A leaning arch prestressed tensile membrane structure

Abstract

The present invention relates to a prestressed tensioned membrane structure of an inclined arch frame, belonging to the technical field of structural frames. It mainly solves the technical problems of the existing steel structure, such as high anti-corrosion cost, general space utilization, high demolition cost, unsuitability for installing membrane materials, unstable structure, etc. The technical scheme of the present invention is: a prestressed tensioned membrane structure of an inclined arch frame, wherein: it includes a bottom steel structure support and several groups of top frame structures; there is a spacing between adjacent top frame structures, and the top frame structure includes two inclined arch ribs symmetrically arranged toward the middle and several connecting beams arranged between the two inclined arch ribs; several groups of the top frame structures are paved with tensioned membranes on the top surface, and the tensioned membranes between the two adjacent groups of top frame structures are provided with transverse top surface zippers, and the front and rear ends of the transverse top surface zippers are respectively provided with two branch chain zippers. The present invention has the advantages of simple construction process, short construction period, low cost, suitable for membrane material closure, stable structure, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of structural frames, and particularly relates to an inclined arch frame prestressed tensioned membrane structure. Background Art

[0002] The long-span space structure is an important criterion for measuring the level of a country's architectural technology, and is also a symbol of a country's degree of civilization development. It has a beautiful spatial shape, and has the advantages of single rods, reasonable force, high rigidity, and light weight. Countries around the world attach great importance to the theoretical and technical research of its structure. In the past 10 years, with the development of my country's economy and the continuous progress of science and technology, various forms of long-span space steel structures have been widely used in large public buildings such as stadiums, exhibition centers, theaters, airport terminals, and railway stations.

[0003] Most existing steel structures are grid structures: the components are all steel pipes, with thin walls, no ventilation, and are very easy to corrode; there are many dead angles in the rods, and if the rust removal work is not thorough, it is very easy to affect the overall quality of the grid. Secondary anti-corrosion work is difficult and the cost of anti-corrosion is high; there are too many rods, the amount of high-altitude work is large and the risk factor is high, and supervision is difficult; the grid is thick and the space utilization rate is average; the removal cost is high; it is not suitable for installing membrane materials.

[0004] The portal steel frame is a traditional structural system. The upper main frame of this type of structure includes rigid frame diagonal beams, rigid frame columns, supports, purlins, tie rods, gable frames, etc. The portal steel frame lightweight house steel structure has the characteristics of simple force, clear force transmission path, fast component production, easy factory processing, short construction period, etc., so it is widely used in industrial and civil buildings such as industry, commerce, and cultural and entertainment public facilities. However, it has defects such as high steel content and high cost. Summary of the invention

[0005] The present invention aims to overcome the shortcomings of the prior art and provide a leaning arch prestressed tensioned membrane structure to solve the technical problems of the existing steel structure, such as high anti-corrosion cost, large amount of high-altitude work and high risk factor, difficult supervision, general space utilization, high demolition cost, unsuitable for installation of membrane materials, unstable structure, etc.

[0006] In order to solve the above problems, the technical solution of the present invention is: a leaning arch prestressed tensioned membrane structure, which includes: a bottom steel structure support and a plurality of top frame structures, wherein the plurality of top frame structures are evenly installed above the bottom steel structure support; a plurality of side cables are arranged between the top frame structures near the left and right edges and the bottom steel structure supports near the left and right edges;

[0007] There is a spacing between adjacent top frame structures, and the top frame structure includes two inclined arch ribs symmetrically arranged toward the middle and a plurality of connecting crossbeams arranged between the two inclined arch ribs; the tops of the two inclined arch ribs are connected; the angles between the two inclined arch ribs of a set of top frame structures and the vertical direction are both 10 degrees;

[0008] The bottom steel structure support includes a plurality of columns arranged in a rectangular shape, and horizontal cables are arranged between the tops of adjacent columns; columns are arranged below both ends of the inclined arch ribs of the top frame structure;

[0009] A tensioning membrane is laid on the top surface of several groups of top frame structures, and a transverse top surface cable is arranged above the tensioning membrane between two adjacent groups of top frame structures, and two branch chain cables are arranged at the front and rear ends of the transverse top surface cable;

[0010] One ends of the two branch chain cables located at the front end of the transverse top surface cable are respectively connected to the front end of the transverse top surface cable, and the other ends of the two branch chain cables located at the front end of the transverse top surface cable are respectively connected to the tops of two adjacent columns of the two adjacent groups of top frame structures that are inclined below the front end of the arch rib;

[0011] One end of the two branch chain cables located at the rear end of the transverse top surface cable is respectively connected to the rear end of the transverse top surface cable, and the other end of the two branch chain cables located at the rear end of the transverse top surface cable is respectively connected to the top of two adjacent columns inclined below the rear end of the arch rib of two adjacent groups of top frame structures.

[0012] Furthermore, the inclined arch prestressed tensioned membrane structure is provided with a plurality of tube truss assembly nodes.

[0013] Compared with the prior art, the present invention has the advantages of low steel content, simple construction process, short construction period, low cost, suitable for membrane material sealing, stable structure, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1 The illustrated example is a leaning arch prestressed tensile membrane structure, which comprises a bottom steel structure support 1 and a plurality of top frame structures 2, wherein the plurality of top frame structures 2 are evenly mounted above the bottom steel structure support 1; a plurality of side cables 3 are arranged between the top frame structures 2 near the left and right edges and the bottom steel structure support 1 near the left and right edges;

[0017] There is a spacing between adjacent top frame structures 2, and the top frame structure 2 includes two inclined arch ribs 2-2 symmetrically arranged toward the middle and a plurality of connecting cross beams 2-3 arranged between the two inclined arch ribs; the two inclined arch ribs 2-2 are connected at the top; the angle between the two inclined arch ribs 2-2 of a group of top frame structures 2 and the vertical direction is 10 degrees;

[0018] The bottom steel structure support 1 includes a plurality of columns 1-2 arranged in a rectangular shape, and a horizontal cable 1-1 is arranged between the tops of adjacent columns 1-2; columns 1-2 are arranged below both ends of the inclined arch rib of the top frame structure;

[0019] A tension membrane is laid on the top surface of several groups of the top frame structures 2, and a transverse top surface cable 2-1 is provided above the tension membrane between two adjacent groups of the top frame structures 2, and two branch chain cables 2-4 are provided at the front and rear ends of the transverse top surface cable 2-1;

[0020] One end of the two branch chain cables 2-4 located at the front end of the transverse top surface cable 2-1 is respectively connected to the front end of the transverse top surface cable 2-1, and the other end of the two branch chain cables 2-4 located at the front end of the transverse top surface cable 2-1 is respectively connected to the top of two adjacent columns 1-2 below the front end of the arch rib 2-2 of two adjacent groups of top frame structures 2;

[0021] One end of the two branch chain cables 2-4 located at the rear end of the transverse top surface cable 2-1 is respectively connected to the rear end of the transverse top surface cable 2-1, and the other end of the two branch chain cables 2-4 located at the rear end of the transverse top surface cable 2-1 is respectively connected to the top of two adjacent columns 1-2 below the rear end of the arch rib 2-2 of two adjacent groups of top frame structures 2.

[0022] The inclined arch prestressed tensioned membrane structure is provided with a plurality of pipe truss assembly nodes.

Claims

1. A leaning arch prestressed tensioned membrane structure, characterized in that: It comprises a bottom steel structure support (1) and a plurality of groups of top frame structures (2), wherein the plurality of groups of top frame structures (2) are evenly mounted above the bottom steel structure support (1); a plurality of side cables (3) are arranged between the top frame structures (2) near the left and right edges and the bottom steel structure support (1) near the left and right edges; There is a spacing between adjacent top frame structures (2), the top frame structure (2) comprising two inclined arch ribs (2-2) symmetrically arranged toward the middle and a plurality of connecting cross beams (2-3) arranged between the two inclined arch ribs; the two inclined arch ribs (2-2) are connected at the top; the angle between the two inclined arch ribs (2-2) of a group of top frame structures (2) and the vertical direction is 10 degrees; The bottom steel structure support (1) comprises a plurality of columns (1-2) arranged in a rectangular shape, and a horizontal cable (1-1) is provided between the tops of adjacent columns (1-2); columns (1-2) are provided below both ends of the inclined arch rib of the top frame structure; The top surfaces of the plurality of groups of top frame structures (2) are paved with tension membranes, and transverse top surface cables (2-1) are provided above the tension membranes between two adjacent groups of top frame structures (2), and two branch chain cables (2-4) are provided at the front and rear ends of the transverse top surface cables (2-1); One end of two branch chain cables (2-4) located at the front end of the transverse top surface cable (2-1) is respectively connected to the front end of the transverse top surface cable (2-1), and the other end of the two branch chain cables (2-4) located at the front end of the transverse top surface cable (2-1) is respectively connected to the top of two adjacent columns (1-2) below the front ends of the two adjacent groups of top frame structures (2); One end of two branch chain cables (2-4) located at the rear end of the transverse top surface cable (2-1) is respectively connected to the rear end of the transverse top surface cable (2-1), and the other end of the two branch chain cables (2-4) located at the rear end of the transverse top surface cable (2-1) is respectively connected to the top of two adjacent columns (1-2) below the rear ends of two adjacent groups of top frame structures (2).

2. The inclined arch prestressed tensile membrane structure according to claim 1 is characterized in that: The inclined arch prestressed tensioned membrane structure is provided with a plurality of pipe assembly nodes.

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