A leaning arch membrane structure

Abstract

The present invention relates to a leaning arch frame membrane structure, belonging to the technical field of structural frames. The present invention mainly solves the technical problems existing in the existing steel structure, such as high anti-corrosion cost, large amount of high-altitude operations and high risk factor, difficult supervision, general space utilization, high demolition cost, and unsuitability for installing membrane materials. The technical solution of the present invention is: a leaning arch frame membrane structure, which includes: a bottom steel structure support and several groups of top frame structures; the bottom steel structure support includes several columns arranged in a rectangular shape, and horizontal steel cables are arranged between the tops of adjacent columns; the top frame structure includes two leaning arch ribs arranged symmetrically and several connecting beams arranged between the two leaning arch ribs; several groups of the top frame structures are paved with architectural membrane materials on the top surface, and top surface steel cables are arranged between two adjacent groups of top frame structures above the tensioned membrane. The present invention has the advantages of low steel content, simple construction process, short construction period, low cost, and suitable for membrane material closure.

Description

Technical Field

[0001] The invention belongs to the technical field of structural frames, and particularly relates to an inclined arch frame 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 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, and unsuitability for installing membrane materials.

[0006] In order to solve the above problems, the technical solution of the present invention is: a leaning arch frame 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 steel 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] The bottom steel structure support comprises a plurality of columns arranged in a rectangular shape, and horizontal steel cables are arranged between the tops of adjacent columns;

[0008] The top frame structure includes two inclined arch ribs symmetrically arranged with respect to each other and a plurality of connecting cross beams arranged between the two inclined arch ribs; the two inclined arch ribs are connected at the top;

[0009] The top surfaces of several groups of top frame structures are paved with architectural membrane materials, and top surface steel cables are arranged between two adjacent groups of top frame structures.

[0010] Furthermore, the angles between the two inclined arch ribs of a set of top frame structures and the vertical direction are both 20 degrees.

[0011] Furthermore, the leaning arch membrane structure is provided with a plurality of pipe assembly nodes.

[0012] Furthermore, the architectural membrane material is a tensioned membrane.

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

[0014] Figure 1 It is a schematic diagram of the structure 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 is a leaning arch frame 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 installed above the bottom steel structure support 1; a plurality of side steel 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] The bottom steel structure support 1 includes a plurality of columns 1-2 arranged in a rectangular shape, and a horizontal steel cable 1-1 is arranged between the tops of adjacent columns 1-2;

[0018] The top frame structure 2 includes two inclined arch ribs 2-2 symmetrically arranged with respect to each other 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;

[0019] The top surfaces of several groups of the top frame structures 2 are paved with architectural membrane materials, and top surface steel cables 2 - 1 are provided between two adjacent groups of top frame structures 2 .

[0020] The angles between the two inclined arch ribs 2 - 2 of a set of top frame structures 2 and the vertical direction are both 20 degrees.

[0021] The inclined arch frame membrane structure is provided with a plurality of pipe assembly nodes.

[0022] The architectural membrane material is a tensioned membrane.

[0023] Taking a 100-meter span as an example, the bearing capacity of this structure under static load and various live loads is calculated. The specific calculation sheet is as follows:

[0024] SAP2000Word Calculation Book

[0025] 1Model Information

[0026] 1.1 Material Information

[0027] Table 1.1 Material properties

[0028]

[0029] 1.2 Cross-section information

[0030] Table 1.2-1 Frame section

[0031]

[0032]

[0033] Table 1.2-2 Surface section

[0034] name Material Face attributes type Thickness(mm) MO1 C30 Shell Membrane 0.00

[0035] 2 Load information

[0036] 2.1 Loading arrangement information

[0037] Table 2.1 Surface load - uniform (shell)

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

[0045]

[0046]

[0047]

[0048]

[0049]

[0050]

[0051]

[0052]

[0053]

[0054]

[0055]

[0056]

[0057]

[0058]

[0059]

[0060]

[0061] 2.2 Wind load information 1.WXChinese2010

[0062]

[0063]

[0064] 2.3 Earthquake load information

[0065] 2.4 Load condition definition

[0066] Table 2.4 Load condition definitions

[0067] Condition Name type DEAD LinearStatic MODAL Modal LL LinearStatic LL1 LinearStatic LL2 LinearStatic WX LinearStatic NLSTAT1 NonlinearStatic BUCK1 Buckling BUCK2 Buckling BUCK3 Buckling

[0068] 2.5 Load combinations

[0069] Table 2.5 Load combinations

[0070]

[0071]

Claims

1. A leaning arch 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 installed above the bottom steel structure support (1); a plurality of side steel 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; The bottom steel structure support (1) comprises a plurality of columns (1-2) arranged in a rectangular shape, and a horizontal steel cable (1-1) is arranged between the tops of adjacent columns (1-2); The top frame structure (2) comprises two inclined arch ribs (2-2) symmetrically arranged with respect to each other 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 top surfaces of several groups of top frame structures (2) are paved with architectural membrane materials, and top surface steel cables (2-1) are provided between two adjacent groups of top frame structures (2); The angles between the two inclined arch ribs (2-2) of a set of top frame structures (2) and the vertical direction are both 20 degrees; a plurality of pipe assembly nodes are arranged on the inclined arch frame membrane structure; and the architectural membrane material is a tensioned membrane.

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