CN214574650U - An economical large-span chord truss structure - Google Patents
An economical large-span chord truss structure Download PDFInfo
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- CN214574650U CN214574650U CN202021254667.1U CN202021254667U CN214574650U CN 214574650 U CN214574650 U CN 214574650U CN 202021254667 U CN202021254667 U CN 202021254667U CN 214574650 U CN214574650 U CN 214574650U
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Abstract
本实用新型属于桁架式建筑结构技术领域，具体是指一种经济的大跨张弦管桁架结构，包括多榀拱式预应力张弦桁架，单榀拱式预应力张弦桁架固定设有主拉索，主拉索和拱式预应力张弦桁架之间连接五根竖直支撑杆，主拉索和拱式预应力张弦桁架之间两侧设有两倾斜支撑杆，主拉索两侧和拱式预应力张弦桁架两侧之间连接有副拉索，联系桁架和多榀拱式预应力张弦桁架交叉连接产生有矩形格，矩形格固定安装有交叉支撑柱，联系桁架连接有山墙，山墙和拱式预应力张弦桁架底部设有柱脚支座。本实用新型的目的在于提供一种经济的大跨张弦管桁架结构，能够更有效的传递内力，整体结构刚度分布更均匀，有效的抵抗风荷载作用，同时减小材料用量，降低材料成本。
The utility model belongs to the technical field of truss-type building structures, in particular to an economical large-span chord truss structure, comprising a multi-arch type prestressed chord truss, and a single-arch prestressed chord truss is fixed with a main Five vertical support rods are connected between the stay cable, the main stay cable and the arch-type prestressed tension string truss. There are auxiliary cables connected between the two sides of the side and arch-type prestressed chord truss, and the cross-connection between the truss and the multi-arch prestressed chord truss produces a rectangular lattice, and the rectangular lattice is fixedly installed with cross-support columns, and the truss is connected. There are gables, gables and arch-type prestressed string trusses are provided with column foot supports at the bottom. The purpose of the utility model is to provide an economical large-span chord tube truss structure, which can transmit internal force more effectively, distribute the rigidity of the overall structure more uniformly, effectively resist the effect of wind load, and simultaneously reduce the amount of materials and the cost of materials.
Description
Technical Field
The utility model belongs to the technical field of truss-like building structure, specifically indicate an economical string pipe truss structure of striding greatly.
Background
The large-span chord pipe truss type building is a necessary infrastructure for large-scale coal yards, ore yards and other places, and has the main functions of energy conservation and environmental protection, and prevents the places such as the coal yard yards and the like from spreading harmful dust to the surrounding environment.
A main truss system in the existing large-span prestressed pipe truss structure mostly adopts a single main cable form, and a prestressed cable is tensioned on a lower chord of an arch truss to increase the mid-span rigidity of the main structure of the truss string structure and reduce downward deformation of the structure under the action of vertical force.
This kind of form is fit for the less structure of wind load, and when wind load was great, the truss rigidity of cable both ends position department was less, produced too big anti-arch deformation easily under the effect of wind-suction, made the structure atress draw and press to change and lead to the cross-section increase, made the structure atress fairly unreasonable, easily damaged to prior art, if the anti-wind load of increasing large-span prestressing force pipe truss, need increase the support body material quantity of large-span prestressing force pipe truss, increased material cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an economical string pipe truss structure is opened to stride greatly, can more effectual transmission internal force, increases the bulk rigidity of truss, and overall structure rigidity distributes more evenly, and effectual wind load effect of resisting reduces the material quantity simultaneously, reduction material cost.
In order to achieve the technical purpose, the utility model adopts the technical scheme that:
an economical large-span truss string pipe truss structure comprises a plurality of arch type prestress truss string frames, a main stay cable horizontally arranged is fixedly arranged on a lower chord of each arch type prestress truss string frame, five vertical support rods vertically arranged are fixedly connected between the main stay cable and the lower chord of each arch type prestress truss string frame, the distance between the five vertical support rods is the same, the positions, connected with the main stay cable, of two vertical support rods at two ends of the five vertical support rods are respectively and fixedly connected with the lower ends of inclined support rods, the upper ends of the two inclined support rods are fixedly connected to the lower chord of each arch type prestress truss string frame at the middle position between the two adjacent vertical support rods, the positions, connected with the two inclined support rods and the main stay cable, of the two inclined support rods are respectively and fixedly connected with the upper ends of auxiliary stay cables, the lower ends of the two auxiliary stay cables are respectively and fixedly connected to the lower chord of the arch type prestress truss string frame corresponding to the lower chord of the arch type prestress truss string frame at the same side of the two inclined support rods and the main stay cables The above step (1);
the connecting truss structure is characterized in that a plurality of connecting trusses are fixedly connected to the plurality of arched prestress string-stretching trusses, a rectangular lattice is formed by connecting the plurality of connecting trusses and the plurality of arched prestress string-stretching trusses, cross supporting columns are fixedly installed at four inner corners of the rectangular lattice, two ends of each connecting truss are fixedly connected with a gable respectively, and column foot supports are arranged at the bottoms of the gable and the arched prestress string-stretching trusses.
As a further improved scheme, a plurality of rectangular grids are arranged between two adjacent arched prestressed truss chords, and the cross supporting columns are arranged on the plurality of rectangular grids between every two adjacent arched prestressed truss chords at intervals of sixty meters in the plurality of arched prestressed truss chords.
As a further improved scheme, the arch type prestress string-stretching truss is composed of steel pipe trusses, and the steel pipes of the arch type prestress string-stretching truss are connected in a welding mode.
As a further improved scheme, the connecting position of the lower ends of the two auxiliary stay cables and the arch-shaped prestressed string-stretching truss is close to the bottom of the arch-shaped prestressed string-stretching truss.
As a further improvement scheme, the overall vector-span ratio (H/L) of the arch type prestressed truss string main structure is between 1/5 and 1/3.5.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
the large-span chord-type pipe truss structure is characterized in that arch-type prestressed chord-type trusses are connected into a whole through connection trusses, a gable is connected with the integral structure of each arch-type prestressed chord-type truss through the connection trusses, cross support columns are used for strengthening the integral structural stability of the economic large-span chord-type pipe truss structure, wind load and temperature load borne by the large-span chord-type pipe truss structure are directly transmitted to the connection trusses through the gable, then transmitted to column foot supports through cross support frames and finally transmitted to a foundation;
the lower chord of the arch type prestress string-stretching truss is provided with the main stay cable and the two auxiliary stay cables, the upward anti-arching phenomenon of the structure can be effectively reduced under the action of wind load, and meanwhile, the pull-connection end of the auxiliary stay cable is closer to the support, so that the horizontal thrust can be better reduced, and the calculation difficulty is reduced; the main cable has the functions of reducing the horizontal thrust of the structure and increasing the vertical rigidity; the two auxiliary stay cables are used for increasing the rigidity of the shoulder of the main structure of the arch type prestress string truss, so that the structure can effectively resist wind load, the bending moment of a shoulder rod piece is reduced, internal force can be effectively transmitted through the structure, the overall rigidity of the truss is increased, the rigidity of the overall structure is distributed more uniformly, the wind load can be effectively resisted, the material consumption is reduced, and the material cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a single arched prestressed truss string in the present embodiment;
fig. 2 is a perspective view of an economical large span chord pipe truss structure in the embodiment.
In the attached drawing, 1-arch prestressed string-stretching truss, 2-lower chord, 3-main cable, 4-vertical support bar, 5-inclined support bar, 6-auxiliary cable, 7-connection truss, 8-cross support column, 9-gable and 10-column base support.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
As shown in figures 1 and 2 together, an economical large-span truss string structure comprises a plurality of arch-type prestressed truss strings 1, a horizontally arranged main cable 3 is fixedly arranged on a lower chord 2 of the single arch-type prestressed truss string 1 (the lower chord 2 is a common structure of the arch-type prestressed truss string 1 in the prior art), five vertically arranged vertical support rods 4 are fixedly connected between the main cable 3 and the lower chord 2 of the arch-type prestressed truss string 1, the distance between the five vertical support rods 4 is the same, the main cable 3 and the arch-type prestressed truss string 1 can be well supported, the positions of two vertical support rods 4 at two ends of the five vertical support rods 4 connected with the main cable 3 are respectively and fixedly connected with the lower ends of inclined support rods 5, the upper ends of the two inclined support rods 5 are fixedly connected with the lower chord 2 of the arch-type prestressed truss string 1 at the middle position between the two adjacent vertical support rods 4, the connecting positions of the two inclined supporting rods 5 and the main stay cable 3 are respectively and fixedly connected with the upper ends of the auxiliary stay cables 6, and the lower ends of the two auxiliary stay cables 6 are respectively and fixedly connected with the lower parts of the lower chords 2 of the arch type prestress string-stretching truss 1 corresponding to the same sides of the two auxiliary stay cables 6;
a plurality of connection trusses 7 are fixedly connected to the multi-arch type prestress string-stretching truss 1, the connection trusses 7 and the multi-arch type prestress string-stretching truss 1 are connected to form a rectangular grid, cross support columns 8 are fixedly installed at four inner corners of the rectangular grid, two ends of each connection truss 7 are respectively and fixedly connected with a gable 9, and column foot supports 10 are arranged at the bottom of each gable 9 and the bottom of the arch type prestress string-stretching truss 1.
Each arch type prestress string-stretching truss 1 is connected into a whole through a connection truss 7, a gable 9 is connected with the integral structure of each arch type prestress string-stretching truss 1 through the connection truss 7, a cross support column 8 is used for strengthening the integral structure stability of the economic large-span string-stretching pipe truss structure, the wind load and the temperature load borne by the large-span string-stretching pipe truss structure are directly transmitted to the connection truss 7 through the gable 9, then transmitted to a column foot support 10 through a cross support frame and finally transmitted to a foundation;
the lower chord 2 of the arch type prestressed string-stretching truss 1 is provided with the main stay cable 3 and the two auxiliary stay cables 6, the upward anti-arch phenomenon of the structure can be effectively reduced under the action of wind load, and meanwhile, the pull-joint end of the auxiliary stay cable 6 is closer to the support, so that the horizontal thrust can be better reduced, and the calculation difficulty is reduced; the main cable has the functions of reducing the horizontal thrust of the structure and increasing the vertical rigidity; the two auxiliary stay cables 6 are used for increasing the rigidity of the shoulder of the main structure of the arch type prestress string truss 1, so that the structure can effectively resist wind load, the bending moment of a shoulder rod piece is reduced, internal force can be effectively transmitted through the structure, the overall rigidity of the truss structure is increased, the rigidity of the overall structure is distributed more uniformly, the wind load can be effectively resisted, the material consumption is reduced, and the material cost is reduced.
In the embodiment, ten connection trusses 7 are arranged on the plurality of arched prestress string-stretching trusses 1, eleven rectangular lattices are arranged between every two adjacent arched prestress string-stretching trusses 1, and the cross support column 8 is arranged on one eleven rectangular lattices between every two adjacent arched prestress string-stretching trusses 1 at intervals of sixty meters in the plurality of arched prestress string-stretching trusses 1, so that a stable space whole is formed on the premise of reducing the material usage amount, the whole rigidity is increased, and the whole stability of the structure is ensured.
In this embodiment, the arch-type prestressed truss string 1 is formed by steel pipe trusses, and the steel pipes of the arch-type prestressed truss string 1 are connected in a welding manner, so that the arch-type prestressed truss string has better stability.
In this embodiment, the connection position between the lower ends of the two pairs of guys 6 and the arch-type prestressed truss string 1 is close to the bottom of the arch-type prestressed truss string 1.
The two auxiliary stay cables 6 meet the clearance requirement according to the actual engineering condition, and the positions of the cable heads of the two auxiliary stay cables 6, which are pulled and connected as much as possible, are more favorable as the column base support 10 is closer, so that the horizontal thrust is reduced.
In the embodiment, the overall vector-span ratio (H/L) of the main structure of the arch type prestressed truss string 1 is 1/5-1/3.5, and the arch type prestressed truss string has good stability.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. An economical large-span truss string pipe truss structure is characterized by comprising a plurality of arch type prestress truss strings, wherein a horizontally arranged main stay cable is fixedly arranged on a lower chord of each arch type prestress truss string, five vertically arranged vertical support rods are fixedly connected between the main stay cable and the lower chord of each arch type prestress truss string truss, the distance between the five vertical support rods is the same, the positions, connected with the main stay cable, of two vertical support rods at two ends of the five vertical support rods are respectively and fixedly connected with the lower ends of inclined support rods, the upper ends of the two inclined support rods are fixedly connected with the lower chord of the arch type prestress truss string truss at the middle position between the two adjacent vertical support rods, and the positions, connected with the main stay cable, of the two inclined support rods are respectively and fixedly connected with the upper ends of an auxiliary stay cable, the lower ends of the two auxiliary stay cables are respectively and fixedly connected with the lower parts of the lower chord members of the arch type prestress string-stretching truss corresponding to the same side of the auxiliary stay cables;
the connecting truss structure is characterized in that a plurality of connecting trusses are fixedly connected to the plurality of arched prestress string-stretching trusses, a rectangular lattice is formed by connecting the plurality of connecting trusses and the plurality of arched prestress string-stretching trusses, cross supporting columns are fixedly installed at four inner corners of the rectangular lattice, two ends of each connecting truss are fixedly connected with a gable respectively, and column foot supports are arranged at the bottoms of the gable and the arched prestress string-stretching trusses.
2. The economical large-span truss-string pipe structure according to claim 1, wherein a plurality of rectangular cells are arranged between two adjacent arched prestressed truss-string trusses, and the cross support columns are arranged on the plurality of rectangular cells between every two adjacent arched prestressed truss-string trusses in the plurality of arched prestressed truss-string trusses at intervals of sixty meters.
3. The economical long-span truss string pipe structure as recited in claim 1, wherein the arch type prestressed truss string structure is composed of steel pipe trusses, and the steel pipes of the arch type prestressed truss string structure are connected in a welded manner.
4. The economical long-span truss string pipe structure as claimed in claim 1, wherein the connection position of the lower ends of the two secondary guys and the arch-type prestressed truss string truss is close to the bottom of the arch-type prestressed truss string truss.
5. The economic large-span truss-string pipe structure as claimed in any one of claims 1 to 4, wherein the overall vector-span ratio (H/L) of the arch type prestressed truss-string main structure is between 1/5 and 1/3.5.
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| CN202021254667.1U CN214574650U (en) | 2020-07-01 | 2020-07-01 | An economical large-span chord truss structure |
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| CN202021254667.1U CN214574650U (en) | 2020-07-01 | 2020-07-01 | An economical large-span chord truss structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115897805A (en) * | 2022-11-30 | 2023-04-04 | 中南建筑设计院股份有限公司 | Linear cross truss string space structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115897805A (en) * | 2022-11-30 | 2023-04-04 | 中南建筑设计院股份有限公司 | Linear cross truss string space structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An economical large-span tension string truss structure Effective date of registration: 20230530 Granted publication date: 20211102 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2023230000045 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20211102 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2023230000045 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An economical large-span cable-stayed truss structure Granted publication date: 20211102 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2024230000037 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20211102 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2024230000037 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An economical large-span tension string truss structure Granted publication date: 20211102 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2025980041056 |