CN1740447A - Reinforcing structure for bridge with T-shaped cross section - Google Patents
Reinforcing structure for bridge with T-shaped cross section Download PDFInfo
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- CN1740447A CN1740447A CN 200510105301 CN200510105301A CN1740447A CN 1740447 A CN1740447 A CN 1740447A CN 200510105301 CN200510105301 CN 200510105301 CN 200510105301 A CN200510105301 A CN 200510105301A CN 1740447 A CN1740447 A CN 1740447A
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Abstract
The present invention discloses one kind of reinforcing structure for bridge with T-shaped cross section. Reinforced concrete bottom slab is connected to the low edge main ribs of the T-shaped cross section so as to form case beam bridge. Converting the T-shaped beam structure into case beam structure can greatly raise the bending and torque rigidity and raise the bearing capacity of the bridge by 30-45 % in the cost 80-90 % lower than that of building new bridge.
Description
Technical field
The present invention relates to a kind of ruggedized construction of bridge, specifically, relate to the ruggedized construction of a kind of T type cross section beam bridge.
Background technology
In the existing at present T type beam bridge of having built (its cross sectional shape as shown in Figure 1) of China, most of bridges can not satisfy the ever-increasing traffic volume and corresponding load requirement because of construction standard was on the low side originally, are badly in need of reinforcing strengthening.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can improve T type beam bridge bearing capacity, improve the ruggedized construction of the T type cross section beam bridge of the bending resistance of T type beam bridge, torsional rigidity.
The present invention is achieved in that the ruggedized construction of a kind of T type cross section beam bridge, and it includes the T type and cuts section bar, and has additional the steel bar concrete base plate on the lower edge that the T type cuts section bar.
Owing on the lower edge master muscle of T type beam section, have additional the steel bar concrete base plate, after converting former T type girder construction to the box beam structure, its bending resistance, torsional rigidity improve greatly, improve bridge capacity 30-45% (being equivalent to 1-2 class of loading), rebuild new bridge cost savings 80-90%.
Described steel bar concrete base plate includes steel grid and concrete, and wherein, steel grid is made of vertical muscle and horizontal bar intersection, and horizontal bar is connected with the lower edge master muscle of T type beam section; Concrete is cast on the steel grid and with it and covers, and this structure can improve steel bar concrete base plate and the bonding strength of T type beam and the integral rigidity of box-girder.The horizontal bar of described steel grid (21) is shaped as " door " font that is made of a horizontal edge and two vertical edges, the vertical edges of door type horizontal bar is parallel to lower edge master muscle that described T type cuts section bar and fixedly connected with it, to increase the bonded area of horizontal bar and T type beam main tendon, improve bonding strength.
Description of drawings
Fig. 1 is T type beam section figure;
Fig. 2 is the box beam sectional view;
A kind of structural representation that Fig. 3 is connected with T type beam for steel bar concrete base plate of the present invention;
The another kind of structural representation that Fig. 4 is connected with T type beam for steel bar concrete base plate of the present invention;
Fig. 5 is the outline drawing of horizontal bar.
Among the figure
The 11.T type vertical muscle 23. steel bar concrete base plate horizontal bars of lower edge master muscle 2. steel bar concrete base plates 21. concretes 22. steel bar concrete base plates that cut section bar 1.T type cuts section bar
The specific embodiment
Referring to accompanying drawing 2, be the beam bridge ruggedized construction that a kind of T type cuts section bar and converts box to, it includes the T type and cuts section bar 1, has additional steel bar concrete base plate 2 on the T type cuts section bar 1 lower edge.Thereby make former T type beam convert box-girder to.
Described steel bar concrete base plate 2 includes steel grid and concrete 21, wherein, steel grid is made of vertical muscle 22 and horizontal bar 23 intersections, horizontal bar 23 and the T type lower edge master muscle 11 that cuts section bar is connected, for example horizontal bar 23 intersects and is welded in T type beam section lower edge master muscle 11 in Fig. 3, and concrete 21 is cast on the steel grid and with its covering.
As shown in Figure 5, the horizontal bar 23 of described steel grid is shaped as " door " font of a horizontal edge and two vertical edges formation, and the vertical edges of door type horizontal bar is parallel to described T type cross section fine strain of millet lower edge master muscle 11 and fixedly connected with it, referring to Fig. 4.
With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment the protection domain that all any improvement that the utility model is done or modification all belong to the utility model claim.
Claims (3)
1. the ruggedized construction of a T type cross section beam bridge, it includes the T type and cuts section bar (1), it is characterized in that: set up steel bar concrete base plate (2) at the cut section bar lower edge of (1) of T type.
2. the ruggedized construction of T type according to claim 1 cross section beam bridge, it is characterized in that: described steel bar concrete base plate (2) includes steel grid and concrete (21), wherein, steel grid is intersected by vertical muscle (22) and horizontal bar (23) and constitutes, and horizontal bar (23) and the T type lower edge master muscle (11) that cuts section bar is connected; Concrete (21) is cast in and forms the steel bar concrete base plate on the steel grid.
3. the ruggedized construction of T type according to claim 2 cross section beam bridge, it is characterized in that: the horizontal bar of described steel grid (23) is shaped as " door " font that a horizontal edge and two vertical edges constitute, and it is also fixedly connected with it that the vertical edges of door type horizontal bar is parallel to the described T type lower edge master muscle (11) that cuts section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510105301 CN1740447A (en) | 2005-09-23 | 2005-09-23 | Reinforcing structure for bridge with T-shaped cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510105301 CN1740447A (en) | 2005-09-23 | 2005-09-23 | Reinforcing structure for bridge with T-shaped cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1740447A true CN1740447A (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510105301 Pending CN1740447A (en) | 2005-09-23 | 2005-09-23 | Reinforcing structure for bridge with T-shaped cross section |
Country Status (1)
| Country | Link |
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| CN (1) | CN1740447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2354663A1 (en) * | 2008-08-01 | 2011-03-17 | Structural Research S.L. | Prefabricated beam to walk it. (Machine-translation by Google Translate, not legally binding) |
| CN105178162A (en) * | 2015-08-25 | 2015-12-23 | 张江涛 | T-beam reinforcing structure and construction method thereof |
-
2005
- 2005-09-23 CN CN 200510105301 patent/CN1740447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2354663A1 (en) * | 2008-08-01 | 2011-03-17 | Structural Research S.L. | Prefabricated beam to walk it. (Machine-translation by Google Translate, not legally binding) |
| CN105178162A (en) * | 2015-08-25 | 2015-12-23 | 张江涛 | T-beam reinforcing structure and construction method thereof |
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