CN102720120A - Steel-concrete combined box beam - Google Patents
Steel-concrete combined box beam Download PDFInfo
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- CN102720120A CN102720120A CN2012102128231A CN201210212823A CN102720120A CN 102720120 A CN102720120 A CN 102720120A CN 2012102128231 A CN2012102128231 A CN 2012102128231A CN 201210212823 A CN201210212823 A CN 201210212823A CN 102720120 A CN102720120 A CN 102720120A
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Abstract
The invention discloses a steel-concrete combined box beam which comprises two steel webs, a steel bottom plate, a diaphragm plate, a concrete layer, multiple stiffening ribs and a steel top plate, wherein the two steel webs and the steel bottom plate form a box chamber; the diaphragm plate is horizontally arranged at the upper part in the box chamber to divide the box chamber into an upper box chamber and a lower box chamber; the concrete layer is filled in the upper box chamber; the multiple stiffening ribs are arranged on the bottom plate in the lower box chamber; and the steel top plate is horizontally arranged on the top surface of the upper box chamber. In the steel-concrete combined box beam disclosed by the invention, the concrete combined top plate composed of the steel top plate, the steel webs, the diaphragm plate and the concrete layer bears pressure, and the lower bottom plate and multiple stiffening ribs bear the tension; and the steel-concrete combined box beam has the characteristics of high bearing capacity, high rigidity, good integrity and the like, greatly improves the structural stability, can give full play to the performance of the materials, is convenient to transport and hoist, and has short construction period, high efficiency and obvious economic benefits. Moreover, through the box beam, the height of the cross section of the box beam can be reduced, and the bridge appears more concise and beautiful.
Description
Technical field
The invention belongs to bridge construction design-and-build technical field, particularly relate to a kind of steel-concrete combined box beam.
Background technology
Concrete is that a kind of resistance to tension is relatively poor but material that anti-pressure ability is strong.Can know that from concrete cuff principle when the concrete lateral displacement suffers restraints, its anti-pressure ability will be improved.The steel concrete combined member is to process at Steel Thin-Wall intralamellar part fill concrete material, when its pressurized, because steel plate has the cuff effect to the concrete of its encirclement, thereby makes concrete anti-pressure ability improve greatly.Because the Steel Thin-Wall intralamellar part is filled with concrete material, so the local stability of thin-walled steel plate is improved, such two kinds of materials can remedy the other side's deficiency each other, can exert one's advantage separately again, are a kind of quite desirable form of structure simultaneously.In addition, the steel concrete combined member also has superior mechanical properties such as bearing capacity height, ductility be fabulous, have also simultaneously that area is little, dead load is light, joint structure is convenient, exempt template and reinforcing bar processing, construction fast, reduce advantages such as concrete amount.In addition, it is compared with full steel structure, has again that amount of reinforcement is few, rigidity is big and remarkable advantage such as cost is low.
Because concrete filled steel tubular member has superior anti-pressure ability and structural stability; Therefore the compressed member of doing commonly used; As bearing the post of huge axial pressure in the structures such as highrise building, individual layer, multi storied industrial factory building, underground construction, arch bridge, military fortification, and good effect and economic benefit have been obtained.Simply supported beam is usually used in the bridge construction as a kind of stressed comparatively significantly bridge construction form of concrete structure, and still, for the assembly concrete simply supported girder bridge, the most economical footpath of reasonably striding is below 20m, so the scope of application is restricted; Though the footpath of striding of prestressed concrete simply supported girder bridge has reached 50-70 rice, shortcoming is that construction is complicated, and the duration is longer.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of can the guard box beam supporting capacity and globality, improve the steel-concrete combined box beam of bridge construction speed.
In order to achieve the above object, steel-concrete combined box beam provided by the invention comprises two blocks of steel webs, steel sole plate, diaphragm, layer of concrete, many stiffening ribs and steel top board; Wherein two blocks of steel webs and steel sole plate constitute cross section and are down trapezoidal case chamber; Diaphragm is horizontally set on the internal upper part of case chamber, thus the case chamber is divided into top box chamber and nowel chamber; Layer of concrete is to solidify and form by being filled in concrete material in the top box chamber; Many stiffening rib standoff distances are vertically set on the inner bottom surface of nowel chamber along the length direction of case beam side by side; The steel top board then is horizontally set on the end face of top box chamber.
The thickness of described steel sole plate is greater than the thickness of steel top board and steel web.
The inside of nowel chamber is provided with the polylith stiffener along vertical standoff distance of case beam in the described steel-concrete combined box beam.
Steel-concrete combined box beam provided by the invention is to utilize the steel concrete combination top board with cuff effect that is made up of steel top board, steel web, diaphragm and layer of concrete to bear pressure, bears pulling force by lower shoe and many stiffening ribs, has characteristics such as bearing capacity height, rigidity height, good integrity; Improved stability of structure greatly; And can give full play to material performance separately, and transport and lift conveniently, the construction period is short; Efficient is high, remarkable in economical benefits.In addition, use this steel-concrete combined box beam, can reduce the height of case beam section, make the bridge profile more succinctly attractive in appearance.In addition, this steel-concrete combined box beam adds can adopt the batch production preparation method man-hour, therefore can improve speed of application greatly, and the reduction of erection time, the while can also be avoided the cracking problem in concrete in tension district.
Description of drawings
Fig. 1 is a steel-concrete combined box beam cross sectional representation provided by the invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment steel-concrete combined box beam provided by the invention is elaborated.
As shown in Figure 1, steel-concrete combined box beam provided by the invention comprises two blocks of steel webs 1, steel sole plate 5, diaphragm 3, layer of concrete 2, many stiffening ribs 4 and steel top board 6; Wherein two blocks of steel webs 1 are down trapezoidal case chamber with steel sole plate 5 formation cross sections; Diaphragm 3 is horizontally set on the internal upper part of case chamber, thus the case chamber is divided into top box chamber and nowel chamber; Layer of concrete 2 is to solidify and form by being filled in concrete material in the top box chamber; Many stiffening rib 4 standoff distances are vertically set on the internal backplane of nowel chamber along the length direction of case beam side by side; Steel top board 6 then is horizontally set on the end face of top box chamber.
The thickness of described steel sole plate 5 is greater than the thickness of steel top board 6 and steel web 1.
The inside of nowel chamber is provided with polylith stiffener 7 along vertical standoff distance of case beam in the described steel-concrete combined box beam.
Existing steel-concrete combined box beam manufacturing process provided by the invention is set forth as follows: at first standoff distance vertically is provided with many stiffening ribs 4 side by side along the length direction of case beam on the surface of steel sole plate 5, then two blocks of steel webs 1 and steel sole plate 5 is processed cross section and is down trapezoidal case chamber.Afterwards diaphragm 3 is horizontally set on the internal upper part of case chamber; Thus the case chamber is divided into top box chamber and nowel chamber; Concrete perfusion material in the top box chamber again; Treat that it solidifies the back and forms layer of concrete 2, sets steel top board 6 at last and promptly processes described steel-concrete combined box beam on the end face of top box chamber and layer of concrete 2.
In addition; Can vertically whenever a stiffener 7 be set along the case beam in that nowel is indoor at a distance from a segment distance; And itself and on every side steel plate welded together; Be used for total is played certain bracing reinforcement effect, and increase the rigidity of diaphragm 3 and steel web 1, prevent that diaphragm 3 and steel web 1 from use deforming and influence the globality and the stability of total.
Claims (3)
1. steel-concrete combined box beam, it is characterized in that: described steel-concrete combined box beam comprises two blocks of steel webs (1), steel sole plate (5), diaphragm (3), layer of concrete (2), many stiffening ribs (4) and steel top board (6); Wherein two blocks of steel webs (1) and steel sole plate (5) formation cross section is down trapezoidal case chamber; Diaphragm (3) is horizontally set on the internal upper part of case chamber, thus the case chamber is divided into top box chamber and nowel chamber; Layer of concrete (2) is to solidify and form by being filled in concrete material in the top box chamber; Many stiffening ribs (4) standoff distance is vertically set on the internal backplane of nowel chamber along the length direction of case beam side by side; Steel top board (6) then is horizontally set on the end face of top box chamber.
2. steel-concrete combined box beam according to claim 1 is characterized in that: the thickness of described steel sole plate (5) is greater than the thickness of steel top board (6) and steel web (1).
3. steel-concrete combined box beam according to claim 1 is characterized in that: the inside of nowel chamber is provided with polylith stiffener (7) along vertical standoff distance of case beam in the described steel-concrete combined box beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102128231A CN102720120A (en) | 2012-06-26 | 2012-06-26 | Steel-concrete combined box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102128231A CN102720120A (en) | 2012-06-26 | 2012-06-26 | Steel-concrete combined box beam |
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| CN102720120A true CN102720120A (en) | 2012-10-10 |
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| CN2012102128231A Pending CN102720120A (en) | 2012-06-26 | 2012-06-26 | Steel-concrete combined box beam |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215892A (en) * | 2013-04-22 | 2013-07-24 | 长沙理工大学 | Orthotropic steel and concrete combined bridge face structure |
| CN105603866A (en) * | 2016-02-19 | 2016-05-25 | 任自放 | Special-shaped steel plate combined structure box girder |
| CN106592404A (en) * | 2016-12-30 | 2017-04-26 | 中铁第四勘察设计院集团有限公司 | Steel-concrete composite beam of high speed railway |
| CN106812058A (en) * | 2017-03-14 | 2017-06-09 | 中铁第四勘察设计院集团有限公司 | A kind of longitudinal rib overhead steel reinforced concrete box hat combination girder stayed-cable bridge |
| CN107100065A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN107724224A (en) * | 2017-09-30 | 2018-02-23 | 深圳市市政设计研究院有限公司 | Trapezoidal clad steel plate mixed structure box beam and method of construction |
| CN108004911A (en) * | 2018-01-19 | 2018-05-08 | 郑州市交通规划勘察设计研究院 | Chamfering strengthens rigid frame formula steel diaphragm plate and its construction method |
| CN114382002A (en) * | 2020-10-20 | 2022-04-22 | 华中科技大学 | Steel box-concrete composite beam inter-box beam connecting structure and construction method |
Citations (5)
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| US4610117A (en) * | 1984-08-31 | 1986-09-09 | Dyckerhoff & Widmann Aktiengesllschaft | Multiple-span bridge support system for vehicles with high braking forces |
| FR2662718A1 (en) * | 1990-05-30 | 1991-12-06 | Scetauroute | Three-track (lane) viaduct |
| CN1952261A (en) * | 2006-11-16 | 2007-04-25 | 东南大学 | Split type prestressed concrete combined box beam |
| CN201574354U (en) * | 2010-01-08 | 2010-09-08 | 万水 | Corrugated steel web concrete combined box grinder |
| CN101864729A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Corrugated steel webplate combined box girder floor system for cable-stayed bridge and construction method thereof |
-
2012
- 2012-06-26 CN CN2012102128231A patent/CN102720120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610117A (en) * | 1984-08-31 | 1986-09-09 | Dyckerhoff & Widmann Aktiengesllschaft | Multiple-span bridge support system for vehicles with high braking forces |
| FR2662718A1 (en) * | 1990-05-30 | 1991-12-06 | Scetauroute | Three-track (lane) viaduct |
| CN1952261A (en) * | 2006-11-16 | 2007-04-25 | 东南大学 | Split type prestressed concrete combined box beam |
| CN201574354U (en) * | 2010-01-08 | 2010-09-08 | 万水 | Corrugated steel web concrete combined box grinder |
| CN101864729A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Corrugated steel webplate combined box girder floor system for cable-stayed bridge and construction method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215892A (en) * | 2013-04-22 | 2013-07-24 | 长沙理工大学 | Orthotropic steel and concrete combined bridge face structure |
| CN105603866A (en) * | 2016-02-19 | 2016-05-25 | 任自放 | Special-shaped steel plate combined structure box girder |
| CN107100065A (en) * | 2016-02-22 | 2017-08-29 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN107100065B (en) * | 2016-02-22 | 2019-10-18 | 郑州大学 | A kind of compound section steel box girder and its method of construction for high-speed railway |
| CN106592404A (en) * | 2016-12-30 | 2017-04-26 | 中铁第四勘察设计院集团有限公司 | Steel-concrete composite beam of high speed railway |
| CN106812058A (en) * | 2017-03-14 | 2017-06-09 | 中铁第四勘察设计院集团有限公司 | A kind of longitudinal rib overhead steel reinforced concrete box hat combination girder stayed-cable bridge |
| CN106812058B (en) * | 2017-03-14 | 2018-07-03 | 中铁第四勘察设计院集团有限公司 | A kind of longitudinal rib overhead steel-mixed box hat combination girder stayed-cable bridge |
| CN107724224A (en) * | 2017-09-30 | 2018-02-23 | 深圳市市政设计研究院有限公司 | Trapezoidal clad steel plate mixed structure box beam and method of construction |
| CN108004911A (en) * | 2018-01-19 | 2018-05-08 | 郑州市交通规划勘察设计研究院 | Chamfering strengthens rigid frame formula steel diaphragm plate and its construction method |
| CN114382002A (en) * | 2020-10-20 | 2022-04-22 | 华中科技大学 | Steel box-concrete composite beam inter-box beam connecting structure and construction method |
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Application publication date: 20121010 |