CN213358939U - Three-cable super-large span prestress string truss structure - Google Patents
Three-cable super-large span prestress string truss structure Download PDFInfo
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- CN213358939U CN213358939U CN202021254649.3U CN202021254649U CN213358939U CN 213358939 U CN213358939 U CN 213358939U CN 202021254649 U CN202021254649 U CN 202021254649U CN 213358939 U CN213358939 U CN 213358939U
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Abstract
The utility model belongs to the technical field of truss type building structures, in particular to a three-cable super-large span prestress string-stretching truss structure, which comprises a truss main structure, wherein the truss main structure comprises a plurality of prestress string-stretching trusses, a plurality of contact trusses are fixedly connected above the prestress string-stretching trusses, two ends of the contact trusses are respectively connected with a gable, and the bottoms of the gable and the prestress string-stretching trusses are provided with column feet; the single prestressed string-stretching truss comprises a frame body, wherein a transversely arranged main prestressed stay cable is connected to the lower side of the frame body, and the positions of two ends, connected with the frame body, of the main prestressed stay cable are fixedly connected with negative prestressed stay cables respectively. The utility model provides a novel prestressed tension string truss structure building is striden to three cable super large can more effectual transmission internal force, increases the bulk rigidity of truss, and overall structure rigidity distributes more evenly, improves the degree of safety of structure, reduces the material quantity simultaneously, reduces material cost.
Description
Technical Field
The utility model belongs to the technical field of truss-like building structure, specifically indicate a prestressing force string truss structure is striden to three cable superlars.
Background
The super-large span arch type prestressed truss structure building is a necessary infrastructure for large-scale coal yards, ore yards and other places, and has the main functions of saving energy and protecting environment, and preventing the places such as the coal yard yards and the like from spreading harmful dust to the surrounding environment.
The truss system in the existing large-span prestressed truss string structure mostly adopts the form of a single main cable, as shown in fig. 1, the form is suitable for a span L of 120 m-200 m, the single cable mode in the span range is better in economy, when the span is more than 200m, the rigidity of the trusses at the two ends of the cable is smaller, and excessive deformation is easy to generate, one prestressed cable is tensioned in the steel structure truss string structure to improve the mid-span rigidity of the main structure of the truss string pipe truss, the internal force of the cable is tensile force under the constant load action, so that the truss is upwards jacked by a supporting rod in the tensioning process, and an inverted arch phenomenon is generated, because the rigidity of the truss at the end of the cable is smaller, the cable can generate downwards-bending deformation under the action of cable force, the deformation can reduce the horizontal force action on the cable, so that the structure is unfavorable, the process is shown in fig. 2, and further influences the section size of a rod piece, if the load capacity is to be, it is difficult to meet the demands of the current construction market by increasing the material cost by a large amount.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel prestressing force string truss structure building is striden to three cable superlars can more effectual transmission internal force, increases the bulk rigidity of truss, and overall structure rigidity distributes more evenly, improves the degree of safety of structure, reduces the material quantity simultaneously, reduces material cost.
In order to achieve the technical purpose, the utility model adopts the technical scheme that:
a three-cable super-large span prestress string-stretching truss structure comprises a truss main structure, wherein the truss main structure comprises a plurality of prestress string-stretching trusses, a plurality of contact trusses are fixedly connected above the prestress string-stretching trusses, two ends of each contact truss are respectively connected with a gable, and column feet are arranged at the bottoms of the gable and the prestress string-stretching trusses;
the single prestressed string truss comprises a frame body, wherein a transversely arranged main prestressed stay cable is connected to the lower side of the frame body, five main cable support columns are fixedly arranged between the main prestressed stay cable and the frame body at uniform intervals, the positions of two main cable support columns positioned on two sides in the five main cable support columns and the fixed connection position of the frame body are respectively and fixedly connected with the upper end of an auxiliary prestressed stay cable, the lower ends of the two auxiliary prestressed stay cables are respectively and fixedly connected with the frame body at the same side as the auxiliary prestressed stay cable, and the two auxiliary prestressed stay cables and the frame body are respectively and fixedly provided with two auxiliary cable support columns.
As a further optimized scheme, the overall vector-span ratio range of the single prestressed truss string is 1/3.5-1/5.
As a further optimized scheme, the length of a single prestressed truss string is 229 meters, the height of the single prestressed truss string is 50.5 meters, and the overall vector-span ratio is 1/4.53.
As a further optimized scheme, the number of the contact trusses is ten.
As a further optimized scheme, the gable includes eight upright columns, one transverse fixing column is fixedly connected to the eight upright columns, two ends of the transverse fixing column are fixedly connected to contact trusses located at two ends of the ten contact trusses, and the eight contact trusses located in the middle of the ten contact trusses are respectively and fixedly connected with the eight upright columns in a one-to-one correspondence manner.
As a further optimized scheme, a plurality of rectangular grids are formed by separating a plurality of prestressed truss-string trusses through the plurality of connection trusses, and cross supporting columns are arranged at intervals of 40-45 meters between the rectangular grids among the prestressed truss-string trusses.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
the integral structure is formed by connecting the prestressed string-stretching trusses into a whole through the connection trusses, then connecting the gable wall and the integral structure together through the connection trusses, directly transmitting wind load and temperature load borne by the prestressed string-stretching truss structure to the connection trusses through the gable wall, transmitting the load to the prestressed string-stretching trusses through the connection trusses, and finally transmitting the load to the foundation at the bottom through the column feet.
Three prestressed cables are tensioned at the lower side of the prestressed string truss, the three prestressed cables are respectively a main prestressed cable and two auxiliary prestressed cables, under the action of load, the main prestressed cable and the two auxiliary prestressed cables have the function of reducing the adverse influence of horizontal load on a foundation, the internal force of the main prestressed cable and the internal force of the two auxiliary prestressed cables are tensile forces, in the process of tensioning the main prestressed cable, the main cable support column is used for upwards lifting the truss, so that the reverse arching phenomenon is generated, because the left end and the right end are acted by the two auxiliary prestressed cables, the rigidity of the truss at the end part of the main prestressed cable is greatly enhanced, under the combined action of the three cable forces, the rigidity of the prestressed string truss line of the prestressed string is uniform, the prestressed loss of the prestressed string truss caused by the deformation of the shoulder part of the main structure of the prestressed string truss is reduced, under the action of wind load, the two auxiliary cables can effectively improve the rigidity of the shoulder part of the structure, can effectively transmit the internal force, increases the integral rigidity of the prestressed tension string truss, ensures that the rigidity of the integral structure is more uniformly distributed, improves the safety of the structure, reduces the material consumption and reduces the material cost.
Drawings
Fig. 1 is a schematic structural diagram of a prior art large-span prestressed truss string structure;
FIG. 2 is a stress variation state diagram of a large-span prestressed truss string structure in the prior art;
FIG. 3 is a schematic structural diagram of a prestressed truss string structure in the embodiment;
FIG. 4 is a schematic structural force bearing diagram of the prestressed tension-string truss in the embodiment;
FIG. 5 is a diagram of the stress variation state of the prestressed truss string in the embodiment;
FIG. 6 is a perspective view of the three-cable super-span prestressed truss string structure in the embodiment;
in the attached drawing, 1-a prestressed string truss, 2-a connection truss, 3-a gable wall, 4-a column base, 5-a frame body, 6-a main prestressed inhaul cable, 7-a main cable supporting column, 8-an auxiliary prestressed inhaul cable, 9-an auxiliary cable supporting column, 10-an upright column, 11-a transverse fixing column and 12-a cross supporting column.
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 fig. 1 to 6, the three-cable super-large span prestressed truss structure comprises a truss main structure, wherein the truss main structure comprises a plurality of prestressed truss chords 1, a plurality of contact trusses 2 are fixedly connected above the plurality of prestressed truss chords 1, two ends of the plurality of contact trusses 2 are respectively connected with a gable 3, and column feet 4 are arranged at the bottoms of the gable 3 and the prestressed truss chords 1;
the single prestressed string-stretching truss 1 comprises a frame body 5, a transversely arranged main prestressed cable 6 is connected to the lower side of the frame body 5, five main cable support columns 7 are fixedly arranged between the main prestressed cable 6 and the frame body 5 at uniform intervals, the positions, located on two sides, of the five main cable support columns 7, fixedly connected with the upper ends of auxiliary prestressed cables 8 respectively and the positions, fixedly connected with the frame body 5, of the two main cable support columns 7 are fixedly connected with the frame body 5 at the same side as the auxiliary prestressed cable 8 respectively, and two auxiliary cable support columns 9 are fixedly arranged between the two auxiliary prestressed cables 8 and the frame body 5 respectively.
The integral structure is formed by connecting prestressed string-stretching trusses 1 into a whole through contact trusses 2, connecting a gable 3 with the integral structure through the contact trusses 2, directly transmitting wind load and temperature load borne by the prestressed string-stretching trusses 1 to the contact trusses 2 through the gable 3, transmitting the load to the prestressed string-stretching trusses 1 through the contact trusses 2, and finally transmitting the load to a foundation at the bottom through column feet 4.
As shown in figure 3, three prestressed cables are tensioned at the lower side of a prestressed string truss 1, the three prestressed cables are respectively a main prestressed cable 6 and two auxiliary prestressed cables 8, under the action of load, the main prestressed cable 6 and the two auxiliary prestressed cables 8 have the function of reducing the adverse effect of horizontal load on a foundation, the internal force of the main prestressed cable 6 and the internal force of the two auxiliary prestressed cables 8 are tensile forces, in the process of tensioning the main prestressed cable 6, the main cable support column 7 is used for upwards jacking force on the truss, so that the phenomenon of inverted arch is generated, the rigidity of the truss at the end part of the main prestressed cable 6 is greatly enhanced due to the action of the two auxiliary prestressed cables 8 at the left end and the right end, the linear rigidity of the prestressed string truss 1 is uniform under the combined action of the three cable forces, and the prestressed loss caused by the deformation of a shoulder generating structure of the main structure of the tensioned string truss 1 is reduced, as shown in fig. 4 and 5, under the action of wind load, an upward suction force is generated on the structure, the rigidity of the shoulder part of the structure can be effectively improved by the two auxiliary cables, the internal force can be more effectively transmitted, the overall rigidity of the prestressed string truss 1 is improved, the rigidity distribution of the overall structure is more uniform, the safety of the structure is improved, the material consumption is reduced, and the material cost is reduced.
In the embodiment, the integral vector-span ratio range of the single prestressed truss string 1 is 1/3.5-1/5, and the structural proportion of the ratio is stable, so that the use requirement is met.
In the embodiment, the length of a single prestressed truss string 1 is 229 meters, the height of the single prestressed truss string is 50.5 meters, and the overall vector-span ratio is 1/4.53.
In this embodiment, ten contact trusses 2 are provided, which provides better stability.
In this embodiment, the gable 3 includes eight columns 10, one transverse fixing column 11 is fixedly connected to the eight columns 10, two ends of the transverse fixing column 11 are fixedly connected to the contact trusses 2 located at two ends of the ten contact trusses 2, and the eight contact trusses 2 located in the middle of the ten contact trusses 2 are respectively and fixedly connected to the eight columns 10 in a one-to-one correspondence manner, so that the gable has good stability.
In the embodiment, a plurality of rectangular grids are formed by separating a plurality of prestressed truss chords 1 by a plurality of connecting trusses 2, and cross support columns 12 are arranged at intervals of 40-45 meters between the rectangular grids of the prestressed truss chords 1, so that the stability of the structure is enhanced.
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 (6)
1. The three-cable super-large span prestressed string truss structure is characterized by comprising a truss main structure, wherein the truss main structure comprises a plurality of prestressed string trusses, a plurality of contact trusses are fixedly connected above the prestressed string trusses, two ends of each contact truss are respectively connected with a gable, and column feet are arranged at the bottoms of the gable and the prestressed string trusses;
the single prestressed string truss comprises a frame body, wherein a transversely arranged main prestressed stay cable is connected to the lower side of the frame body, five main cable support columns are fixedly arranged between the main prestressed stay cable and the frame body at uniform intervals, the positions of two main cable support columns positioned on two sides in the five main cable support columns and the fixed connection position of the frame body are respectively and fixedly connected with the upper end of an auxiliary prestressed stay cable, the lower ends of the two auxiliary prestressed stay cables are respectively and fixedly connected with the frame body at the same side as the auxiliary prestressed stay cable, and the two auxiliary prestressed stay cables and the frame body are respectively and fixedly provided with two auxiliary cable support columns.
2. The prestressed truss structure with three cables and ultra-large span as claimed in claim 1, wherein the overall vector-span ratio of the prestressed truss is 1/3.5-1/5.
3. The prestressed truss structure with three cables and ultra-large span of claim 2, wherein the length of a single prestressed truss is 229 meters, the height of the single prestressed truss is 50.5 meters, and the overall vector-span ratio is 1/4.53.
4. The three-cable super-span prestressed truss string structure according to claim 3, wherein said contact truss is ten.
5. The prestressed truss structure with a triple rope and a super span as claimed in claim 4, wherein said gable includes eight columns, one transverse fixing column is fixedly connected to each of said eight columns, two ends of said transverse fixing column are fixedly connected to two contact trusses located at two ends of said ten contact trusses, and eight contact trusses located in the middle of said ten contact trusses are respectively and fixedly connected to said eight columns in a one-to-one correspondence manner.
6. The three-cable super-large span prestressed truss string structure of claim 1, wherein cross supporting columns are arranged at intervals of 40-45 meters in rectangular grids among a plurality of prestressed truss strings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254649.3U CN213358939U (en) | 2020-07-01 | 2020-07-01 | Three-cable super-large span prestress string truss structure |
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| CN202021254649.3U CN213358939U (en) | 2020-07-01 | 2020-07-01 | Three-cable super-large span prestress string truss structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463766A (en) * | 2021-07-20 | 2021-10-01 | 中国航空国际建设投资有限公司 | Large-span arched truss string system and powder covered building |
| CN113565214A (en) * | 2021-09-26 | 2021-10-29 | 华北科技学院 | Rapid Assembly's emergent engineering is with string cable membrane steel construction building system |
-
2020
- 2020-07-01 CN CN202021254649.3U patent/CN213358939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463766A (en) * | 2021-07-20 | 2021-10-01 | 中国航空国际建设投资有限公司 | Large-span arched truss string system and powder covered building |
| CN113565214A (en) * | 2021-09-26 | 2021-10-29 | 华北科技学院 | Rapid Assembly's emergent engineering is with string cable membrane steel construction building system |
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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 |
Denomination of utility model: A Three Cable Super Large Span Prestressed String Truss Structure Effective date of registration: 20230530 Granted publication date: 20210604 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 | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210604 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2023230000045 |
|
| PC01 | Cancellation 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: A three cable ultra large span prestressed tension string truss structure Granted publication date: 20210604 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: Harbin Jianchuang Steel Structure Co.,Ltd. Registration number: Y2024230000037 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |