CN108104349B - Oblique compression bar truss beam chord beam combined structure and implementation method - Google Patents
Oblique compression bar truss beam chord beam combined structure and implementation method Download PDFInfo
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- CN108104349B CN108104349B CN201711442504.9A CN201711442504A CN108104349B CN 108104349 B CN108104349 B CN 108104349B CN 201711442504 A CN201711442504 A CN 201711442504A CN 108104349 B CN108104349 B CN 108104349B
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- rod
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
- E04B7/105—Grid-like structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/10—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal prestressed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
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- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a beam string beam combined structure of a diagonal compression bar truss and an implementation method. The invention provides a beam string beam combined structure of a diagonal bracing truss, which comprises two ring beams, wherein a prestress bracing column structure is arranged below the ring beams, the prestress bracing column comprises a straight bracing column and diagonal bracing columns, the diagonal bracing columns are connected with the ring beams, a plurality of diagonal bracing rods are arranged between the two ring beams, each diagonal bracing rod comprises an upper diagonal bracing rod, two ends of each upper diagonal bracing rod are connected to the intersection point of the bracing column and the ring beam, all the upper diagonal bracing rods are connected through a penetrating rod piece, and two ends of the penetrating rod piece are connected to the ring beams. The invention also provides an implementation method of the diagonal compression bar truss string beam combined structure. The compression bar truss string beam combined structure provided by the invention improves the integrity and stability of the whole structure, and prevents the structural roof from being damaged due to overlarge bending moment.
Description
Technical Field
The invention relates to a beam string beam combined structure of a diagonal compression bar truss and an implementation method.
Background
In the prior art, the compression bar is mainly applied to bridge structures and is a main supporting structure of the compression bar structural bridge. However, the diagonal strut structure is applied less on the building, and the cable structure is applied more in the building structure, but the cable structure is relatively lighter in weight, and because of large flexibility and low stability, the building roof structure can bear load and has low capability of resisting sudden damage. In the building structure, because the span of the large building structure is larger, the bending moment of the midspan area is large, and the design of the roof structure of the large building is one of the problems to be solved.
Disclosure of Invention
1. The technical problems to be solved are as follows:
the common inhaul cable structure in the prior art has the defects of low stability and the like, the span of a large building roof is larger, the bending moment of the roof midspan region is large, and the requirement on the structure is high.
2. The technical scheme is as follows:
in order to solve the above problems, the invention provides a diagonal brace truss string beam combined structure, which comprises two ring beams 4, wherein a prestress support column structure 1 is arranged below the ring beams 4, the prestress support column 1 comprises a straight support column 2 and a diagonal support column 3, the diagonal support column 3 is connected with the ring beams 1, a plurality of diagonal braces 5 are arranged between the two ring beams 4, the diagonal braces 5 comprise upper diagonal braces 6, two ends of the upper diagonal braces 6 are connected to the intersection points of the support column 1 and the ring beams 4, all the upper diagonal braces 6 are connected through a penetrating rod 9, and two ends of the penetrating rod are connected to the ring beams 4
The penetrating rod piece 9 is perpendicular to the upper oblique compression bar 6.
The oblique compression bar 5 further comprises a downward oblique compression bar 7, two ends of the downward oblique compression bar 7 are connected to the support column 1, and the upper oblique compression bar 6 and the downward oblique compression bar 7 are connected with the middle through a truss 8.
The lower inclined strut 7 is provided with a beam string structure 10 below, the beam string structure 10 comprises a vertical rod 11 and a steel cable 12, the vertical rod 11 is paved below the lower inclined strut 7, and the steel cable 12 connects the two ends of the lower inclined strut 7 with the lower end of the vertical rod 11, so that the two ends of the steel cable 12 are wound and fixed at the two ends of the lower inclined strut 7.
The invention also provides an implementation method of the diagonal-compression-bar truss string beam combined structure, which comprises the following steps: the first step: building a support column 1 of the whole structure; step two, two ring beams 4 are erected; and a third step of: then starting to erect the inclined pressure rod 5; fourth step: then all the upper oblique compression bars 6 are connected through the penetrating rod pieces 9, and two ends of the penetrating rod pieces 9 are connected to the ring beam 4; fifth step: and (5) paving a beam string structure to finish implementation.
In the second step, the ring beam 4 is connected at both ends of the entire structure and the ring beam 4 is grounded at both ends during the erection of the ring beam 4.
3. The beneficial effects are that:
the diagonal compression bar truss and beam string combined structure provided by the invention is formed by combining the prestress column, the diagonal compression bar, the truss and the beam string, the diagonal compression bar structure and the prestress supporting column are used as the supporting structure of the whole structure, the ring beam, the truss and the penetrating rod piece are used for improving the integrity and the stability of the whole structure, and the steel cable is firstly subjected to prestress stretching through the beam string structure, so that the steel cable is stressed, the bending moment of a roof, particularly a midspan region of the roof, is shared, and the structural roof is prevented from being damaged due to overlarge bending moment.
Drawings
Fig. 1 is a top view of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a beam string beam combined structure of a diagonal brace truss, which comprises two ring beams 4, wherein a prestress support column structure 1 is arranged below the ring beams 4, the prestress support column 1 comprises a straight support column 2 and a diagonal support column 3, the diagonal support column 3 is connected with the ring beams 1, a plurality of diagonal braces 5 are arranged between the two ring beams 4, each diagonal brace 5 comprises an upper diagonal brace 6, two ends of each upper diagonal brace 6 are connected to the intersection point of the support column 1 and the ring beam 4, all the upper diagonal braces 6 are connected through a penetrating rod piece 9, and two ends of the penetrating rod piece are connected to the ring beam 4.
The lower end supporting structure of the diagonal-compression-bar truss string beam combined structure is a supporting column 1, the supporting column 1 is a prestress column and comprises a supporting straight column 2 and a supporting diagonal column 3, and the height of the supporting column is gradually decreased from the middle to two sides.
The prestress columns on two sides of the diagonal compression bar truss string beam combined structure are connected through two ring beams 4, so that the overall stability of the prestress columns and the whole structure is improved.
All the inclined compression rods 5 are connected by a penetrating rod piece 9, and the direction of the inclined compression rods is vertical to the upper inclined compression rod 6, so that the overall stability of the structure is improved.
As shown in fig. 2, the diagonal compression bar 5 further includes a diagonal compression bar 7, two ends of the diagonal compression bar 7 are connected to the support column 1, and the diagonal compression bar 6 and the diagonal compression bar 7 are connected to the middle by a truss 8. Each inclined pressure rod 5 is composed of an upper inclined pressure rod 6 and a lower inclined pressure rod 7, and the upper inclined pressure rod 6 and the lower inclined pressure rod 7 are connected through a truss 8 so as to improve the overall stability of the pressure rods. The two ends of the compression bar are connected to the prestress column.
As shown in fig. 2, a beam string structure 10 is disposed below the lower oblique compression bar 7, the beam string structure 10 includes a vertical bar 11 and a steel cable 12, the vertical bar 11 is laid below the lower oblique compression bar 7, and the steel cable 12 connects two ends of the lower oblique compression bar 7 and a lower end of the vertical bar 11, so that two ends of the steel cable 12 are wound and fixed at two ends of the lower oblique compression bar 7. The beam string structure 10 is erected below the downward inclined pressure rod 7 and is used for sharing the bending moment of the whole roof, particularly the midspan area of the roof, and preventing the whole structure from being damaged due to overlarge bending moment.
The invention discloses an implementation method of a diagonal compression bar truss string beam combined structure, which comprises the following steps: the first step: building a support column 1 of the whole structure; step two, two ring beams 4 are erected; and a third step of: then starting to erect the inclined pressure rod 5; fourth step: then all the upper oblique compression bars 6 are connected through the penetrating rod pieces 9, and two ends of the penetrating rod pieces 9 are connected to the ring beam 4; fifth step: and (5) paving a beam string structure to finish implementation.
The method comprises the following specific steps: the first step: setting up the support column 1 of the whole structure, firstly setting up the straight support column 2 in the process of setting up the support column 1, then setting up the inclined support column 3, setting up all support columns according to the method, and gradually reducing the heights of the support columns from the middle to the two sides; step two, erecting two ring beams 4, wherein the ring beams 4 are connected with the upper ends of the support columns 1 so as to connect all the support columns; and a third step of: then, starting to erect the inclined strut 5, firstly erecting the lower inclined strut 7, connecting the two ends of the lower inclined strut 7 to the support column 1 to enable the lower inclined strut to bear force, then erecting the upper inclined strut 6, connecting the two ends of the upper inclined strut 6 to the intersection point of the support column 1 and the ring beam 4, and connecting the upper inclined strut 6 and the lower inclined strut 7 with the middle part by a truss 8; fourth step: then all the upper oblique compression bars 6 are connected through the penetrating rod pieces 9, and two ends of the penetrating rod pieces 9 are connected to the ring beam 4; fifth step: the method comprises the steps of paving a string beam structure, paving a vertical rod 11 at the lower end of a downward-inclined pressure rod 7, connecting the two ends of the downward-inclined pressure rod 7 and the lower end of the vertical rod 11 by a steel cable 12, winding and fixing the two ends of the steel cable 12 at the two ends of the downward-inclined pressure rod 7, tensioning the steel cable 12 by prestress, and tightening and stressing the steel cable 12 by adjusting the winding and fixing positions at the two ends to finish implementation.
In the second step, the ring beam 4 is connected at both ends of the entire structure and the ring beam 4 is grounded at both ends during the erection of the ring beam 4.
The foregoing embodiments are merely illustrative of the technical ideas of the present invention, and the scope of the present invention is not limited thereto, and any modification made on the basis of the technical scheme according to the technical ideas provided by the present invention falls within the scope of the present invention. The technology not related to the invention can be realized by the prior art.
Claims (4)
1. The utility model provides a diagonal bracing truss beam chord composite structure, includes two ring beam (4), its characterized in that: the ring beam (4) is connected at two ends of the whole structure, the ring beam (4) is grounded at two ends, the lower part of the ring beam (4) is a prestressed support column (1), the prestressed support column (1) comprises a straight support column (2) and an inclined support column (3), the inclined support column (3) is connected with the ring beam (4), a plurality of inclined press rods (5) are arranged between the two ring beams (4), each inclined press rod (5) comprises an upper inclined press rod (6), two ends of each upper inclined press rod (6) are connected to the intersection point of the prestressed support column (1) and the ring beam (4), all the upper inclined press rods (6) are connected through a penetrating rod (9), two ends of the penetrating rod (9) are connected to the ring beam (4), each inclined press rod (5) further comprises a lower inclined press rod (7), two ends of each lower inclined press rod (7) are connected to the prestressed support column (1), each upper inclined press rod (6) and each lower inclined press rod (7) are connected with the middle part through a lower inclined press rod (8), each lower inclined press rod (7) is provided with a steel wire rope (10), each lower chord beam (11) is arranged on the inclined press rod (11), the steel cable (12) connects the two ends of the lower inclined pressure rod (7) and the lower end of the vertical rod (11), so that the two ends of the steel cable (12) are wound and fixed at the two ends of the lower inclined pressure rod (7).
2. The diagonal strut truss chord member combination structure according to claim 1, wherein: the penetrating rod piece (9) is perpendicular to the upper oblique pressing rod (6).
3. A method of implementing the diagonal strut-truss beam chord member combination structure of claim 1 or 2, comprising the steps of: the first step: the method comprises the steps of building a prestressed support column (1) of the whole structure, firstly building a straight support column (2) in the process of building the prestressed support column (1), and then building oblique support columns (3), wherein the heights of the support columns are gradually decreased from the middle to the two sides according to the method; step two, erecting two ring beams (4), wherein the ring beams (4) are connected with the upper ends of the prestressed support columns (1) so as to connect all the support columns; and a third step of: then, starting to erect the inclined strut (5), firstly erecting the lower inclined strut (7), connecting the two ends of the lower inclined strut (7) to the prestress support column (1) to enable the lower inclined strut to bear force, erecting an upper inclined strut (6), connecting the two ends of the upper inclined strut (6) to the intersection point of the prestress support column (1) and the ring beam (4), and connecting the upper inclined strut (6) and the lower inclined strut (7) with the middle part by a truss (8); fourth step: then all the upper inclined compression bars (6) are connected through the penetrating rod pieces (9), and two ends of the penetrating rod pieces (9) are connected to the ring beams (4); fifth step: lay string roof beam structure, lay montant (11) in the lower extreme of declivity depression bar (7) earlier, then link together the both ends of declivity depression bar (7) and the lower extreme of montant (11) with cable wire (12), make the both ends winding of cable wire (12) fix in the both ends department of declivity depression bar (7), then carry out the stretch-draw of prestressing force to cable wire (12), make it tighten up the atress through the winding fixed part at regulation both ends, accomplish the implementation.
4. A method as claimed in claim 3, wherein: in the second step, the ring beam (4) is connected at both ends of the whole structure and the ring beam (4) is grounded at both ends during the erection of the ring beam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442504.9A CN108104349B (en) | 2017-12-27 | 2017-12-27 | Oblique compression bar truss beam chord beam combined structure and implementation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442504.9A CN108104349B (en) | 2017-12-27 | 2017-12-27 | Oblique compression bar truss beam chord beam combined structure and implementation method |
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| Publication Number | Publication Date |
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| CN108104349A CN108104349A (en) | 2018-06-01 |
| CN108104349B true CN108104349B (en) | 2023-10-17 |
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| CN112982673B (en) * | 2021-02-09 | 2022-09-16 | 清华大学建筑设计研究院有限公司 | Device and method for reducing curve prestress tension loss |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697397A (en) * | 1985-08-10 | 1987-10-06 | Shimizu Construction Co. Ltd. | Trussed girder, roof framing using the trussed girder and method of constructing the roof framing of a building using the trussed girder |
| CN105863145A (en) * | 2015-12-24 | 2016-08-17 | 济南匠夫万自动化科技有限公司 | String structure, string beam and building |
| CN207934292U (en) * | 2017-12-27 | 2018-10-02 | 南京工程学院 | One kind is baroclined bar truss beam string composite structure |
-
2017
- 2017-12-27 CN CN201711442504.9A patent/CN108104349B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697397A (en) * | 1985-08-10 | 1987-10-06 | Shimizu Construction Co. Ltd. | Trussed girder, roof framing using the trussed girder and method of constructing the roof framing of a building using the trussed girder |
| CN105863145A (en) * | 2015-12-24 | 2016-08-17 | 济南匠夫万自动化科技有限公司 | String structure, string beam and building |
| CN207934292U (en) * | 2017-12-27 | 2018-10-02 | 南京工程学院 | One kind is baroclined bar truss beam string composite structure |
Non-Patent Citations (1)
| Title |
|---|
| 沈忠贤.大跨度预应力钢屋盖体系设计、施工全过程分析.《万方数据 学位论文》.2004,第12-14页. * |
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