CN106759892B - Welding-free detachable assembly system - Google Patents
Welding-free detachable assembly system Download PDFInfo
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- CN106759892B CN106759892B CN201710018884.7A CN201710018884A CN106759892B CN 106759892 B CN106759892 B CN 106759892B CN 201710018884 A CN201710018884 A CN 201710018884A CN 106759892 B CN106759892 B CN 106759892B
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2448—Connections between open section profiles
Abstract
The invention discloses a welding-free detachable assembly system, which aims at solving the problem that the existing section bar frame wastes materials and labor resources, and provides a welding-free detachable assembly system convenient to mount and dismount, and the welding-free detachable assembly system comprises a lattice column, wherein the lattice column comprises at least two branches and batten strips for connecting the two branches; the branches comprise two cold-formed C-shaped steels or cold-formed channel steels, and the opening directions of the two cold-formed C-shaped steels or cold-formed channel steels are opposite; each batten strip comprises a cold-bending C-shaped steel or a cold-bending channel steel or two cold-bending C-shaped steel or cold-bending channel steel with opposite opening directions; the limbs are connected with the batten strips through the gusset plates, one side of each gusset plate is arranged between the webs of the two cold-formed C-shaped steels or the cold-formed channel steels of the limbs, and the gusset plates are connected with the webs of the two cold-formed C-shaped steels or the cold-formed channel steels of the limbs; and the web plate of the cold-formed C-shaped steel or the cold-formed channel steel of the lacing bar is connected with the other side of the gusset plate. The invention is convenient for installation and disassembly, and saves materials and labor resources.
Description
Technical Field
The invention relates to a welding-free detachable assembly system.
Background
The existing buildings such as factory buildings, warehouses and temporary houses are built by adopting steel structures, and the steel structures are welcomed due to the characteristics of short construction period, high prefabrication degree and convenience for modular construction. The current steel structure method is that hot rolled H-shaped steel, channel steel or angle steel and other profiles are welded to be used as a frame system, and space division is performed on the basis of the frame system. Although the method is more convenient and faster than the traditional building method, the method is limited by the specification of the section bar, and the waste of materials is easily caused. Meanwhile, the existing connection between the sectional materials adopts a welding mode, so that the sectional materials are not easy to detach after the service cycle is finished, flame cutting or other modes are required to be adopted for cutting, a large amount of labor resources are wasted, and the cut sectional materials are difficult to recycle, so that the further waste of materials is caused.
Disclosure of Invention
In order to solve the problems, the invention provides a welding-free detachable assembly system which is convenient to mount and dismount.
In order to achieve the purpose, the welding-free detachable assembling system comprises a lattice column, wherein the lattice column comprises at least two branches and lacing strips used for connecting the two branches;
the branches comprise two cold-formed C-shaped steels or cold-formed channel steels, and the opening directions of the two cold-formed C-shaped steels or cold-formed channel steels are opposite;
the batten strip comprises a cold-bending C-shaped steel or a cold-bending channel steel or two cold-bending C-shaped steel or cold-bending channel steel with opposite opening directions;
the limbs are connected with the batten strips through gusset plates, one side of each gusset plate is arranged between webs of the two cold-formed C-shaped steels or the two cold-formed channel steels of the limbs, and the gusset plates are connected with the webs of the two cold-formed C-shaped steels or the two cold-formed channel steels of the limbs;
and the web plate of the cold-formed C-shaped steel or the cold-formed channel steel of the batten strip is connected with the other side of the gusset plate.
Furthermore, detachable corbels are arranged on the latticed columns, and each detachable corbel comprises a corbel web, a corbel top plate and a U-shaped stiffening plate, wherein the corbel web and the corbel top plate are arranged in the same plane as the node plates;
the bracket web plate comprises a connecting part and a protruding part which are integrally formed, two sides of the connecting part are respectively connected with the two limbs, and the protruding part is arranged on one side of the lattice column;
the U-shaped stiffening plate is arranged between the two limbs, the horizontal part of the U-shaped stiffening plate is contacted with the upper edge of the connecting part of the bracket web,
the bracket top plate comprises an integrally formed L-shaped plate, the vertical section of the L-shaped plate is a connecting part, the horizontal section of the L-shaped plate is a supporting part, the supporting part of the bracket top plate is in contact with the extending part of the bracket web plate, and the connecting part of the bracket top plate, one of the cold-formed C-shaped steel or cold-formed channel steel wing plate of one limb and one of the vertical parts of the U-shaped stiffening plate are connected through bolts; and the other vertical part of the U-shaped stiffening plate is connected with the cold-formed C-shaped steel or the cold-formed channel steel wing plate of the other branch limb through a bolt.
Furthermore, the assembly system also comprises a lattice beam, two ends of which are respectively connected with the two lattice columns; the lattice beam comprises an upper chord branch, a lower chord branch and a lacing strip, wherein two ends of the lacing strip are respectively connected with the upper chord branch and the lower chord branch;
the upper chord branch and the lower chord branch both comprise two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions,
the batten strip comprises cold-formed C-shaped steel or cold-formed channel steel or two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions;
the upper and lower chord branches are connected with the lacing bars through gusset plates.
Furthermore, the lattice column is respectively provided with two support rods corresponding to the upper chord limb and the lower chord limb of the lattice beam, and the two support rods are respectively coaxially arranged with the upper chord limb and the lower chord limb of the lattice beam; the upper supporting rod and the upper chord limb are connected with the limbs on the inner side of the lattice column through gusset plates, and the lower supporting rod and the lower chord limb are connected with the limbs on the inner side of the lattice column through gusset plates.
Furthermore, a combined purline is arranged between two adjacent lattice beams, and comprises an upper chord, a lower chord and a purline web plate;
the upper chord comprises two upper chord angle steels, one wing plate of each upper chord angle steel is parallel to the web plate of the purlin, and the wing plate of each upper chord angle steel parallel to the web plate of the purlin is connected with the web plate of the purlin;
the lower chord comprises two lower chord angle steels, one wing plate of each lower chord angle steel is parallel to the web plate of the purline, and the wing plate of each lower chord angle steel parallel to the web plate of the purline is connected with the web plate of the purline.
Furthermore, the combined purlin also comprises a plurality of pairs of angle steel stiffening ribs vertical to the upper chord and the lower chord;
the two angle steel stiffening ribs of each pair are respectively arranged at two sides of the web plate of the purline, and one wing plate of each angle steel stiffening rib is arranged in parallel with the web plate of the purline;
the middle part of the angle steel stiffening rib is connected with the purline web, and the upper part and the lower part of the angle steel stiffening rib are respectively connected with the upper chord and the lower chord.
Furthermore, the lower chord angle steel of the purline is arranged on the upper chord limb of the lattice beam, and the purline is connected with the upper chord limb of the lattice beam through a purline support;
the purlin strip comprises an L-shaped connecting plate and at least one stiffening plate, and two adjacent sides of the stiffening plate are respectively connected with two wing plates of the L-shaped plate;
the end part of the angle steel at one side of the purlin web plate is arranged at an interval with the end part of the purlin web plate, and the interval is matched with the L-shaped plate; one wing plate of the L-shaped plate is connected with the purlin web and angle steel on the other side of the purlin web, and the other wing plate of the L-shaped plate is connected with the upper chord branch of the lattice beam;
or;
and the lower chord angle steel of the purline is arranged on the upper chord limb of the lattice beam and is connected with the upper chord limb of the lattice column.
Further, the assembly system further comprises a combined secondary beam; the combined secondary beam comprises an upper beam chord, a lower beam chord and a beam web plate;
the beam web is a steel plate; the beam upper chord comprises two hot rolled angle steels respectively arranged at two sides of a beam web plate, and one wing plate of each hot rolled angle steel is connected with the upper part of the beam web plate through a bolt; the beam lower chord comprises two hot rolled angle steels respectively arranged on two sides of a beam web plate, and one wing plate of each hot rolled angle steel is connected with the lower part of the beam web plate through a bolt.
Further, the combined secondary beam is arranged on the bracket, and the beam lower chord of the combined secondary beam is connected with the supporting part of the bracket top plate.
Furthermore, an inclined support is arranged between the lattice column and the lattice beam, the lower end of the inclined support is connected with the limbs on the inner side of the lattice column through a gusset plate, and the upper end of the inclined support is connected with the lower chord limbs of the lattice beam through a gusset plate;
one of the lacing bars of the lattice column and one of the lacing bars of the lattice beam are coaxially arranged.
The structure system can be used for factories, warehouses, simple temporary houses and the like, the steel consumption is small, the section of the component is small, the weight is light, the steel is saved, and the manufacturing cost is low; the transportation and the installation are convenient, the welding is not needed on the site, the construction is convenient and fast, the efficiency is high, and the construction period is short; the modular construction and modular assembly are convenient, and different building monomers can be freely and flexibly built according to the use purpose; the component can be disassembled for reuse, thereby saving resources.
Drawings
FIG. 1 is an overall structural view of embodiment 1 of the solder-free demountable assembly system of the present invention;
FIG. 2 is a schematic structural view of a lattice column of example 1 of the solder-free demountable assembly system of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a partial schematic structural view of a lattice beam of example 2 of the weld-free demountable assembly system of the present invention;
FIG. 6 is a cross-sectional view C-C of FIG. 5;
FIG. 7 is a schematic illustration of the construction of a purlin of example 3 of the weld-free demountable assembly system of the present invention;
FIG. 8 is a schematic structural view of a composite secondary beam of embodiment 4 of the weld-free demountable assembly system of the present invention;
FIG. 9 is a schematic view of the purlin of FIG. 7 with stiffening ribs added thereto;
FIG. 10 is a schematic illustration of the composite sub-beam of FIG. 8 with stiffening ribs added;
FIG. 11 is a comparative table of the amount of steel saved compared to the prior art portal steel frame for example 2 of the weld-free demountable assembly system of the present invention;
FIG. 12 is a graph comparing the amount of steel saved compared to the prior art portal steel frame for example 2 of the weld-free demountable assembly system of the present invention;
FIG. 13 is comparative data of steel usage for example 2 of the weld-free demountable assembly system of the present invention versus existing portal steel frames;
FIG. 14 is a graph comparing the amount of steel used in example 2 of the weld-free demountable assembly system of the present invention with that of a conventional portal frame;
FIG. 15 is a comparison of steel usage for purlins of example 3 of the weld-free demountable assembly system of the present invention versus existing purlins;
FIG. 16 is a graph comparing the amount of steel used for purlins of example 3 of the weld-free demountable assembly system of the present invention to existing purlins;
FIG. 17 is comparative data of steel usage for the composite sub-beam of example 4 of the weld-free disassembled assembly system of the present invention and the existing sub-beam;
FIG. 18 is a graph comparing the amount of steel used for the composite secondary beam of example 4 of the weld-free knockdown assembly of the present invention with that of a conventional secondary beam;
FIG. 19 is a preferred construction of a purlin to lattice beam connection node of the weld-free demountable assembly system of the present invention;
FIG. 20 is a cross-sectional view D-D of FIG. 19;
FIG. 21 is another preferred construction of a purlin to lattice beam connection joint of the weld-free demountable assembly system of the present invention;
FIG. 22 is a cross-sectional view E-E of FIG. 21;
fig. 23 is a preferred embodiment of the connection node of lattice columns and lattice beams of the weld-free demountable assembly system of the present invention.
Detailed Description
The invention is further described in the following with reference to the drawings.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a solder-free demountable assembly system, which includes a lattice column 1, wherein the lattice column 1 includes at least two branches 11 and a batten 12 for connecting the two branches 11;
the branch 11 comprises two cold-formed C-shaped steels or cold-formed channel steels, and the opening directions of the two cold-formed C-shaped steels or cold-formed channel steels are opposite;
the batten strip 12 comprises a cold-formed C-shaped steel or a cold-formed channel steel
The limbs 11 are connected with the batten strips 12 through gusset plates 13, one side of each gusset plate 13 is arranged between webs of the two cold-formed C-shaped steels or the cold-formed channel steels of the limbs 11, and each gusset plate 13 is connected with the webs of the two cold-formed C-shaped steels or the cold-formed channel steels of the limbs 11;
and the web plate of the cold-formed C-shaped steel or cold-formed steel of the lacing bar 12 is connected with the other side of the gusset plate 13.
The lattice column 1 is provided with a detachable bracket 5, and the detachable bracket 5 comprises a bracket web 51, a bracket top plate 53 and a U-shaped stiffening plate 52 which are arranged in the same plane with the node plate 13;
the corbel web 51 comprises a connecting part and a protruding part which are integrally formed, two sides of the connecting part are respectively connected with the two limbs 11, and the protruding part is arranged on one side of the lattice column 1;
the U-shaped stiffening plate 52 is arranged between the two limbs 11, the horizontal part of the U-shaped stiffening plate 52 is contacted with the upper edge of the connecting part of the bracket web 51,
the bracket top plate 53 comprises an integrally formed L-shaped plate, the vertical section of the L-shaped plate is a connecting part, the horizontal section of the L-shaped plate is a supporting part, the supporting part of the bracket top plate 53 is in contact with the extending part of the bracket web 51, and the connecting part of the bracket top plate 53, the cold-formed C-shaped steel or cold-formed channel steel wing plate of one limb 11 and one of the vertical parts of the U-shaped stiffening plate 52 are connected through bolts; the other vertical part of the U-shaped stiffening plate 52 is connected with the cold-formed C-shaped steel or the cold-formed steel channel wing plate of the other limb 11 through bolts.
In the welding-free detachable assembly system in the embodiment, no matter the connection between the limbs 11 and the batten strips 12 or the arrangement of the corbels 5 on the lattice column 1, the bolts can be adopted for connection, welding is not needed on site, after the service cycle is finished, all parts of the lattice column 1 are detached, labor resources are saved, and the detached materials are not damaged and can be recycled, so that the resources are saved.
In addition, the structural system is used for factories, warehouses, simple temporary houses and the like, and because cold-formed sections are adopted for assembly, the structural system can be assembled according to the needs, the limitation of the material specification on the installation process is greatly reduced, the structural system uses less steel, the member section is small, the weight is light, the steel is saved, and the manufacturing cost is low; the transportation and the installation are convenient, the welding is not needed on the site, the construction is convenient and fast, the efficiency is high, and the construction period is short; the modular construction and modular assembly are convenient, and different building monomers can be freely and flexibly built according to the use purpose; the component can be disassembled for reuse, thereby saving resources.
Example 2
On the basis of the above embodiment, as shown in fig. 5-6, the assembly system further includes a lattice beam 2 having two ends respectively connected to the two lattice columns 1; the lattice beam 2 comprises an upper chord limb 21, a lower chord limb and a lacing strip 22, wherein two ends of the lacing strip 22 are respectively connected with the upper chord limb 21 and the lower chord limb;
the upper chord limb 21 and the lower chord limb comprise two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions,
the lacing bar 22 comprises a cold-formed C-shaped steel or a cold-formed channel steel or two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions;
the upper and lower chord branches are connected with the lacing bars 22 through gusset plates 23.
In the embodiment, the beam is also in a lattice structure, and the beam is also assembled by cold-bending sectional materials, so that the material and labor resources can be further saved.
In this embodiment, the door type truss is formed by using the 2 columns of the lattice beam, and the door type truss is compared with the existing frame welded by hot-rolled section bars in this embodiment:
under the conditions of different spans and column distances, structural models of a traditional portal rigid frame and a novel welding-free detachable assembly system are established to respectively carry out design calculation, and a design result is contrastively analyzed.
The analysis conditions were as follows:
span: 12m, 15m, 18m, 21m, 24m, 27m, 30m, 33m, 36m
Column spacing: 6m, 7.5m, 9m, 10.5m, 12m
The structural form is as follows: the column feet are hinged, and the beam column is rigidly connected. In the double-slope roof, the height from the column foot to the cornice is 8.3m (the elevation of the column foot is minus 0.3m, and the elevation of the cornice is 8m), and the slope of the roof is 1: 15.
The material of the component is as follows: the span is 12 m-21 m, and the material is Q235-B; the span is 24 m-36 m, and the material is Q345-B;
constant load of 0.3KN/m2, live load: 0.5KN/m 2. The distance between the purlines is 1.5m, and the calculated length outside the plane of the roof beam is 3 m.
Stress ratio: the solid web column is about 0.92-0.97, and the maximum lattice component is not more than 1.0.
The structural member form: the solid web beam column plate is 5-16 mm in thickness, the beam column height is adjusted by taking 10mm as a unit, and the width is adjusted by taking 10mm as a unit. The chord members of the lattice member are back-to-back C-shaped steel, and the web members are C-shaped steel or back-to-back C-shaped steel. When the load is too large and the existing C-shaped steel model does not meet the requirements, the size of the C-shaped steel can be properly adjusted. When the load is too small, the existing C-shaped steel with the minimum model still wastes time, and cold-bent channel steel can be adopted.
The calculation results are shown in fig. 11-14, and it can be seen from fig. 11-14 that for a single truss (steel frame), the welding-free detachable assembly system of the embodiment can greatly save the steel consumption, which is saved by 40% -60% compared with the steel frame with a solid portal frame; under the condition of a certain span, the column distance is smaller, namely the load is smaller, and the effect of saving the steel consumption is more obvious.
Example 3
On the basis of the above embodiment, as shown in fig. 7, a combined purlin 3 is arranged between two adjacent lattice beams 2 in this embodiment, and the combined purlin 3 includes an upper chord 31, a lower chord 33 and a purlin web 32;
the upper chord 31 comprises two upper chord angle steels, one wing plate of each upper chord angle steel is parallel to the purlin web 32, and the wing plate of each upper chord angle steel parallel to the purlin web 32 is connected with the purlin web 32;
the lower chord 33 comprises two lower chord angle steels, one wing plate of the lower chord angle steel is parallel to the purlin web 32, and the wing plate of the lower chord angle steel parallel to the purlin web 32 is connected with the purlin web 32.
In the embodiment, the combined purlines 3 of the embodiment are compared with the conventional purlines by taking the factory building purlines with the spacing of 3m, the horizontal load of 0.5KN per square meter and the live load of 0.5KN per square meter as an example; the comparison data and graphs are shown in fig. 15-16, and it can be seen from the data and graphs that the combined purlin 3 of the embodiment can save more materials compared with the conventional purlin, and can greatly reduce the dead weight of the purlin.
The combined purline 3 of the embodiment is formed by connecting a thin steel plate as a web plate and a cold-bending angle steel as a wing plate through a self-tapping screw, can be used for factories and warehouses, can give full play to the cross section characteristic of the combined purline 3 of the embodiment, and has the following characteristics: be applicable to the purlin that the span is greater than 9m, can be used for 12m to stride heavy steel factory building purlin, compare high frequency welding H shaped steel, the using steel volume of saving, all plate members all can adopt the zinc-plating, solve anticorrosive problem, adopt bolt or self-tapping screw to connect, connect conveniently.
Example 4
On the basis of the above embodiment, as shown in fig. 8, the assembly system further includes a combined secondary beam 4; the combined secondary beam 4 comprises a beam upper chord 41, a beam lower chord 43 and a beam web 42;
the web 42 is a steel plate; the beam upper chord 41 comprises two hot rolled angle steels respectively arranged at two sides of a beam web 42, and one wing plate of the hot rolled angle steel is connected with the upper part of the beam web 42 through a bolt; the beam lower chord 43 comprises two hot rolled angle steels respectively arranged at two sides of the beam web 42, and one of the wing plates of the hot rolled angle steels is connected with the lower part of the beam web 42 through a bolt.
The combined secondary beam 4 is arranged on the bracket 5, and the beam lower chord 43 of the combined secondary beam 4 is connected with the supporting part of the bracket top plate.
The combined secondary beams 4 in the embodiment have a similar structure to the combined purlins 3 in the embodiment 3, the embodiment compares the secondary beams with the existing secondary beams, wherein the distance between the secondary beams is 3m, the horizontal load is 5.5 KN/square meter, and the live load is 2.5 KN/square meter, and the comparison data and graphs are shown in FIGS. 17-18; it can be seen from the comparison of the data and the graph that the steel consumption of the combined secondary beam 4 of the embodiment is far less than that of the existing combined secondary beam 4, so that the material can be saved and the self weight can be reduced. The composite sub-beams 4 of this embodiment are similar in structure to the composite purlins 3 of embodiment 3, and therefore, have the various features of the composite purlins 3 of embodiment 3.
Example 5
On the basis of the above embodiment, as shown in fig. 9, the composite purlin 3 further includes a plurality of pairs of angle steel stiffeners 34 perpendicular to the upper chord 31 and the lower chord 33;
two angle steel stiffening ribs 34 of each pair are respectively arranged on two sides of the purlin web 32, and one wing plate of each angle steel stiffening rib 34 is arranged in parallel with the purlin web 32;
the middle part of the angle steel stiffening rib is connected with the purline web, and the upper part and the lower part of the angle steel stiffening rib are respectively connected with the upper chord and the lower chord.
When the combination purlin 3 need design highly great, the stability of combination purlin 3 can descend, in order to guarantee the stability of combination purlin 3, this embodiment has set up stiffening rib on combination purlin 3, and stiffening rib sets up in pairs in the both sides of web, has guaranteed the stability of purlin.
Also, as shown in fig. 10, since the composite secondary beam 4 of embodiment 4 is similar in structure to a purlin, it is also possible to provide the composite secondary beam 4 with a stiffening rib 44 when the height of the load-bearing secondary beam and the crane beam is too large.
Example 6
On the basis of the above embodiment, as shown in fig. 19 to 20, the connection nodes of the purlins and the lattice beams are arranged according to the following structure: the lower chord angle steel 33 of the purline is arranged on the upper chord limb 21 of the lattice beam, and the purline is connected with the upper chord limb 21 of the lattice beam through a purline support 34;
the purlin strip comprises an L-shaped connecting plate and at least one stiffening plate, and two adjacent sides of the stiffening plate are respectively connected with two wing plates of the L-shaped plate;
the end part of the angle steel at one side of the purlin web 32 is arranged at an interval with the end part of the purlin web 32, and the interval is matched with the L-shaped plate; one of the wing plates of the L-shaped plate is connected with the purlin web 32 and the angle steel at the other side of the purlin web 32, and the other wing plate of the L-shaped plate is connected with the upper chord branch 21 of the lattice beam.
Example 7
On the basis of the above embodiments, as shown in fig. 21 to 22, the connecting node between the purlin and the beam of the present embodiment is configured by the following structure: the lower chord angle steel 33 of the purline is arranged on the upper chord limb 21 of the lattice beam, and the lower chord angle steel 33 of the purline is connected with the upper chord limb 21 of the lattice column.
Compared with the connecting node of the purline and the beam in the embodiment 6, the connecting mode is simpler and faster.
Example 8
On the basis of the above embodiment, as shown in fig. 23, the connection nodes of the lattice columns and the lattice beams are arranged as follows: the lattice column is respectively provided with two support rods 51 corresponding to the upper chord limb 21 and the lower chord limb 24 of the lattice beam, and the two support rods 51 are respectively coaxially arranged with the upper chord limb 21 and the lower chord limb 24 of the lattice beam; the upper support rod 51 and the upper chord limb 21 are connected to the inner limbs of the lattice column by gusset plates, and the lower support rod 51 and the lower chord limb 24 are connected to the inner limbs 11 of the lattice column by gusset plates.
One of the lacing bars of the lattice column and one of the lacing bars of the lattice beam are coaxially arranged.
The connection mode of lattice column and lattice roof beam in this embodiment does benefit to the intensity of reinforcing connected node, is favorable to the atress to be dispersed on overall structure, can not cause the destruction because the atress concentrates on a certain point.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (9)
1. The utility model provides a exempt from to weld demountable assembly system which characterized in that: the lattice column comprises at least two branches and a lacing strip for connecting the two branches;
the branches comprise two cold-formed C-shaped steels or cold-formed channel steels, and the opening directions of the two cold-formed C-shaped steels or cold-formed channel steels are opposite;
the batten strip comprises a cold-bending C-shaped steel or a cold-bending channel steel or two cold-bending C-shaped steel or cold-bending channel steel with opposite opening directions;
the limbs are connected with the batten strips through gusset plates, one side of each gusset plate is arranged between webs of the two cold-formed C-shaped steels or the two cold-formed channel steels of the limbs, and the gusset plates are connected with the webs of the two cold-formed C-shaped steels or the two cold-formed channel steels of the limbs;
the web plate of the cold-formed C-shaped steel or the cold-formed channel steel of the batten strip is connected with the other side of the gusset plate;
detachable corbels are arranged on the latticed columns and comprise corbel webs, corbel top plates and U-shaped stiffening plates, wherein the corbel webs and the corbel top plates are arranged in the same plane with the gusset plates;
the bracket web plate comprises a connecting part and a protruding part which are integrally formed, two sides of the connecting part are respectively connected with the two limbs, and the protruding part is arranged on one side of the lattice column;
the U-shaped stiffening plate is arranged between the two limbs, the horizontal part of the U-shaped stiffening plate is contacted with the upper edge of the connecting part of the bracket web,
the bracket top plate comprises an integrally formed L-shaped plate, the vertical section of the L-shaped plate is a connecting part, the horizontal section of the L-shaped plate is a supporting part, the supporting part of the bracket top plate is in contact with the extending part of the bracket web plate, and the connecting part of the bracket top plate, one of the cold-formed C-shaped steel or cold-formed channel steel wing plate of one limb and one of the vertical parts of the U-shaped stiffening plate are connected through bolts; and the other vertical part of the U-shaped stiffening plate is connected with the cold-formed C-shaped steel or the cold-formed channel steel wing plate of the other branch limb through a bolt.
2. The solder-free demountable assembly system of claim 1, wherein: the assembly system also comprises a lattice beam, two ends of which are respectively connected with the two lattice columns; the lattice beam comprises an upper chord branch, a lower chord branch and a lacing strip, wherein two ends of the lacing strip are respectively connected with the upper chord branch and the lower chord branch;
the upper chord branch and the lower chord branch both comprise two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions,
the batten strip comprises cold-formed C-shaped steel or cold-formed channel steel or two cold-formed C-shaped steel or cold-formed channel steel with opposite opening directions;
the upper and lower chord branches are connected with the lacing bars through gusset plates.
3. The solder-free demountable assembly system of claim 2, wherein: the lattice column is respectively provided with two support rods corresponding to the upper chord limb and the lower chord limb of the lattice beam, and the two support rods are respectively coaxially arranged with the upper chord limb and the lower chord limb of the lattice beam; the upper supporting rod and the upper chord limb are connected with the limbs on the inner side of the lattice column through gusset plates, and the lower supporting rod and the lower chord limb are connected with the limbs on the inner side of the lattice column through gusset plates.
4. The solder-free demountable assembly system of claim 1, wherein: a combined purline is arranged between every two adjacent lattice beams and comprises an upper chord, a lower chord and a purline web plate;
the upper chord comprises two upper chord angle steels, one wing plate of each upper chord angle steel is parallel to the web plate of the purlin, and the wing plate of each upper chord angle steel parallel to the web plate of the purlin is connected with the web plate of the purlin;
the lower chord comprises two lower chord angle steels, one wing plate of each lower chord angle steel is parallel to the web plate of the purline, and the wing plate of each lower chord angle steel parallel to the web plate of the purline is connected with the web plate of the purline.
5. The solder-free demountable assembly system of claim 4, wherein: the combined purline also comprises a plurality of pairs of angle steel stiffening ribs which are vertical to the upper chord and the lower chord;
the two angle steel stiffening ribs of each pair are respectively arranged at two sides of the web plate of the purline, and one wing plate of each angle steel stiffening rib is arranged in parallel with the web plate of the purline;
the middle part of the angle steel stiffening rib is connected with the purline web, and the upper part and the lower part of the angle steel stiffening rib are respectively connected with the upper chord and the lower chord.
6. The solder-free demountable assembly system of claim 4, wherein: the lower chord angle steel of the purline is arranged on the upper chord limb of the lattice beam, and the purline is connected with the upper chord limb of the lattice beam through a purline support;
the purlin support comprises an L-shaped connecting plate and at least one stiffening plate, and two adjacent sides of the stiffening plate are respectively connected with two wing plates of the L-shaped connecting plate;
the end part of the angle steel at one side of the purlin web plate is arranged at an interval with the end part of the purlin web plate, and the interval is matched with the L-shaped connecting plate; one wing plate of the L-shaped connecting plate is connected with the purlin web plate and angle steel on the other side of the purlin web plate, and the other wing plate of the L-shaped connecting plate is connected with the upper chord limb of the lattice beam;
or;
and the lower chord angle steel of the purline is arranged on the upper chord limb of the lattice beam and is connected with the upper chord limb of the lattice beam.
7. The solder-free demountable assembly system of claim 1, wherein: the assembly system further comprises a combined secondary beam; the combined secondary beam comprises an upper beam chord, a lower beam chord and a beam web plate;
the beam web is a steel plate; the beam upper chord comprises two hot rolled angle steels respectively arranged at two sides of a beam web plate, and one wing plate of each hot rolled angle steel is connected with the upper part of the beam web plate through a bolt; the beam lower chord comprises two hot rolled angle steels respectively arranged on two sides of a beam web plate, and one wing plate of each hot rolled angle steel is connected with the lower part of the beam web plate through a bolt.
8. The solderless demountable assembly system of claim 7, wherein: the combined secondary beam is arranged on the bracket, and the beam lower chord of the combined secondary beam is connected with the supporting part of the bracket top plate.
9. The solder-free demountable assembly system of claim 2, wherein: an inclined support is arranged between the lattice column and the lattice beam, the lower end of the inclined support is connected with the limbs on the inner side of the lattice column through a gusset plate, and the upper end of the inclined support is connected with the lower chord limbs of the lattice beam through a gusset plate;
one of the lacing bars of the lattice column and one of the lacing bars of the lattice beam are coaxially arranged.
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| CN107762161B (en) * | 2017-10-17 | 2019-09-10 | 新疆农业大学 | A kind of energy-saving assembled system of steel residential structure and installation method |
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