CN1721636A - Prestressed steel-concrete compound beam and manufacturing method thereof - Google Patents
Prestressed steel-concrete compound beam and manufacturing method thereof Download PDFInfo
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- CN1721636A CN1721636A CN 200410028132 CN200410028132A CN1721636A CN 1721636 A CN1721636 A CN 1721636A CN 200410028132 CN200410028132 CN 200410028132 CN 200410028132 A CN200410028132 A CN 200410028132A CN 1721636 A CN1721636 A CN 1721636A
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Abstract
This invention discloses one pre-strain steel and concrete compound cylinder rack and its process method, which comprises the following steps: first connecting two pieces of steel beams by connection screw; then running the temporary rack to make the end of beam generate strain force; then drilling concrete layer to form compound section through shearing force key and steel beam after solidifying; then removing the temporary rack and there is still stain force over.
Description
Technical field the present invention relates to a kind of prestress steel-concrete combination simply supported beam and manufacture method thereof, more particularly, relates to a kind of need not the steel bundle and can obtaining prestressed steel-concrete combination simply supported beam of bridge, building structure that be particularly suitable for.
Background technology in the prior art, the relevant report of existing prestress steel-concrete combination beam, ZL94248089.9 disclosed " interconnection system concrete blinding compound beam " is the square-section, some holes are arranged on it, the beam head is provided with monaural and ears, also have connecting pin, alignment pin and location to insert yesterday etc., its structure is comparatively complicated, the construction trouble.Of the present invention can the conversion by system saved prestressed strand and ground tackle, obtains prestressing force, increases economic efficiency.
Summary of the invention the objective of the invention is to utilize steel-concrete combination beam in structure-forming process, cross section geometric characteristic and cross section internal force are all in the feature that constantly changes, structure is carried out the system conversion, need not prestressed strand, can obtain prestressing force, thereby adjust the structural internal force state, form this principle of compound beam that meets requirement of strength, design a kind of prestress steel-concrete combination beam of simple in structure, easy construction.
In order to achieve the above object, the invention provides following technical scheme: design a kind of prestress steel-concrete combination beam of adjusting internal force, comprise two identical and girder steels that will splice each other (1) of length, girder steel (1) has vertical pillar (2) respectively away from the two ends of splice ends, on girder steel (1), has layer of concrete (3), have several equally distributed shear connectors (4) on the extending direction of girder steel (1) end face, two girder steels (1) are linked to be an integral body by high-strength bolt (5) and back pouring concrete layer (3).
The present invention is in work progress, earlier two girder steels (1) frame is gone up contraposition at pillar (2) and prop (6), adopt high-strength bolt (5) to connect or welding, below match line, support with center prop (6), at girder steel (1) the end face shear connector (4) of burn-oning, at girder steel (1) top-pour layer of concrete (3), after layer of concrete (3) fully condenses, take out center prop (6) and get final product then.
The present invention's technical scheme preferably is: girder steel (1) is steel I-beam or box steel beam.The upper limb concrete bears compressive stress, and the lower edge girder steel bears tensile stress, gives full play to mechanical properties of materials.
The present invention's technical scheme preferably can be: shear connector (4) is T steel weldering nail, and the weldering nail is with girder steel (1) and is welded to connect, and the weldering nail also can adopt reinforcing bar or channel-section steel to replace.
Compared with prior art, the present invention utilizes steel-concrete combination beam in structure-forming process, cross section geometric characteristic and cross section internal force are all in the feature that constantly changes, structure is carried out the system conversion, need not prestressed strand, can obtain prestressing force, thereby adjust the structural internal force state, formation meets this principle of compound beam of requirement of strength, design a kind of prestress steel-concrete combination beam of simple in structure, easy construction, advantages such as that designed compound beam has is simple in structure, easy construction are with a wide range of applications in building trade especially bridge construction.
Be description of drawings of the present invention below the description of drawings:
Fig. 1 is a contour structures schematic diagram of the present invention;
Fig. 2 is a construction status architecture schematic diagram of the present invention;
Fig. 3 is the cross-sectional structure schematic diagram of i iron compound beam;
Fig. 4 is the cross-sectional structure schematic diagram of box-shaped steel combination beam;
Fig. 5 is the cross-sectional structure schematic diagram of opening box-shaped steel combination beam.
Among Fig. 1～Fig. 5, the 1st, girder steel, the 2nd, pillar, the 3rd, layer of concrete, the 4th, shear connector, the 5th, high-strength bolt, the 6th, center prop.
By specific embodiment the present invention is carried out more detailed description below the specific embodiment:
With reference to Fig. 1,3 and 4, prestress steel-concrete combination simply supported beam, two identical and girder steels (1) that splice each other of length, girder steel (1) has vertical pillar (2) respectively away from the two ends of splice ends, on girder steel (1), has layer of concrete (3), have several equally distributed steel fasteners (4) on the extending direction of girder steel (1) end face, high-strength bolt (5) and back pouring concrete layer (3) are linked to be an integral body with two girder steels (1), Figure 3 shows that steel I-beam, Figure 4 shows that box steel beam, steel fastener (4) is T steel weldering nail, and the weldering nail is with girder steel (1) and is welded to connect.
With reference to Fig. 2, in the construction, below match line, support with center prop (6).
Claims (9)
1, a kind of pre-stress steel-concrete combination simply supported beam and manufacture method thereof.Comprise two identical and girder steels (1) that splice each other of length, girder steel (1) has vertical pillar (2) respectively away from the two ends of splice ends, and girder steel (1) splice ends has vertical prop (6) and is rigidly connected by high-strength bolt (5).It is characterized in that: have several equally distributed shear connectors (4) and back pouring concrete layer (3) on the extending direction of girder steel (1) end face, by high-strength bolt (5) two girder steels (1) are linked to be integral body, are linked to be integral body with back pouring concrete layer (3) with girder steel (1) by shear connector (4).
2, compound beam according to claim 1 is characterized in that: girder steel (1) is two or three and connects, more than one of splice ends, and several girder steels (1) length can be inequality.
3, compound beam according to claim 1 is characterized in that: girder steel (1) is an i beam.
4, compound beam according to claim 1 is characterized in that: girder steel (1) is a box-girder.
5, compound beam according to claim 1 is characterized in that: girder steel (1) splice ends can be welding.
6, compound beam according to claim 1 is characterized in that: girder steel (1) splice ends can be to be rigidly connected by the bolt weldering combination that high-strength bolt (5) and welding form jointly.
7, compound beam according to claim 1 is characterized in that: girder steel (1) can be common steel-concrete composite beam.
8, compound beam according to claim 1 is characterized in that: girder steel (1) can be the box steel beam that has applied external prestressing or prestressing with bond.
9, compound beam according to claim 1 is characterized in that: shear connector (4) is T steel weldering nail, reinforcing bar or channel-section steel, and shear connector (4) is with girder steel (1) and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410028132 CN1721636A (en) | 2004-07-13 | 2004-07-13 | Prestressed steel-concrete compound beam and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410028132 CN1721636A (en) | 2004-07-13 | 2004-07-13 | Prestressed steel-concrete compound beam and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN1721636A true CN1721636A (en) | 2006-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410028132 Pending CN1721636A (en) | 2004-07-13 | 2004-07-13 | Prestressed steel-concrete compound beam and manufacturing method thereof |
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| CN (1) | CN1721636A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798794A (en) * | 2010-03-29 | 2010-08-11 | 广东省公路勘察规划设计院有限公司 | Composite box girder bridge erected in advance by using corrugated steel web steel girders and construction method thereof |
| CN101032830B (en) * | 2006-03-08 | 2011-03-30 | 上海市基础工程公司 | Technique of producing steel-concrete connecting beam |
| CN102912728A (en) * | 2012-10-18 | 2013-02-06 | 中交第二航务工程局有限公司 | Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure |
| CN105064196A (en) * | 2015-07-29 | 2015-11-18 | 广西交通科学研究院 | Prefabricated and assembled fish-belly I-shaped prestressed steel-concrete composite simple supported girder bridge and construction method thereof |
| WO2018196376A1 (en) * | 2017-07-24 | 2018-11-01 | 崔冰 | Dry connection prefabricated assembly steel-concrete composite beam |
-
2004
- 2004-07-13 CN CN 200410028132 patent/CN1721636A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032830B (en) * | 2006-03-08 | 2011-03-30 | 上海市基础工程公司 | Technique of producing steel-concrete connecting beam |
| CN101798794A (en) * | 2010-03-29 | 2010-08-11 | 广东省公路勘察规划设计院有限公司 | Composite box girder bridge erected in advance by using corrugated steel web steel girders and construction method thereof |
| CN101798794B (en) * | 2010-03-29 | 2012-07-25 | 广东省公路勘察规划设计院股份有限公司 | Composite box girder bridge erected in advance by using corrugated steel web steel girders and construction method thereof |
| CN102912728A (en) * | 2012-10-18 | 2013-02-06 | 中交第二航务工程局有限公司 | Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure |
| CN102912728B (en) * | 2012-10-18 | 2014-10-01 | 中交第二航务工程局有限公司 | Method for filling non-tight-contact parts of steel-concrete composite beams through rear grouting and filling structure |
| CN105064196A (en) * | 2015-07-29 | 2015-11-18 | 广西交通科学研究院 | Prefabricated and assembled fish-belly I-shaped prestressed steel-concrete composite simple supported girder bridge and construction method thereof |
| WO2018196376A1 (en) * | 2017-07-24 | 2018-11-01 | 崔冰 | Dry connection prefabricated assembly steel-concrete composite beam |
| US11105084B1 (en) | 2017-07-24 | 2021-08-31 | Bing Cui | Dry connection prefabricated assembly steel-concrete composite beam |
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