CN115059179A - Large-span column/cable truss net structure - Google Patents
Large-span column/cable truss net structure Download PDFInfo
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- CN115059179A CN115059179A CN202210770476.8A CN202210770476A CN115059179A CN 115059179 A CN115059179 A CN 115059179A CN 202210770476 A CN202210770476 A CN 202210770476A CN 115059179 A CN115059179 A CN 115059179A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3217—Auxiliary supporting devices used during erection of the arched structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3229—Arched structures; Vaulted structures; Folded structures constructed using a boom
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Structural Engineering (AREA)
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Abstract
The utility model provides a large-span post/cable truss web frame, includes the arch truss, the arch truss is including indulging the horizontal arch truss of the horizontal alternately multichannel and vertically taking the horizontal segment, the arch truss of horizontal arch truss and vertical taking the horizontal segment intersects on the horizontal plane of same height, forms a whole through the integration node, constitutes a three-dimensional truss structure who wholly bears vertical load and two-way horizontal load effect at vertical and horizontal direction, horizontal arch truss 1 and the arch truss 2 of taking the horizontal segment constitute by last chord, lower chord, horizontal web member, vertical cross web member, inclined plane horizontal pull rod, inclined plane cross web member, horizontal cross web member, vertical web member and connecting plate. The novel column/cable truss net structure provided by the invention has good bearing effect and definite force transmission path, can realize large-span building construction, and can also be used for space buildings of other celestial bodies.
Description
Technical Field
The invention relates to the technical field of novel building structures, in particular to a large-span column/cable truss net structure.
Background
With the rapid development of Chinese economy in recent years, large-span structures such as bamboo shoots in spring after rain emerge rapidly, and are generally applied to public buildings such as stadiums, airports, high-speed railway stations and the like, and a plurality of novel structural forms begin to be applied. The truss and the net rack are used as an economic and economical steel structure form, the main stress is axial tension or pressure, the truss and the net rack are widely applied due to the fact that materials are saved, the span is large enough, and the stress performance is good, but the main application is also used as a horizontal truss beam or a plane/curved net rack independently.
With the rapid development of aerospace technology, development and reproduction of outer stars become possible, and considering that many outer stars lack a dense enough atmosphere and human beings can only live in a building with one standard atmospheric pressure inside, so that huge atmospheric pressure difference exists between the inside and the outside of a space building, the stress of the building structure may not be downward but upward, at the moment, a steel cable can be used for replacing a traditional steel column to bear upward tensile force, the steel cable is more economical and has no limitation of slenderness ratio.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the background technology and provide a large-span column/cable truss net structure with simple structure, definite force transmission and wide application range.
The technical scheme adopted by the invention for solving the technical problems is that the large-span column/cable truss net structure comprises an arch truss, and further comprises a plurality of transverse arch trusses which are longitudinally and transversely crossed and an arch truss which is longitudinally provided with a horizontal section, wherein the transverse arch trusses and the longitudinal arch truss which is provided with the horizontal section are crossed on the horizontal plane at the same height and form a whole through integrated nodes to form a three-dimensional truss structure which integrally bears vertical load and bidirectional horizontal load in the vertical and horizontal directions;
an arc-shaped net rack is arranged in an area surrounded by horizontal sections of the plurality of transverse arch-shaped trusses and the arch-shaped truss with the horizontal section, a sealing skin or a waterproof plate is arranged on each node outside the arc-shaped net rack, a spherical net rack is arranged in an area surrounded by the transverse arch-shaped truss and the arch-shaped section at the tail end of the arch-shaped truss with the horizontal section, and a sealing skin or a waterproof plate is arranged on each node outside the spherical net rack;
the transverse arched trusses and the arched trusses with the horizontal sections are composed of upper chords, lower chords, horizontal web members, vertical cross web members, inclined plane horizontal pull rods, inclined plane cross web members, horizontal cross web members, vertical web members and connecting plates;
the integrated nodes have similar structural forms in the horizontal plane direction and the vertical direction and are composed of longitudinal or transverse upper chords, lower chords, horizontal cross web members, vertical cross web members and vertical web members; in the horizontal plane, an upper chord and a lower chord of the arched truss with the horizontal section are fixed on the upper chord and the lower chord of the transverse arched truss, and a horizontal cross web member is arranged in a rectangle formed by the chords so as to keep the structure stable; in the vertical plane, vertical cross web members are arranged in a rectangular space formed by the upper chord member, the lower chord member and the adjacent vertical web members to keep a triangular stable structure;
the upper side nodes of the end parts of the arc-shaped net rack and the spherical net rack are arranged on the nodes of the transverse arch truss and the upper chord of the arch truss with the horizontal section, and are connected through the spherical nodes on the cross-shaped support; the lower side nodes of the horizontal arched truss are arranged on the vertical crossed web members with the horizontal arched truss, and are connected through spherical nodes on the cross-shaped support, and the vertical crossed web members, the inclined plane crossed web members on the inclined plane and the inclined plane horizontal pull rod can play a role in transferring the load of the net rack nodes.
Furthermore, the two upper chords are vertically connected by a horizontal web member at 90 degrees, the upper chords and the lower chords on the same side are vertically connected by vertical web members at 90 degrees, and two vertical cross web members are connected with two diagonal nodes in a rectangle formed by the two adjacent vertical web members, the upper chords and the lower chords to form a stable triangular structure; two horizontal web members adjacent to each other are connected with two diagonal nodes by two horizontal cross web members in a rectangle formed by the upper chord member or the lower chord member to form a stable triangular structure; the inclined plane horizontal pull rod and the inclined plane cross web members are positioned in an inclined plane formed by the vertical cross web members on the two sides, the inclined plane horizontal pull rod is connected with the cross points of the vertical cross web members on the two sides in a pulling mode, one end of each inclined plane cross web member is connected with the cross point of the vertical cross web member in a pulling mode, and the other end of each inclined plane cross web member is connected with the connecting node of the upper chord member or the lower chord member and the vertical web members in a pulling mode.
Furthermore, the integrated node is made of circular high-strength metal pipes through equal-strength welding, triangular stiffening ribs are arranged around the integrated node through equal-strength welding for stiffening, and the integrated node is connected with the transverse arch truss and the arch truss with the horizontal section through flanges.
Further, when the internal and external atmospheric pressures are consistent, the nodes in the transverse arched truss span are supported by adopting transverse arched truss support rods, so that the load transfer span of the transverse arched truss and the arched truss with the horizontal section is reduced; the transverse arched truss support rod column is made of one of a reinforced concrete column, a metal round pipe, a square pipe or H-shaped steel.
Further, when the internal atmospheric pressure is far greater than the external atmospheric pressure, the cross-center and 1/8 circumferential nodes of the transverse arched trusses and the arched trusses with the horizontal sections are connected by metal cables so as to transmit the pulling force generated by subtracting the air pressure difference between the rarefied air pressure of the outer star ball and the self weight of the structure from the internal standard atmospheric pressure.
Further, the sealing skin or the waterproof plate is made of one of glass, rubber, plastic, metal, alloy or synthetic high-strength inorganic non-metallic materials; the sealing skin or the waterproof board is made of materials capable of absorbing ultraviolet rays and cosmic rays so as to isolate the incidence of the ultraviolet rays or the cosmic rays; or the light-transmitting material is made of light-transmitting materials selectively according to the wavelength so as to adjust the brightness and the spectrum range of the sidereal light.
Furthermore, the three-dimensional truss structure is formed by a plurality of longitudinal and transverse arched trusses with horizontal sections, is integrally deformed in the vertical and horizontal directions and has the functions of bearing vertical load and bidirectional horizontal action.
The invention can transmit the acting force or load transmitted by the sealing skin or waterproof board arranged outside the arc net rack and the spherical net rack to the trusses through the arc net rack and the spherical net rack and then to the posts and the metal cables at the two ends of the trusses and the midspan (or 1/8 circumferential node) through the arc trusses and the spherical net rack, the force transmission path is clear, the net rack and the truss rods only bear axial tension or pressure, the bearing effect is good, the material is economical, the spanning distance is large, and the design and construction of large-span buildings can be realized.
Drawings
FIG. 1 is a structural floor plan of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken at C-C of FIG. 1;
FIG. 5 is a schematic cross-sectional view taken at D-D in FIG. 3;
FIG. 6 is a schematic cross-sectional view taken at E-E in FIG. 4;
fig. 7 is a schematic sectional view at F-F in fig. 6.
In the figure: the structure comprises a transverse arched truss 1, an arched truss 2 with a horizontal section in the longitudinal direction, an integrated node 3, an arc-shaped net rack 4, a sealing skin or a waterproof plate 5, column tops 6 at two ends of the truss, a spherical net rack 7, a wall top 8, web members 9, a beam or a truss beam 10, a metal cable 11, an airtight enclosure wall 12, a flange plate 13, a transverse arched truss support rod column 14 and a column 15; an upper chord 21, a lower chord 22, a horizontal web member 23, a vertical cross web member 24, an inclined horizontal pull rod 25, an inclined cross web member 26, a horizontal cross web member 27, a cross-shaped support 28 and a vertical web member 29; connecting plates 30, rack nodes 31, and rack bars 32.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the figures and the detailed description.
Referring to the attached drawings 1-7, the embodiment comprises arched trusses, wherein the arched trusses comprise transverse arched trusses 1 and longitudinal arched trusses 2 with horizontal sections, the transverse arched trusses 1 and the longitudinal arched trusses 2 with the horizontal sections are intersected on the horizontal plane at the same height, an integrated node 3 is formed to form an integrated three-dimensional truss structure in the vertical and horizontal directions, and the integrated node 3 can bear and transmit vertical and horizontal bidirectional acting force and load.
An arc-shaped net rack 4 is arranged in an area surrounded by the horizontal sections of the plurality of transverse arch trusses 1 and the arch trusses 2 with the horizontal sections, sealing skins (or waterproof plates) 5 are arranged on all nodes outside the arc-shaped net rack 4, the load formed by subtracting external air pressure from internal standard atmospheric pressure when the external space celestial globe such as a mars or a moon is loaded by the gravity (or air pressure generated by air pressure difference) borne by the sealing skins (or the waterproof plates) 5 can be transmitted to all nodes of the arc-shaped net rack 4 and converted into axial tension or pressure of all rod pieces of the arc-shaped net rack 4, and then the axial tension or the axial pressure is transmitted to the transverse arch trusses 1 and the rod pieces of the arch trusses 2 with the horizontal sections through the cross-shaped support 28 and the spherical nodes 31 of the arc-shaped net rack 4 on the transverse arch trusses 1 and the arch trusses 2 with the horizontal sections (the load transmitted by the vertical cross-shaped web members 24, the cross-shaped web members 26 on the inclined planes and the inclined horizontal tension rods 25 of the inclined plane), then transmitted to the column tops 6 at the two ends of the truss; meanwhile, the other side of the arc-shaped net rack 4 is arranged on the airtight enclosing wall 12, and the load of the net rack is transmitted to the airtight enclosing wall 12 through the node on the top end 8 of the wall body.
A spherical net rack 7 is arranged in the area surrounded by the transverse arched truss 1 and the arched section at the tail end of the arched truss 2 with the horizontal section, a sealing skin (or a waterproof plate) 5 is arranged on each node outside the spherical net rack 7, the gravity (the air pressure load generated by the air pressure difference) born by the sealing skin (or the waterproof plate) 5 can be transmitted to each node of the spherical net rack 7 and converted into the tensile force or the pressure of each rod of the spherical net rack 7, and then the tensile force or the pressure is transmitted to the transverse arched truss 1 and the rod of the arched truss 2 with the horizontal section (the load transmitted from the spherical nodes is transmitted by the vertical cross web members 24, the cross slope web members 26 on the inclined plane and the slope horizontal pull rods 25 together through the spherical net rack 7, the cross support 28 and the spherical nodes 31 at the joint of the transverse arched truss 1 and the arched truss 2 with the horizontal section ) (ii) a The bottom edge of the spherical net rack 7 is supported on the airtight wall 12 at the bottom, and the net rack load is transmitted to the airtight wall 12 through a support on the top end 8 of the wall.
The transverse arched truss 1 or the arched truss 2 with the horizontal section in the embodiment is composed of an upper chord 21, a lower chord 22, a horizontal web member 23, a vertical cross web member 24, a slant plane horizontal pull rod 25, a slant plane cross web member 26, a horizontal cross web member 27, a vertical web member 29 (covered by the vertical cross web member 24 in the figure) and a connecting plate 30, which are shown in fig. 6 and 7 in detail, wherein two upper chord 21 are connected by the horizontal web member 23 at 90 degrees, the upper chord 21 and the lower chord 22 at the same side are connected by the vertical web member 29 at 90 degrees, and two adjacent vertical web members 29 are connected with two diagonal nodes in a rectangle formed by the upper chord 21 and the lower chord 22, so as to form a stable triangular structure (wherein the vertical cross web members 24 are in the form of angle steels); two horizontal cross web members 27 are connected with two diagonal nodes in a rectangle formed by two adjacent horizontal web members 23 and the upper chord 21 or the lower chord 22 to form a stable triangular structure; the inclined plane horizontal pull rod 25 and the inclined plane cross web member 26 are positioned in an inclined plane formed by the vertical cross web members 24 at two sides in a dotted frame shown in fig. 6, the inclined plane horizontal pull rod 25 is tied to the cross point (connecting plate 30) of the vertical cross web members 24 at two sides, one end of the inclined plane cross web member 26 is tied to the cross point (connecting plate 30) of the vertical cross web member 24, and the other end is tied to the connecting node of the upper chord member 21 or the lower chord member 22 and the vertical web member 29. The nodes of the vertical cross web members 24 on the longitudinal and transverse girders also transfer the internal force loads of the net frame rods 32 from the net frame spherical nodes 31 through the cross-shaped supports 28.
The gravity load or differential pressure load transmitted from the arc-shaped net frame 4 or the spherical net frame 7 at each node of the horizontal arched truss 1 and the arched truss 2 with the horizontal segment can be converted into the axial tension and compression force of the web members 9 (the general name of the horizontal web member 23, the vertical cross web member 24, the inclined horizontal pull rod 25, the inclined cross web member 26, the horizontal cross web member 27, and the vertical web member 29), the upper chord member 21, and the lower chord member 22 through the truss (the horizontal arched truss 1 and the arched truss 2 with the horizontal segment) and transmitted to the column tops 6 at both ends of the truss. The integrated node 3 is adopted at the intersection of the transverse arched truss 1 and the arched truss 2 with the horizontal section, the integrated node 3 can be manufactured in a factory and assembled on site, as shown in fig. 5, on the plane of the integrated node 3, the upper chord 21 and the lower chord 22 which are longitudinally or transversely circular are not broken, the upper chord 21 and the lower chord 22 in the other direction are welded on the upper chord 21 and the lower chord 22 which are longitudinally or transversely by equal strength welding (primary welding seam), the intersection of the upper chord 21 and the lower chord 22 can be reinforced by stiffening ribs, and vertical cross web members 24 are arranged in a rectangular or square space formed by the upper chord 21, the lower chord 22 and adjacent vertical web members 29 in the vertical plane so as to keep stable (a stable triangular structure is formed by connecting the node plates); and on the horizontal plane, a horizontal cross web member 27 is arranged in a rectangular or square space formed by the longitudinal and transverse upper chord 21 or the lower chord 22 so as to keep stability (a stable triangular structure is formed by connecting node plates). The connection between the integrated node 3 and the transverse arched truss 1 and the arched truss 2 with the horizontal section can be connected through bolts by using a flange plate 13.
When the present embodiment is applied to the earth, the net frame (including the arc-shaped net frame 4 or the spherical net frame 7) and the truss (including the transverse arched truss 1 and the arched truss 2 with the horizontal section) mainly bear the vertical gravity, the nodes in the span of the arched truss 1 can be supported by the transverse arched truss support posts 14 (the transverse arched truss support posts 14 can be reinforced concrete columns, metal round tubes, square tubes or H-shaped steel), so as to reduce the load transmission span of the transverse arched truss 1 and the arched truss 2 with the horizontal section, and reduce the cross section of the rod members. When the embodiment is applied to the outer space celestial sphere, if the internal standard atmospheric pressure is greater than the outer celestial sphere atmospheric pressure, the metal cable 11 is adopted to tie the cross-center and 1/8 circumferential nodes of the transverse arched truss 1 and the arched truss 2 with the horizontal section so as to transmit the pulling force generated by the difference of the internal standard atmospheric pressure minus the outer celestial sphere atmospheric pressure.
The trusses (including the transverse arched truss 1 and the arched truss 2 with the horizontal section) are installed on the column 15 at both ends, and the lower ends of the transverse arched truss support pole columns 14 or the metal cables 11 are installed on the column 15. When the column 15 and the airtight wall 12 are located in the outer space, if concrete structures are adopted, a prestressed steel cable can be adopted to apply vertical prestress so as to reduce structural cracks (which are equivalent to cantilever beams or cantilever walls) caused by the difference between the internal pressure and the external pressure; the girder or the truss girder 10 is used for connecting the top ends of the columns 15, a plurality of airtight cabins can be built at the lower part of the girder or the truss girder 10 (the air pressure is prevented from being sharply reduced due to cracks or holes to endanger the safety of the whole building), and green plants can be planted at the upper part of the girder or the truss girder 10, and rockery and garden are arranged for space farmers or residents to play.
When the sealing skin (or waterproof board) 5 is applied to the earth, the sealing skin (or waterproof board) can be made of glass, rubber, plastics, metal, alloy or synthetic high-strength inorganic non-metallic materials, and when the sealing skin (or waterproof board) is applied to other outer space stars, in order to reduce cosmic rays or harmful rays, the sealing skin (or waterproof board) can be made of metal, high polymer materials or materials which can selectively transmit light according to wavelength and absorb cosmic rays.
As shown in fig. 4 and 6, the upper nodes of the ends of the arc net frame 4 and the spherical net frame 7 are installed at the nodes of the upper chords 21 of the arched girders 1 and the arched girders 2 with the horizontal section, and the lower nodes thereof are installed at the crossing nodes of the vertical crossing web members 24 (nodes in the middle of the vertical crossing web members 24) of the horizontal arched girders 1 and the arched girders 2 with the horizontal section.
The embodiment can be applied to large indoor stadiums, high-speed railway stations or airports, and can also be applied to other closed breeding bases of outer space stars.
The invention can also form a three-dimensional truss structure variant which is integrally deformed in the vertical and horizontal directions and has the functions of bearing vertical load and bidirectional horizontal action by a plurality of longitudinal and transverse arched trusses 2 with horizontal sections (only consisting of the arched trusses 2 with the horizontal sections), and at the moment, a flat plate net rack at the top is added besides an arc net rack and a spherical net rack.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (7)
1. The utility model provides a large-span post/cable purlin net structure, includes the arch truss, its characterized in that: the arched trusses comprise a plurality of transverse arched trusses which are longitudinally and transversely crossed and an arched truss which is longitudinally provided with a horizontal section, wherein the transverse arched trusses and the arched truss which is longitudinally provided with the horizontal section are crossed on a horizontal plane at the same height and form a whole through integrated nodes to form a three-dimensional truss structure which integrally bears vertical load and bidirectional horizontal load in the vertical and horizontal directions;
an arc-shaped net rack is arranged in an area surrounded by horizontal sections of the plurality of transverse arch-shaped trusses and the arch-shaped truss with the horizontal section, a sealing skin or a waterproof plate is arranged on each node outside the arc-shaped net rack, a spherical net rack is arranged in an area surrounded by the transverse arch-shaped truss and the arch-shaped section at the tail end of the arch-shaped truss with the horizontal section, and a sealing skin or a waterproof plate is arranged on each node outside the spherical net rack;
the transverse arched truss and the arched truss with the horizontal section are composed of an upper chord, a lower chord, a horizontal web member, a vertical cross web member, an inclined plane horizontal pull rod, an inclined plane cross web member, a horizontal cross web member, a vertical web member and a connecting plate;
the integrated nodes have similar structural forms in the horizontal plane direction and the vertical direction and are composed of longitudinal or transverse upper chords, lower chords, horizontal cross web members, vertical cross web members and vertical web members; in the horizontal plane, an upper chord and a lower chord of the arched truss with the horizontal section are fixed on the upper chord and the lower chord of the transverse arched truss, and a horizontal cross web member is arranged in a rectangle formed by the chords so as to keep the structure stable; in the vertical plane, vertical cross web members are arranged in a rectangular space formed by the upper chord member, the lower chord member and the adjacent vertical web members to keep a triangular stable structure;
the upper side nodes of the end parts of the arc-shaped net rack and the spherical net rack are arranged on the nodes of the transverse arch truss and the upper chord of the arch truss with the horizontal section, and are connected through the spherical nodes on the cross-shaped support; the lower side nodes of the horizontal arched truss are arranged on the vertical crossed web members with the horizontal arched truss, and are connected through spherical nodes on the cross-shaped support, and the vertical crossed web members, the inclined plane crossed web members on the inclined plane and the inclined plane horizontal pull rod can play a role in transferring the load of the net rack nodes.
2. The large span column/cable truss network structure of claim 1, wherein: the two upper chords are vertically connected by a horizontal web member at 90 degrees, the upper chords and the lower chords on the same side are vertically connected by vertical web members at 90 degrees, and two vertical cross web members are connected with two diagonal nodes to form a stable triangular structure in a rectangle formed by the two adjacent vertical web members, the upper chords and the lower chords; two horizontal web members adjacent to each other are connected with two diagonal nodes by two horizontal cross web members in a rectangle formed by the upper chord member or the lower chord member to form a stable triangular structure; the inclined plane horizontal pull rod and the inclined plane cross web members are positioned in an inclined plane formed by the vertical cross web members on the two sides, the inclined plane horizontal pull rod is connected with the cross points of the vertical cross web members on the two sides in a pulling mode, one end of each inclined plane cross web member is connected with the cross point of the vertical cross web member in a pulling mode, and the other end of each inclined plane cross web member is connected with the connecting node of the upper chord member or the lower chord member and the vertical web members in a pulling mode.
3. The large span column/cable truss network structure of claim 1, wherein: the integrated node is made of circular high-strength metal pipes through equal-strength welding, the periphery of the integrated node is reinforced through equal-strength welding of triangular reinforcing ribs, and the integrated node is connected with the transverse arch truss and the arch truss with the horizontal section through flanges.
4. The large span column/cable truss network structure of claim 1, wherein: when the internal and external atmospheric pressures are consistent, the nodes in the transverse arched truss span are supported by adopting transverse arched truss support rods, so that the load transfer span of the transverse arched truss and the arched truss with the horizontal section is reduced; the transverse arched truss support rod column is made of one of a reinforced concrete column, a metal round pipe, a square pipe or H-shaped steel.
5. The large span column/cable truss network structure of claim 1, wherein: when the internal atmospheric pressure is far greater than the external atmospheric pressure, the cross-middle and 1/8 circumferential nodes of the transverse arched trusses and the arched trusses with the horizontal sections are connected by metal cables so as to transmit the pulling force generated by subtracting the air pressure difference between the rarefied air pressure of the outer star ball and the self weight of the structure from the internal standard atmospheric pressure.
6. The large span column/cable truss network structure of claim 1, wherein: the sealing skin or the waterproof plate is made of one of glass, rubber, plastics, metal, alloy or synthetic high-strength inorganic non-metallic materials; the sealing skin or the waterproof board is made of materials capable of absorbing ultraviolet rays and cosmic rays so as to isolate the incidence of the ultraviolet rays or the cosmic rays; or the light-transmitting material is made of light-transmitting materials selectively according to the wavelength so as to adjust the brightness and the spectrum range of the sidereal light.
7. The large span column/cable truss network structure of claim 1, wherein: the three-dimensional truss structure is characterized in that a vertical and horizontal three-dimensional truss structure which is integrally deformed in the vertical and horizontal directions and has vertical load bearing and bidirectional horizontal action is formed by a plurality of longitudinal and transverse arched trusses with horizontal sections.
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Cited By (1)
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| CN115929075A (en) * | 2023-01-06 | 2023-04-07 | 中建八局第二建设有限公司 | Upper bearing type steel net rack reinforcing system |
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| CN115059179B (en) | 2023-11-24 |
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