CN103485479A - Assembly type prestress honeycombed web composite beam - Google Patents

Assembly type prestress honeycombed web composite beam Download PDF

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Publication number
CN103485479A
CN103485479A CN201310418968.1A CN201310418968A CN103485479A CN 103485479 A CN103485479 A CN 103485479A CN 201310418968 A CN201310418968 A CN 201310418968A CN 103485479 A CN103485479 A CN 103485479A
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China
Prior art keywords
web
flange
steel
plate
waviness curve
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Pending
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CN201310418968.1A
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Chinese (zh)
Inventor
张爱林
赵亮
赵海明
刘学春
张劲爱
惠怡
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Beijing University of Technology
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Beijing University of Technology
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Priority to CN201310418968.1A priority Critical patent/CN103485479A/en
Publication of CN103485479A publication Critical patent/CN103485479A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an assembly type prestress honeycombed web composite beam. The assembly type prestress honeycombed web composite beam is assembled by two prestress corrugated web steel channel composite beam bodies through bolts. Each prestress corrugated web steel channel composite beam body is composed of a reinforced concrete wing plate, a profiled steel plate, an upper flange, one web, a lower flange, a prestressed cable, an anchor and a beam end plate. The fracture surface of each prestress corrugated steel channel composite beam body is composed of the reinforced concrete wing plate, the profiled steel plate, the upper flange, the lower flange and the webs. The fracture surface of each web is in even or uneven wave shape repeated periodically, and each prestressed cable penetrates through the webs and the beam end plate and is tensioned and then fixed to the beam end plate through the anchor. The plane of each web is arranged to be honeycombed to obtain the optimum effect in overall bearing capacity of the component, and the assembly type prestress honeycombed web composite beam is an innovation-type assembly type prestress section steel composite beam which is suitable for an assembly type steel structural system and particularly suitable for a large-span multi-story or high-rise assembly type steel structural system. Compared with a traditional assembly type beam, the assembly type prestress honeycombed web composite beam has the advantages of being light in self weight, high in bearing capacity, large in span and the like.

Description

A kind of prefabricated PC honeycombed web combination beam
Technical field
The present invention relates to a kind of prefabricated PC honeycombed web combination beam, belong to the architectural shape technical field.
Background technology
The assembling type steel structure system has overcome that traditional steel house Site Welding amount is large, speed of application reaches the uppity shortcoming of quality slowly effectively, is the important directions of system of steel residential structure development.In the assembling type steel structure system, the on-site consolidation of Liang Heliang is a problem that needs primary study.
Compare girder steel, compound beam has as follows and has superiority: can utilize the concrete pressurized effect of composite floor on girder steel, increase the effective height of beam section, improve bending rigidity and the bearing capacity of steel structure girder, thereby save steel and reduce cost; The steel work compound beam is compared with reinforced concrete beam and plate, can save template and reduce pre-buried embedded part, alleviates deadweight, reduce floor height, convenient construction, reduction of erection time and be convenient to install pipeline; Compound beam can be realized the full assembling of high-rise steel structure system.
In existing assembling type steel structure system, conventional composite beam usually adopts, and to be that two channel-section steel compound beams carry out assembled, and the web docking of two channel-section steels, connected by bolt, forms assembling H shaped steel.But, in this connecting method, shearing is to pass to web by bolt, web is plain plate, and the steel using amount of required Number of Bolts and web is very large, and shear-carrying capacity has much room for improvement.As can be seen here, it is not very desirable that traditional Steel section member is used in to effect among assembling type steel structure, not only affects the stress performance of member, and needs to consume a large amount of steel, produces unnecessary waste.And the application of prestressing technique not only can saving steel, and large span, the development of many high-rise steel structure system have been advanced.Propose a kind of prefabricated PC honeycombed web combination beam for addressing the above problem the present invention, this compound beam can significantly improve the double effects of load bearing beam ability and saving steel, and purposes is more extensive; Can realize large-scale industrial production, promote the development of full assembling type steel structure system simultaneously.
Summary of the invention
The object of the invention is to propose a kind of prefabricated PC honeycombed web combination beam, this compound beam is with low cost, stress performance is superior and be applicable to the assembling compound beam of the how high-rise assembling type steel structure system of assembling type steel structure system, especially large span.
The technical solution used in the present invention is for achieving the above object: a kind of prefabricated PC honeycombed web combination beam, this compound beam is by two prestressing force honeycombed web channel-section steel compound beam web docking, and at the web place, adopts bolt to carry out assembly connection at the bolt hole place; Prestressing force corrugated web channel-section steel compound beam comprises armored concrete slab, profiled sheet, top flange, web, bottom flange, prestressed cable, ground tackle and beam end plate; The section shape of the mouth as one speaks of compound beam is by armored concrete slab, profiled sheet, top flange, and web and bottom flange form; Steel concrete wing plate, profiled sheet, top flange three fix by peg; Top flange is parallel with bottom flange, and web is vertically between top flange and bottom flange; The section of web is the ripple that even or inhomogeneous periodicity repeats, and this ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge shape waviness curve or sine curve; Offer bolt hole and prestressed cable hole on web; Top flange and bottom flange are steel plate, and web integral body is between top flange and bottom flange, and the waviness curve of web outermost along its length flushes and is connected with a sideline along its length, bottom flange with top flange; Beam end plate is steel plate, perpendicular to top flange, web and bottom flange, is positioned at the two ends of prestressing force corrugated web steel channel beam, and beam end plate and top flange, web and bottom flange are weldingly connected; Leave the prestressed cable hole on beam end plate; Prestressed cable, through reserved prestressed cable hole on web and beam end plate, is fixed on the beam end plate at prestressing force corrugated web steel channel beam two ends by ground tackle after stretch-draw.
Profiled sheet is positioned at the top, top flange, transverse reinforcement is welded in profiled sheet top, the steel concrete wing plate is positioned at profiled sheet top, and wherein in profiled sheet, armored concrete slab, a sideline along its length flushes in outermost sideline along its length with the waviness curve of web; The rectangle waviness curve is arc chord angle rectangle waviness curve, and trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and the wedge shape waviness curve is arc chord angle wedge shape waviness curve; The inclination angle of the trapezoidal oblique line section of 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 °; Be respectively the single face fillet weld between web and top flange and bottom flange; The ripple density of web and height can change according to force request; The trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt the numerical control bending technology to make, and sine curve adopts numerical control roll-in technology to make; Prestressed cable is prestressed cable, or is presstressed reinforcing steel, and the prestressed cable that passes prestressed cable hole reserved on web and beam end plate is one or more; The linear of prestressed cable is that recess makes progress, linear can the change according to force request.
Compare the assembling compound beam in traditional assembling type steel structure system, the present invention has following advantage:
1, compound beam of the present invention has adopted two prestressed cables to be arranged symmetrically with, effectively improved the supporting capacity of assembling compound beam, guaranteed stressed reasonability, quoting of prestressing technique, can be under the prerequisite that guarantees assembling compound beam supporting capacity, effectively alleviate the deadweight of assembling compound beam, increase the span of beam, the present invention is more suitable among large span and how high-rise assembling type steel structure system.
2, the compound beam web presents the waviness curve type, can effectively utilize the good out of plane stiffness of corrugated steel, anti-flexing supporting capacity and higher fatigue strength, the plain plate be assembled into channel-section steel is compared, in the situation that the identical shear-carrying capacity of thickness and anti-outer deformability all are significantly increased.
3, the compound beam web is that two corrugated webs assemble it and are equivalent to double corrugated web plate, can effectively improve stability and the especially antitorque bearing capacity of supporting capacity of member, the layout of web is cellular, can aspect the total bearing capacity of member, obtain optimal result.
Therefore, adopt prefabricated PC honeycombed web combination beam of the present invention can bring into play above three kinds of technical advantages simultaneously, compare its mechanical property with other like products and be significantly increased; Steel using amount can be significantly cut down in quoting of prestressing technique, increases the span of assembling girder steel, effectively promotes the development in China of large span and how high-rise assembling type steel structure system.Simultaneously, in the prefabricated PC honeycombed web combination beam that the present invention proposes, it is relations of having optimized to a greater extent between section mechanical property and product steel using amount that section combines maximum characteristics, makes it more be tending towards rationalization and scientific.The supporting capacity that the quoting of prestressing technique can be improved compound beam, alleviate the compound beam deadweight, increase the span of beam.Therefore, the present invention has the good stress performances such as high-bearing capacity and high rigidity, is a kind of very good compound beam form.The present invention adopts full automatic welding connection technology and professional positioning tooling fixture, can guarantee that accurate location, the seam track between web and the edge of a wing is consistent, easily realizes standardization, can realize many large-scale production, effectively enhance productivity.
The accompanying drawing explanation
The structural representation that Fig. 1 is prefabricated PC honeycombed web combination beam;
The element of construction exploded view that Fig. 2 is prefabricated PC honeycombed web combination beam;
The structural representation that Fig. 3 is prefabricated PC honeycombed web combination beam trapezoidal cross-section web;
The structural representation that Fig. 4 is prestressing force honeycombed web girder steel;
The unit decomposition figure that Fig. 5 is prestressing force honeycombed web girder steel;
The schematic diagram that Fig. 6 is prestressing force corrugated web steel channel beam;
The unit decomposition figure that Fig. 7 is prestressing force corrugated web steel channel beam;
The rectangle ripple curve synoptic diagram that Fig. 8 is the web section;
The trapezoidal ripple curve synoptic diagram that Fig. 9 is the web section;
The wedge shape ripple curve synoptic diagram that Figure 10 is the web section;
The arc chord angle rectangle ripple curve synoptic diagram that Figure 11 is the web section;
The trapezoidal ripple curve synoptic diagram of the arc chord angle that Figure 12 is the web section;
The arc chord angle wedge shape ripple curve synoptic diagram that Figure 13 is the web section;
The sine curve waviness curve schematic diagram that Figure 14 is the web section;
The floor map that Figure 15 is prestressing force corrugated web steel channel beam;
The floor map that Figure 16 is prefabricated PC honeycombed web girder steel.
In figure: 1, prestressing force corrugated web channel-section steel compound beam 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 11, profiled sheet 12, steel concrete wing plate 13, peg 14-transverse reinforcement.
The specific embodiment
Below with reference to accompanying drawing and example, the invention will be further described.
Be illustrated in figure 1 the structural representation of prefabricated PC honeycombed web combination beam, the element of construction exploded view that Fig. 2 is prefabricated PC honeycombed web combination beam, the prefabricated PC honeycombed web combination beam that the present invention proposes is to be assembled by bolt 6 by two prestressing force corrugated web channel-section steel compound beams 1, two prestressing force corrugated web channel-section steel compound beam 1 web docking, carry out assembly connection by employing bolt 6 at bolt hole 5 places at the web place.
Be illustrated in figure 3 the structural representation of prefabricated PC honeycombed web combination beam trapezoidal cross-section web, the structural representation that Fig. 4 is prestressing force honeycombed web girder steel, the unit decomposition figure that Fig. 5 is prestressing force honeycombed web girder steel, the schematic diagram that Fig. 6 is prestressing force corrugated web steel channel beam, the unit decomposition figure that Fig. 7 is prestressing force corrugated web steel channel beam, the section shape of the mouth as one speaks of prestressing force corrugated web channel-section steel compound beam 1 comprises top flange 2, web 3, bottom flange 4, prestressed cable 7, ground tackle 9, beam end plate 10, profiled sheet 11 and steel concrete wing plate 12; Top flange 2 is parallel with bottom flange 4, and web 3 is vertically between top flange 2 and bottom flange 4; Offer bolt hole 5 and prestressed cable hole 8 on web 3; Profiled sheet 11 is positioned at 2 tops, top flange, and transverse reinforcement 14 is welded in profiled sheet 11 tops; Steel concrete wing plate 12 is positioned at profiled sheet 11 tops; Steel concrete wing plate 12, profiled sheet 11, top flange 2 threes fix by peg 13.
Be illustrated in figure 8 the rectangle ripple curve synoptic diagram of web section, the trapezoidal ripple curve synoptic diagram that Fig. 9 is the web section, the wedge shape ripple curve synoptic diagram that Figure 10 is the web section, the arc chord angle rectangle ripple curve synoptic diagram that Figure 11 is the web section, the trapezoidal ripple curve synoptic diagram of the arc chord angle that Figure 12 is the web section, the arc chord angle wedge shape ripple curve synoptic diagram that Figure 13 is the web section, the sine curve waviness curve schematic diagram that Figure 14 is the web section, the floor map that Figure 15 is prestressing force corrugated web steel channel beam, the floor map that Figure 16 is prefabricated PC honeycombed web girder steel, the section of web 3 is the waveform that even or inhomogeneous periodicity repeats, this ripple section is the 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 the wedge shape waviness curve, or be arc chord angle wedge shape waviness curve, or be sine curve, top flange 2 and bottom flange 4 are steel plate, web 3 integral body are between top flange 2 and bottom flange 4, the waviness curve of web 3 outermost along its length flushes and is connected with a sideline along its length, bottom flange 4 with top flange 2, between web 3 and top flange 2 and bottom flange 4, is respectively the single face fillet weld, beam end plate 10 is steel plate, perpendicular to top flange 2, web 3 and bottom flange 4, is positioned at the two ends of prestressing force corrugated web steel channel beam 1, and beam end plate 10 is weldingly connected with top flange 2, web 3 and bottom flange 4, leave prestressed cable hole 8 on beam end plate 10, prestressed cable 7 through reserved prestressed cable hole 8 on 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 by ground tackle 9 after stretch-draw, the inclination angle of the trapezoidal oblique line section of trapezoidal waviness curve, the trapezoidal waviness curve of arc chord angle is 20 °-90 °, and the inclination angle of the Wedge slant section of wedge shape waviness curve, arc chord angle wedge shape waviness curve is 20 °-90 °, the ripple density of web 3 and height can change according to force request, the trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt the numerical control bending technology to make, and sine curve adopts numerical control roll-in technology to make, prestressed cable 7 is prestressed cable, or is presstressed reinforcing steel, and the prestressed cable 7 that passes prestressed cable hole 8 reserved on web 3 and beam end plate 10 is one or more, the linear of prestressed cable 7 is that recess makes progress, linear can the change according to force request.

Claims (4)

1. a prefabricated PC honeycombed web combination beam is characterized in that: this prestressing force corrugated web channel-section steel compound beam (1) consists of top flange (2), web (3), bottom flange (4), prestressed cable (7), ground tackle (9) and beam end plate (10), steel concrete wing plate (12), profiled sheet (11); Steel concrete wing plate (12), profiled sheet (11), top flange (2) three fix by peg (13); Top flange (2) is parallel with bottom flange (4), and web (3) vertically is positioned between top flange (2) and bottom flange (4); Prefabricated PC honeycombed web combination beam is to be assembled by bolt (6) by two prestressing force corrugated web channel-section steel compound beams (1), the docking of two prestressing force corrugated web channel-section steel compound beams (1) web, locate carry out assembly connection by employing bolt (6) at bolt hole (5) at the web place; The section of web (3) is the ripple that even or inhomogeneous periodicity repeats, and this ripple section is rectangle waviness curve, trapezoidal waviness curve, wedge shape waviness curve or sine curve; Offer bolt hole (5) and prestressed cable hole (8) on web (3); Top flange (2) and bottom flange (4) are steel plate, web (3) integral body is positioned between top flange (2) and bottom flange (4), and the waviness curve outermost along its length of web (3) flushes and is connected with bottom flange (4) sideline along its length with top flange (2); Beam end plate (10) is steel plate, perpendicular to top flange (2), web (3) and bottom flange (4), is positioned at the two ends of prestressing force corrugated web steel channel beam (1), and beam end plate (10) and top flange (2), web (3) and bottom flange (4) are weldingly connected; Leave prestressed cable hole (8) on beam end plate (10); Prestressed cable (7) through web (3) and the upper reserved prestressed cable hole (8) of beam end plate (10), is fixed on the beam end plate (10) at prestressing force corrugated web steel channel beam (1) two ends by ground tackle (9) after stretch-draw; Profiled sheet (11) is positioned at top, top flange (2), transverse reinforcement (14) is welded in profiled sheet (11) top, steel concrete wing plate (12) is positioned at profiled sheet (11) top, and wherein in profiled sheet (11), armored concrete slab (12), a sideline along its length flushes in outermost sideline along its length with the waviness curve of web.
2. a kind of prefabricated PC honeycombed web combination beam according to claim 1, it is characterized in that: the rectangle waviness curve is arc chord angle rectangle waviness curve, described trapezoidal waviness curve is the trapezoidal waviness curve of arc chord angle, and the wedge shape waviness curve is arc chord angle wedge shape waviness curve; The inclination angle of the trapezoidal oblique line section of 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 °; The trapezoidal waviness curve of arc chord angle, arc chord angle rectangle waviness curve and arc chord angle wedge shape waviness curve adopt the numerical control bending technology to make, and sine curve adopts numerical control roll-in technology to make.
3. a kind of prefabricated PC honeycombed web combination beam according to claim 1 and 2, it is characterized in that: prestressed cable (7) is prestressed cable, be perhaps presstressed reinforcing steel, the prestressed cable (7) that passes prestressed cable hole (8) reserved on web (3) and beam end plate (10) is one or more; The ripple density of web (3) and height can change according to force request; Be respectively the single face fillet weld between web (3) and top flange (2) and bottom flange (4).
4. require described a kind of prefabricated PC honeycombed web combination beam according to claim 1 or 2 or 3, it is characterized in that: the linear of prestressed cable (7) is that recess makes progress, linear can the change according to force request.
CN201310418968.1A 2013-09-13 2013-09-13 Assembly type prestress honeycombed web composite beam Pending CN103485479A (en)

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CN103882957A (en) * 2014-03-24 2014-06-25 北京工业大学 Assembly type steel structure center supporting system spliced by pre-stressing force in meshed mode
CN103882958A (en) * 2014-03-24 2014-06-25 北京工业大学 Rigid joint assembly type steel structure eccentric supporting system spliced by pre-stressing force in meshed mode
CN103882962A (en) * 2014-03-24 2014-06-25 北京工业大学 Rigid joint assembly type steel structure system spliced by pre-stressing force in meshed mode
CN108277744A (en) * 2018-01-19 2018-07-13 郑州市交通规划勘察设计研究院 Arch steel concrete combined bridge deck and its construction method
CN112282054A (en) * 2020-11-02 2021-01-29 山西工程职业学院 Assembled steel structure node component
RU207598U1 (en) * 2021-07-08 2021-11-03 федеральное государственное бюджетное образовательное учреждение высшего образования «Белгородский государственный технологический университет им. В.Г. Шухова» PRE-STRESSED METAL TWO-TUBE BEAM

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103882957A (en) * 2014-03-24 2014-06-25 北京工业大学 Assembly type steel structure center supporting system spliced by pre-stressing force in meshed mode
CN103882958A (en) * 2014-03-24 2014-06-25 北京工业大学 Rigid joint assembly type steel structure eccentric supporting system spliced by pre-stressing force in meshed mode
CN103882962A (en) * 2014-03-24 2014-06-25 北京工业大学 Rigid joint assembly type steel structure system spliced by pre-stressing force in meshed mode
CN108277744A (en) * 2018-01-19 2018-07-13 郑州市交通规划勘察设计研究院 Arch steel concrete combined bridge deck and its construction method
CN112282054A (en) * 2020-11-02 2021-01-29 山西工程职业学院 Assembled steel structure node component
RU207598U1 (en) * 2021-07-08 2021-11-03 федеральное государственное бюджетное образовательное учреждение высшего образования «Белгородский государственный технологический университет им. В.Г. Шухова» PRE-STRESSED METAL TWO-TUBE BEAM

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Application publication date: 20140101