CN103821227A - Semispherical roof panel reticulated shell structure with vertical rod supporting for quick assembly - Google Patents
Semispherical roof panel reticulated shell structure with vertical rod supporting for quick assembly Download PDFInfo
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- CN103821227A CN103821227A CN201410073441.4A CN201410073441A CN103821227A CN 103821227 A CN103821227 A CN 103821227A CN 201410073441 A CN201410073441 A CN 201410073441A CN 103821227 A CN103821227 A CN 103821227A
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Abstract
The invention relates to a semispherical roof panel reticulated shell structure with vertical rod supporting for quick assembly. The structure consists of a reticulated shell body, a base node seat and a roof panel, wherein the reticulated shell body adopts an icosidodecahedron, the icosidodecahedron is used as a foundation and is obtained through topology mapping conversion, and the reticulated shell body consists of node seats and movable joint connecting rods. The quick and convenient installation is realized through the thread connecting method. The reticulated shell body and the base node seat are connected through vertical connecting rods, an anchoring hole plate is arranged in the outer normal direction of a grounding node joint of each vertical rod, the semispherical reticulated shell is fixedly arranged on a base beam and a ground foundation by positioning anchor rods through anchoring holes, and the performance of resisting strong wind and snowstorm is improved. The span of the semispherical roof panel reticulated shell structure can be adjusted by steps, and the installation and erection of the structure on site can be started from the rods vertical to the ground, and are sequentially and upwards connected, so the construction is very convenient and quick. The structure can be used for large-span exhibition gypsums, equipment and facility storage warehouses, relief medical care centers and material centers which require quick construction.
Description
Technical field
The present invention relates to a kind of spherical polyhedron single-layer lattice shell particular design method based on topology, geometry of space and system of bars structural mechanics, especially relate to and a kind ofly there is vertical member and support the hemispherical refractory slab latticed shell structure that can assemble fast, belong to technical field of structural engineering.
Background technology
The spherical reticulated shells structure construction method that has obtained at present extensive use is proposed by Israel scholar Hanaor, and its construction process has two kinds: a kind of is the longitude and latitude collimation method (Fig. 1) with quadrangle configuration; Another kind is to have Geodesic Projection methods (Fig. 2) triangle configuration, take 20 bodies as theoretical foundation.Wherein, Hanaor Geodesic Projection method only limits to use (Fig. 3) in the welding of triangle configuration or riveted joint latticed shell structure, is difficult to meet the requirement of assembling fast of wide span single layer sphere net case.
The structure that adopts above-mentioned two kinds of methods to build up is widely applied, but designing and calculating is complicated, member kind is many, there is no the upright rod member perpendicular to ground, cause in work progress, being difficult to convenient installation, make Structure Network shell assembling process numerous and diverse, and member in the Single Layer Sphere Grids shell structure of Hanaor all adopts welding procedure to connect, construction period is very long, and Site Welding quality is also difficult to guarantee.
For addressing the above problem, the present invention proposes a kind ofly to have vertical member and support the hemispherical refractory slab latticed shell structure (Fig. 4) that can assemble fast.The construction process of this hemispherical refractory slab latticed shell structure is from topology and space geometry basic theory, take 32 bodies as Foundation plane primitive, and carry out regular hexagonal cell segmentation, select specifiable lattice subdivision parameter, carry out Topological Mapping conversion through grid node to sphere, obtain the individual layer hemispherical net shell with vertical member feature on the equatorial plane.
Summary of the invention
The present invention proposes a kind ofly has vertical member and supports the hemispherical refractory slab latticed shell structure that can assemble fast, aim to provide a kind of have certain span and hemispherical refractory slab latticed shell structure quick and easy for installation, can be used as rapid build large span exhibition guild hall, facilities storage vault, disaster relief medical centre and goods and materials center and use.
The present invention proposes a kind ofly has vertical member and supports the hemispherical refractory slab latticed shell structure that can assemble fast, it is characterized in that, this hemispherical refractory slab latticed shell structure contains: hemispherical main body net shell, substrate node seat, movable joint connecting rod, refractory slab; Described hemispherical main body net shell is made up of substrate node seat and movable joint connecting rod two type components, and employing is threaded; Described hemispherical main body net shell is take 32 bodies as Foundation plane primitive, and carries out regular hexagonal cell segmentation, selects specifiable lattice subdivision parameter, carries out Topological Mapping conversion obtain through grid node to sphere; Described movable joint connecting rod adopts cold rolling aluminum or aluminum alloy pipe to process; Described various substrate node seat adopts the precision-investment casting of high-carbon steel material to process, and carries out zinc-plated antirust.
In above-mentioned hemispherical refractory slab latticed shell structure, described each node seat is connected with three rod members, net shell substrate node seat, and vertically upward, two other joint points to bottom girder polygon string of a musical instrument direction on net shell horizontal plane to a knock-off joint; In straight-bar ground nodes joint exterior normal direction, be provided with anchor hole plate, location anchor pole is securely fixed in half net shell on Ji Liang and basis, ground by anchor hole, has improved the performance of the anti-high wind severe snow of hemispherical net shell.
In above-mentioned hemispherical refractory slab latticed shell structure, in the upper design structure of described hemispherical net shell node, there is the annular cushion cap face that supports refractory slab, refractory slab angle surface is locked on annular cushion cap face by gland above, still keeps stable bearing overall structure under complicated loads.
Advantage of the present invention mainly contains: (1) is using node joint and straight-bar rod member two base parts as the component that form net shell unit, adopt the convenient, flexible replacement welding procedure that is threaded, precision is high, and it is convenient rapidly to install, and can significantly improve construction operation speed; (2) adopt the special ground nodes structure of the net shell substrate providing and crab-bolt earthing method firm stable, improved the anti-high wind severe snow of hemispherical net shell performance; (3) on-the-spot structure installs that set up can be from perpendicular to the rod member of ground, and upwards connection in turn, makes construction very convenient fast; (4) the method according to this invention is chosen 42 bodies of polygon configuration, 162 bodies, 362 body structures etc., can construct wide span single layer hemispherical refractory slab net shell series; (5) span can classification regulate variation, and node seat and connecting rod kind are few, are convenient to install.
Accompanying drawing explanation
Fig. 1 is that longitude and latitude collimation method generates hemispherical net shell, 1---rib, and 2---ring;
Fig. 2 is that 20 body triangle configuration Geodesic Projection methods generate spherical reticulated shells;
Fig. 3 is triangle configuration Geodesic Projection method spherical reticulated shells Toronto conference and exhibition center (Canada);
Fig. 4 is three-dimensional model diagram of the present invention;
Fig. 5 is 42 body plane topology primitives that the present invention sets up;
Fig. 6 is 42 body spherical reticulated shells nodes and configuration in the present invention;
Fig. 7 is Zhong42Mian Ti tripleplane's sterogram incision of the present invention plan-position, 3---and the equatorial plane;
Fig. 8 is 162 body topology segmentation plane primitives that the present invention sets up;
Fig. 9 is 162 body node types in the present invention;
Figure 10 is 162 body hexagonal configuration in the present invention;
Figure 11 is three projection sterogram incision plan-positions of 162 bodies in the present invention, 4---and the equatorial plane;
Figure 12 is 362 body segmentation flat units in the present invention;
Figure 13 is 7 node types of 362 bodies in the present invention;
Figure 14 is 66 limit shape configurations of 362 bodies in the present invention;
Figure 15-1 and 15-2 are the master nodes seat structure of 42 bodies, 162 body hemispherical refractory slab net shells in the present invention, 5---and fastening refractory slab screw, 6---refractory slab cushion cap face, 7---external screw thread linkage connector, 8---hold and hang chassis;
Figure 16-1 and 16-2 are the substrate node seat structure of 42 bodies, 162 body hemispherical refractory slab net shells in the present invention;
Figure 17-1 is that in the present invention, 42 bodies, 162 body hemispherical refractory slab net shell node seat straight-bars are connected tripleplane with 17-2;
Figure 18, Figure 19 are that in the present invention, 42 bodies, 162 body hemispherical refractory slab net shell node rod members connect structure and process Installation, 9---trident node seat, and 10---articulated joint back-up ring, 11---articulated joint nut, 12---connecting rod.
The specific embodiment
Below in conjunction with accompanying drawing 5～18, describe structure of the present invention and mounting method thereof in detail.
Have vertical member and support the hemispherical refractory slab latticed shell structure that can assemble fast, it is characterized in that, this hemispherical refractory slab latticed shell structure contains: hemispherical main body net shell, substrate node seat, refractory slab.
Described hemispherical main body net shell expands into basis with 32 body variant plane primitive topologys, replace with setting up " node string face angle and " and spherical Map transform method thereof the Geodesic Projection method that Hanaor directly launches with 20 body sphere primitives, choose simultaneously and there is specific primitive side ratio and subdivision parameter, form the specific polyhedron series with upright rod member characteristic, to realize perpendicular to ground rod member individual layer half net shell topology design.
Described hemispherical main body net shell, is to be made up of node seat and articulated connecting rods two type components, adopts threaded connection method, can rapid and convenient realize installation.The node seat of parts design is high-carbon steel, connecting rod is alloy aluminum, make 42 bodies and 162 body half net shell single-piece Weight control in 3kg, construction weight is light, do not need special transportation and crane gear, be specially adapted to field installation exercise, can meet overall net shell and complete within one day the specific (special) requirements of construction and installation.
The specific embodiment of the present invention is divided into two aspects of net shell design and installation.
(1) be constructed perpendicular to the polyhedron of ground rod member
1) 32 body variants of foundation combination, launch on plane primitive in topology, set up side ratio M and are
long limit;
2) topological plane primitive is equated to regular hexagon segmentation, be subdivided into half or whole regular hexagon;
3) for to carry out Topological Mapping conversion to 5 limit shape circumscribed circle neighborhoods, adopt node " string face angle and " method to carry out approximation computation, obtain corresponding string face angle and length of side value;
4) according to specific vertical rod polyhedron accurate Calculation value, provide the entity view after the sphere topological relation mapping transformations such as 42 bodies, 162 bodies and 362 bodies;
5) using each calculated value as to sphere topological transformation result, provide corresponding master nodes seat number of types, rod member species number and substrate polygon parameter, provide hemispherical net shell node structure.
(2) build 42 the upright rod member hemisphere of body net shells
1) set up topological primitive
Choosing 32 body variant plane primitive side ratios is
side ratio is defined as the ratio of the 5 limit shape length of sides and the primitive length of side.On topological plane primitive, have the hexagon of three demifacets, plane primitive has been subdivided into 1.5 regular hexagons, as shown in Figure 5.
2) calculate ball string face angle
3) for setting up primitive plane characteristic point to sphere neighborhood topology transformation calculations method, adopt plane 6 shape geometrical condition chord face angle, limit and equal conditions, set up equation and solve, α=121.5 °, ω=117 °
Three string face angle sums are ∑=351 °
In calculating, use polygon plane condition.
Solve 42 body spherical reticulated shells and there are 2 kinds of node types, a kind of hexagonal configuration and 2 kinds of length of sides, as shown in Figure 6.Build 42 Mian Ti spherical reticulated shells tripleplane sterograms, as shown in Figure 7.
(3) build 162 the upright rod member hemisphere of body net shells
1) set up topological plane primitive
2) choosing 32 body variant plane primitive side ratios is
topological plane primitive is subdivided into 7.5 regular hexagons, as shown in Figure 8.
3) calculate string face angle
4) obtain 7 angle values for trying to achieve plane primitive node to sphere neighborhood mapping topological transformation, setting up equation and solve with string face angle and the condition that equates by 6 limit shape geometrical conditions, be respectively:
α=124.875°，β=117°，λ=123.75°，γ=121.5°，σ=118.125°，ξ=120.375°，ω=119.25°
Three string face angle sums are ∑=357.75 °
Solve node type and have 3,6 limit shape configurations have 3, as shown in Fig. 9,10.Solve the length of side and have 3 kinds, that is:
a
1=a
1，a
2=1.10335a
1，a
3=1.12789a
1
162 body hemispherical Wang Ke tripleplane sterograms, as shown in figure 11.
(4) build 362 the upright rod member hemisphere of body net shells
1) set up topological primitive
Choose 32 body variant plane primitive side ratios
topological plane primitive is subdivided into 17.5 regular hexagons, as shown in figure 12.
2) calculate ball string face angle
For setting up plane primitive to the conversion of sphere neighborhood topology, employing plane 6 limit shape geometrical conditions are set up 12 equation group with string face angle and the condition that equates, solve 12 angles and are:
α=125.5°，β=115.8333°，λ=127.333°，γ=121.6667°，σ=118.6667°，η=119.6667，(ξ=119.6667°)，δ=116°，ρ=121.5°，ω=119.5°，ζ=120.1667°，(ε=119.6667°)
In the solution providing, have three angles identical, actual independent angle variable only has 10
String face angle and be ∑=359 °
Solve node type and have 7 kinds, 6 limit shape configurations have 5 kinds, as shown in Figure 13,14.Solve the length of side and have 5 kinds, that is:
a
1=a
1，a
2=1.1031a
1，a
3=1.1541a
1，a
4=1.2187a
1，a
5=1.2037a
1
(5) upright rod member hemispherical net shell series
Can calculate face of a polyhedron number, node type number, length of side species number and ball string face angle and the value of vertical member hemispherical net shell according to the specific value of 32 body variant primitive side ratio M and Euler's theorem.As shown in table 1.
Table 1 up-and-down rod hemispherical main body net shell characteristic parameter
Note: 1) in the time that the selection standard length of side (being the regular pentagon length of side) is about 1.5m, the rice number of hemispherical net shell span is about the number of up-and-down rod.As utilize 42 bodies, 162 bodies, 362 bodies can build vertical ground rod member number and span is respectively, 10 10 meters, bars across 20 meters,, 20 bar across 30 meters,, 30 bar across.
2) have the spherical reticulated shells series of vertical member, due to the optimization characteristics of computational methods, the variety classes model number of node joint and straight-bar parts is very limited.Building with reference to topology configuration while installing, can realize easily 30 meters of assemblings that are threaded with upper span hemisphere net shell, but more than the tube connector diameter of node seat and rod member gas thread will change into 55mm by stressed designing requirement.
(6) hemispherical net shell node and connecting rod installation steps
Have 42 bodies of vertical ground rod member feature, 162 bodies, its ground nodes structural form is consistent, and only structural parameters have difference, as shown in Figure 15,16.Substrate node seat is cylindrical, the vertical upwards introversion of top nipple 1 or oblique introversion, two of bottoms nipple 2 sensing levels.Its 42,162 horizontal plane angles are respectively 144 °, 162 °, and its value depends on the polygonal number of different spans substrate and changes.Node seat substrate external diameter direction has steel plate with holes, as being connected and fixed use with substrate ring beam and basis.Adopt the precision-investment casting of high-carbon steel material to carry out various node seat processing, and carry out zinc-plated antirust.Adopt cold rolling aluminum or aluminum alloy pipe to carry out movable joint connecting rod processing (GB/T4436-1995).
Substrate node seat and the articulated connecting rods of 42 bodies, 162 body half net shells, be threaded connection configuration location, and its center line forms respectively positive 10 limit shapes and inequilateral 20 limit shapes.Connect collar tie beam as basis take the substrate forming, upwards connect in turn according to hemisphere main body net shell topology design, 42 bodies, 162 three-dimensional half net shells of body of formation connect three-dimensional projection as shown in Figure 17,18.
Claims (3)
1. have vertical member and support the hemispherical refractory slab latticed shell structure that can assemble fast, it is characterized in that, this hemispherical refractory slab latticed shell structure contains: hemispherical main body net shell, substrate node seat, movable joint connecting rod, refractory slab; Described hemispherical main body net shell is made up of substrate node seat and movable joint connecting rod two type components, and employing is threaded; Described hemispherical main body net shell is take 32 bodies as Foundation plane primitive, and carries out regular hexagonal cell segmentation, selects specifiable lattice subdivision parameter, carries out Topological Mapping conversion obtain through grid node to sphere; Described movable joint connecting rod adopts cold rolling aluminum or aluminum alloy pipe to process; Described various substrate node seat adopts the precision-investment casting of high-carbon steel material to process, and carries out zinc-plated antirust.
2. hemispherical refractory slab latticed shell structure according to claim 1, it is characterized in that, described each node seat is connected with three rod members, net shell substrate node seat, vertically upward, two other joint points to bottom girder polygon string of a musical instrument direction on net shell horizontal plane to a knock-off joint; In straight-bar ground nodes joint exterior normal direction, be provided with anchor hole plate, location anchor pole is securely fixed in half net shell on Ji Liang and basis, ground by anchor hole, to improve the performance of the anti-high wind severe snow of hemispherical net shell.
3. hemispherical refractory slab latticed shell structure according to claim 1, it is characterized in that, in the upper design structure of described hemispherical net shell node, there is the annular cushion cap face that supports refractory slab, refractory slab angle surface is locked on annular cushion cap face by gland above, still keeps stable bearing overall structure under complicated loads.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895397A (en) * | 2015-06-30 | 2015-09-09 | 简震 | Multi-rod connection joint and tent thereof |
| CN104953274A (en) * | 2015-04-28 | 2015-09-30 | 周丰峻 | Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome |
| CN106613504A (en) * | 2016-12-13 | 2017-05-10 | 罗逍 | Hemispherical greenhouse |
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| RU2122080C1 (en) * | 1996-12-11 | 1998-11-20 | Александр Сергеевич Шмелев | Polyhedral spheroidal structure |
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| CN104953274A (en) * | 2015-04-28 | 2015-09-30 | 周丰峻 | Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome |
| CN104953274B (en) * | 2015-04-28 | 2017-09-22 | 周丰峻 | The construction method and mounting process of large span pseudorandom metal antenna cover latticed shell structure |
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| CN106613504A (en) * | 2016-12-13 | 2017-05-10 | 罗逍 | Hemispherical greenhouse |
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