CN103233550B - Prefabricated PC honeycomb web steel beam - Google Patents

Prefabricated PC honeycomb web steel beam Download PDF

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Publication number
CN103233550B
CN103233550B CN201310138133.0A CN201310138133A CN103233550B CN 103233550 B CN103233550 B CN 103233550B CN 201310138133 A CN201310138133 A CN 201310138133A CN 103233550 B CN103233550 B CN 103233550B
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web
flange
steel
plate
waviness curve
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CN103233550A (en
Inventor
于劲
刘学春
赵亮
张爱林
徐阿新
孙超
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Beijing Institute Of Residential Building Desgin & Research Co Ltd
Beijing University of Technology
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Beijing Institute Of Residential Building Desgin & Research Co Ltd
Beijing University of Technology
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Abstract

The present invention relates to a kind of prefabricated PC honeycomb web steel beam, it is formed by two prestressing force corrugated web steel channel beams by bolts assemblies.Prestressing force corrugated web steel channel beam is by top flange, web, lower flange, prestressed cable, anchorage and beam end plate composition.The section shape of the mouth as one speaks of prestressing force ripple steel channel beam is made up of the upper and lower edge of a wing and web, the section of web is in the waveform being uniformly or non-uniformly repeated cyclically, beam end plate is vertically connected and top flange, web and lower flange, positioned at the two ends of prestressing force corrugated web steel channel beam, prestressed cable passes through web and beam end plate, is fixed in after tensioning by anchorage on beam end plate.The web plane arrangement of the present invention is in cellular, optimal result can be obtained in terms of the total bearing capacity of component, suitable for assembling type steel structure system, the innovative prefabricated PC girder steel of high-rise assembling type steel structure systems especially more than large span, compared with traditional assembled beam, with from heavy and light, high capacity and big span the advantages of.

Description

Prefabricated PC honeycomb web steel beam
Technical field
The present invention relates to a kind of prefabricated PC honeycomb 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 employs substantial amounts of Site Welding when constructing, speed of application is slow, to the seriously polluted of environment, it is most important that the quality of weld seam should not be controlled, the security performance of building is had a strong impact on, assembling type steel structure system effectively overcomes the shortcoming of traditional steel house.In assembling type steel structure system, Liang Heliang on-site consolidation is one the problem of need primary study.
In existing assembling type steel structure system, generally use two channel-section steels and carry out assembled, the web docking of two channel-section steels, be attached by bolt, form assembled H profile steel.But, in this connecting method, shearing is to pass to web by bolt, and web is plain plate, so required Number of Bolts and the steel using amount of web are very big, shear-carrying capacity has much room for improvement.
As can be seen here, it is traditional Steel section member is less desirable used in effect among assembling type steel structure system, the stress performance of component is not only influenceed, and need to consume substantial amounts of steel, produce unnecessary waste.In summary, create applied to the new primary structure member of assembling type steel structure system be assembling type steel structure system development the only way which must be passed.
The content of the invention
The present invention proposes a kind of prefabricated PC honeycomb web steel beam for belonging to architectural shape technical field, it is a kind of with low cost its object is to provide, the superior assembled girder steel for being applied to many high-rise assembling type steel structure systems of assembling type steel structure system, especially large span of stress performance.
Technical scheme is as follows:
A kind of prefabricated PC honeycomb web steel beam, is to be formed by two prestressing force corrugated web steel channel beams by bolts assemblies, two prestressing force corrugated web channel-section steel web docking, and assembly connection is carried out at bolt hole by using bolt at web;
The prestressing force corrugated web steel channel beam, including top flange, web, lower flange, prestressed cable, anchorage and beam end plate;Its section shape of the mouth as one speaks is by top flange, web and lower flange composition, and the top flange is parallel with lower flange, and the web is vertically positioned between top flange and lower flange;
The section of the web is in the ripple being uniformly or non-uniformly repeated cyclically, and the ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge-shaped waviness curve or sine curve;Bolt hole and prestressed cable hole are offered on the web;
The top flange and lower flange are steel plate, and web is integrally located between top flange and lower flange, and a line line of the outermost with top flange and lower flange along its length of the waviness curve of web along its length, which is flushed, to be connected;
The beam end plate is steel plate, and perpendicular to top flange, web and lower flange, positioned at the two ends of prestressing force corrugated web steel channel beam, beam end plate is weldingly connected with top flange, web and lower flange;Prestressed cable hole is left on beam end plate;
The prestressed cable, through web and beam end plate on reserve prestressed cable hole, be fixed in after tensioning by anchorage on the beam end plate at prestressing force corrugated web steel channel beam two ends.
The rectangle waviness curve is arc chord angle rectangle waviness curve, and the trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and the wedge-shaped waviness curve is the wedge-shaped waviness curve of arc chord angle.
The trapezoidal waviness curve, the inclination angle of the trapezoidal oblique line section of the trapezoidal waviness curve of arc chord angle are 20 ° -90 °, and the inclination angle of the Wedge slant section of the wedge-shaped waviness curve of the wedge-shaped waviness curve, arc chord angle is 20 ° -90 °.
It is respectively one-side-filled angle weld between the web and top flange and lower flange.
The corrugation density and height of the web can change according to force request.
The wedge-shaped waviness curve of the trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle is made of numerical control bending technology, and sine curve is made of numerical control rolling techniques.
The prestressed cable is prestressed cable, or for presstressed reinforcing steel, through web and beam end plate on the prestressed cable in prestressed cable hole reserved be one or more;
The linear of the prestressed cable is that recess is upward, linear to be changed according to force request.
Beneficial effect:The present invention proposes a kind of prefabricated PC honeycomb web steel beam suitable for assembling type steel structure system, the stress performance of prefabricated member is significantly improved by introducing double corrugated web plate and prestressing technique, compared to the assembled girder steel in traditional assembling type steel structure system, the present invention has following advantage:
The girder steel of the present invention employs two prestressed cables and is arranged symmetrically, it is effectively improved the bearing capacity of assembled girder steel, it ensure that the reasonability of stress, the reference of prestressing technique, can be on the premise of assembled steel joist support loading capability be ensured, effectively mitigate the deadweight of assembled girder steel, increase the span of assembled girder steel, the present invention is more suitable among large span and many high-rise assembling type steel structure systems.
Waviness curve type is presented in the steel beam web plate of the present invention, corrugated steel excellent out of plane stiffness, anti-flexing bearing capacity and higher fatigue strength can effectively be utilized, compared with the plain plate that channel-section steel is assembled into, in the case of thickness identical, shear-carrying capacity and anti-out-of-plane deformation ability are all significantly increased.
The steel beam web plate of the present invention is the assembling of two corrugated webs, equivalent to double corrugated web plate, the stability and bearing capacity of component, especially Torsion bearing capacity can be effectively improved, the horizontal layout of web can obtain optimal result in cellular in terms of the total bearing capacity of component.
Therefore, above-mentioned three kinds of technical advantages can be played simultaneously using the prefabricated PC honeycomb web steel beam of the present invention, compared with other like products, its mechanical property is significantly increased, the reference of prestressing technique can significantly cut down steel using amount, increase the span of assembled girder steel, be effectively facilitated the development of large span and many high-rise assembling type steel structure systems in China.
Meanwhile, in prefabricated PC honeycomb web steel beam proposed by the present invention, the maximum feature of section combination is to optimize the relation between section mechanical property and product steel using amount to a greater extent, makes it more they tend to rationalize and scientific.The reference of prestressing technique can improve the bearing capacity of girder steel, mitigate girder steel deadweight, increase the span of girder steel.Therefore, the present invention has the excellent stress performances such as high-bearing capacity and high rigidity, is a kind of very good structural shapes material.The present invention uses full automatic welding connection technology and specialty aim frock clamp, can ensure that being accurately positioned between web and the edge of a wing, and seam track is consistent, easily realizes standardization, it is possible to achieve many large-scale production, effectively improves production efficiency.
Compared with traditional assembled girder steel, the significant bearing capacity for improving assembled girder steel of the present invention reduces steel using amount, add span, construction costs is reduced, while large-scale industrial production and live quick assembled type can be realized, construction period is reduced.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the construction unit exploded view of the present invention;
Fig. 3 is the schematic diagram of prestressing force corrugated web steel channel beam;
Fig. 4 is the unit decomposition figure of prestressing force corrugated web 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-shaped 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 wedge-shaped ripple curve synoptic diagram of arc chord angle of web section;
Figure 11 is the sine curve ripple curve synoptic diagram of web section;
Figure 12 is the floor map of prestressing force corrugated web steel channel beam;
Figure 13 is the floor map of prefabricated PC honeycomb web steel beam;
In figure:1- prestressing force corrugated web steel channel beams, 2- top flanges, 3- webs, 4- lower flanges, 5- bolts hole, 6- bolts, 7- prestressed cables, 8- prestressed cables hole, 9- anchorages, 10- beam end plates.
Embodiment
The present invention is further illustrated below by embodiment combination accompanying drawing.
As shown in accompanying drawing 1-2, prefabricated PC honeycomb web steel beam proposed by the present invention is to be assembled by two prestressing force corrugated web steel channel beams 1 by bolt 6, two web of prestressing force corrugated web steel channel beam 1 docking, assembly connection is carried out at web by using bolt 6 at bolt hole 5.
As shown in accompanying drawing 3-4, the prestressing force corrugated web steel channel beam 1, including top flange 2, web 3, lower flange 4, prestressed cable 7, anchorage 9 and beam end plate 10;Its section shape of the mouth as one speaks is made up of top flange 2, web 3 and lower flange 4, and top flange 2 is parallel with lower flange 4, and web 3 is vertically positioned between top flange 2 and lower flange 4, and bolt hole 5 and prestressed cable hole 8 are offered on the web 3.
As shown in Figure 5-11, the section of the web 3 is in the waveform being uniformly or non-uniformly repeated cyclically, the 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-shaped waviness curve, or be the wedge-shaped waviness curve of arc chord angle, or be sine curve.
As shown in accompanying drawing 3-4 and accompanying drawing 12-13, the top flange 2 and lower flange 4 are steel plate, web 3 is integrally located between top flange 2 and lower flange 4, a line line of the outermost of the waviness curve of web 3 along its length with top flange 2 and lower flange 4 along its length, which is flushed, to be connected, and is respectively one-side-filled angle weld between web 3 and top flange 2 and lower flange 4;The beam end plate 10 is steel plate, and perpendicular to top flange 2, web 3 and lower flange 4, positioned at the two ends of prestressing force corrugated web steel channel beam 1, beam end plate 10 is weldingly connected with top flange 2, web 3 and lower flange 4;Prestressed cable hole 8 is left on beam end plate 10;The prestressed cable 7, through web 3 and beam end plate 10 on reserve prestressed cable hole 8, be fixed in after tensioning by anchorage 9 on the beam end plate 10 at the two ends of prestressing force corrugated web steel channel beam 1.
Wherein, the trapezoidal waviness curve, the inclination angle of the trapezoidal oblique line section of the trapezoidal waviness curve of arc chord angle are 20 ° -90 °, and the inclination angle of the Wedge slant section of the wedge-shaped waviness curve of the wedge-shaped waviness curve, arc chord angle is 20 ° -90 °.The corrugation density and height of the web 3 can change according to force request.The wedge-shaped waviness curve of the trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle is made of numerical control bending technology, and sine curve is made of numerical control rolling techniques.And prestressed cable 7 is prestressed cable, or for presstressed reinforcing steel, through web 3 and beam end plate 10 on the prestressed cable 7 in prestressed cable hole 8 reserved be one or more;The linear of prestressed cable 7 is that recess is upward, linear to be changed according to force request.
Above is the exemplary embodiments of the present invention, implementation not limited to this of the invention.

Claims (8)

1. a kind of prefabricated PC honeycomb web steel beam, it is characterised in that:The prefabricated PC honeycomb web steel beam is to be assembled by two prestressing force corrugated web steel channel beams (1) by bolt (6), two prestressing force corrugated web steel channel beam (1) web docking, assembly connection is carried out at web by using bolt (6) at bolt hole (5) place;
The prestressing force corrugated web steel channel beam (1), including top flange (2), web (3), lower flange (4), prestressed cable (7), anchorage (9) and beam end plate (10);Its section shape of the mouth as one speaks is by top flange (2), web (3) and lower flange (4) composition, the top flange (2) is parallel with lower flange (4), and the web (3) is vertically positioned between top flange (2) and lower flange (4);
The section of the web (3) is in the ripple being uniformly or non-uniformly repeated cyclically, and the ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge-shaped waviness curve or sine curve;Bolt hole (5) and prestressed cable hole (8) are offered on the web (3);
The top flange (2) and lower flange (4) are steel plate, web (3) is integrally located between top flange (2) and lower flange (4), and a line line of the outermost with top flange (2) and lower flange (4) along its length of the waviness curve of web (3) along its length, which is flushed, to be connected;
The beam end plate (10) is steel plate, perpendicular to top flange (2), web (3) and lower flange (4), positioned at the two ends of prestressing force corrugated web steel channel beam (1), beam end plate (10) is weldingly connected with top flange (2), web (3) and lower flange (4);Prestressed cable hole (8) is left on beam end plate (10);
The prestressed cable (7), the prestressed cable hole (8) reserved on through web (3) and beam end plate (10), is fixed on the beam end plate (10) at prestressing force corrugated web steel channel beam (1) two ends after tensioning by anchorage (9).
2. prefabricated PC honeycomb web steel beam according to claim 1, it is characterised in that:The rectangle waviness curve is arc chord angle rectangle waviness curve, and the trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and the wedge-shaped waviness curve is the wedge-shaped waviness curve of arc chord angle.
3. prefabricated PC honeycomb web steel beam according to claim 2, it is characterised in that:The inclination angle of the trapezoidal oblique line section of the trapezoidal waviness curve is 20 ° -90 °, and the inclination angle of the Wedge slant section of the wedge-shaped waviness curve is 20 ° -90 °.
4. prefabricated PC honeycomb web steel beam according to claim 1, it is characterised in that:It is respectively one-side-filled angle weld between the web (3) and top flange (2) and lower flange (4).
5. prefabricated PC honeycomb web steel beam according to claim 1, it is characterised in that:The corrugation density and height of the web (3) can change according to force request.
6. prefabricated PC honeycomb web steel beam according to claim 2, it is characterised in that:The wedge-shaped waviness curve of the trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle is made of numerical control bending technology, and sine curve is made of numerical control rolling techniques.
7. prefabricated PC honeycomb web steel beam according to claim 1, it is characterized in that, the prestressed cable (7) is prestressed cable, or for presstressed reinforcing steel, through web (3) and beam end plate (10) on the prestressed cable (7) in reserved prestressed cable hole (8) be one or more;
8. prefabricated PC honeycomb web steel beam according to claim 1, it is characterised in that:The linear of the prestressed cable (7) is that recess is upward, linear to be changed according to force request.
CN201310138133.0A 2013-04-19 2013-04-19 Prefabricated PC honeycomb web steel beam Active CN103233550B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU209215U1 (en) * 2021-10-20 2022-02-07 Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" Metal beam with variable corrugated wall

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103485479A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type prestress honeycombed web composite beam
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
CN105064197B (en) * 2015-07-23 2017-03-22 苏交科集团股份有限公司 Corrugated steel web compound web structure
CN106638990A (en) * 2017-02-17 2017-05-10 北京工业大学 Function recoverable end plate assembling type honeycomb web beam column joint connecting device
CN109457866B (en) * 2018-12-13 2020-07-14 河海大学 Anti-sliding partially-wrapped composite beam and prefabricating method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577547A (en) * 1943-12-24 1946-05-22 Stanley George Polden Improvements in joists, beams, girders and the like
KR20060129702A (en) * 2005-06-13 2006-12-18 신대철 Wave web beam
JP2007085016A (en) * 2005-09-20 2007-04-05 Nippon Steel Corp Steel-frame assembled member
CN101215912A (en) * 2008-01-10 2008-07-09 同济大学 Double corrugated web plate steel box girder
CN101377088A (en) * 2008-10-10 2009-03-04 万水 Waveform plate web girder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577547A (en) * 1943-12-24 1946-05-22 Stanley George Polden Improvements in joists, beams, girders and the like
KR20060129702A (en) * 2005-06-13 2006-12-18 신대철 Wave web beam
JP2007085016A (en) * 2005-09-20 2007-04-05 Nippon Steel Corp Steel-frame assembled member
CN101215912A (en) * 2008-01-10 2008-07-09 同济大学 Double corrugated web plate steel box girder
CN101377088A (en) * 2008-10-10 2009-03-04 万水 Waveform plate web girder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU209215U1 (en) * 2021-10-20 2022-02-07 Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" Metal beam with variable corrugated wall

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