CN201016157Y - Steel-mixing composite box beam - Google Patents

Steel-mixing composite box beam Download PDF

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Publication number
CN201016157Y
CN201016157Y CNU2007201240722U CN200720124072U CN201016157Y CN 201016157 Y CN201016157 Y CN 201016157Y CN U2007201240722 U CNU2007201240722 U CN U2007201240722U CN 200720124072 U CN200720124072 U CN 200720124072U CN 201016157 Y CN201016157 Y CN 201016157Y
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CN
China
Prior art keywords
steel
bridge
shaped
reinforced concrete
web
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Expired - Fee Related
Application number
CNU2007201240722U
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Chinese (zh)
Inventor
蒙云
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蒙云
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Priority to CNU2007201240722U priority Critical patent/CN201016157Y/en
Application granted granted Critical
Publication of CN201016157Y publication Critical patent/CN201016157Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a steel-concrete composite box shape beam, mainly comprising T-shaped beams which are orderly connected and a steel board which is used for connecting the web of the T-shaped beam; the two ends of the steel board is connected with the web of the T-shaped beam through epoxy sand slurry and expansion bolt pressurizing so as to form a sealed steel-concrete composite box shape beam. Compared with the prior art, the utility model has such advantages as enhancing the integrity performance of the bridge and remarkably improving the rigidity as well as simple construction and low cost, being suitable for quickly improving the bearing capability of the old dangerous reinforcing rib concrete T-shaped bridge and pre-stress reinforcing rib concrete T-shaped bridge and being capable to keep the construction in normal traffic state without influencing and interrupting the traffic.

Description

The steel reinforced concrete combined box-shaped beam
Technical field
The utility model relates to the improvement technology of bridge member, is specifically related to the steel reinforced concrete combined box-shaped beam that a kind of reinforced concrete T-beam and steel plate are combined to form.
Background technology
T type beam (bridge) owing to simple in structure, cost is low and the steel concrete and prestressed reinforced concrete T type beam bridge that is widely used on local road and the high-grade highway easy for installation on, but because the design feature of T type beam bridge is stressed obviously not as box-girder.Along with the growth of service time and the generation of disease, the supporting capacity of T type beam bridge will reduce year by year, and particularly along with the development of communications and transportation, vehicle flowrate, heavy goods vehicles get more and more, and can not adapt to the transport development needs.And box girder structure complexity, cost are higher relatively.In the prior art, it is (as shown in Figure 1) that one of ordinary skill in the art utilize T type beam (bridge) that prior art is improved the most frequently used method, with epoxy resin affixing carbon fabric 5, but this structural cost height, construction difficulty is big, effect is bad at the web lower edge of T type beam 1; As shown in Figure 2, also the someone proposes the web bar planting, lays steel bar stress, and cast-in-situ concrete 6, changes the T beam imagination of box-girder into, omits bridge pier among the figure.But this mode difficulty of construction is big, long in time limit, deadweight big, that be difficult to carry out and increase former bridge is disturbed in traffic, and reinforcing effect is not remarkable.
The utility model content
At the prior art above shortcomings, the purpose of this utility model is to provide a kind of cost low, easy construction, improves " T changes case " steel reinforced concrete combined box-shaped beam of T type beam bridge supporting capacity.
The purpose of this utility model is achieved in that the steel reinforced concrete combined box-shaped beam, it is characterized in that mainly comprising the T type beam and the steel plate that is used to be connected T type web that connect successively, pressurizes by epoxy mortar and expansion bolt and is connected to form the steel reinforced concrete combined box-shaped beam of sealing with T type web in the steel plate two ends.
Described steel plate is thickness 6~10mmQ235 hot rolled steel plate.
Compared to existing technology, the utlity model has following advantage:
1, can strengthen the overall performance of bridge, obviously improve its rigidity.
2, easy construction, cost is low.
3, also can improve the supporting capacity of old danger reinforced concrete T-beam bridge and prestressed reinforced concrete T type beam bridge fast; Do not influence and suspend traffic, can construct under the normal traffic state keeping.
Description of drawings
The existing T type beam affixing carbon fabric of Fig. 1 is reinforced the box beam schematic diagram that forms.
The existing second kind of T of Fig. 2 changes case beam schematic diagram.
Fig. 3 the utility model steel reinforced concrete combined box-shaped beam structural representation.
Preferred forms
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 3, the steel reinforced concrete combined box-shaped beam that the utility model relates to, mainly comprising the T type beam 1 and the steel plate 2 that is used to be connected T type beam 1 web that connect successively, pressurizes by epoxy mortar and expansion bolt 3 and is connected to form the steel reinforced concrete combined box-shaped beam of sealing with T type beam 1 web in steel plate 2 two ends.Described steel reinforced concrete combined box-shaped beam is located on the bridge pier 4, strengthens the overall performance of bridge greatly, obviously improves its rigidity and supporting capacity; And easy construction, cost is low.
Referring to Fig. 3, the utility model is particularly useful for old danger reinforced concrete T-beam bridge remodeling: to the clear face cutter of T type web lower edge hair, rinse well earlier; Then with the epoxy mortar brushing on the good thickness 6~10mmQ235 hot rolled steel plate of factory process, again steel plate is lifted closely connected at adjacent T web lower edge, aim at the steel plate preformed hole after boring on the web with electric hammer, implant high-strength expansion bolt and add press fit, wait 24~28h epoxy mortar solidifies and reaches intensity, be about to the steel reinforced concrete combined box-shaped beam that T type beam transform sealing as, steel reinforced concrete combination T changes the case beam to be finished, i.e. referable is normally used.Can improve the supporting capacity of old danger reinforced concrete T-beam bridge and prestressed reinforced concrete T type beam bridge fast; Can effectively solve large quantities of T type beam bridge reinforcement and strengthening problems on the existing highway; Do not influence and suspend traffic, can construct under the normal traffic state keeping.

Claims (2)

1. steel reinforced concrete combined box-shaped beam, it is characterized in that mainly comprising the T type beam (1) and the steel plate that is connected T type web (2) that connect successively, pressurization is connected with T type web with expansion bolt (3) by epoxy mortar at steel plate (2) two ends, forms the steel reinforced concrete combined box-shaped beam of sealing.
2. described steel reinforced concrete combined box-shaped beam according to claim 1 is characterized in that described steel plate (2) is thickness 6~10mmQ235 hot rolled steel plate.
CNU2007201240722U 2007-04-20 2007-04-20 Steel-mixing composite box beam Expired - Fee Related CN201016157Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201240722U CN201016157Y (en) 2007-04-20 2007-04-20 Steel-mixing composite box beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201240722U CN201016157Y (en) 2007-04-20 2007-04-20 Steel-mixing composite box beam

Publications (1)

Publication Number Publication Date
CN201016157Y true CN201016157Y (en) 2008-02-06

Family

ID=39056640

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201240722U Expired - Fee Related CN201016157Y (en) 2007-04-20 2007-04-20 Steel-mixing composite box beam

Country Status (1)

Country Link
CN (1) CN201016157Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373664A (en) * 2011-11-03 2012-03-14 上海同济城市规划设计研究院 Combined bridge
CN102619163A (en) * 2012-04-13 2012-08-01 清华大学 Middle bearing type opened-box-section steel-concrete combination beam and construction method thereof
CN105648889A (en) * 2016-03-21 2016-06-08 中国电建集团成都勘测设计研究院有限公司 Reinforced concrete T beam bridge and construction method thereof
CN112726956A (en) * 2020-12-30 2021-04-30 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373664A (en) * 2011-11-03 2012-03-14 上海同济城市规划设计研究院 Combined bridge
CN102619163A (en) * 2012-04-13 2012-08-01 清华大学 Middle bearing type opened-box-section steel-concrete combination beam and construction method thereof
CN105648889A (en) * 2016-03-21 2016-06-08 中国电建集团成都勘测设计研究院有限公司 Reinforced concrete T beam bridge and construction method thereof
CN105648889B (en) * 2016-03-21 2017-04-05 中国电建集团成都勘测设计研究院有限公司 RC T-Beam Bridge and its construction method
CN112726956A (en) * 2020-12-30 2021-04-30 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof
CN112726956B (en) * 2020-12-30 2022-04-12 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080206