CN103255877B - Prefabricated PC honeycombed ribbing web steel beam - Google Patents
Prefabricated PC honeycombed ribbing web steel beam Download PDFInfo
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- CN103255877B CN103255877B CN201310139520.6A CN201310139520A CN103255877B CN 103255877 B CN103255877 B CN 103255877B CN 201310139520 A CN201310139520 A CN 201310139520A CN 103255877 B CN103255877 B CN 103255877B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 94
- 239000010959 steel Substances 0.000 title claims abstract description 94
- 239000003351 stiffener Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The present invention relates to a kind of prefabricated PC honeycombed ribbing web steel beam, belong to architectural shape technical field.It is docked by two prestressing force corrugated web ribbing steel channel beam webs, formed by bolts assemblies.Prestressing force corrugated web ribbing steel channel beam is by top flange, web, bottom flange, prestressed cable, transverse stiffener, ground tackle and beam end plate composition.The section shape of the mouth as one speaks of prestressing force wave groove girder steel is made up of the upper and lower edge of a wing and web, the section of web is the waveform that even or uneven periodicity repeats, transverse stiffener is vertically between two edges of a wing and web, beam end plate is parallel to the two ends that transverse stiffener is arranged on beam, and prestressed cable is fixed on beam end plate by ground tackle after stretch-draw.The advantages such as the present invention is that one is applicable to assembling type steel structure system, and especially the innovative prefabricated PC girder steel of large span how high-rise assembling type steel structure system, compared with traditional assembling beam, has from heavy and light, and the high and span of bearing capacity is large.
Description
Technical field
The present invention relates to a kind of prefabricated PC honeycombed ribbing web steel beam, belong to architectural shape technical field.
Background technology
At present, assembling type steel structure system is the important directions 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 of Liang Heliang is a problem needing primary study.
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.
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 prefabricated PC honeycombed ribbing web steel beam 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.
Technical scheme of the present invention is as follows:
A kind of prefabricated PC honeycombed ribbing web steel beam, formed by bolts assemblies by two prestressing force corrugated web ribbing steel channel beams, two prestressing force corrugated web ribbing steel channel beam web docking, at web place by adopting bolt to carry out assembly connection at bolt hole place;
Described prestressing force corrugated web ribbing steel channel beam, comprises top flange, web, bottom flange, prestressed cable, transverse stiffener, ground tackle and beam end plate; Its section shape of the mouth as one speaks is by top flange, and web and bottom flange form, 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;
Described top flange and bottom flange are steel plate, and web is overall between top flange and bottom flange, and the waviness curve of web outermost along its length and top flange flush with a sideline along its length, bottom flange and be connected;
Described transverse stiffener is steel plate, and in the side of web, between top flange and bottom flange, interval is arranged, and is connected respectively with web, top flange with bottom flange vertical welding; Transverse stiffener is provided with prestressed cable hole;
Described beam end plate is steel plate, placement parallel with transverse stiffener, is positioned at the beam-ends of prestressing force corrugated web ribbing steel channel beam, and beam end plate and top flange, web and bottom flange are weldingly connected; Beam end plate leaves prestressed cable hole;
Described prestressed cable, through prestressed cable hole reserved on transverse stiffener and beam end plate, is fixed in by ground tackle on the beam end plate at prestressing force corrugated web ribbing steel channel beam two ends after stretch-draw.
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 or be presstressed reinforcing steel, the prestressed cable through prestressed cable hole reserved on transverse stiffener and beam end plate is one or more;
Described prestressed cable linear be recess upwards, linearly can to change according to force request.
The present invention proposes a kind of prefabricated PC honeycomb web steel beam being applicable to assembling type steel structure system, the stress performance of prefabricated member is significantly improved by introducing double corrugated web plate and prestressing technique, compare and the assembling girder steel in traditional assembling type steel structure system, the present invention has following advantage:
Steel beam web plate of the present invention is the assembling of two corrugated webs, be equivalent to double corrugated web plate, effectively can improve stability and the supporting capacity of component, especially Torsion bearing capacity, the layout of web is cellular, can obtain optimal result in the total bearing capacity of component.
Steel beam web plate of the present invention presents waviness curve type, the out of plane stiffness that can effectively utilize corrugated steel excellent, anti-flexing supporting capacity and higher fatigue strength, compared with the plain plate be assembled into channel-section steel, when thickness is identical, shear-carrying capacity and anti-outer deformability are all significantly increased.
Girder steel of the present invention have employed two prestressed cables and is arranged symmetrically with, effectively improve the supporting capacity of assembling 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, increase the span of assembling girder steel, the present invention is more suitable among large span and how high-rise assembling type steel structure system.
Therefore, adopt prefabricated PC honeycombed ribbing web steel beam of the present invention can play above-mentioned three kinds of technical advantages simultaneously, compared with other like products, its mechanical property is significantly increased, quoting of prestressing technique significantly can cut down steel using amount, increase the span of assembling girder steel, effectively promote that large span and how high-rise assembling type steel structure system are in the development of China.
Simultaneously, in the prefabricated PC honeycombed ribbing web steel beam that the present invention proposes, prestressing technique quote the supporting capacity that can improve girder steel, alleviate girder steel deadweight, increase the span of girder steel, 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.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.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.
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 prestressing force corrugated web ribbing steel channel beam;
Fig. 4 is the unit decomposition figure of prestressing force corrugated web ribbing steel channel beam;
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 prestressing force corrugated web ribbing steel channel beam;
Figure 13 is the floor map of prefabricated PC honeycombed ribbing web steel beam;
In figure: 1-prestressing force corrugated web ribbing steel channel beam, 2-top flange, 3-web, 4-bottom flange, 5-bolt hole, 6-bolt, 7-prestressed cable, 8-transverse stiffener, 9-ground tackle, 10-beam end plate, 11-prestressed cable hole.
Detailed description of the invention
The present invention is further illustrated by reference to the accompanying drawings below by embodiment.
As shown in accompanying drawing 1-2, the prefabricated PC honeycombed ribbing web steel beam that the present invention proposes is assembled by bolt 6 by two prestressing force corrugated web ribbing steel channel beams 1, two prestressing force corrugated web ribbing steel channel beam 1 web docking, at web place by adopting bolt 6 to carry out assembly connection at bolt hole 5 place.
As shown in accompanying drawing 3-4, prestressing force corrugated web ribbing steel channel beam 1 comprises top flange 2, web 3, bottom flange 4, prestressed cable 7, transverse stiffener 8, ground tackle 9 and beam end plate 10; Its section shape of the mouth as one speaks is by top flange 2, and web 3 and bottom flange 4 form, and top flange 2 is parallel with bottom flange 4, and web 3 is vertical between top flange 2 and bottom flange 4; Described web 3 has bolt hole 5.
As shown in Figure 5-11, the section of 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, web 3 entirety is between top flange 2 and bottom flange 4, the waviness curve of web 3 outermost along its length and top flange 2 flush with a sideline along its length, bottom flange 4 and are connected, web 3 and be respectively one-side-filled angle weld between top flange 2 and bottom flange 4; Described transverse stiffener 8 is steel plate, and in the side of web 3, between top flange 2 and bottom flange 4, interval is arranged, and is connected respectively, transverse stiffener 8 leaves prestressed cable hole 11 with web 3, top flange 2 with bottom flange 4 vertical welding; Described beam end plate 10 is steel plate, placement parallel with transverse stiffener 8, is positioned at the beam-ends of prestressing force corrugated web ribbing steel channel beam 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 11; Described prestressed cable 7, through prestressed cable hole 11 reserved on transverse stiffener 8 and beam end plate 10, is fixed in by ground tackle 9 on the beam end plate 10 at prestressing force corrugated web ribbing steel channel beam 1 two ends after stretch-draw.
Wherein, 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 °.Corrugation density and the height of web 3 can change according to force request, and the trapezoidal waviness curve of 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 7 or be presstressed reinforcing steel, the prestressed cable 7 through prestressed cable hole 11 reserved on transverse stiffener 8 and beam end plate 10 is one or more; Prestressed cable 7 linear be recess upwards, wire shaped can change according to force request.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.
Claims (8)
1. a prefabricated PC honeycombed ribbing web steel beam, it is characterized in that: be assembled by bolt (6) by two prestressing force corrugated web ribbings steel channel beam (1), two prestressing force corrugated web ribbing steel channel beam (1) web docking, at web place by adopting bolt (6) to carry out assembly connection at bolt hole (5) place;
Described prestressing force corrugated web ribbing steel channel beam (1), comprises top flange (2), web (3), bottom flange (4), prestressed cable (7), transverse stiffener (8), ground tackle (9) and beam end plate (10); Its section shape of the mouth as one speaks is by top flange (2), web (3) and bottom flange (4) composition, 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);
Described top flange (2) and bottom flange (4) are steel plate, web (3) entirety is positioned between top flange (2) and bottom flange (4), and the waviness curve of web (3) outermost along its length and top flange (2) flush with bottom flange (4) sideline along its length and are connected;
Described transverse stiffener (8) is steel plate, in the side of web (3), between top flange (2) and bottom flange (4), interval is arranged, and is connected respectively with web (3), top flange (2) with bottom flange (4) vertical welding; Transverse stiffener (8) is provided with prestressed cable hole (11);
Described beam end plate (10) is steel plate, with transverse stiffener (8) parallel placement, be positioned at the beam-ends of prestressing force corrugated web ribbing steel channel beam (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 (11);
Described prestressed cable (7), through transverse stiffener (8) and the upper reserved prestressed cable hole (11) of beam end plate (10), be fixed in by ground tackle (9) after stretch-draw on the beam end plate (10) at prestressing force corrugated web ribbing steel channel beam (1) two ends.
2. prefabricated PC honeycombed ribbing web steel beam 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. prefabricated PC honeycombed ribbing web steel beam according to claim 2, 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. prefabricated PC honeycombed ribbing web steel beam according to claim 1, is characterized in that: described web (3) and be respectively one-side-filled angle weld between top flange (2) and bottom flange (4).
5. prefabricated PC honeycombed ribbing web steel beam according to claim 1, is characterized in that: corrugation density and the height of described web (3) can change according to force request.
6. the prefabricated PC honeycombed ribbing web steel beam according to Claims 2 or 3, 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. prefabricated PC honeycombed ribbing web steel beam according to claim 1, it is characterized in that: described prestressed cable (7) or for presstressed reinforcing steel, the prestressed cable (7) through transverse stiffener (8) and the upper prestressed cable hole (11) reserved of beam end plate (10) is one or more.
8. prefabricated PC honeycombed ribbing web steel beam according to claim 1, is characterized in that: described prestressed cable (7) linear be recess upwards, linearly can to change according to force request.
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| CN201310139520.6A CN103255877B (en) | 2013-04-19 | 2013-04-19 | Prefabricated PC honeycombed ribbing web steel beam |
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| CN201310139520.6A CN103255877B (en) | 2013-04-19 | 2013-04-19 | Prefabricated PC honeycombed ribbing web steel beam |
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| CN103255877B true CN103255877B (en) | 2015-11-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836482A (en) * | 2017-01-03 | 2017-06-13 | 高力强 | A kind of construction method for reinforcing steel structure girder or post |
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