Large-span fold line daylighting roof net rack

Abstract

The utility model discloses a large-span fold line daylighting roof net rack which comprises stand columns, ring beams, cylinders and secondary beams. The stand columns are distributed on the building foundation in an annular array mode. The ring beams are horizontally welded to the tops of two adjacent stand columns to form a closed annular frame. The cylinders are vertically arranged, and a plurality of groups of butt-joint clamping grooves are formed in the side surfaces of the cylinders; two ends of the secondary beam are inserted into the butt-joint clamping grooves of the two cylinders at an inclined angle to be fixed; the plurality of groups of cylinders and the secondary beams inserted on the cylinders are combined and then fixedly connected to the ring beam to form a large-span daylighting roof net rack; and the adjacent cylinders are connected through the secondary beams to form broken-line-shaped arrangement. According to the utility model, through the modular structure of the combination of the cylinder and the secondary beam, the traditional arc-bending main beam is thoroughly cancelled, the investment of large arc-bending equipment is avoided, and the secondary processing cost is reduced; unified transportation of standardized components is achieved, and special transportation requirements are reduced; the steel beam can be cut at multiple angles, residual materials can be reutilized, and material loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building daylighting roof technical field, concretely is a kind of large-span fold line daylighting roof net rack. BACKGROUND

[0002] The existing building arc glass daylighting roof and arc metal roof steel net rack structure are welded by steel rectangular tube material, and the main installation mode is to bend the main steel beam and secondary steel beam in bending arc factory according to the radius and arc length marked in design, then transport the bent steel beam material to site, cut and install according to the corresponding arc length.

[0003] The traditional bending arc processing mode of the steel net rack has the following disadvantages:

[0004] 1. The main and secondary steel beams have large cross-sectional size and high steel thickness, and need large bending arc equipment for bending arc processing, which increases the secondary processing cost; at the same time, the steel beam bending arc processing progress is slow, and the cycle is long, which causes the construction period to be extended.

[0005] 2. The length of the main and secondary steel beams is long, and the bending arc style is various, which needs special vehicle transportation, causing the transportation cost to increase; the material type is various, and needs large site to store, which occupies the site construction site.

[0006] 3. The main steel beam is the main force structure keel, and the cross-sectional size is large, and the construction material consumption is large; at the same time, it is not easy to hoist during installation, and auxiliary clamps need to be made, and the construction efficiency is low.

[0007] 4. The bending radius and arc length are fixed, and it is difficult to flexibly adjust to meet the diversified building requirements, and the design freedom is limited. INVENTION CONTENTS

[0008] The utility model aims at providing a large-span fold line daylighting roof net rack without main beam.

[0009] The large-span fold line daylighting roof net rack provided by the utility model comprises a stand column, a ring beam, a cylinder and a secondary beam; the stand columns are arranged in a ring array on a building foundation; the ring beams are horizontally welded on the top of two adjacent stand columns to form a closed ring frame; the cylinders are vertically arranged and have a plurality of groups of butt joint slots on the side surface; the secondary beams are inserted into the butt joint slots of two cylinders at an inclined angle and fixed; a plurality of groups of cylinders and the secondary beams inserted thereon are combined and fixed on the ring beam to form a large-span daylighting roof net rack; adjacent cylinders are connected by the secondary beams to form a fold line arrangement.

[0010] In one embodiment of the above net rack, the stand column is a high-strength rectangular steel column, and the bottom end is welded with a bottom plate with reinforcing ribs.

[0011] In one embodiment of the above net rack, the stand column bottom plate is vertically fixed on the building foundation through embedded bolts.

[0012] In one embodiment of the aforementioned space frame, the ring beam is a long, straight, circular steel beam.

[0013] In one embodiment of the aforementioned space frame, the connection between the ring beam and the column is achieved using full-circumferential fillet welds, forming a continuously extending closed annular load-bearing frame.

[0014] In one embodiment of the aforementioned space frame, the secondary beam is a high-strength rectangular steel beam, with its two ends inserted into the mating slots of two cylinders at an inclined angle and then welded and fixed.

[0015] In one embodiment of the above-mentioned space frame, stiffening plates are provided at the connection nodes between the secondary beams and the columns.

[0016] In one embodiment of the aforementioned space frame, the cylinder is a vertically arranged circular steel column with six sets of docking slots on its side.

[0017] In one embodiment of the aforementioned space frame, the cross-sectional height of the cylinder is greater than the cross-sectional height of the secondary beam.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. By using a modular structure combining columns and secondary beams, the traditional curved main beam is completely eliminated, avoiding the investment in large curved equipment and reducing secondary processing costs; standardized components enable unified transportation, reducing the need for special transportation; steel beams can be cut at multiple angles and the remaining materials can be reused, reducing material waste;

[0020] 2. The modular "rice" shaped small steel frame supports direct on-site cutting and welding, simplifying the processing flow; standard prefabricated components enable rapid hoisting, reducing on-site construction procedures and shortening the overall construction period; the structure with the cylindrical size larger than the secondary beam ensures docking accuracy and reduces installation difficulty. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of a space frame structure according to an embodiment of the present invention.

[0022] Figure 2 for Figure 1 A top view of the connection of the central crossbeam.

[0023] Figure 3 for Figure 1 A top view of the structure of the central cylinder.

[0024] Figure 4 for Figure 3 Axonometric structural diagram of a medium cylinder. Detailed Implementation

[0025] The related technical solutions will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the range protected by the utility model.

[0026] As shown in the drawings, Figure 1 The large-span folded-line daylighting roof net rack disclosed by the embodiment comprises a stand column 1, a ring beam 2, a cylindrical column 3 and a secondary beam 4.

[0027] The stand column 1 is a high-strength rectangular steel column, the bottom end of which is welded with a bottom plate, and a plurality of reinforcing ribs are arranged between the bottom plate and the column body. The stand column bottom plate is vertically fixed to the building foundation through embedded bolts.

[0028] A plurality of stand columns 1 are arranged in a ring array around the periphery of the daylighting roof according to the building requirements, and the spacing between adjacent stand columns is set according to the span requirement.

[0029] As shown in the drawings, Figure 2 The ring beam 2 is a circular long straight steel beam, which is horizontally welded and fixed to the center position of the top end face of two adjacent stand columns 1. All the ring beams are continuously extended along the top of the stand column to form a closed ring stress frame. The connection between the ring beam and the stand column adopts a full-circle fillet weld.

[0030] As shown in the drawings, Figure 3 And Figure 4 The cylindrical column 3 is a vertical circular steel column, the side surface of which is provided with a plurality of groups of butt joint clamping grooves. The cross-sectional height of the cylindrical column is greater than the cross-sectional height of the secondary beam.

[0031] The secondary beam 4 is a high-strength rectangular steel beam, the two ends of which are respectively inserted into the butt joint clamping grooves of two cylindrical columns 3 at a designed inclination angle and are fixed by welding; after welding, a rib plate can be arranged at the joint to reinforce the structure.

[0032] The cylindrical column of the embodiment is provided with six groups of butt joint clamping grooves, and forms a rice-shaped small steel frame group after the secondary beam is installed.

[0033] The large-span folded-line daylighting roof net rack is assembled into shape by the following way:

[0034] 1. A plurality of stand columns are fixed to the building foundation by foundation bolts to form a vertical support system;

[0035] 2. A plurality of ring beams are welded on the top of each stand column to form a horizontal closed ring beam;

[0036] 3. The prefabricated rice-shaped small steel frame group is hoisted above the ring beam, and the small steel frame group can be directly cut and welded on the construction site; the installation angle of the secondary beam is adjusted to realize the folded-line arrangement;

[0037] 4. Finally, a light-transmitting panel is laid on top of the grid structure to form a continuous zigzag-shaped light-transmitting roof surface.

[0038] This implementation method utilizes a specially constructed column and ring beam load-bearing system, combined with modular cylindrical-secondary beam components, to form a zigzag spatial grid without a main beam. The cylindrical column, as the core node component, provides multi-directional connection points for the secondary beams and, through its dimensional advantages, ensures rapid and precise on-site assembly, ultimately meeting the construction requirements for a large-span skylight.

[0039] The advantages of using Benxi steel space frames are:

[0040] 1. By using a modular structure combining columns and secondary beams, the traditional curved main beam is completely eliminated, avoiding the investment in large curved equipment and reducing secondary processing costs; standardized components enable unified transportation, reducing the need for special transportation; steel beams can be cut at multiple angles and the remaining materials can be reused, reducing material waste;

[0041] 2. Modular small steel frame assemblies support direct on-site cutting and welding, simplifying the processing flow; standard prefabricated components enable rapid hoisting, reducing on-site construction procedures and shortening the overall construction period; the structure with cylindrical dimensions larger than secondary beams ensures docking accuracy and reduces installation difficulty.

[0042] 3. The cross-shaped small steel frame group can be spliced ​​at any angle, which can meet the requirements of steel space frame structure with different arc length and radius.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large-span folded-line daylighting roof net rack, characterized in that: It includes columns, ring beams, cylinders and secondary beams; the columns are arranged in a ring array on the building foundation; the ring beams are horizontally welded on the top of two adjacent columns to form a closed ring frame; the cylinders are vertically arranged and have multiple groups of butt joint slots on the side surface; the secondary beams are inserted into the butt joint slots of two cylinders at an inclined angle and fixed; multiple groups of cylinders and the secondary beams inserted thereon are combined and fixed on the ring beams to form a large-span daylighting roof net rack; adjacent cylinders are connected by the secondary beams to form a zigzag arrangement.

2. The long-span folded-line daylighting roof grid of claim 1, wherein: The column is a high-strength rectangular steel column, and the bottom end is welded with a bottom plate with reinforcing ribs.

3. The long-span folded-line daylighting roof grid of claim 2, wherein: The column bottom plate is vertically fixed on the building foundation through embedded bolts.

4. The long-span folded-line daylighting roof grid of claim 1, wherein: The ring beam is a circular long straight steel beam.

5. The long-span folded-line daylighting roof grid according to claim 4, wherein: The connection between the ring beam and the column adopts full circumference angle welding seam to form a continuously extended closed ring stress frame.

6. The large-span folded-line daylighting roof grid of claim 1, wherein: The secondary beam is a high-strength rectangular steel beam, and the two ends are respectively inserted into the butt joint slots of two cylinders at an inclined angle and welded and fixed.

7. The long-span folded-line daylighting roof grid of claim 6, wherein: The connection node between the secondary beam and the cylinder is provided with a rib plate.

8. The large-span folded-line daylighting roof grid of claim 1, wherein: The cylinder is a vertically arranged circular steel column, and six groups of butt joint slots are opened on the side surface.

9. The large-span folded-line daylighting roof grid of claim 1, wherein: The cross-sectional height of the cylinder is greater than the cross-sectional height of the secondary beam.

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