CN201620360U - Vertical precasting pedestal for arch rib of bowstring arch bridge - Google Patents
Vertical precasting pedestal for arch rib of bowstring arch bridge Download PDFInfo
- Publication number
- CN201620360U CN201620360U CN2010201739130U CN201020173913U CN201620360U CN 201620360 U CN201620360 U CN 201620360U CN 2010201739130 U CN2010201739130 U CN 2010201739130U CN 201020173913 U CN201020173913 U CN 201020173913U CN 201620360 U CN201620360 U CN 201620360U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- arch rib
- moulding
- arch
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a vertical precasting pedestal for an arch rib of a bowstring arch bridge. The vertical precasting pedestal comprises a base plate, a pedestal and a forming board, wherein the pedestal is arranged on the base plate; the forming board is laid on the pedestal; the forming board, the pedestal and the base plate are combined into a whole body from top to bottom and form a bottom die used for precasting an arch rib needing to be molded; the structures and the sizes of the forming board, the pedestal and the base plate are matched with the structure and the size of the arch rib needing to be molded; the pre-camber at the upper part of the forming board is identical to the pre-camber of the arch rib needing to be molded; the upper surface of the forming board is a forming curved surface used for molding the bottom surface of the arch rib needing to be molded; and the curvilinear equation of a center line of the forming curved surface is identical to the curvilinear equation of a medial axis of the arch rib needing to be molded. The vertical precasting pedestal has the advantages of simple structure, reasonable design, simple and convenient use and operation, high construction efficiency and low construction difficulty, does not need to adopt integral templating in construction templating, does not need overturn during hoisting, does not need to have a try in joint before installation, achieves simple and convenient construction and is easy to ensure the quality, and overcomes the a plurality of defects and shortages existing in the flat precasting method of the arch rib.
Description
Technical field
The utility model belongs to bowstring arch bridge arch rib prefabricating technique field, especially relates to a kind of bowstring arch bridge arch rib vertical precast pedestal.
Background technology
Along with the fast development of transport development, bowstring arch bridge has won increasing favor with its rational stress performance, bigger span ability and pretty moulding, and being applied in of this bridge type is general day by day both at home and abroad.At present, the full framing job practices is generally adopted in the construction of rigid arch rigid tie bar bridge, and the technical comparative maturity of this job practices is operated easylier, but hinders the current of navigation channel in a long time, should not adopt the method for the navigation channel that the traffic volume is bigger.Non-support construction process has obtained attempting using in the bowstring arch bridge construction in heavy traffic navigation channel in recent years, and this technology is less to the navigation ability influence in navigation channel, but cost is higher.In addition, nowadays arch rib generally adopts the method for prefabricating that lies low, and this method for prefabricating is comparative maturity technically, but needs whole setting-out, need stand up during lifting, need try to piece together before installing, and difficulty of construction is bigger, and quality should not guarantee, and construction plant that need be bigger.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of bowstring arch bridge arch rib vertical precast pedestal is provided, it is simple in structure, reasonable in design, use is easy and simple to handle and efficiency of construction is high, difficulty of construction is low, needn't adopt whole setting-out during construction lofting, need not stand up during lifting, need not try assembly before installing, easy construction and quality guarantee easily, overcome arch rib lie low existing many defectives of method for prefabricating and deficiency.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of bowstring arch bridge arch rib vertical precast pedestal, it is characterized in that: comprise bed plate, be laid in the pedestal on the described bed plate and be laid on profiled sheeting on the described pedestal, described profiled sheeting, pedestal and bed plate from top to bottom are combined into one and three's composition is used for the prefabricated bed die that needs the moulding arch rib, the structure of described profiled sheeting, pedestal and bed plate is all corresponding with structure that needs the moulding arch rib and size with size, and the camber on described profiled sheeting top is identical with the camber that needs the moulding arch rib; The upper surface of described profiled sheeting is to be used for the moulding curved surface that moulding needs moulding arch rib bottom surface, and the curvilinear equation of described moulding center of surface line is identical with the curvilinear equation that needs moulding arch rib axis.
The upper surface of described pedestal is a curved surface, and the surface structure of described pedestal is identical with the structure of described moulding curved surface.
Described bed plate is for to build the base concrete basis that forms in advance, and described pedestal is for to build the concrete base that forms on base concrete basis, and described bed plate is a steel plate.
The thickness of described steel plate is 2mm.
Be provided with many prefabricated pull bars used when needing the moulding arch rib in the described concrete base, and many pull bars are even laying.
The utility model compared with prior art has the following advantages:
1, simple in structure, processing and fabricating is easy and the processing and fabricating cost is low, uses easy and simple to handle.
2, rationally novel in design, prefabricated profiled arch rib qualification rate height of institute and efficiency of construction height, difficulty of construction is low, labour intensity significantly reduces, and needs the vertical coordinate of moulding arch rib to draw by computer simulation in advance, and needn't adopt whole setting-out during construction lofting, need not stand up during lifting, need not try assembly before installing, easy construction and quality guarantee easily, overcome the arch rib prefabricated many shortcomings that lie low.
3, with prefabricated the comparing that lie low, the used prefabricated place of the utility model is little, has saved the construction plant.
4, practical value height, the extent of spreading amd application is big, can effectively promote the pre-formed process that is suitable for to relevant arch rib.
In sum, the utility model is simple in structure, reasonable in design, use is easy and simple to handle and efficiency of construction is high, difficulty of construction is low, needn't adopt whole setting-out during construction lofting, need not stand up during lifting, need not try before installing to piece together, easy construction and quality guarantee easily, overcome arch rib lie low existing many defectives of method for prefabricating and deficiency.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the user mode reference diagram of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 1.
Fig. 3 is the cross-sectional structure schematic diagram of the pre-formed arch rib of the utility model.
Fig. 4 is the structural representation of the utility model embodiment 2.
Description of reference numerals:
1-needs the moulding arch rib; 2-base concrete basis; 3-concrete base;
The 4-steel plate; The 5-pull bar.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises bed plate, be laid in the pedestal on the described bed plate and be laid on profiled sheeting on the described pedestal, described profiled sheeting, pedestal and bed plate from top to bottom are combined into one and three's composition is used for the prefabricated bed die that needs moulding arch rib 1, the structure of described profiled sheeting, pedestal and bed plate is all corresponding with structure that needs moulding arch rib 1 and size with size, and the camber on described profiled sheeting top is identical with the camber that needs moulding arch rib 1.The upper surface of described profiled sheeting is to be used for the moulding curved surface that moulding needs moulding arch rib 1 bottom surface, and the curvilinear equation of described moulding center of surface line is identical with the curvilinear equation that needs moulding arch rib 1 axis.
In the present embodiment, the upper surface of described pedestal is a curved surface, and the surface structure of described pedestal is identical with the structure of described moulding curved surface.Described bed plate is for to build the base concrete basis 2 that forms in advance, and described pedestal is for to build the concrete base 3 that forms on base concrete basis 2, and described bed plate is a steel plate 4.The thickness of described steel plate 4 is 2mm.In conjunction with Fig. 3, the cross-sectional structure of described need moulding arch rib 1 is a dumbbell shaped.
In the actual use, carry out whole setting-out for the bow member of whole bowstring arch bridge, the equal segmentation of arch rib and tie-rod is prefabricated, and wherein arch rib adopts the utility model to carry out vertically prefabricated.Before prefabricated,, needing moulding arch rib 1, all going out the coordinate figure of vertical each point earlier with computer simulation for each for need guaranteeing the accuracy of moulding arch rib 1 coordinate, and the corresponding curvilinear equation of extrapolating the axis that needs moulding arch rib 1; Afterwards, the curvilinear equation processing and fabricating that draws according to reckoning goes out to be used for the forming panel of moulding concrete base 3, and builds out the satisfactory concrete base 3 of structure on base concrete basis 2; Subsequently, lay steel plate 4 at concrete base 3 again, promptly finish prefabricated preparation before.In the prefabricated process, adopting the utility model as bed die, is the plastic-coated plate according to designing requirement processing and fabricating arch rib side form and the arch rib side form that adopted again, and arch rib side form arranged outside has multiple tracks folder a tree, used in making timber for boats, guarantees that template is firm.For preventing spillage, guarantee presentation quality, form joint place all accompanies a bed thickness sponge and beats glass cement and handle.
As shown in Figure 4, in the present embodiment, as different from Example 1: be provided with many prefabricated pull bars 5 used when needing moulding arch rib 1 in the described concrete base 3, and many pull bars 5 are even laying, prefabricated when needing moulding arch rib 1, the side form pull bar of corresponding setting on described pull bar 5 and the arch rib side form is used, and the remainder 26S Proteasome Structure and Function is all identical with embodiment 1.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (5)
1. bowstring arch bridge arch rib vertical precast pedestal, it is characterized in that: comprise bed plate, be laid in the pedestal on the described bed plate and be laid on profiled sheeting on the described pedestal, described profiled sheeting, pedestal and bed plate from top to bottom are combined into one and three's composition is used for the prefabricated bed die that needs moulding arch rib (1), the structure of described profiled sheeting, pedestal and bed plate is all corresponding with structure that needs moulding arch rib (1) and size with size, and the camber on described profiled sheeting top is identical with the camber that needs moulding arch rib (1); The upper surface of described profiled sheeting needs the moulding curved surface of moulding arch rib (1) bottom surface for being used for moulding, and the curvilinear equation of described moulding center of surface line is identical with the curvilinear equation that needs moulding arch rib (1) axis.
2. according to the described bowstring arch bridge arch rib vertical of claim 1 precast pedestal, it is characterized in that: the upper surface of described pedestal is a curved surface, and the surface structure of described pedestal is identical with the structure of described moulding curved surface.
3. according to claim 1 or 2 described bowstring arch bridge arch rib vertical precast pedestals, it is characterized in that: described bed plate is for building the base concrete basis (2) that forms in advance, described pedestal is for to build the concrete base (3) that forms on base concrete basis (2), described bed plate is steel plate (4).
4. according to the described bowstring arch bridge arch rib vertical of claim 3 precast pedestal, it is characterized in that: the thickness of described steel plate (4) is 2mm.
5. according to the described bowstring arch bridge arch rib vertical of claim 3 precast pedestal, it is characterized in that: be provided with many prefabricated pull bars (5) used when needing moulding arch ribs (1) in the described concrete base (3), and many pull bars (5) are even laying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201739130U CN201620360U (en) | 2010-04-28 | 2010-04-28 | Vertical precasting pedestal for arch rib of bowstring arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201739130U CN201620360U (en) | 2010-04-28 | 2010-04-28 | Vertical precasting pedestal for arch rib of bowstring arch bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620360U true CN201620360U (en) | 2010-11-03 |
Family
ID=43023816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201739130U Expired - Fee Related CN201620360U (en) | 2010-04-28 | 2010-04-28 | Vertical precasting pedestal for arch rib of bowstring arch bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284102A (en) * | 2016-08-22 | 2017-01-04 | 中国铁建大桥工程局集团有限公司 | The double rib lifting of the calm cable in mountain area is big across tubular arch segmental construction engineering method |
-
2010
- 2010-04-28 CN CN2010201739130U patent/CN201620360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284102A (en) * | 2016-08-22 | 2017-01-04 | 中国铁建大桥工程局集团有限公司 | The double rib lifting of the calm cable in mountain area is big across tubular arch segmental construction engineering method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201943347U (en) | Mounting structure for plastic formwork of frame column | |
| CN104831852A (en) | Original version concrete bracket system construction method | |
| CN202100001U (en) | Independent column system with aluminum alloy templates | |
| CN103722613A (en) | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering | |
| CN201620360U (en) | Vertical precasting pedestal for arch rib of bowstring arch bridge | |
| CN201972715U (en) | Integrated ditch cable trough mould frame | |
| CN204691228U (en) | One-shot forming hollow construction formwork | |
| CN109773946A (en) | A kind of multiple layer combination platform mold of prefabricated large-scale plate-type component | |
| CN202658765U (en) | Keel framework concrete anti-crack filling wall | |
| CN201826539U (en) | Reusable support frame for steel bar construction | |
| CN103878868A (en) | Application of novel vertical pouring construction process to prefabricated concrete block with four hollow corners | |
| CN210263116U (en) | Rapid mounting and dismounting shaping template for concrete reverse filling of lower independent foundation | |
| CN206477356U (en) | Mounting structure of the steel bar truss floor support plate in underground pipe gallery construction | |
| CN205399830U (en) | Easy plane is plastics split heads for reinforcing bar | |
| CN202530756U (en) | Early-removed template support structure | |
| CN202247722U (en) | Ditch cable trench formwork | |
| CN205399454U (en) | Separate house L shape concrete foundation who pours with concrete trough | |
| CN206123902U (en) | A light -duty side form system for precast concrete wall panel production | |
| CN202324371U (en) | Locating cushion block with multiple locating distances for poured board type concrete | |
| CN219993148U (en) | Auxiliary tool for pouring high and large outer wall constructional column | |
| CN205777582U (en) | A kind of concrete pier base moulding bed assembled for large-scale steel structure body | |
| CN204040461U (en) | A kind of MST wall construction part | |
| CN202826020U (en) | Steel molding plate of novel special road surface precasting plate | |
| CN202324356U (en) | Reinforcing-steel-bar locating pad for pouring plate concrete | |
| CN201574582U (en) | Hollow box for cast-in-site floor slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20160428 |