CN115853197A - Assembly type staggered column light steel truss structure and construction method - Google Patents
Assembly type staggered column light steel truss structure and construction method Download PDFInfo
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- CN115853197A CN115853197A CN202211553613.9A CN202211553613A CN115853197A CN 115853197 A CN115853197 A CN 115853197A CN 202211553613 A CN202211553613 A CN 202211553613A CN 115853197 A CN115853197 A CN 115853197A
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Abstract
The invention discloses an assembled staggered column light steel truss structure and a construction method, wherein the steel truss structure comprises a bearing structure and a non-bearing structure, corner columns arranged at corners of a structure body are integrated columns with continuous full length, the bearing structure is arranged in an interlayer breaking mode, each layer in the bearing structure adopts a column-beam mode, the top end of each bearing column in the bearing structure is provided with a cross beam, non-bearing columns in the non-bearing structure are arranged in a staggered mode, and the construction method comprises the following steps: firstly, embedding bolts on a foundation of a steel truss structure part to be arranged; secondly, arranging bearing columns at the bearing parts according to a set interval; and step three, setting a node connecting mechanism in the non-bearing structure. Has the advantages that: the stability is strong, the toughness is high, the anti-seismic performance is good, the construction is greatly simplified, and the construction speed is accelerated.
Description
Technical Field
The invention relates to a truss structure and a construction method, in particular to an assembled staggered column light steel truss structure and a construction method.
Background
At present, in order to meet the requirement of areas with higher seismic fortification intensity, the research on low-layer cold-bent thin-walled steel structures is embodied in that adjacent columns are arranged in a staggered mode, main components bearing vertical loads are disconnected between the layers, common bolt connection can generate slippage, and the horizontal bearing capacity cannot meet the requirement.
The cold-formed thin-walled steel is used as a main material of a light steel structure system, has the advantages of high strength, good toughness and the like, but has higher cost and more fussy construction and installation, and has higher cost and slower construction speed for the existing welding connection or sleeve grouting connection.
In summary, how to strengthen the joint connection of the staggered column rows, design the structure form of the corner columns and simplify the construction method of the low-layer cold-bending thin-wall steel structure system is a problem to be solved by technical personnel in the current field.
Disclosure of Invention
The invention aims to provide an assembled staggered column light steel truss structure and a construction method thereof, which aim to strengthen the node connection of staggered columns, design the structure form of a corner column and simplify the construction method of a low-layer cold-bending thin-walled steel structure system.
The invention provides an assembled staggered column light steel truss structure which comprises a bearing structure and a non-bearing structure, wherein corner columns arranged at corners of a structure body are continuous integral columns with continuous full length, the bearing structure is arranged in an interlayer breaking mode, each layer in the bearing structure is in a column-beam mode, a cross beam is assembled at the top end of each bearing column in the bearing structure, non-bearing columns in the non-bearing structure are arranged in a staggered mode, short non-bearing columns are connected above the long non-bearing columns, long non-bearing columns are connected above the short non-bearing columns in adjacent column rows, and the non-bearing columns in adjacent columns are arranged into staggered column rows.
The corner column is a three-spliced cold-bending thin-wall type integrally-formed steel column.
The bottom of the bearing column and the bottom of the non-bearing column which are arranged on the lowest parts of the bearing structure and the non-bearing structure and the bottom of the corner column are fixedly connected with a bottom rail, the bottom rail is U-shaped, and the bottom rail is fixed on a foundation through bolts and nuts.
And an interlayer guide rail is assembled between the bearing column and the cross beam on each layer in the bearing structure, and a pull rod is assembled between the interlayer guide rails at the top and the bottom of the cross beam for connection.
A plurality of rows of continuous through-length trusses are uniformly distributed among the rows of bearing columns in the bearing structure according to a set interval, and each continuous through-length truss is formed by combining a plurality of short trusses.
The non-bearing structure is provided with a plurality of rows of trusses with continuous through length according to a set interval, each row of trusses with continuous through length is formed by combining a plurality of short trusses, non-bearing columns in the non-bearing structure are assembled between adjacent rows of trusses, a plurality of layers of assembled fences are clamped between the other adjacent trusses, and a window is reserved between the upper assembled fence and the lower assembled fence.
The node between long non-bearing post and the short non-bearing post among the non-bearing structure is connected through coupling mechanism, coupling mechanism is including the sleeve, consolidate C shaped steel and prestressing steel, wherein consolidate C shaped steel and link firmly in the crossing department of long non-bearing post and short non-bearing post through self-tapping screw, the border at consolidating C shaped steel is established to the sleeve cover, prestressing steel is around establishing on the sleeve, cement concrete has been pour in the sleeve, cement concrete in the sleeve reaches tensile prestressing steel and anchor after setting for intensity, the both ends lid of sleeve is established the apron and is carried out the shutoff after cement concrete in the sleeve reaches setting for intensity.
The invention provides a construction method of an assembled staggered column light steel truss structure, which comprises the following steps:
firstly, embedding bolts on a foundation of a steel truss structure part to be arranged, punching corresponding positions of a U-shaped bottom rail, and fixing the U-shaped bottom rail on the foundation by using nuts; mounting corner columns at the end parts of the bottom rails, wherein the corner columns are in the form of three-spliced cold-bending thin-wall section steel columns, mounting non-bearing columns of staggered column rows on the bottom rails at non-bearing parts, the staggered column rows are sequentially provided with short non-bearing columns and long non-bearing columns from left to right, a set interval is reserved, mounting assembly type trusses at two ends of the set interval along the height direction, mounting a plurality of layers of assembly type fences between two adjacent rows of trusses along the height direction, and reserving windows between the upper and lower adjacent layers of assembly type fences;
secondly, arranging bearing columns at the bearing part according to a set interval, reserving a set interval between a plurality of rows of bearing columns, arranging an assembly type truss between the set intervals, arranging an interlayer guide rail with a downward opening above the bearing columns to be connected with the bearing columns, then laterally erecting a cross beam on the interlayer guide rail, wherein the arrangement mode of the cross beam is consistent with that of the columns to form a column-beam type, penetrating a pull rod between the two interlayer guide rails at the top and the bottom of the cross beam to be connected, arranging an interlayer guide rail with an upward opening above the cross beam to fix the bearing columns on the upper layer of the cross beam, and repeating the steps to assemble a plurality of layers of cold-bending thin-wall type steel structure systems;
step three, setting a node connecting mechanism between a long non-bearing column and a short non-bearing column in a non-bearing structure, wherein the connecting mechanism comprises a sleeve, reinforced C-shaped steel and prestressed steel bars, the reinforced C-shaped steel is fixedly connected to the intersection of the long non-bearing column and the short non-bearing column through self-tapping screws, the sleeve is sleeved on the periphery of the reinforced C-shaped steel, the prestressed steel bars are wound on the sleeve, cement concrete is poured in the sleeve, the prestressed steel bars are tensioned and anchored after the cement concrete in the sleeve reaches a set strength, and cover plates are arranged at two ends of the sleeve for plugging after the cement concrete in the sleeve reaches the set strength.
The invention has the beneficial effects that:
the fabricated staggered column light steel truss structure and the construction method provided by the invention have the advantages of strong stability, high toughness and good earthquake resistance. The installation of the assembly truss and the assembly fence is adopted, so that the construction is greatly simplified, and the construction speed is accelerated. The integrity of a structural system is also ensured, the stress performance of the staggered column arrays is not greatly different from that of the continuous columns, the transportation is greatly facilitated, and the material transportation cost is also reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a staggered column light steel truss structure.
Figure 2 is a schematic view of a load bearing structure according to the present invention.
Figure 3 is a schematic view of a non-load bearing structure according to the present invention.
Figure 4 is a schematic view of the interlayer connection of the load bearing structure according to the invention.
Fig. 5 is a schematic view of a short truss structure according to the present invention.
Fig. 6 is a schematic view of the assembled fence structure of the present invention.
FIG. 7 is a schematic view of the construction of the foundation and the bottom rail according to the present invention.
FIG. 8 is a schematic view of the junction between the intersection of a long non-load bearing column and a short non-load bearing column according to the present invention.
FIG. 9 is a schematic view of the connection between a long non load-bearing column and a short non load-bearing column according to the present invention.
FIG. 10 is a schematic cross-sectional view of the intersection node of a long non-load-bearing column and a short non-load-bearing column according to the present invention.
The labels in the above figures are as follows:
1. corner post 2, bearing post 3, crossbeam 4, non-bearing post 5, bottom rail
6. Interlayer guide rail 7, pull rod 8, truss 9, short truss 10 and assembled fence
11. Window 12, sleeve 13, reinforced C-shaped steel 14 and prestressed steel bar
15. And (7) a cover plate.
Detailed Description
Please refer to fig. 1 to 10:
the invention provides an assembled staggered column light steel truss structure which comprises a bearing structure and non-bearing structures, wherein corner columns 1 arranged at corners of a structure body are continuous integral columns in full length, the bearing structure is arranged in an interlayer breaking mode, each layer in the bearing structure is in a column-beam mode, a cross beam 3 is assembled at the top end of each bearing column 2 in the bearing structure, non-bearing columns 4 in the non-bearing structures are arranged in a staggered mode, short non-bearing columns 4 are connected above the long non-bearing columns 4, long non-bearing columns 4 are connected above the short non-bearing columns 4 in adjacent column rows, and the non-bearing columns 4 in adjacent columns are arranged in staggered column rows.
The corner post 1 is a three-spliced cold-bending thin-wall type integrally-formed steel post.
The bottoms of the bearing columns 2 and the non-bearing columns 4 at the lowest parts of the bearing structures and the non-bearing structures and the bottoms of the corner columns 1 are fixedly connected with a bottom rail 5, the bottom rail 5 is U-shaped, and the bottom rail 5 is fixed on a foundation through bolts and nuts.
An interlayer guide rail 6 is arranged between the bearing column 2 and the cross beam 3 on each layer in the bearing structure, and a pull rod 7 is arranged between the interlayer guide rails 6 at the top and the bottom of the cross beam 3 for connection.
A plurality of rows of continuous through-length trusses 8 are uniformly distributed among the rows of bearing columns 2 in the bearing structure according to a set interval, and each continuous through-length truss 8 is formed by combining a plurality of short trusses 9.
A plurality of rows of trusses 8 with continuous through length are assembled in the non-bearing structure according to a set interval, each row of trusses 8 with continuous through length is formed by combining a plurality of short trusses 9, non-bearing columns 4 in the non-bearing structure are assembled between adjacent rows of trusses 8, a plurality of layers of assembled fences 10 are clamped between the other adjacent trusses 8, and a window 11 is reserved between the upper assembled fence 10 and the lower assembled fence 10.
The node between long non-bearing post 4 and the short non-bearing post 4 among the non-bearing structure is connected through coupling mechanism, coupling mechanism is including sleeve 12, consolidate C shaped steel 13 and prestressing steel 14, wherein consolidate C shaped steel 13 and link firmly in the crossing department of long non-bearing post 4 and short non-bearing post 4 through self-tapping screw, sleeve 12 cover is established at the periphery of consolidating C shaped steel 13, prestressing steel 14 is around establishing on sleeve 12, cement concrete has been pour in the sleeve 12, cement concrete in the sleeve 12 reaches tensile prestressing steel 14 and anchor after setting for intensity, the both ends lid of sleeve 12 is established apron 15 and is carried out the shutoff after cement concrete in the sleeve 12 reaches setting for intensity.
The invention provides a construction method of an assembled staggered column light steel truss structure, which comprises the following steps:
firstly, embedding bolts on a foundation of a steel truss structure part to be arranged, punching holes in corresponding positions of a U-shaped bottom rail 5, and fixing the U-shaped bottom rail on the foundation by using nuts; the method comprises the following steps that an angle column 1 is installed at the end part of a bottom rail 5, the angle column 1 is in a three-spliced cold-bending thin-wall section steel column form, non-bearing columns 4 of staggered column rows are installed on the bottom rail 5 of a non-bearing part, the staggered column rows are sequentially short non-bearing columns 4 and long non-bearing columns 4 from left to right, a set interval is reserved, assembling type trusses 8 are installed at two ends of the set interval along the height direction, a plurality of layers of assembling type fences 10 are installed between two adjacent rows of trusses 8 along the height direction, and a window 11 is reserved between the assembling type fences 10 of the upper and lower adjacent layers;
secondly, arranging bearing columns 2 at the bearing part according to a set interval, reserving a set interval between a plurality of rows of bearing columns 2, then installing an assembly type truss 8 between the set intervals, installing an interlayer guide rail 6 with a downward opening above the bearing columns 2 to be connected with the bearing columns 2, then erecting a cross beam 3 on the interlayer guide rail 6, enabling the arrangement mode of the cross beam 3 to be consistent with that of the columns, forming a column-beam type, penetrating a pull rod 7 between the two interlayer guide rails 6 at the top and the bottom of the cross beam 3 to be connected, placing the interlayer guide rail 6 with an upward opening above the cross beam 3 to be used for fixing the bearing columns 2 on the upper layer of the cross beam 3, repeating the steps, and assembling a plurality of layers of cold-bending thin-wall type steel structure systems;
step three, arranging a node connecting mechanism between a long non-bearing column 4 and a short non-bearing column 4 in a non-bearing structure, wherein the connecting mechanism comprises a sleeve 12, a reinforcing C-shaped steel 13 and a prestressed reinforcement 14, the reinforcing C-shaped steel 13 is fixedly connected at the intersection of the long non-bearing column 4 and the short non-bearing column 4 through self-tapping screws, the sleeve 12 is sleeved on the periphery of the reinforcing C-shaped steel 13, the prestressed reinforcement 14 is wound on the sleeve 12, cement concrete is poured in the sleeve 12, the prestressed reinforcement 14 is tensioned and anchored after the cement concrete in the sleeve 12 reaches a set strength, and cover plates 15 are arranged at two ends of the sleeve 12 for plugging after the cement concrete in the sleeve 12 reaches the set strength.
Claims (8)
1. The utility model provides a light steel truss structure of crisscross column of assembled which characterized in that: including bearing structure and non-bearing structure, wherein the corner post that the structure body corner set up is the continuous integrative post of full length, bearing structure adopts the form setting of breaking off between the layer, bearing structure is every layer all adopts the form of a post roof beam, the top of each bearing post in bearing structure all is equipped with a crossbeam, non-bearing post in non-bearing structure adopts crisscross form setting, connect short non-bearing post above long non-bearing post, then connect long non-bearing post above short non-bearing post at adjacent column, non-bearing post of adjacent several rows sets up to crisscross column.
2. The fabricated staggered column light steel truss structure of claim 1, wherein: the corner column is a three-spliced cold-bending thin-wall type integrally-formed steel column.
3. The fabricated staggered column light steel truss structure of claim 1, wherein: the bottom of the bearing column and the bottom of the non-bearing column of the bearing structure and the non-bearing structure at the lowest part and the bottom of the corner column are fixedly connected with a bottom rail, the bottom rail is U-shaped, and the bottom rail is fixed on a foundation through bolts and nuts.
4. The fabricated staggered column light steel truss structure of claim 1, wherein: and an interlayer guide rail is arranged between the bearing column and the cross beam on each layer in the bearing structure, and a pull rod is arranged between the interlayer guide rails at the top and the bottom of the cross beam for connection.
5. The fabricated staggered column light steel truss structure of claim 1, wherein: the bearing structure is characterized in that a plurality of rows of continuous trusses are uniformly distributed among the rows of bearing columns according to a set interval, and each continuous truss is formed by combining a plurality of short trusses.
6. The fabricated staggered column light steel truss structure of claim 1, wherein: the non-bearing structure is provided with a plurality of rows of trusses with continuous through length according to a set interval, each row of trusses with continuous through length is formed by combining a plurality of short trusses, non-bearing columns in the non-bearing structure are assembled between adjacent rows of trusses, a plurality of layers of assembled fences are clamped between the other adjacent trusses, and a window is reserved between the upper assembled fence and the lower assembled fence.
7. The fabricated staggered column light steel truss structure of claim 1, wherein: non-bearing structure between long non-bearing post and the short non-bearing post node pass through coupling mechanism and connect, coupling mechanism is including the sleeve, consolidate C shaped steel and prestressing steel, wherein consolidate C shaped steel and pass through self-tapping screw and connect firmly in the crossing department of long non-bearing post and short non-bearing post, the periphery at consolidating C shaped steel is established to the sleeve cover, prestressing steel is around establishing on the sleeve, cement concrete has been pour in the sleeve, cement concrete in the sleeve reaches tensile prestressing steel and anchor after setting for intensity, the both ends lid of sleeve is established the apron and is carried out the shutoff after cement concrete in the sleeve reaches setting for intensity.
8. A construction method of an assembled staggered column light steel truss structure is characterized by comprising the following steps: the method comprises the following steps:
firstly, embedding bolts on a foundation of a steel truss structure part to be arranged, punching corresponding positions of a U-shaped bottom rail, and fixing the U-shaped bottom rail on the foundation by using nuts; mounting corner columns at the end parts of the bottom rails, wherein the corner columns are in the form of three-spliced cold-bending thin-wall section steel columns, mounting non-bearing columns of staggered column rows on the bottom rails at non-bearing parts, the staggered column rows are sequentially provided with short non-bearing columns and long non-bearing columns from left to right, a set interval is reserved, mounting assembly type trusses at two ends of the set interval along the height direction, mounting a plurality of layers of assembly type fences between two adjacent rows of trusses along the height direction, and reserving windows between the upper and lower adjacent layers of assembly type fences;
secondly, arranging bearing columns at the bearing part according to a set interval, reserving a set interval between a plurality of rows of bearing columns, arranging an assembly type truss between the set intervals, arranging an interlayer guide rail with a downward opening above the bearing columns to be connected with the bearing columns, then laterally erecting a cross beam on the interlayer guide rail, wherein the arrangement mode of the cross beam is consistent with that of the columns to form a column-beam type, penetrating a pull rod between the two interlayer guide rails at the top and the bottom of the cross beam to be connected, arranging an interlayer guide rail with an upward opening above the cross beam to fix the bearing columns on the upper layer of the cross beam, and repeating the steps to assemble a plurality of layers of cold-bending thin-wall type steel structure systems;
step three, setting a node connecting mechanism between a long non-bearing column and a short non-bearing column in a non-bearing structure, wherein the connecting mechanism comprises a sleeve, reinforced C-shaped steel and prestressed steel bars, the reinforced C-shaped steel is fixedly connected to the intersection of the long non-bearing column and the short non-bearing column through self-tapping screws, the sleeve is sleeved on the periphery of the reinforced C-shaped steel, the prestressed steel bars are wound on the sleeve, cement concrete is poured in the sleeve, the prestressed steel bars are tensioned and anchored after the cement concrete in the sleeve reaches a set strength, and cover plates are arranged at two ends of the sleeve for plugging after the cement concrete in the sleeve reaches the set strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553613.9A CN115853197A (en) | 2022-12-06 | 2022-12-06 | Assembly type staggered column light steel truss structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553613.9A CN115853197A (en) | 2022-12-06 | 2022-12-06 | Assembly type staggered column light steel truss structure and construction method |
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| Publication Number | Publication Date |
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| CN115853197A true CN115853197A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211553613.9A Pending CN115853197A (en) | 2022-12-06 | 2022-12-06 | Assembly type staggered column light steel truss structure and construction method |
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| CN (1) | CN115853197A (en) |
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- 2022-12-06 CN CN202211553613.9A patent/CN115853197A/en active Pending
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