
If simple fastening methods are used, then assembly is quick and easy, but the connections do not last over the long life of a building
Solution Approach 1:
The connector is pre-configured with internal passageways and bonding surfaces designed to deliver and distribute adhesive uniformly. This preliminary preparation ensures that when assembly occurs, the strong bonding action happens automatically through the adhesive flow mechanism, creating durable connections that last the life of the building while maintaining quick assembly.
Solution Approach 2:
The connection system combines multiple materials and bonding mechanisms: the connector material (metal or other durable substance), bamboo pole material, and adhesive material. This composite approach creates a connection system that leverages the strengths of each material, achieving both quick assembly and long-term durability that satisfies building code requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides durable connections that meet advanced building standards, enhancing the use of bamboo as a construction material by improving resistance to bending and pull-out forces, and ensuring structural integrity over the life of the building.
Implementation Method 1
causing an adhesive to flow into the internal passageway and flow to the outer surface of the connector such that the adhesive also contacts the portion of the bamboo pole and bonds the connector to the bamboo pole
Data Source
Figure 1A~2C
Figure 3A~4C
Figure 5A~5I
AI summary
A method includes forming a cutout in a bamboo pole, the cutout having a non-uniform perimeter, and in which the perimeter increases towards a region of the bamboo pole where fibers of the pole are stronger than other regions of the bamboo pole.