3D Printed Weaving Integrated Building Construction Method
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Solution Overview
Problem
Current 3D printing technology in building construction lacks integration with reinforcement materials, resulting in limited structure types and low strength and toughness of printed structures, which restricts the application to small-scale civil buildings with small space and span.
Innovation Solution
A construction method combining 3D printing with weaving using high-strength wires and cement-based materials, where finite element analysis and spatial modeling optimize structural components, and weaving density is determined based on stress analysis to enhance structural strength and toughness, allowing for layer-by-layer construction and segment connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional steel bars and concrete are used for reinforcement, then structural strength is improved, but construction complexity increases due to cutting, tying, and positioning requirements
Solution Approach 1:
The patent transforms rigid steel bars into flexible steel strands, changing the physical state and flexibility parameter of the reinforcement material. This allows the steel to be woven continuously through the 3D printing process without cutting, tying, or positioning, thereby maintaining structural strength while dramatically reducing construction complexity
Solution Approach 2:
The patent creates a composite structure by integrating flexible steel strands with 3D printed cement-based materials. The steel strands provide tensile strength and flexibility, while the cement matrix provides compressive strength and structural form, achieving enhanced structural performance without traditional reinforcement complexity
2Productivity
If 3D printing technology is used alone, then construction speed and automation are improved, but structural strength and toughness are insufficient
Solution Approach 1:
The patent combines 3D printed cement-based materials with flexible steel strands to create a composite structure. The cement matrix provides compressive strength and structural form, while the embedded steel strands provide tensile strength and toughness, achieving both high construction speed through automation and enhanced structural performance
Solution Approach 2:
The patent merges two different construction technologies - 3D printing and steel strand weaving - into a single integrated process. The steel strands are woven continuously during the 3D printing process, combining the advantages of automated construction with reinforced structural performance
3Strength
If rigid steel reinforcement is used with 3D printed concrete, then structural bearing capacity is improved, but integration with 3D printing process becomes difficult
Solution Approach 1:
The patent changes the flexibility parameter of the steel reinforcement from rigid to flexible, allowing it to be continuously woven through the 3D printing process. This enables easy integration while maintaining and even enhancing bearing capacity through the flexible steel-cement composite structure
Data Source
AI summary
The present invention discloses a construction method of 3D printing and weaving integrated building, comprising: selecting basic building structural components, using finite element analysis after spatial modeling, and combining stress nephogram to set a discrimination domain value and optimize a structure space, obtaining a structural component skeleton; calculating and analyzing the structural component skeleton, determining a weaving range and weaving density of a wire according to weak areas and sizes under structural stress; and then determining a printing process and weaving process according to the structural component skeleton, the weaving range and the weaving density; preparing 3D printing material; 3D printing a matrix and weaving the wire according to the printing process and weaving process, constructing layer by layer, or printing segments, and then connecting segments by preset tenoning structural sections to form a 3D printing and weaving integrated building. The construction method of the present invention has high toughness, fatigue resistance, longevity and other advantages; so that each part of the building can not only meet the different requirements of structural mechanics, but also can achieve economic beauty and modeling art on the basis of safety and reliability.