CN219753455U - Roof steel truss structure - Google Patents
Roof steel truss structure Download PDFInfo
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- CN219753455U CN219753455U CN202320581540.8U CN202320581540U CN219753455U CN 219753455 U CN219753455 U CN 219753455U CN 202320581540 U CN202320581540 U CN 202320581540U CN 219753455 U CN219753455 U CN 219753455U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 206
- 239000010959 steel Substances 0.000 title claims abstract description 206
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 38
- 230000004907 flux Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003973 paint Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of steel structure construction and discloses a roof steel truss structure. A plurality of steel trusses are distributed at intervals on the periphery of the roof main body, and the steel trusses are fixed in a structural concrete main body of the roof outer periphery of the roof main body through pre-buried assemblies; the steel trusses are connected in sections by a plurality of steel beams to form a firm and stable steel truss structure with reliable structural strength, so that a stable steel truss structure is built on the roof of the tower roof. Aiming at the steel structure framework existing on the high-rise or ultrahigh roof, the high-safety and high-efficiency hoisting connection of the steel structure in different operations can be ensured, the number of field steel truss segments is reduced to the greatest extent, and the field steel structure connection work is reduced. The structure is firm, the bearing force is strong, and the effect of conciseness and smoothness is realized visually. The whole structure has attractive appearance and unique shape, and in addition, the steel truss structure has good whole performance, large structural span, large torsional rigidity, less steel consumption, lighter self weight and better economic effect.
Description
Technical Field
The utility model relates to the technical field of steel structure construction, in particular to a roof steel truss structure.
Background
The steel truss is a truss structure made of steel, and along with the development of national economy, the building truss structure is widely applied to buildings, the truss in the truss structure is a truss girder, and the truss structure is a lattice girder type structure, and building construction can be like machine production, building components can be manufactured and then transported to a construction site for assembly.
Chinese patent CN 217400099U discloses a large-span building roofing steel truss structure, and this patent describes the large-span building roofing steel truss structure that comprises concrete member, pre-buried component, prefabricated truss and tie beam, through on-the-spot hoist and mount prefabricated truss, need not set up full hall frame, still reduce intensity of labour simultaneously to guaranteed the installation quality of steel truss, reduce aerial operation time, improve the security.
Based on this, the present utility model has developed a steel truss structure suitable for roofing.
Disclosure of Invention
Aiming at the defects in the prior art, the roof steel truss structure is provided; the method has the characteristics of safety, reliability and capability of improving the installation strength and the overall stability of the steel structure of the high-rise or super-high-rise roof.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a roofing steel truss structure which characterized in that: including a plurality of steel trusses that vertically laid, fixed connection girder steel between two adjacent steel trusses and be located the pre-buried subassembly in the structural concrete main part of roofing outside border, lay a plurality of steel trusses at roofing border interval according to the size of design roofing, pre-buried subassembly is located the bottom of steel truss, and fixed continuous between the bottom of pre-buried subassembly and steel truss.
According to the technical scheme, the steel truss comprises two steel columns which are vertically distributed, and the straight web members and the inclined web members which are positioned between the steel columns, wherein a plurality of straight web members are horizontally fixed between the steel columns at intervals, a plurality of inclined web members are obliquely fixed between the steel columns at intervals, and the inclined web members and the straight web members are distributed in a staggered mode.
According to the technical scheme, the same connecting point exists between the adjacent straight web member and the adjacent inclined web member on the steel column.
According to the technical scheme, the steel column and the straight web member and the steel column and the inclined web member are connected by fillet welding, and the first stiffening plates are arranged at the joints, and two adjacent right-angle edges of the first stiffening plates are respectively welded on the steel column and the straight web member or two adjacent right-angle edges of the first stiffening plates are respectively welded on the steel column and the inclined web member.
According to the technical scheme, the steel truss is connected with the steel beam by angle welding, and the connection point is arranged on a steel column of the steel truss; and a third stiffening plate is arranged at the joint of the steel truss and the steel beam, and two adjacent right-angle sides of the third stiffening plate are welded on the steel column and the steel beam respectively.
According to the technical scheme, the embedded assembly comprises a plurality of anchor bars embedded into a structural concrete main body of the outer peripheral ring of the roof and an embedded plate fixed at the top of the anchor bars, wherein the anchor bars are welded or connected with the embedded plate through bolts; the bottom of the steel truss is fixed on the top of the embedded plate.
According to the technical scheme, a plurality of second stiffening plates are arranged between the embedded plates and the steel truss, and two adjacent right-angle sides of the second stiffening plates are welded on the embedded plates and the steel truss respectively (the second stiffening plates are welded on steel columns of the steel truss).
According to the technical scheme, a welding mode of hole plug welding is adopted between the embedded plate and the anchor bar; the size of the embedded plate, the size and the number of the anchor bars and the specification of the second stiffening plate are adjusted according to the actual condition of the site, so that the whole structure is firm and stable.
According to the technical scheme, the steel truss, the steel beam, the embedded part and the stiffening plate are all made of Q235B steel; the welding mode among all the parts adopts an E43 type welding rod when manual welding is adopted; when automatic or semi-automatic welding is adopted, H10Mn2 welding wires and corresponding welding fluxes are adopted; when CO2 is used for shielded welding, ER50-3 flux is used.
According to the technical scheme, the steel truss, the steel beam, the embedded part and the stiffening plate are subjected to sand blasting or shot blasting, and the grade is Sa21/2; after rust removal, a layer of water-based inorganic zinc-rich paint, two layers of epoxy connecting paint and two layers of acrylic polysiloxane finish paint are sequentially coated on the steel truss, the steel beam, the embedded part and the stiffening plate, and the paint layer is coated after the welded seam part is qualified after detection.
The utility model has the following beneficial effects:
a plurality of steel trusses are distributed at intervals on the periphery of the roof main body, and the steel trusses are fixed in a structural concrete main body of the roof outer periphery of the roof main body through pre-buried assemblies; the steel trusses are connected in sections by a plurality of steel beams to form a firm and stable steel truss structure with reliable structural strength, so that a stable steel truss structure is built on the roof of the tower roof. Aiming at the steel structure framework existing on the high-rise or ultrahigh roof, the high-safety and high-efficiency hoisting connection of the steel structure in different operations can be ensured, the number of field steel truss segments is reduced to the greatest extent, and the field steel structure connection work is reduced. The structure is firm, the bearing force is strong, and the effect of conciseness and smoothness is realized visually. The whole structure has attractive appearance and unique shape, and in addition, the steel truss structure has good whole performance, large structural span, large torsional rigidity, less steel consumption, lighter self weight and better economic effect.
Drawings
FIG. 1 is an expanded elevation view of a provided embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a steel truss of an embodiment of the utility model;
FIG. 3 is a cross-sectional view of a structural concrete body joint of a steel column, embedded components, and a perimeter of a roof in accordance with an embodiment of the present utility model;
FIG. 4 is a plan view of a structural concrete body joint of a steel column, embedded components, and a perimeter of a roof outer side in accordance with an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of the interior of a steel truss of an embodiment of the utility model;
FIG. 6 is a plan view of a steel girder and steel truss connection in accordance with an embodiment of the present utility model;
FIG. 7 is a cross-sectional view of a steel girder and steel truss connection in accordance with an embodiment of the present utility model;
FIG. 8 is a state of use diagram of an embodiment of the present utility model;
in the figure, 1, a steel truss; 1-1, a steel column; 1-2, straight web members; 1-3, diagonal web members; 2. a steel beam; 3. a structural concrete body of the outer perimeter of the roof; 4. pre-burying the assembly; 4-1, anchor bars; 4-2, embedding the plate; 4-3, a second stiffening plate; 5. and a third stiffening plate.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Example 1
Referring to fig. 1-2 and 8, the roof steel truss structure provided by the utility model comprises a plurality of steel trusses 1 which are vertically arranged, steel beams 2 which are fixedly connected between two adjacent steel trusses, and pre-buried assemblies 4 which are positioned in a structural concrete main body 3 of the outer side circumference of a roof, wherein the plurality of steel trusses are arranged at intervals on the circumference of the roof according to the size of the designed roof, and the pre-buried assemblies are positioned at the bottom ends of the steel trusses and fixedly connected with the bottom ends of the steel trusses.
In the embodiment, a plurality of steel trusses are distributed at intervals on the periphery of the roof main body, and the steel trusses are fixed in the structural concrete main body of the roof outer periphery of the roof main body through the embedded assembly; the steel trusses are connected in sections by a plurality of steel beams to form a firm and stable steel truss structure with reliable structural strength, so that a stable steel truss structure is built on the roof of the tower roof. Aiming at the steel structure framework existing on the high-rise or ultrahigh roof, the high-safety and high-efficiency hoisting connection of the steel structure in different operations can be ensured, the number of field steel truss segments is reduced to the greatest extent, and the field steel structure connection work is reduced. The structure is firm, the bearing force is strong, and the effect of conciseness and smoothness is realized visually. The whole structure has attractive appearance and unique shape, and in addition, the steel truss structure has good whole performance, large structural span, large torsional rigidity, less steel consumption, lighter self weight and better economic effect.
Example 2
Referring to fig. 1 to 7, on the basis of example 1, a structural composition of a steel truss and a pre-buried member is specifically given, but the steel truss and the pre-buried member are not limited to the following structures.
The steel truss comprises two steel columns 1-1 which are vertically distributed, and a plurality of straight web members 1-2 and inclined web members 1-3 which are positioned between the steel columns, wherein the plurality of straight web members are horizontally fixed between the steel columns at intervals, the plurality of inclined web members are obliquely fixed between the steel columns at intervals, and the inclined web members and the straight web members are distributed in a staggered mode.
The embedded assembly comprises a plurality of anchor bars 4-1 embedded into a structural concrete main body of the outer peripheral ring of the roof and embedded plates 4-2 fixed at the tops of the anchor bars, wherein the anchor bars and the embedded plates are welded or connected by bolts; the bottom of the steel truss is fixed on the top of the embedded plate.
Example 3
Referring to fig. 1 to 7, the principle of embodiment 3 is the same as that of embodiment 2, except that: the adjacent straight web members and the diagonal web members have the same connection point on the steel column. According to the measures, the inclined web members and the straight web members form Z-shaped connection, and the inclined web members and the straight web members can be processed and connected into a stable and reliable steel truss integral structure in a processing field.
Further, the steel column and the straight web member are connected by fillet welding, and the connection part is provided with a first stiffening plate, two adjacent right-angle edges of the first stiffening plate are respectively welded on the steel column and the straight web member, or two adjacent right-angle edges of the first stiffening plate are respectively welded on the steel column and the inclined web member. The steel truss is connected with the steel beam by angle welding, and the connection point is arranged on a steel column of the steel truss; and a third stiffening plate 5 is arranged at the joint of the steel truss and the steel beam, and two adjacent right-angle sides of the third stiffening plate are respectively welded on the steel column and the steel beam. According to the arrangement of the first stiffening plate and the third stiffening plate, the steel truss can be processed and connected into a stable and reliable steel truss integral structure in a processing field.
Example 4
Referring to fig. 1 to 7, the principle of embodiment 4 is the same as that of embodiment 2, except that: and a second stiffening plate is arranged between the embedded plate and the steel truss, so that the fixing strength of the steel truss on the structural concrete main body of the roofing outer side circumference of the roofing main body is enhanced.
Specifically, a plurality of second stiffening plates 4-3 are arranged between the embedded plate and the steel truss, and two adjacent right-angle sides of the second stiffening plates are welded on the embedded plate and the steel truss respectively (the second stiffening plates are welded on steel columns of the steel truss). A welding mode of open pore plug welding is adopted between the embedded plate and the anchor bar; the size of the embedded plate, the size and the number of the anchor bars and the specification of the second stiffening plate are adjusted according to the actual condition of the site, so that the whole structure is firm and stable.
Example 5
The structure and principle of example 5 and examples 1-4 are the same, except that: the steel truss, the steel beam, the embedded part and the stiffening plate are further limited to be Q235B steel; the welding mode among all the parts adopts an E43 type welding rod when manual welding is adopted; when automatic or semi-automatic welding is adopted, H10Mn2 welding wires and corresponding welding fluxes are adopted; when CO2 is used for shielded welding, ER50-3 flux is used. The materials of the steel truss, the steel beam, the embedded part and the stiffening plate can be replaced according to the requirement, and the welding mode among the components, the welding materials and the welding flux are selected and determined according to the requirement.
Example 6
Example 6 and examples 1-4 are identical in structure and principle, except that: the steel truss, the steel beam, the embedded part and the stiffening plate are subjected to sand blasting or shot blasting, and the grade is Sa21/2; after rust removal, a layer of water-based inorganic zinc-rich paint, two layers of epoxy connecting paint and two layers of acrylic polysiloxane finish paint are sequentially coated on the steel truss, the steel beam, the embedded part and the stiffening plate, and the paint layer is coated after the welded seam part is qualified after detection. Other rust-proof measures can be adopted for the roof steel truss structure according to requirements.
The construction process of the utility model is as follows:
firstly, welding a pre-buried plate and anchor bars into a stable whole before pouring main body structure concrete, and pre-burying the whole in a structural concrete main body of a peripheral ring at the outer side of a roof. The steel columns, the inclined web members and the straight web members are connected in advance in a processing field to form a stable steel truss member, and then distributed and transported to an installation field. Before site construction, the position and elevation of the embedded part are checked, and then hoisting is prepared. The steel truss is hoisted by a single machine in a rotary way. When in hoisting, the steel truss should be hoisted equally or the length of the steel wire rope is fixed, and the steel truss is hoisted after the angle is determined. When the steel truss is hung to be 200mm above the locating position, the steel truss is stabilized, and after the steel truss is put in practice, a special angle square is used for checking, and the locating line of the steel truss is adjusted to coincide with the embedded locating axis. Three persons are needed to operate during adjustment, one person moves the truss, one person assists in stabilizing, and the other person detects. The positioning error is controlled within 10 mm. After the steel truss is hung on the embedded plate, the verticality and the levelness of the column are initially adjusted by using a leveling ruler, leveled and fixed. And then two theodolites are used for observing from two sides of the beam at the same time, the adjustment is carried out by means of a jack or wedge-shaped sizing block, and the two theodolites are welded on the embedded part after the vertical and horizontal requirements are confirmed.
Before the steel beam is installed, the cable wind rope should be prepared. The cable rope is firmly connected with the steel beam. One end of the cable rope is fixed on the steel beam, and the other end of the cable rope is fixed on the constructed structural column to be used as temporary fixation to prevent inclination.
The steel column is manually moved to the position of the installed steel column, the top of the installed steel column is provided with a stop block (the height of the stop block exceeds 50mm of the highest position of the section of the steel column) and angle steel is welded at two sides of the steel column in the direction of a steel cable, the steel column is prevented from shifting in the lifting process, then the winch is used for installing the root steel column as shown in the figure (the winch, the supporting point and the placement direction of the steel column are on the same straight line in the lifting process), and after the steel column is installed, all secondary beams connected with the steel column are installed and fully welded.
The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, which is defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a roofing steel truss structure which characterized in that: the structure comprises a plurality of steel trusses which are vertically arranged, steel beams which are fixedly connected between two adjacent steel trusses, and pre-buried assemblies which are positioned in a structural concrete main body of the outer side circumference of a roof, wherein the plurality of steel trusses are arranged at intervals on the circumference of the roof according to the size of the designed roof, the pre-buried assemblies are positioned at the bottom ends of the steel trusses, and the pre-buried assemblies are fixedly connected with the bottom ends of the steel trusses;
the steel truss comprises two steel columns which are vertically distributed, and a plurality of straight web members and inclined web members which are positioned between the steel columns, wherein the plurality of straight web members are horizontally fixed between the steel columns at intervals, the plurality of inclined web members are obliquely fixed between the steel columns at intervals, and the inclined web members and the straight web members are distributed in a staggered manner;
the adjacent straight web members and the adjacent inclined web members are provided with the same connecting point on the steel column;
the steel column and the straight web member are connected by fillet welding, and the steel column and the inclined web member are connected by fillet welding, and the connecting part is provided with a first stiffening plate, and two adjacent right-angle edges of the first stiffening plate are respectively welded on the steel column and the straight web member, or two adjacent right-angle edges of the first stiffening plate are respectively welded on the steel column and the inclined web member.
2. The roofing steel truss structure of claim 1 wherein: the steel truss is connected with the steel beam by angle welding, and the connection point is arranged on a steel column of the steel truss; and a third stiffening plate is arranged at the joint of the steel truss and the steel beam, and two adjacent right-angle sides of the third stiffening plate are welded on the steel column and the steel beam respectively.
3. The roofing steel truss structure of claim 1 wherein: the embedded assembly comprises a plurality of anchor bars embedded into a structural concrete main body of the outer peripheral ring of the roof and embedded plates fixed at the tops of the anchor bars, and the anchor bars are welded or connected with the embedded plates through bolts; the bottom of the steel truss is fixed on the top of the embedded plate.
4. A roofing steel truss structure according to claim 3 wherein: and a plurality of second stiffening plates are arranged between the embedded plates and the steel truss, and two adjacent right-angle sides of the second stiffening plates are welded on the embedded plates and the steel truss respectively.
5. The roofing steel truss structure of claim 4 wherein: a welding mode of open pore plug welding is adopted between the embedded plate and the anchor bar; the size of the embedded plate, the size and the number of the anchor bars and the specification of the second stiffening plate are adjusted according to the actual condition of the site, so that the whole structure is firm and stable.
6. The roofing steel truss structure of any one of claims 1 to 5 wherein: the steel truss, the steel beam, the embedded part and the stiffening plate are all made of Q235B steel; the welding mode among all the parts adopts an E43 type welding rod when manual welding is adopted; when automatic or semi-automatic welding is adopted, H10Mn2 welding wires and corresponding welding fluxes are adopted; when CO2 is used for shielded welding, ER50-3 flux is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581540.8U CN219753455U (en) | 2023-03-22 | 2023-03-22 | Roof steel truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581540.8U CN219753455U (en) | 2023-03-22 | 2023-03-22 | Roof steel truss structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219753455U true CN219753455U (en) | 2023-09-26 |
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ID=88085830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320581540.8U Active CN219753455U (en) | 2023-03-22 | 2023-03-22 | Roof steel truss structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219753455U (en) |
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2023
- 2023-03-22 CN CN202320581540.8U patent/CN219753455U/en active Active
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