CN103195210B - Pre-stressing assembly type corrugated web plate holding-on steel beam - Google Patents

Pre-stressing assembly type corrugated web plate holding-on steel beam Download PDF

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Publication number
CN103195210B
CN103195210B CN201310138272.3A CN201310138272A CN103195210B CN 103195210 B CN103195210 B CN 103195210B CN 201310138272 A CN201310138272 A CN 201310138272A CN 103195210 B CN103195210 B CN 103195210B
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web
waviness curve
prestressed cable
girder steel
curve
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CN103195210A (en
Inventor
张爱林
赵亮
刘学春
倪真
赵越
叶全喜
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China Railway Construction Group Co Ltd
Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
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Beijing University of Technology
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Abstract

The invention discloses a pre-stressing assembly type corrugated web plate holding-on steel beam belonging to the technical field of building profiles. The steel beam is formed by assembling two corrugated-groove steel beams by bolts and a prestressed cable, web plates of the two corrugated-groove steel beams are in butt joint in a holding-on manner and are assembled and connected at the bolt holes in the web plates by adopting the bolts; the prestressed cable passes through the assembled web plates and prestressed cable holes in beam-end plates, is tensioned, and then is fixed on the beam-end plates of the corrugated-groove steel beams; section openings of the corrugated-groove steel beams are formed by upper wing flanges, lower wing flanges and the web plates; the sections of the web plates are shaped like uniform and non-uniform periodically repeated waves; and the beam-end plates are vertical to the upper wing flanges, the lower wing flanges and the web plates, and are arranged at two ends of the beams. The innovation type pre-stressing assembly type steel beam is suitable for an assembly type steel structure system and particularly suitable for a multi-high-layer assembly type steel structure system, and has the advantages of light weight, strong bearing force, large span and the like compared with the conventional assembly beams.

Description

Prestressing force assembling corrugated web occlusion girder steel
Technical field
The present invention relates to a kind of prestressing force assembling corrugated web occlusion girder steel, belong to architectural shape
Technical field.
Background technology
At present, the how high-rise assembling type steel structure system of large span is the Main way of system of steel residential structure development.Traditional housing building of steel-structure have employed a large amount of Site Weldings when constructing, speed of application is slow, seriously polluted to environment, the most important thing is that the quality of weld seam should not control, have a strong impact on the security performance of building, assembling type steel structure system effectively overcomes the shortcoming of traditional steel house.In assembling type steel structure system, the on-site consolidation node of Liang Heliang is a key issue.
In existing assembling type steel structure system, what usually adopt is that two channel-section steels carry out assembled, and the web docking of two channel-section steels, is connected by bolt, form assembling H profile steel.But in this connecting method, shearing passes to web by bolt, and web is plain plate, so the steel using amount of required Number of Bolts and web is very large, shear-carrying capacity has much room for improvement.Meanwhile, when being applied in the assembling type steel structure system of large span, traditional assembled steel component will increase height and the area of beam section significantly, adds steel using amount.
As can be seen here, it is not very desirable for traditional Steel section member being used in effect among assembling type steel structure system, not only affects the stress performance of component, and needs to consume a large amount of steel, produces unnecessary waste.In sum, the only way which must be passed that the novel primary structure member being applied to assembling type steel structure system is the development of assembling type steel structure system is created.
Summary of the invention
The present invention proposes a kind of prestressing force assembling corrugated web occlusion girder steel belonging to architectural shape technical field, its object is to provide a kind of with low cost, what stress performance was superior is applicable to assembling type steel structure system, especially the assembling girder steel of the how high-rise assembling type steel structure system of large span.
The technical solution used in the present invention is as follows:
A kind of prestressing force assembling corrugated web occlusion girder steel is assembled by bolt and prestressed cable by two wave groove girder steels; The web occlusion docking of described two wave groove girder steels, assembly connection is carried out at the bolt hole place of web by adopting bolt, described prestressed cable, through the web after assembling and the prestressed cable hole on beam end plate, is fixed on the beam end plate of wave groove girder steel after stretch-draw by ground tackle;
Described wave groove girder steel, its section shape of the mouth as one speaks is made up of top flange, web, bottom flange and beam end plate, and described top flange is parallel with bottom flange, and described web is vertically between top flange and bottom flange;
The section of described web is the ripple that even or uneven periodicity repeats, and this ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge shape waviness curve or sine curve; Described web offers bolt hole and prestressed cable hole, bolt hole is arranged on whole web, and prestressed cable hole is arranged on the bias plate portion of web;
Described top flange and bottom flange are steel plate, and a limit parallel with web in steel plate is wavy curve, and the shape of waviness curve is identical with the ripple section configuration of web; Described web is positioned over the waviness curve limit place of top flange and bottom flange, and the ripple section of web is connected with the waviness curve limit of bottom flange is identical with top flange;
Described beam end plate is steel plate, and with web, top flange is vertical with bottom flange, is positioned at the two ends of wave groove girder steel, and beam end plate and top flange, web and bottom flange are weldingly connected; Beam end plate leaves prestressed cable hole.
Described rectangle waviness curve is arc chord angle rectangle waviness curve, and described trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and described wedge shape waviness curve is arc chord angle wedge shape waviness curve.
The inclination angle of the trapezoidal oblique line section of described trapezoidal waviness curve, the trapezoidal waviness curve of arc chord angle is 20 °-90 °, and the inclination angle of the Wedge slant section of described wedge shape waviness curve, arc chord angle wedge shape waviness curve is 20 °-90 °.
Described web and be respectively one-side-filled angle weld between top flange and bottom flange.
Corrugation density and the height of described web can change according to force request.
The trapezoidal waviness curve of described arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt numerical control bending technology to make, and sine curve adopts numerical control rolling techniques to make.
Described prestressed cable is prestressed cable, or is presstressed reinforcing steel, and the prestressed cable through prestressed cable hole reserved on web and beam end plate is one or more;
Described prestressed cable linear be recess upwards, linear shape can change according to force request.
The present invention proposes a kind of prestressing force assembling corrugated web occlusion girder steel being applicable to assembling type steel structure system, the stress performance of assembled steel component is significantly improved by the interlocking and prestressing technique introducing component, compare and the assembling girder steel in traditional assembling type steel structure system, the present invention has following advantage:
The present invention adopts prestressing technique, effectively improve the supporting capacity of assembling occlusion girder steel, ensure that stressed reasonability, quoting of prestressing technique, can under the prerequisite ensureing assembled steel load bearing beam ability, effectively alleviate the deadweight of assembling girder steel, improve the span of assembling girder steel, the present invention is more suitable among large span and how high-rise assembling type steel structure system.Meanwhile, prestressed cable interts the web place being arranged on assembling girder steel, can improve the tensile bearing capacity in face, assembled steel Liangping.
Steel beam web plate of the present invention is assembling corrugated steel, the excellent out of plane stiffness of corrugated steel, anti-flexing supporting capacity and higher fatigue strength can be effectively utilized, compared with the plain plate be assembled into channel-section steel, when thickness is identical, its shear-carrying capacity and anti-outer deformability are all significantly increased.
Girder steel of the present invention holds occlusion shape, shear bearing capacity in the plane of effective increase assembling girder steel, shearing in the plane of traditional assembling girder steel relies on bolt to bear and transmit, the present invention relies on the interlocking of girder steel to make whole girder steel to bear the shearing in plane, effectively improves the shear resistant capacity of assembling girder steel.
Therefore, adopt prestressing force assembling corrugated web of the present invention to be engaged girder steel and can play above-mentioned three kinds of technical advantages simultaneously, compared with other like products, its mechanical property is significantly increased, and effectively promotes that large span and how high-rise assembling type steel structure system are in the development of China.
Meanwhile, the present invention adopts full automatic welding connection technology and specialty aim frock clamp, can guarantee the accurate location between web and the edge of a wing, and seam track is consistent, easily realizes standardization, can realize many large-scale production, effectively enhance productivity.The present invention propose prestressing force assembling corrugated web occlusion girder steel in, it is optimize the relation between section mechanical property and product steel using amount to a greater extent that section combines maximum feature, make its be more tending towards rationalize and scientific.Prestressing technique quote the supporting capacity that can improve girder steel, alleviate girder steel deadweight, increase the span of girder steel.Therefore, the present invention has the excellent stress performance such as high-bearing capacity and high rigidity, is a kind of very good structural shapes material.
Compared with traditional assembling girder steel, the present invention improves the supporting capacity of assembling girder steel significantly, decreases steel using amount, add span, reduce construction costs, large-scale industrial production and on-the-spot quick assembled type can be realized simultaneously, reduce construction period.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is element of construction exploded view of the present invention;
Fig. 3 is the schematic diagram of wave groove girder steel;
Fig. 4 is the unit decomposition figure of wave groove girder steel;
Fig. 5 is the rectangle ripple curve synoptic diagram of web section;
Fig. 6 is the trapezoidal ripple curve synoptic diagram of web section;
Fig. 7 is the wedge shape ripple curve synoptic diagram of web section;
Fig. 8 is the arc chord angle rectangle ripple curve synoptic diagram of web section;
Fig. 9 is the trapezoidal ripple curve synoptic diagram of arc chord angle of web section;
Figure 10 is the arc chord angle wedge shape ripple curve synoptic diagram of web section;
Figure 11 is the sine curve waviness curve schematic diagram of web section;
Figure 12 is the floor map of wave groove girder steel;
Figure 13 is the floor map of prestressing force assembling corrugated web occlusion girder steel;
In figure: 1-wave groove girder steel, 2-top flange, 3-web, 4-bottom flange, 5-bolt hole, 6-bolt, 7-prestressed cable, 8-prestressed cable hole, 9-ground tackle, 10-beam end plate.
Specific implementation
The present invention is further illustrated by reference to the accompanying drawings below by embodiment.
As shown in accompanying drawing 1-4, the prestressing force assembling corrugated web occlusion girder steel that the present invention proposes is assembled by bolt 6 and prestressed cable 7 by two wave groove girder steels 1; The web occlusion docking of described two wave groove girder steels 1, assembly connection is carried out at bolt hole 5 place of web 3 by adopting bolt 6, described prestressed cable 7, through the web 3 after assembling and the prestressed cable hole 8 on beam end plate 10, is fixed on the beam end plate 10 of wave groove girder steel 1 by ground tackle 9 after stretch-draw.
As shown in accompanying drawing 3-4, wave groove girder steel 1, its section shape of the mouth as one speaks is by top flange 2, web 3, bottom flange 4 and beam end plate 10 form, and top flange 2 is parallel with bottom flange 4, web 3 is vertical between top flange 2 and bottom flange 4, described web 3 offers bolt hole 5 and prestressed cable hole 8, bolt hole 5 is arranged on whole web 3, and prestressed cable hole 8 is arranged on the bias plate portion of web 3.
As shown in Figure 5-11, the section of described web 3 is the ripple that even or uneven periodicity repeats, this ripple section is rectangle waviness curve, or be arc chord angle rectangle waviness curve, or be trapezoidal waviness curve, or be the trapezoidal waviness curve of arc chord angle, or be wedge shape waviness curve, or be arc chord angle wedge shape waviness curve, or be sine curve waviness curve.
As shown in accompanying drawing 3-4 and accompanying drawing 12-13, described top flange 2 and bottom flange 4 are steel plate, a limit parallel with web 3 in steel plate is wavy curve, the shape of waviness curve is identical with the ripple section configuration of web 3, web 3 is positioned over the waviness curve limit place of top flange 2 and bottom flange 4, the ripple section of web 3 and top flange 2 coincide with the waviness curve limit of bottom flange 4 and are connected, web 3 and be respectively one-side-filled angle weld between top flange 2 and bottom flange 4; With web 3, top flange 2 is vertical with bottom flange 4, is positioned at the two ends of wave groove girder steel 1, and beam end plate 10 is weldingly connected with top flange 2, web 3 and bottom flange 4, beam end plate 10 leaves prestressed cable hole 8.
Wherein, described trapezoidal waviness curve, the inclination angle of the trapezoidal oblique line section of the trapezoidal waviness curve of arc chord angle is 20 °-90 °, described wedge shape waviness curve, the inclination angle of the Wedge slant section of arc chord angle wedge shape waviness curve is 20 °-90 °, corrugation density and the height of described web 3 can change according to force request, the trapezoidal waviness curve of described arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt numerical control bending technology to make, sine curve adopts numerical control rolling techniques to make, described prestressed cable 7 is prestressed cable, or be presstressed reinforcing steel, prestressed cable 7 through prestressed cable hole 8 reserved on web 3 and beam end plate 10 is one or more.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.

Claims (8)

1. a prestressing force assembling corrugated web occlusion girder steel, be is characterized in that: be assembled by bolt (6) and prestressed cable (7) by two wave groove girder steels (1); The web occlusion docking of described two wave groove girder steels (1), assembly connection is carried out at bolt hole (5) place of web (3) by adopting bolt (6), described prestressed cable (7), through the web (3) after assembling and the prestressed cable hole (8) on beam end plate (10), is fixed on the beam end plate (10) of wave groove girder steel (1) by ground tackle (9) after stretch-draw;
Described wave groove girder steel (1), its section shape of the mouth as one speaks is made up of top flange (2), web (3), bottom flange (4) and beam end plate (10), described top flange (2) is parallel with bottom flange (4), and described web (3) is vertically positioned between top flange (2) and bottom flange (4);
The section of described web (3) is the ripple that even or uneven periodicity repeats, and this ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge shape waviness curve or sine curve; Described web (3) offers bolt hole (5) and prestressed cable hole (8), bolt hole (5) is arranged on whole web (3), and prestressed cable hole (8) are arranged on the bias plate portion of web (3);
Described top flange (2) and bottom flange (4) are steel plate, and a limit parallel with web (3) in steel plate is wavy curve, and the shape of waviness curve is identical with the ripple section configuration of web (3); Described web (3) is positioned over the waviness curve limit place of top flange (2) and bottom flange (4), and the ripple section of web (3) is connected with the waviness curve limit of bottom flange (4) is identical with top flange (2);
Described beam end plate (10) is steel plate, with web (3), top flange (2) is vertical with bottom flange (4), be positioned at the two ends of wave groove girder steel (1), beam end plate (10) and top flange (2), web (3) and bottom flange (4) are weldingly connected; Beam end plate (10) leaves prestressed cable hole (8).
2. prestressing force assembling corrugated web occlusion girder steel according to claim 1, it is characterized in that: described rectangle waviness curve is arc chord angle rectangle waviness curve, described trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and described wedge shape waviness curve is arc chord angle wedge shape waviness curve.
3. prestressing force assembling corrugated web occlusion girder steel according to claim 1, it is characterized in that: the inclination angle of the trapezoidal oblique line section of described trapezoidal waviness curve, the trapezoidal waviness curve of arc chord angle is 20 °-90 °, the inclination angle of the Wedge slant section of described wedge shape waviness curve, arc chord angle wedge shape waviness curve is 20 °-90 °.
4. prestressing force assembling corrugated web according to claim 1 occlusion girder steel, is characterized in that: described web (3) and be respectively one-side-filled angle weld between top flange (2) and bottom flange (4).
5. prestressing force assembling corrugated web occlusion girder steel according to claim 1, is characterized in that: corrugation density and the height of described web (3) can change according to force request.
6. prestressing force assembling corrugated web occlusion girder steel according to claim 2, it is characterized in that: the trapezoidal waviness curve of described arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt numerical control bending technology to make, sine curve adopts numerical control rolling techniques to make.
7. prestressing force assembling corrugated web occlusion girder steel according to claim 1, it is characterized in that: described prestressed cable (7) is prestressed cable, or be presstressed reinforcing steel, the prestressed cable (7) through web (3) and the upper reserved prestressed cable hole (8) of beam end plate (10) is one or more;
8. prestressing force assembling corrugated web according to claim 1 occlusion girder steel, is characterized in that: described prestressed cable (7) linear be recess upwards, linear shape can change according to force request.
CN201310138272.3A 2013-04-19 2013-04-19 Pre-stressing assembly type corrugated web plate holding-on steel beam Active CN103195210B (en)

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CN103485478A (en) * 2013-09-13 2014-01-01 北京工业大学 Prestress assembly type corrugation web holding-on combination beam applied to multi-story and high-rise buildings
CN103899021A (en) * 2014-03-20 2014-07-02 北京工业大学 Assembly type steel frame meshing splicing system for rigid joint
CN103882940A (en) * 2014-03-20 2014-06-25 北京工业大学 Modularized multi-story and high-rise assembly type steel structure meshed steel beam frame system
CN103866851A (en) * 2014-03-20 2014-06-18 北京工业大学 Multi-high-rise assembly steel structure occluded steel beam prestress eccentric support system
CN103866854A (en) * 2014-03-20 2014-06-18 北京工业大学 Assembly type steel structure prestressing force center supporting, engaging and splicing system with rigidly connected joints
CN103882984A (en) * 2014-03-20 2014-06-25 北京工业大学 Pitch point rigid connection assembly type steel structure occlusion splicing system
CN103866850A (en) * 2014-03-20 2014-06-18 北京工业大学 Multi-high-rise assembly steel structure occluded steel beam frame central support system
CN103866856A (en) * 2014-03-20 2014-06-18 北京工业大学 Center support occlusion splicing system of assembly type steel structure with rigid-connection nodes
CN103882979A (en) * 2014-03-24 2014-06-25 北京工业大学 Assembly type steel structure eccentric supporting system spliced by pre-stressing force in meshed mode
CN103882959A (en) * 2014-03-24 2014-06-25 北京工业大学 Rigid joint assembly type steel structure center supporting system spliced by pre-stressing force in meshed mode
CN103882963A (en) * 2014-03-24 2014-06-25 北京工业大学 Assembly type steel structure system spliced by pre-stressing force in meshed mode

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Effective date of registration: 20180911

Address after: 100000 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing

Co-patentee after: China Railway Construction Group Beijing Engineering Co., Ltd.

Patentee after: Zhongtie Construction Group Corporation Limited

Address before: No. 100, Chaoyang District flat Park, Beijing, Beijing

Patentee before: Beijing University of Technology