Suspended-dome multi-time prestressed construction method

A suspend dome and construction method technology, applied to roofs, building components, buildings, etc., can solve the problems of inconvenient selection of components, uneven distribution, waste of materials, etc.

Inactive Publication Date: 2008-04-09
BEIJING UNIV OF TECH
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) The internal force of the single-layer reticulated shell on the upper layer of the suspensive dome is passively generated by the lower layer of steel cables and external loads, and cannot self-adjust the internal force, so that most of the hoop members of the upper single-layer reticulated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Suspended-dome multi-time prestressed construction method
  • Suspended-dome multi-time prestressed construction method
  • Suspended-dome multi-time prestressed construction method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] As shown in Figure 1, Figure 2, Figure 4, Figure 6, and Figure 7, the construction molding process of this embodiment is: the first step is to install the upper central pressure ring 1, the upper radial rod 2, and the edge member 7, to form The upper reticulated shell structure is shown in Figure 7. The specific installation method is as follows: you can install the edge member 7 first, and then install the upward radial rod 2 in the order from the inside to the outside. The upper radial rod 2 of the outermost ring is connected to the edge member 7 at one end, and the other end is connected to other upper diameters. The rods 2 are connected end to end, one end of the upper radial rod 2 of the innermost ring is connected end to end with other upper radial rods 2, and the other end is connected with the central pressure ring 1. It is also possible to install these components in the reverse order, or follow the construction sequence starting from the inside ...

Example Embodiment

[0034] Example 2

[0035] As shown in Fig. 3, Fig. 5, Fig. 6, and Fig. 8, the construction method of this embodiment is the same as that of embodiment 1, except that the upper central pressure ring 1, the upper radial rod 2, the upper circumferential rod 3 The grid contour shape shown in Fig. 3 composed of the edge member 7 is an ellipse; the support system formed by the strut 4, the lower radial cable 5, and the lower hoop cable 6 is selected as an ellipse as shown in Fig. 5 .

Example Embodiment

[0036] Example 3

[0037] The structure of this embodiment is the same as that of the first embodiment, except that the upper central pressure ring 1, the upper radial rod 2, the upper circumferential rod 3, and the edge member 7 are formed by a polygonal grid.

[0038] The multiple prestressed dome structure formed by this construction method not only retains the advantages of the traditional chord dome structure, but also has its own unique advantages: it reduces the pressure on the upper ring members and even converts them into tension, reducing The material consumption improves the stability of the components, the local stability of the reticulated shell and the overall stability of the entire structure; the internal force distribution of the upper radial rods is more uniform, which is conducive to the unification of component forms and facilitates design and construction. Since the upper ring members are not installed when the prestress is applied, the value of the applied pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a suspend dome structure multi-prestressed construction method used in construction field. The construction method is that: firstly, a central pressure ring, an upper radial bar and edge elements are arranged on an upper layer; secondly, a lower radial rope, a lower ring rope and a strut are arranged on a lower layer; thirdly, prestress is applied in the structure by stretching the lower ring rope or stretching the lower radial rope or adjusting the length of the strut; fourthly, a ring bar is arranged; fifthly, an external load is applied on the structure. Compared with the structure formed by a traditional method, the suspend dome structure formed by the invention reduces peak pressure of elements with concise force, even changes a part of elements from a pressure bar to a tension bar, avoids instability of elements, at the same time enhances the entire stability of the whole structure and enlarges the ultimate bearing capacity. Furthermore, the invention leads a more even distribution of internal force of the upper layer network shell bar elements, is helpful to the unity of the elements and convenient for design and construction, at the same time, the invention reduces the applied prestress value and reduces construction difficulty.

Description

technical field [0001] The invention relates to a construction method of a suspension dome structure applied in the construction field, in particular to a multiple prestressed construction method of a suspension dome. Background technique [0002] In recent years, with the development of prestressed steel structures, a large number of new structural systems have emerged, such as suspend dome structures. Suspension dome is a new structure formed by combining cable dome and single-layer reticulated shell, that is, the upper flexible cables of the cable dome are replaced by single-layer reticulated shell, which increases the roof stiffness and reduces construction difficulty. At present, the traditional construction method is to install the upper reticulated shell first, and then stretch the hoop cables in a certain order after the upper reticulated shell is completely installed. However, the suspension dome formed by the traditional method has the following disadvantages: [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E04B7/08
Inventor 刘学春张爱林张传成
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap