CN114250909A - A Quick-Installation Low-Level Prestressed Rigid Frame Beam - Google Patents
A Quick-Installation Low-Level Prestressed Rigid Frame Beam Download PDFInfo
- Publication number
- CN114250909A CN114250909A CN202210018354.3A CN202210018354A CN114250909A CN 114250909 A CN114250909 A CN 114250909A CN 202210018354 A CN202210018354 A CN 202210018354A CN 114250909 A CN114250909 A CN 114250909A
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- China
- Prior art keywords
- rigid frame
- cable
- connecting plate
- stay
- main beam
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- 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
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A low-level prestressed rigid frame beam capable of being installed quickly belongs to the field of steel structures. The invention solves the problems of over high steel consumption and the like of the traditional steel structure. Connecting two rigid frame beams into a whole through end plates; and stiffening ribs are arranged on the rigid frame beam corresponding to the positions of the stay cables and the stay rods, and the thickness of each stiffening rib is not less than the thickness of the web plate of the rigid frame beam plus 2 mm. The whole inhaul cable is in a zigzag shape, wherein one end of the inhaul cable is an inhaul cable adjusting end, and the other end of the inhaul cable is an inhaul cable fixing end; the stay cable is hinged with the rigid frame beam through the first connecting plate and connected with the support rod through the cable clamp. The two support rods form a V shape and are arranged between the rigid frame beam and the inhaul cable in the vertical space; the support rod is hinged with the rigid frame beam through a second connecting plate and is connected with the cable clamp through the lug plate. The ear plate is welded on the upper part of the cable clamp; the first connecting plate and the second connecting plate are strongly welded to the bottom flange of the rigid frame beam. The invention can save steel, reduce the steel amount of the whole structure, save the manufacturing period and accelerate the construction.
Description
Technical Field
The invention relates to building structure design and steel structure design, belongs to the field of steel structures, and particularly relates to a low-level prestressed rigid frame beam capable of being quickly installed.
Background
The steel structure of the portal rigid frame light house has the characteristics of simple stress, clear force transmission path, quick member manufacturing, convenience for industrial processing, short construction period and the like, so that the portal rigid frame light house steel structure is widely applied to industrial and civil buildings such as industrial, commercial and cultural entertainment public facilities and the like. The portal rigid frame is taken as a traditional structural system, and the upper structure of the structure comprises a main rigid frame, an enclosure structure and the like. The main steel structure weight of the portal rigid frame is on the main rigid frame, so that the steel quantity of the main rigid frame is well controlled, the engineering cost can be saved, and the economic benefit of a project is improved. Meanwhile, for engineering construction, the length of a project construction period may also determine the success or failure of the project.
Disclosure of Invention
The invention aims to develop a low-level prestressed rigid frame beam which is quickly installed, reduce the section of the rigid frame beam, save steel, reduce the steel amount of an integral structure, save the manufacturing period and accelerate the construction.
A quickly-installed low-level prestress rigid frame beam comprises a rigid frame main beam 1, a stay cable 2, a support rod 3, a cable clamp 4, a first connecting plate 5, an end plate 6, a second connecting plate 7, an ear plate 8, a stay cable adjusting end 9, a stay cable fixing end 10 and a stiffening rib 11; connecting two main beams 1 of the rigid frame into a whole; stiffening ribs 11 are arranged on the rigid frame main beam 1 corresponding to the positions of the stay ropes 2 and the stay bars 3; the whole inhaul cable 2 is in a zigzag shape, wherein one end of the inhaul cable is provided with an inhaul cable adjusting end 9, and the other end of the inhaul cable is provided with an inhaul cable fixing end 10; two ends of the stay cable 2 are hinged with the rigid frame main beam 1 through a first connecting plate 5, and the middle position of the stay cable 2 is connected with the stay bar 3 through a cable clamp 4; the two support rods 3 form a V shape and are arranged between the rigid frame main beam 1 and the inhaul cable 2 in the vertical space; the stay bar 3 is hinged with the rigid frame main beam 1 through a second connecting plate 7 and is connected with the cable clamp 4 through an ear plate 8; the first connecting plate 5 and the second connecting plate 7 are all welded to the lower flange of the rigid frame main beam in a forced mode, and the thickness of the first connecting plate and the thickness of the second connecting plate are not smaller than that of the lower flange of the rigid frame main beam.
The rigid frame main beam 1 is hot-rolled H-shaped steel.
The bottom end of the stay bar 3 is provided with an ear plate 8, and the ear plate 8 is welded on the upper part of the cable clamp 4.
The thickness of the stiffening rib 11 is not less than +2 mm of the web plate thickness of the main beam of the rigid frame.
The thickness of the first connecting plate 5 and the second connecting plate 7 is not less than that of the lower flange of the rigid frame beam.
The invention utilizes the beam string structure theory, fully exerts the tensile strength of the inhaul cable, and is connected with the rigid frame beam through the V-shaped stay bar to form an integral stressed structure. Compared with the common portal rigid frame structure, the invention can reduce the section of the rigid frame beam, save steel and reduce the steel amount of the whole structure. Meanwhile, the rigid frame beam provided by the invention adopts hot-rolled section steel, so that the manufacturing period can be saved, and the construction can be accelerated.
Drawings
FIG. 1 is a schematic view of a quick-install, low-level prestressed steel frame beam according to an example of the present application;
FIG. 2 is a schematic view of the connection between the stay and the cable in this patent;
fig. 3 is a large drawing of the cable.
In the figure: the rigid frame girder, cable 2, vaulting pole 3, cable clamp 4, first connecting plate 5, end plate 6, second connecting plate 7, otic placode 8, the adjustable end 9 of cable, cable stiff end 10, stiffening rib 11.
Detailed Description
Referring to fig. 1, 2 and 3, the invention shows a quick-mounting low-level prestressed steel frame beam, which comprises a steel frame main beam, a stay 2, a stay rod 3, a cable clamp 4, a first connecting plate 5, an end plate 6, a second connecting plate 7, an ear plate 8, a stay adjustable end 9, a stay fixed end 10 and a stiffening rib 11.
The two rigid frame main beams are connected into a whole through the end plate 6;
stiffening ribs 11 are arranged on the rigid frame main beam corresponding to the positions of the stay ropes 2 and the stay bars 3, and the thickness of each stiffening rib 11 is not less than the thickness of a web plate of the rigid frame main beam by +2 mm;
the whole inhaul cable 2 is in a zigzag shape, wherein one end of the inhaul cable is provided with an inhaul cable adjusting end 9, and the other end of the inhaul cable is provided with an inhaul cable fixing end 10;
the stay cable 2 is hinged with the rigid frame main beam through a first connecting plate 5 and is connected with the stay bar 3 through a cable clamp;
the two support rods 3 form a V shape and are arranged between the rigid frame main beam and the inhaul cable 2 in the vertical space;
the stay bar 3 is hinged with the rigid frame main beam through a second connecting plate 7 and is connected with the cable clamp 4 through an ear plate 8;
the ear plate 8 is welded on the upper part of the cable clamp 4;
the first connecting plate 5 and the second connecting plate 7 are welded to the lower flange of the rigid frame main beam with equal strength, and the thicknesses of the first connecting plate and the second connecting plate are not smaller than that of the lower flange of the rigid frame main beam;
the rigid frame main beam, the stay cable 2 and the stay bar 3 are assembled on the ground, and the stay cable 2 can be integrally hoisted for use after being properly tensioned through the stay cable adjusting end 9.
The tension force of the stay cable 2 is not required to be applied by a special prestress tension device.
Claims (5)
1. The utility model provides a low level prestressing force rigid frame roof beam of quick installation which characterized in that: the steel frame main beam comprises a steel frame main beam (1), a stay cable (2), a stay rod (3), a cable clamp (4), a first connecting plate (5), an end plate (6), a second connecting plate (7), an ear plate (8), a stay cable adjusting end (9), a stay cable fixing end (10) and a stiffening rib (11); connecting two rigid frame main beams (1) into a whole; stiffening ribs (11) are arranged on the rigid frame main beam (1) corresponding to the positions of the stay cables (2) and the stay rods (3); the whole inhaul cable (2) is in a fold line shape, wherein one end of the inhaul cable is provided with an inhaul cable adjusting end (9), and the other end of the inhaul cable is provided with an inhaul cable fixing end (10); two ends of the stay cable (2) are hinged with the rigid frame main beam (1) through a first connecting plate (5), and the middle position of the stay cable (2) is connected with the stay bar (3) through a cable clamp (4); the two support rods (3) form a V shape and are arranged between the rigid frame main beam (1) and the inhaul cable (2) in the vertical space; the stay bar (3) is hinged with the rigid frame main beam (1) through a second connecting plate (7) and is connected with the cable clamp (4) through an ear plate (8); the first connecting plate (5) and the second connecting plate (7) are all welded to the lower flange of the rigid frame main beam (1) in a forced mode, and the thickness of the first connecting plate and the thickness of the second connecting plate are not smaller than the thickness of the lower flange of the rigid frame main beam (1).
2. The quick install, low level prestressed steel frame beam of claim 1, wherein: the rigid frame main beam (1) is hot-rolled H-shaped steel.
3. The quick install, low level prestressed steel frame beam of claim 1, wherein: the bottom end of the stay bar (3) is provided with an ear plate (8), and the ear plate (8) is welded on the upper part of the cable clamp (4).
4. The quick install, low level prestressed steel frame beam of claim 1, wherein: the thickness of the stiffening rib (11) is not less than the thickness of the web plate of the rigid frame main beam (1) by +2 mm.
5. The quick install, low level prestressed steel frame beam of claim 1, wherein: the thickness of the first connecting plate (5) and the second connecting plate (7) is not less than the thickness of the lower flange of the main beam of the rigid frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210018354.3A CN114250909A (en) | 2022-01-07 | 2022-01-07 | A Quick-Installation Low-Level Prestressed Rigid Frame Beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210018354.3A CN114250909A (en) | 2022-01-07 | 2022-01-07 | A Quick-Installation Low-Level Prestressed Rigid Frame Beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114250909A true CN114250909A (en) | 2022-03-29 |
Family
ID=80796318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210018354.3A Pending CN114250909A (en) | 2022-01-07 | 2022-01-07 | A Quick-Installation Low-Level Prestressed Rigid Frame Beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114250909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517531A (en) * | 2022-04-06 | 2022-05-20 | 中建八局第四建设有限公司 | Cable-supported grid structure pre-overlong V-shaped support device and installation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799708Y (en) * | 2005-03-17 | 2006-07-26 | 杭州天元建筑设计研究院有限公司 | Prestressed steel-structured portal rigid frame |
| CN201406758Y (en) * | 2009-05-15 | 2010-02-17 | 江苏科技大学 | A light steel portal frame |
| CN106978883A (en) * | 2017-03-31 | 2017-07-25 | 天津城建大学 | A kind of folding beam string |
| WO2021128161A1 (en) * | 2019-12-26 | 2021-07-01 | 广州建筑股份有限公司 | Method and apparatus for integrated and elevated construction of arched structure |
| CN217027740U (en) * | 2022-01-07 | 2022-07-22 | 北京首钢国际工程技术有限公司 | Quick-mounting low-level prestress rigid frame beam |
-
2022
- 2022-01-07 CN CN202210018354.3A patent/CN114250909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799708Y (en) * | 2005-03-17 | 2006-07-26 | 杭州天元建筑设计研究院有限公司 | Prestressed steel-structured portal rigid frame |
| CN201406758Y (en) * | 2009-05-15 | 2010-02-17 | 江苏科技大学 | A light steel portal frame |
| CN106978883A (en) * | 2017-03-31 | 2017-07-25 | 天津城建大学 | A kind of folding beam string |
| WO2021128161A1 (en) * | 2019-12-26 | 2021-07-01 | 广州建筑股份有限公司 | Method and apparatus for integrated and elevated construction of arched structure |
| CN217027740U (en) * | 2022-01-07 | 2022-07-22 | 北京首钢国际工程技术有限公司 | Quick-mounting low-level prestress rigid frame beam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517531A (en) * | 2022-04-06 | 2022-05-20 | 中建八局第四建设有限公司 | Cable-supported grid structure pre-overlong V-shaped support device and installation method |
| CN114517531B (en) * | 2022-04-06 | 2024-03-15 | 中建八局第四建设有限公司 | Pre-overlength V-shaped support device with cable-supported grid structure and installation method |
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Application publication date: 20220329 |