Zhejiang University

Xuzhou Jianyan Intelligent Construction Technology Co., Ltd

Hangzhou Guanli Intelligent Technology Co., Ltd.

Xiaoyan Sun

Hailong Wang

Zhicheng Zhang

Chao Gao

Jie Chen

Long Chen

Qun Wang

Zhennan Wu

Baixing Ye

Kemeng Bao

Meng Zhang

Ming Xia

Xiqiang Lin

Guanfei Tian

Lan Lu

Provide is a lattice-structured concrete 3D printing method for large-scale component forming. The method includes: S, obtaining 3D data of a component to be printed and establishing a 3D model of the component to be printed, wherein the 3D data includes a coordinate set of all points and lines of the component to be printed in a 3D space; S, obtaining a print head configuration and setting a printing parameter; S, obtaining the printing parameter and generating lattice information of the 3D model using an improved slicing algorithm based on a feature of the component to be printed; S, controlling one or more print heads to perform 3D printing based on the lattice information; and S, post-processing a printed component to obtain a finished product. The method can be applied to 3D printing and forming of concrete structures.

Lattice-structured concrete three-dimensional (3D) printing methods for component forming

A construction method for a spatial aggregate reinforced 3D printed concrete structure, includes: selecting a structural member, performing mechanical analysis, and determining a basic dosage and a printing and weaving process of an implanted reinforcement, determining a type, positioning and dosage of a spatial aggregate, preparing 3D printing materials, editing an electromagnetic signal and positioning push program according to the selected positioning and dosage of the spatial rigid aggregate, the 3D printing material is extruded along the printing and weaving process and the spatial rigid aggregate is evenly scattered, and realizing the connection between spatial aggregates and the connection between the spatial aggregates and the reinforcements, a spatial aggregate reinforced 3D printed concrete structure is formed after layer-by-layer construction, superimposed and hardened, or after segmented printing, component nodes are connected through lap design of preset tenon and mortise and reinforcement.

Construction method for spatial aggregate reinforced 3D printed concrete structure

The present invention discloses a 3D weaving and printing integrated structure construction equipment including: a printing matrix material preparation device, processing the printing matrix raw materials and then delivering them to a printing matrix extrusion device; a printing matrix extrusion device, having the functions of promoting extrusion and lamination molding, and printing a matrix; a wire pushing and spatial anchoring device, using a nail-shooting to position and tow a rope/wire/cable for continuously weaving layer by layer stacking along the vertical direction; an electromagnetic guided shuttle dropping device, weaving the rope wire/cable material along the longitude and latitude directions; a locking device, positioning and fixing the rope/wire/cable woven along the longitude and latitude directions; a tensioning traction device, performing spatial multi-directional prestress tensioning on the rope/wire/cable woven along the longitude and latitude directions.

Construction equipment for a 3D weaving and printing integrated structure

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.

Construction method of 3D printing and weaving integrated building

The present invention discloses a centrifugal intelligent construction device for excavating concrete structure: a push-type excavation equipment, excavating rocks and soil, and collecting crushed stones, sand, soil, and water; a centrifugal screening equipment, performing centrifugal screening and classification collection on the collected crushed stones, sand, soil, and water; the intelligent batching equipment, which matches the classified crushed stones, sand, soil, and water according to their quality and fineness, adding cementitious materials, auxiliary materials, additives, and activators, and mixing them to obtain a mixed wet material; a centrifugal printing equipment, pumping and extruding the mixed wet materials, and using a centrifugal rotating outer cylinder to print and compact them into dense shape; an intelligent reinforcement equipment, integrating reinforcements between the layers of printed concrete strips by using the wall mounted laying, positioning and inserting reinforcements inside the printed concrete strips during the centrifugal printing process to form an integrated reinforced concrete structure. The device can achieve the additive and intelligent construction of closed concrete structures in underground, underwater, and extreme construction environments, solving the technical dilemma of insufficient engineering application scope of open additive manufacturing technology.

Centrifugal intelligent construction device for excavation concrete structure, and application thereof

Growing community of inventors

Hangzhou, China

Xiaoyan Sun