CN210067018U - Irregular honeycomb space grid box type structure - Google Patents
Irregular honeycomb space grid box type structure Download PDFInfo
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- CN210067018U CN210067018U CN201822114517.XU CN201822114517U CN210067018U CN 210067018 U CN210067018 U CN 210067018U CN 201822114517 U CN201822114517 U CN 201822114517U CN 210067018 U CN210067018 U CN 210067018U
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Abstract
The utility model discloses an irregular cellular space grid box type structure, which reduces the column distance and increases the beam in the concrete large column grid frame, changes the large frame grid formed by the frame column and the frame beam into a plurality of small frame grids and becomes a concrete grid type frame; the concrete grid type frames on six sides of the regular hexagonal plane enclose a concrete grid type frame barrel, and the concrete grid type frame barrel and the large-span regular hexagonal concrete irregular cellular open-web sandwich plate floor form a multi-layer large-span regular hexagonal concrete irregular cellular space grid box type structure.
Description
Technical Field
The invention relates to a novel space grid box type structure system consisting of a multilayer large-span regular hexagonal planar concrete irregular honeycomb open-web grid floor system and a regular hexagonal concrete grid type frame barrel, and belongs to the technical field of building structures.
Background
In the current stage of building engineering, buildings such as large-span industrial factory buildings, gymnasiums and halls become inevitable forms meeting various production requirements of society, but the traditional plane structure cannot meet the construction requirements of such large-space buildings, so that the space grid structure is widely applied to the field of modern building engineering from the beginning. The space grid structure has the characteristics of reasonable stress, high rigidity, light weight, various structural forms, low manufacturing cost and the like in practical application, and particularly, the application range of the space grid structure in modern buildings is continuously expanded due to low steel consumption.
The large-span regular hexagon irregular honeycomb space grid box type structure belongs to a novel structure system of a space three-dimensional force system, has good technical and economic indexes, can flexibly meet the requirements of various building plane sizes, is suitable for floor systems of multi-layer (2-4 layers) large-span (18-40 m) regular hexagon plane public and industrial buildings, can save land and promote ecological civilized construction, and accords with the building policy of 'applicability, economy, greenness and attractiveness'. The new system has been disclosed in the following patents filed by the applicant:
the invention discloses a multilayer large-span irregular I-shaped concrete space grid box structure and a manufacturing method thereof, wherein the application number is 201710844388.7, the invention discloses a concrete frame structure is a three-layer large-span irregular I-shaped concrete space grid box structure, and the manufacturing method comprises the following steps: the prefabricated units of the concrete grid type frame structure are prefabricated in a manufactured factory, the prefabricated members are installed layer by layer in a splicing mode, the prefabricated units of the first layer of the concrete grid type frame structure are installed firstly, then the irregular I-shaped concrete open-web sandwich plate floor system is installed, and the concrete grid type frame structure and the irregular I-shaped concrete open-web sandwich plate floor system are spliced and cast on site.
The floor is of a hollow grid structure, and if the peripheral support of the floor adopts a conventional concrete large column net frame structure, the lateral stiffness of the integral structure can hardly meet the specification requirement.
The invention content is as follows:
the invention aims to improve the lateral stiffness of the structure, and provides a large-span hexagonal irregular honeycomb space grid box type structure and a manufacturing method thereof; the technical scheme of the invention is that a method for reducing the column distance and increasing the cross beams in a concrete large column net frame is adopted, namely the concrete large column net frame is encrypted, a large frame grid formed by frame columns and frame beams is changed into a plurality of small frame grids to form a concrete grid type frame, the concrete grid type frames on six sides of a regular hexagon plane enclose a concrete grid type frame cylinder, and the concrete grid type frame cylinder and a large-span regular hexagon concrete irregular cellular empty-web sandwich plate (empty-web grid) floor form a multi-layer large-span regular hexagon concrete irregular cellular space grid box type structure.
Wherein, the large-span regular hexagon concrete irregular honeycomb open web sandwich plate floor is rigidly connected with the concrete grid type frame at six sides of the plane to form a multilayer large-span regular hexagon concrete irregular honeycomb space grid box type structure.
Furthermore, in the large-span regular hexagon concrete irregular honeycomb open-web sandwich plate floor system, the supporting points of the frame columns are arranged at the corner points of the regular hexagon planes, the supporting points of the frame columns are also arranged at the intersection points of the grid beams on the six sides of the planes, the nodes are rigid nodes, and the included angles between the grid beams and the edge beams at the nodes are 30 degrees.
Furthermore, in the multilayer large-span regular hexagonal concrete irregular honeycomb space grid box type structure, the vertical grid type frames on the six sides of the plane are arranged in the same way, the positions of the supporting points on the six sides are the same, and the symmetrical relation is the same as that of a regular hexagonal concrete irregular honeycomb open-web sandwich plate floor.
Furthermore, the peripheral frame of the regular-hexagon concrete irregular honeycomb space grid box type structure is an encrypted concrete frame, compared with the conventional concrete frame, in the same frame grid, the pillars are denser, the beams are more, the formed grids are increased in multiples, the internal force distribution is more uniform, the lateral stiffness is obviously improved, the ductility and hysteretic performance are better, and the anti-seismic performance is better.
Furthermore, the horizontal structure of the multilayer large-span regular hexagon concrete irregular honeycomb space grid box type structure is a concrete irregular honeycomb hollow sandwich plate floor system, the plane size of the floor system and the grid size of the floor system are not restricted with each other, and the building plane can be determined according to the building function requirement to obtain the optimal effect.
Furthermore, the horizontal structure of the multilayer large-span regular hexagon concrete irregular honeycomb space grid box type structure is a concrete irregular honeycomb open-web sandwich plate floor system, upper rib grids and lower rib grids of the floor system correspond to each other one by one and are all hexagonal, rod pieces intersected with upper and lower nodes are few, the node force transmission is clear, the structure is simple, and the construction is convenient.
S1, manufacturing the regular hexagon concrete irregular honeycomb open web floor: determining the plane size of a floor according to the building requirements, and determining the size of a regular hexagonal grid according to the grid construction requirements of the hollow girders; arranging a regular hexagonal grid of planar off-diagonal regions; arranging equiangular inequilateral hexagonal grids of a plane diagonal region; arranging a central grid of the floor; pouring concrete of the lower rib layer and the shear key, then integrally pouring concrete of the upper rib layer containing the surface slab for the second time, and curing and forming;
s2, manufacturing a peripheral coagulation grid type frame: concrete frame columns are arranged at the intersections of six corners of a hexagonal plane and peripheral grid beams, concrete frame beams are arranged at floors, window lintels and windowsills to form a grid type frame, the concrete grid type frames at six sides of the plane enclose a concrete frame barrel, and the concrete frame barrel is rigidly connected with a multi-layer concrete irregular honeycomb open-web sandwich plate floor to form a multi-layer large-span regular hexagonal concrete irregular honeycomb space grid box type structure.
Description of the drawings:
FIG. 1: the prestressed concrete frame structure layout diagram of the multi-layer large-span regular hexagon plane is characterized in that 4 prestressed concrete frame beams are arranged along the span direction of the regular hexagon plane, and concrete secondary beams are arranged in the direction vertical to the prestressed concrete frame beams;
FIG. 2 is a drawing: the arrangement diagram of two concrete frames supporting the prestressed concrete frame beam is that the frame column distance is 7000mm, the frame beam is arranged at the floor, and each frame forms 9 grids;
FIG. 3: the layout of four-side concrete frames for supporting the concrete secondary beams is shown, the frame column distance is 10500mm, the frame beams are arranged at the floors, and each side frame forms 6 grids;
FIG. 4 is a drawing: the grid layout of the lower ribs of the floor with the multilayer large-span regular hexagonal concrete irregular honeycomb space grid box type structure can be seen, and the components connecting the lower ribs and the upper ribs at the joints of the hollow beams are three-fork shear keys. In the project, the lower rib grid form mainly comprises regular hexagonal grids, equiangular unequal-sided hexagonal grids and 1 larger regular hexagonal grid in the center of the plate. The floor plane with the same size and the same area as the floor plane with the traditional structural scheme can be obtained by adopting the new structural system, and the building requirements are completely met. And arranging column supports at the intersection of the plane corner points and the plane peripheral grids.
FIG. 5: the upper rib grid form in this project mainly includes regular hexagon grid, equiangular unequal hexagonal grid and 6 regular triangle grids in the center of the plate, the grid size is shown in the figure.
FIG. 6: the schematic section view of the irregular honeycomb hollow floor of concrete, i.e. the section view A-A in figure 4, firstly pours the lower rib layer and the shear bond concrete, pours the upper rib layer (including the surface plate) concrete for the second time, and cures to obtain the floor structure of the irregular honeycomb space grid box type concrete structure. The labels in fig. 6 are: 1-surface layer thin plate, 2-upper rib, 3-shear key and 4-lower rib.
FIG. 7: the layout of the concrete grid type frame around the irregular cellular space grid box structure of the multi-layer large-span regular hexagon concrete is calculated according to the actual size of the embodiment, the distance between the end frame columns is 1840mm, the distance between the middle frame columns is 3464mm, the frame beams are arranged at the floor, the window lintel and the windowsill, so that the grid type frame forms 63 grids, and the concrete grid type frame arrangement at six sides of the regular hexagon plane is completely symmetrical.
The specific implementation mode is as follows:
the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and examples.
The indoor sports center with a regular hexagon plane shown in figure 1 has three layers, the length of the diagonal line is 42m determined by the building, namely the side length of the plane is 21m, and the area of each floor is 1146m2Total area of 3438m2. The first floor has the building function of a basketball hall, and the floor height is 9.5 meters; the second layer is a table tennis stadium and is 6.5 meters high; the third layer is a singing and dancing hall and a gymnasium, and the height of the layer is 6.5 meters; the total height of the building is 9.5m +2 x 6.5 m-22.5 m < 24m, belonging to a multi-layer large-span building. The traditional structural design method is a prestressed concrete frame structure, the structural plane is arranged as shown in fig. 1, the peripheral concrete frame column nets are arranged as shown in fig. 2 and 3, 2 side frames perpendicular to a main beam are respectively provided with 3 × 3-9 grids, and the other 4 side frames are respectively provided with 2 × 3-6 grids. The grid size of the edge frame is shown in fig. 2 and 3. The traditional structural scheme has the following defects: first, first layer net height h19.5-2.5-0.5 m-6.5 m, net height h of two and three layers2＝h36.5m-2.5m-0.5 m-3.5 m, and the net height of each layer can not meet the requirement according to the net height requirement of sports. Secondly, because of the large load area of post, the cross-sectional dimension of post also can be great, forms "fat roof beam fat post", and the dead weight is big, and engineering cost is high. Thirdly, the concrete large column net frame structure has small lateral stiffness and is horizontalThe horizontal displacement generated under the action of load is large, and the standard requirement is difficult to meet. Aiming at the problems, a multilayer large-span regular hexagon concrete irregular honeycomb space grid box type structure is provided, a floor planar structure is arranged according to the patented large-span regular hexagon concrete irregular honeycomb open-web sandwich plate, the floor planar size is determined according to the building requirements, the side length of a regular hexagon grid in a non-diagonal area is 2000mm according to the structural requirements of open-web beam grids, the grid arrangement is carried out according to the method in the regular hexagon concrete irregular honeycomb open-web sandwich plate, and a floor lower rib grid arrangement diagram is obtained and is shown in figure 4, wherein the grid forms mainly comprise regular hexagon grids and equiangular unequal hexagon grids. It can be known from the figure that the floor plane which is the same as the traditional prestressed frame structure can be obtained by adopting the concrete irregular honeycomb open-web sandwich plate, and the floor plane completely meets the building requirements. The upper rib grids of the concrete irregular honeycomb-shaped hollow sandwich panel are arranged as shown in figure 5, the grid form mainly comprises regular hexagonal grids, equiangular scalene regular hexagonal grids and triangular grids, and the grid size is shown in figure 5. During manufacturing, the lower rib layer and the shear key concrete are poured firstly, then the upper rib layer (including the surface layer plate) concrete is poured integrally for the second time, and the regular hexagon concrete irregular hollow sandwich plate floor is formed through maintenance, as shown in figure 6. The height H of the concrete hollow sandwich plate floor is generally (1/20-1/25) L, the height of the concrete irregular honeycomb hollow sandwich plate floor in the project is 1700mm, and the hollow part between the upper rib and the lower rib of the floor can pass through an air conditioning pipeline, so that the height of equipment layers is saved, the net height of each layer is increased by 1.3m, and the building requirements are met.
The periphery adopts concrete grid formula frame (fig. 7), concrete grid formula frame sets up the frame post in six angles on hexagonal plane and peripheral net roof beam intersection, in floor department, window lintel department and windowsill department set up the frame roof beam, formed 7 x 9 ═ 63 grids, the grid number is (7 ~ 10) times of peripheral frame grid number in traditional structure, vertical supporting structure grid number increases several times, make structure lateral rigidity show the improvement, and internal force distributes more evenly, ductility and hysteretic performance also obtain effectively improving, the problem of traditional structure has been solved. The concrete irregular honeycomb hollow sandwich plate and the peripheral concrete grid type frame are combined into a concrete irregular honeycomb space grid box type structure, and the concrete irregular honeycomb hollow sandwich plate is used for public and industrial buildings with a plurality of layers of large-span regular hexagonal planes and accords with the building policy of applicability, economy, green and beauty.
Example 1:
the multi-layer large-span regular hexagon concrete irregular honeycomb space grid box type structure is formed by rigidly connecting a multi-layer large-span regular hexagon planar concrete irregular honeycomb open-web sandwich plate floor system (patented) and a peripherally supported concrete grid type frame, the existing method steps can be adopted when the irregular honeycomb open-web sandwich plate floor system is manufactured, ① determines the plane size (the side length of a regular hexagon plane) of the floor system according to the building requirements, meanwhile, the size of the regular hexagon grid (about 2000 mm) is determined according to the requirements of the open-web beam grid structure, ② arranges regular hexagon grids in a plane non-diagonal area, ③ arranges equiangular non-equilateral hexagon grids in a plane diagonal area, ④ arranges floor system central grids (the lower rib grid is a regular hexagon and the upper rib grid is a regular hexagon or a regular triangle), the finally obtained grids mainly comprise 60 regular hexagon grids (the lower rib layer and the upper rib layer in the non-diagonal area), 30 equiangular hexagon grids (the lower rib layer and the upper rib box type grid layer in the diagonal area), and 1 larger regular hexagon grid (the central lower rib layer and the upper rib box type grid of the concrete open-side grid, and the concrete slab floor system is firstly poured, and then the concrete open-web slab is obtained.
When the peripheral concrete grid type frame is manufactured, concrete frame columns are arranged at six corners of a hexagonal plane and at the intersection of peripheral grid beams, concrete frame beams are arranged at floors, window lintels and windowsills, a concrete grid type frame with 7 multiplied by 9 which is 63 grids is formed, the concrete grid type frame at six sides of the plane encloses a concrete frame cylinder, and the concrete frame cylinder is rigidly connected with a plurality of layers of concrete irregular honeycomb hollow sandwich plates, so that the multilayer large-span regular hexagonal concrete irregular honeycomb space grid box type structure is formed. The new structure can better meet the requirement of the plane size of a building, avoids 'fat beam columns', has large lateral stiffness, uniform internal force distribution and effectively improved ductility and hysteretic performance, and is an excellent structural system in public and industrial buildings with multi-layer large-span regular hexagon planes.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (5)
1. An irregular honeycomb space grid box type structure is characterized in that: the column distance is reduced and the cross beams are increased in the concrete large column net frame, and a large frame grid formed by frame columns and frame beams is changed into a plurality of small frame grids to form a concrete grid type frame; the concrete grid type frames on six sides of the regular hexagonal plane enclose a concrete grid type frame barrel, and the concrete grid type frame barrel and the large-span regular hexagonal concrete irregular cellular open-web sandwich plate floor form a multi-layer large-span regular hexagonal concrete irregular cellular space grid box type structure.
2. An irregular cellular space lattice box structure according to claim 1, characterized in that: the side length of the regular hexagon plane is determined according to the building requirement and is not limited by the size of the grid, the supporting point of the frame column is arranged at the corner point of the plane, the supporting point of the frame column is also arranged at the intersection point of the grid beams on the six sides of the plane, the node is a rigid node, and the included angle between the grid beam at the node and the edge beam is 30 degrees.
3. An irregular cellular space lattice box structure according to claim 1, characterized in that: the vertical grid type frames on the six sides of the plane are arranged the same, and the positions of the supporting points on the six sides are the same.
4. An irregular cellular space lattice box structure according to claim 1, characterized in that: the perimeter frame of the space grid box structure is an encrypted concrete frame.
5. An irregular cellular space lattice box structure according to claim 1, characterized in that: the horizontal structure of the space grid box type structure is a concrete irregular honeycomb open-web sandwich plate floor structure, the building side length and the grid size have no common divisor, and the upper rib grids and the lower rib grids are both hexagons and correspond up and down.
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