CN101280546A - Lower chord opening beam type corrugated steel web combination beam - Google Patents

Lower chord opening beam type corrugated steel web combination beam Download PDF

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Publication number
CN101280546A
CN101280546A CNA2008100896324A CN200810089632A CN101280546A CN 101280546 A CN101280546 A CN 101280546A CN A2008100896324 A CNA2008100896324 A CN A2008100896324A CN 200810089632 A CN200810089632 A CN 200810089632A CN 101280546 A CN101280546 A CN 101280546A
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CN
China
Prior art keywords
chord
steel
concrete
corrugated steel
web
Prior art date
Application number
CNA2008100896324A
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Chinese (zh)
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CN100482892C (en
Inventor
聂建国
吴丽丽
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清华大学
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Publication date
Priority to CNA2007101760806A priority Critical patent/CN101139812A/en
Priority to CN200710176080.6 priority
Application filed by 清华大学 filed Critical 清华大学
Priority to CNB2008100896324A priority patent/CN100482892C/en
Publication of CN101280546A publication Critical patent/CN101280546A/en
Application granted granted Critical
Publication of CN100482892C publication Critical patent/CN100482892C/en

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Abstract

The invention relates to a bottom chord open truss type corrugated steel web composite beam, belonging to a bridge support member. The bottom chord open truss type corrugated steel web composite beam is composed of a top-wing concrete slab, a corrugated steel web and a bottom chord open truss type rectangular steel pipe concrete. Compared with the steel truss type web composite cross section, the bottom chord open truss type corrugated steel web composite beam adopts the corrugated steel web with high shear strength to replace the steel web bar, and has high shear bearing force. The open truss type bottom chord is composed of two parallel rectangular steel pipes and concretes casted in the steel pipes, horizontal supports between rectangular steel pipes, and inclined supports. the bottom chord adopts the steel pipe concrete member to overcome the problem that the bottom flange concrete of the traditional corrugated steel web box beam and steel truss type web composite cross section needs to set up scaffold, support framework and concrete casting so as to have large work load, moreover the bottom chord open truss type corrugated steel web composite beam can improve crack resistance of structure effectively and avoid crack from being exposed, so that structural endurance can be obviously improved. The bottom chord is an open type structure with support connection, and has the advantages of simple structure, convenient and rapid construction.

Description

Lower chord opening beam type corrugated steel web combination beam
Technical field
The present invention relates to a kind of lower chord opening beam type corrugated steel web combination beam that can be applicable to railroad bridge and highway bridge; Belong to the bridge construction technical field.
Background technology
Traditional formula web compound section, steel purlin is to be developed by the concrete box tee section, it adopts the steel boom to replace the concrete web of box section, thereby form by top flange concrete slab, steel boom and the common stressed structural system of bottom flange concrete slab, as shown in Figure 1.When the web member of this class formation adopts the steel boom, for avoiding steel boom pressurized flexing, often need be in the pressurized boom concrete perfusion, need being subjected to tension chord to apply prestressing force sometimes for reducing tensile stress level, the site operation workload is big.Meanwhile, formula web compound section, steel purlin and traditional corrugated steel web case beam (see figure 2) are similar, and there are problems such as field operation amount and difficulty of construction are big in building the scene of need and setting up scaffold, a template etc. of bottom flange concrete slab.On the other hand, cracking appears in concrete floor easily under the positive bending moment effect, and the crack can reduce bearing capacity, rigidity and the durability of structure.
Summary of the invention
The objective of the invention is to set up the construction operation amount of scaffold, a template etc., and propose a kind of a kind of lower chord opening beam type corrugated steel web combination beam that can improve structural bearing capacity, rigidity and cracking resistance for reducing the combined box beam concreting significantly.
Technical scheme of the present invention is as follows:
A kind of lower chord opening beam type corrugated steel web combination beam, it is characterized in that: this compound beam is made up of top flange concrete slab, corrugated steel web and lower edge concrete-filled rectangular steel tube member, described lower edge concrete-filled rectangular steel tube member adopts opens wide purlin formula structure, this opens wide purlin formula structure is by the rectangular steel pipe of two parallel placements and the concrete of inner perfusion, and the horizontal support and the diagonal brace that are arranged between described two rectangular steel pipes are formed; In described rectangular steel pipe, reserve the duct of lower edge prestressed reinforcement of tensioning bundle.
Technical characterictic of the present invention also is: at the inboard of described rectangular steel pipe welding bracket A and bracket B, be used to connect two horizontal support and diagonal braces between the rectangular steel pipe.
Another technical characterictic of the present invention is: the upper surface at described rectangular steel pipe is reserved the concrete spouting hole.
The present invention has the following advantages with respect to prior art and the high-lighting effect: 1. compare with formula web compound section, steel purlin, adopted the higher corrugated steel web of shear strength to replace the steel web member, have very high shear resistant capacity.2. lower edge adopts concrete filled steel tube, can overcome the bigger problems of construction operation amount such as need setting up scaffold, formwork of building of bottom flange concrete slab in traditional corrugated steel web box girder and the formula web compound section, steel purlin.Owing to adopt concrete filled steel tube, also can improve the crack resistance of structure effectively, avoid the crack to expose etc., durability of structures can significantly improve.3. this structure adopts lower chord opening beam type, only uses support and connection between the rectangular steel pipe, the form advantages of simple, and structure height reduces, and can effectively reduce dead load, alleviates geological process, and reduces the cost of foundation.4. this structure lower edge horizontal support and diagonal brace also can be building of top flange concrete slab and provide support, and have reduced form work engineering and concrete wet trade workload and a die process, the industrialization degree height.Steel work partly is mainly prefabrication, and quality is easy to guarantee.
Description of drawings
Fig. 1 is traditional formula web compound section, steel purlin case beam schematic diagram.
Fig. 2 is traditional corrugated steel web case beam schematic diagram.
Fig. 3 is the lower chord opening beam type corrugated steel web combination beam schematic diagram.
Fig. 4 is a lower chord opening beam type corrugated steel web combination beam construction stage schematic diagram (when not building the top flange concrete slab).
Fig. 5 is the lower chord opening beam type corrugated steel web combination beam organigram.
Among the figure: the concrete slab of 1-top flange; 2-steel boom; 3-bottom flange concrete slab; The 4-corrugated steel web; The 5-steel plate; The 6-peg; The 7-rectangular steel pipe; 8-bracket A; 9-bracket B; The 10-horizontal support; The 11-diagonal brace; The interim tie-rod of 12-; 13-concrete spouting hole; 14-tension of prestressed tendon beam hole road; The 15-concrete.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
The invention provides and to reduce the construction operation amount that the combined box beam concreting is set up scaffold, a template etc. significantly, and can improve a kind of lower chord opening beam type corrugated steel web combination beam of structural bearing capacity, rigidity and cracking resistance.As Fig. 3~shown in Figure 5, this compound beam is made up of top flange concrete slab 1, corrugated steel web 4 and lower edge concrete-filled rectangular steel tube member, lower edge concrete-filled rectangular steel tube member adopts opens wide purlin formula structure, and this opens wide purlin formula structure by the concrete 15 of two rectangular steel pipes that be arranged in parallel 7 and inner perfusion thereof and be arranged on two horizontal support 10 and diagonal braces 11 between the rectangular steel pipe 7 and form; Inboard at rectangular steel pipe 7 need be welded bracket A8 and bracket B9 at a certain distance, be used to connect horizontal support 10 and diagonal brace 11 between rectangular steel pipe, and reserve the duct 14 of lower edge prestressed reinforcement of tensioning bundle in rectangular steel pipe 7 domestic demands, and reserve concrete spouting hole 13 at a certain distance at the steel pipe upper surface.
Working procedure of the present invention is:
Lower chord opening beam type corrugated steel web combination beam of the present invention is connect by the assembly (weldering) of steel work, and lower edge concrete filled steel tube (comprising the connection of support) and top flange concrete slab are built three parts and formed.Shown in Fig. 4~5, in factory corrugated steel web 4 and steel plate 5, lower edge rectangular steel pipe 7 are welded, melting welding shear connector peg 6 on steel plate 5, and weld bracket A8 and bracket B9 at a certain distance in rectangular steel pipe 7 inboards, reserve concrete spouting hole 13 at a certain distance at rectangular steel pipe 7 upper surfaces.Each Pin steel member is transported to the job site, carry out the location of steel work, two Pin steel members are coupled together with horizontal support 10 and diagonal brace 11 (sewing material as i iron or angle steel etc.) by bracket A8 and bracket B9, its top flange also adopts interim tie-rod 12 to connect simultaneously, after forming rock-steady structure, in lower edge rectangular steel pipe 7, reserved tension of prestressed tendon beam hole road 14, by concrete spouting hole 13, concrete 15 is injected in the rectangular steel pipe 7, after treating that concrete 15 reaches certain intensity, template, assembling reinforcement and the concreting of a top flange concrete slab 1.The lower edge concrete filled steel tube after structure is born working load, when distortion is not satisfied deformation requirements, should be provided with interim support in the steel pipe bottom according to computational analysis at a certain distance in work progress.

Claims (3)

1, a kind of lower chord opening beam type corrugated steel web combination beam, it is characterized in that: this compound beam is made up of top flange concrete slab (1), corrugated steel web (4) and lower edge concrete-filled rectangular steel tube member, described lower edge concrete-filled rectangular steel tube member adopts opens wide purlin formula structure, this opens wide purlin formula structure is by the rectangular steel pipe (7) of two parallel placements and the concrete (15) of inner perfusion, and the horizontal support (10) and the diagonal brace (11) that are arranged between described two rectangular steel pipes (7) are formed; In described rectangular steel pipe (7), reserve tension of prestressed tendon beam hole road (14).
2, according to the described a kind of lower chord opening beam type corrugated steel web combination beam of claim 1, it is characterized in that:, be used to connect two horizontal support and diagonal braces between the rectangular steel pipe at the inboard of described rectangular steel pipe (7) welding bracket A (8) and bracket B (9).
3, according to the described a kind of lower chord opening beam type corrugated steel web combination beam of claim 1, it is characterized in that: the upper surface at described rectangular steel pipe (7) is reserved concrete spouting hole (13).
CNB2008100896324A 2007-10-19 2008-04-11 Lower chord opening beam type corrugated steel web combination beam CN100482892C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNA2007101760806A CN101139812A (en) 2007-10-19 2007-10-19 Lower edge open truss style corrugated steel web combination beam
CN200710176080.6 2007-10-19
CNB2008100896324A CN100482892C (en) 2007-10-19 2008-04-11 Lower chord opening beam type corrugated steel web combination beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2008100896324A CN100482892C (en) 2007-10-19 2008-04-11 Lower chord opening beam type corrugated steel web combination beam

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Publication Number Publication Date
CN101280546A true CN101280546A (en) 2008-10-08
CN100482892C CN100482892C (en) 2009-04-29

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CNB2008100896324A CN100482892C (en) 2007-10-19 2008-04-11 Lower chord opening beam type corrugated steel web combination beam

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031926A (en) * 2012-12-26 2013-04-10 东南大学 Double T-shaped composite beam provided with prestressed steel tube concrete core rods and fabrication method of double T-shaped composite beam
CN103485477A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type prestress corrugated web holding-on composite beam
CN103485483A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type honeycombed web composite beam
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
CN103485479A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type prestress honeycombed web composite beam

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DE102008029014B3 (en) * 2008-06-20 2010-04-15 Bucyrus Dbt Europe Gmbh Shield frame for underground mining and surface support element for this purpose
CN101736684B (en) * 2008-11-24 2012-07-18 中铁十六局集团有限公司 Non-standard simple supporting girder and manufacturing and mounting technology thereof
CN101798856B (en) * 2010-04-07 2012-04-25 湖南大学 Steel-concrete combined beam and construction method thereof
CN103452039B (en) * 2013-09-13 2015-12-16 上海市城市建设设计研究总院 Cast-in-situs type Inverted T beam and bridge pier and Bridge Pier Construction technique thereof
CN103741582B (en) * 2013-12-30 2016-08-17 郑州大学 A kind of prestressed concrete composite box-girder with corrugated steel webs and construction method thereof
WO2015120621A1 (en) * 2014-02-14 2015-08-20 李勇 Large-span corrugation-truss combined structure bridge
CN104047223B (en) * 2014-07-08 2015-12-09 厦门中平公路勘察设计院有限公司 Light assembling structure bridge and construction method thereof
CN104328862A (en) * 2014-11-24 2015-02-04 南京工业大学 Cross-shaped section column of corrugated steel web-concrete filled steel tube flange combination
CN105064195B (en) * 2015-07-29 2017-07-11 广西交通科学研究院 The fish belly Wavelike steel webplate prestressing with bond steel reinforced concrete combination simply supported girder bridge and its construction method of precast assembly
CN106012793B (en) * 2016-07-07 2019-04-02 上海外经集团控股有限公司 A kind of location structure and method of Wavelike steel webplate
CN106049256B (en) * 2016-08-01 2018-12-25 中国矿业大学(北京) A kind of profiled sheet-Wavelike steel webplate-truss combination beamss and its construction method
CN106012808B (en) * 2016-08-01 2018-04-20 中国矿业大学(北京) A kind of Wavelike steel webplate profiled sheet combination beam and its construction method
CN106836640B (en) * 2017-03-30 2019-01-04 贵州大学 A kind of pre-stressed steel pipe concrete combination beam and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031926A (en) * 2012-12-26 2013-04-10 东南大学 Double T-shaped composite beam provided with prestressed steel tube concrete core rods and fabrication method of double T-shaped composite beam
CN103031926B (en) * 2012-12-26 2015-10-07 东南大学 With the double-T compound beam and preparation method thereof of pre-stressed steel pipe concrete plug
CN103485477A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type prestress corrugated web holding-on composite beam
CN103485483A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type honeycombed web composite beam
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
CN103485479A (en) * 2013-09-13 2014-01-01 北京工业大学 Assembly type prestress honeycombed web composite beam

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Publication number Publication date
CN101139812A (en) 2008-03-12
CN100482892C (en) 2009-04-29

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Granted publication date: 20090429

Termination date: 20110411