CN106522094B - A kind of Sarasota crosses segment structure and construction method - Google Patents
A kind of Sarasota crosses segment structure and construction method Download PDFInfo
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- CN106522094B CN106522094B CN201611029177.XA CN201611029177A CN106522094B CN 106522094 B CN106522094 B CN 106522094B CN 201611029177 A CN201611029177 A CN 201611029177A CN 106522094 B CN106522094 B CN 106522094B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to Bridge Design and technical field of construction, cross segment structure and construction method in particular to a kind of novel Sarasota.Including the crossbeam being set between two king-posts；The crossbeam includes the steel case between being set to two king-posts；The steel case is the body structure of upper end opening formed by the mutually assembled connection of at least one multiple box units, the direction across bridge both ends of steel case are fixed on by the anchor structure being set on king-post side wall between two king-posts, the lower face of steel case is arc-shaped rib structure, the both sides arch springing of its direction across bridge is fixed on king-post side wall, and armored concrete has been poured in steel case inboard cavity body.The present invention construction of beam it is simple for process, it is convenient and efficient, can be greatly lowered Sarasota cross section construction difficulty, the steel box structure used improves the efficiency of construction of beam, and improves the structural strength of crossbeam, have great promotional value.
Description
Technical field
The present invention relates to Bridge Design and technical field of construction, cross segment structure and construction party in particular to a kind of Sarasota
Method.
Background technology
Bridge cable tower is mainly used in large span stayed-cable bridge, in suspension bridge, and generally tall and slender structure, structure type are more
Sample usually has " inverted Y-shaped ", " A types ", " H-type ", " brilliant ", " flower vase type " etc., in the middle " inverted Y-shaped ", " A types ", " brilliant ",
" flower vase type " exist therefrom king-post gradually cross in receive the structure of upper king-post strut, which is usually defined as that " Sarasota crosses
Section ".Sarasota is divided into two kinds of forms, armored concrete Sarasota and steel construction Sarasota, therefore is also divided into concrete for the section that crosses
Two kinds of structure and steel construction.Conventional steel bar concrete Sarasota, the section that crosses generally use reinforced concrete structure pattern, make various
Different moulding (common to have arc-shaped, ellipse, parabolic type etc.).Since armored concrete Sarasota commonly uses prefabricated and cast-in-place two
Kind, prefabricated component weight is larger, more demanding to lifting equipment selection, substantially without application；Cast-in-place concrete is as concrete pylon
Main application direction, since its feature has the following disadvantages：(1) pumping height of concrete is high at the section that crosses, single coagulation
The side's of pouring amount of soil is big, high to the pumping equipment performance requirement of concrete；(2) cross a section modeling structure complexity, the more section that crosses
Template system uses spelling template, and construction quality and appearance are poor, and the sizing structure of steel die of certain rigidity is arranged, and installation is difficult
It spends big and of high cost；(3) the reserved and reinforcing bar at construction hole is pre-buried etc., and complex process has certain operation difficulty；(4) it hands over
Section of converging is typically in superaltitude, needs the measures such as the console for setting up greater stiffness or high-altitude corbel type arch support, together
When to remove the holder difficulty larger, have the characteristics that operational risk is big, duration consumption is long, material consumption is big.
Invention content
Present invention aim to solve the deficiency of above-mentioned background technology, a kind of Sarasota is provided and is crossed segment structure and construction
Method.
The technical scheme is that：A kind of Sarasota crosses segment structure, it is characterised in that：Including be set to two king-posts it
Between crossbeam；The crossbeam includes the steel case between being set to two king-posts；The steel case is upper end opening by least
The body structure that the mutually assembled connection of one multiple box unit is formed, the direction across bridge both ends of steel case are by being set to king-post side
Anchor structure on wall is fixed between two king-posts, and the lower face of steel case is arc-shaped rib structure, and the two of direction across bridge
Side arch springing is fixed on king-post side wall, and armored concrete has been poured in steel case inboard cavity body.
The further steel case includes top box body unit and nowel body unit；The top box body unit and lower box
The direction across bridge both ends of unit are anchored at respectively on two king-post side walls, and upper and lower box unit is superimposed placement, upper box welding up and down
On lower box；The lower box lower face is arc-shaped rib structure, the upper end opening of lower box；The upper box
Upper and lower ends are open, and armored concrete has been poured in upper and lower babinet.
The further lower box includes the first segment of two horizontally spaced arrangements；The first segment
Section includes bottom plate and the circle side plate being fixed on bottom plate；The bottom plate is arc-shaped platy structure, two first segments
Bottom plate and the lower face assembly of upper box form arc-shaped rib structure；The plate-side plate welding passes through anchoring on bottom plate
Structure is fixed on king-post side wall.
The further upper box includes two second sections welded together；The second section includes one
Ring shape is fixed on the coaming plate on king-post by anchor structure, and coaming plate is welded on side plate, and coaming plate lower face is provided with and bottom
The arc panel of plate connection；The arc panel connect to form arc-shaped rib structure with bottom plate assembly.
Polylith is provided with along the spaced apart floor in direction across bridge direction between further two blocks of coaming plates；Described
Floor both ends are fixed on two blocks of coaming plates, and more WELDING STUDSs are provided on floor.
The further anchor structure includes the more screw rods being embedded on king-post side wall；The side plate and coaming plate
On offer the through-holes of multiple corresponding screw rods；Described screw rod one end is embedded on king-post, and the other end passes through bolt across through-hole
First segment and second section are fixed on king-post side wall by structure.
A kind of Sarasota crosses the construction method of segment structure, it is characterised in that：In advance when king-post is poured in crossbeam installation place
Embedded screw rod, after the completion of king-post pours, handling two respectively saves first segment to crossbeam installation place, and first segment is saved by two by screw rod
Section is fixed on king-post side wall, then handling second section to the top of two section first segments and is fixed in first segment, to
It is pumped into concrete in first segment and second section, concrete setting completes Sarasota and crosses a section construction of beam after stablizing.
The further method includes the following steps：
1), in king-post pouring construction stage pre embedded bolt, screw rod is embedded in crossbeam and is fixedly connected with position with king-post；
2), after the completion of king-post pouring construction, handling one saves first segment to screw rod burial place, and screw rod is passed through first segment
Through-hole on section side plate, is fixed on king-post side wall by first segment using bolt, in this way consolidates another section first segment
It is scheduled on the side wall of another king-post；
3), handling one saves second section to the top of first segment, and corresponding screw rod is passed through on second section coaming plate
Second section is fixed on king-post side wall using bolt, another segment is fixed on another king-post in this way by through-hole
On side wall, the coaming plate lower end of second section is welded on to the side plate upper end of first segment；
4) framework of steel reinforcement, is disposed in first segment and second section, then capping opens up someone in the top of second section
The cover board in hole；
5) concrete, is pumped into the cavity of first segment and second section by the manhole on cover board, concrete is made to fill
It fills out and forms armored concrete with framework of steel reinforcement in the cavity of first segment and second section, concrete completes Sarasota friendship after coagulating reality
Remittance section construction of beam.
Advantages of the present invention has：1, the cast-in-place needs of concrete beam are solved and are taken as formwork for placing by using steel case
The difficulty of construction is greatly reduced in the problem of building high-altitude rack template, improves the efficiency of construction；
2, the steel case being arranged can the formwork for placing as armored concrete and the part as armored concrete carry
The structural strength of high armored concrete, the structure for improving crossbeam of high degree is steady while saving the cost of construction of beam
It is qualitative；
3, by the way that crossbeam lower face to be arranged to rib structure in the arc-shaped, the structural stability of steel case is improved, simultaneously
The weight for reducing steel case is conducive to quickly install steel case, reduces the use of large-scale hanging device；
4, by the way that steel case is divided into multiple segments, the hoisting weight when installation of steel case is reduced, when improving the installation of steel case
Security performance, reduce steel case installation difficulty of construction；
5, by the way that steel box structure is arranged between two king-posts, steel box structure can be used as upper tower portion diaphragm construction
Carrying platform structure provides great convenience for follow-up work.
The present invention construction of beam it is simple for process, it is convenient and efficient, can be greatly lowered Sarasota cross section construction difficulty,
The steel box structure used improves the efficiency of construction of beam, and improves the structural strength of crossbeam, has great promotional value.
Description of the drawings
Fig. 1：The assembled connection diagram of the first segment and second stage of the present invention；
Fig. 2：The front view of the first segment of the present invention；
Fig. 3：A-A views in Fig. 2 of the present invention；
Fig. 4：The front view of the second section of the present invention；
Fig. 5：B-B views in Fig. 4 of the present invention；
Fig. 6：WELDING STUDS arrangement schematic diagram on the king-post of the present invention；
Fig. 7：The first segment constructing structure schematic diagram of the present invention；
Fig. 8：The second section constructing structure schematic diagram of the present invention；
Fig. 9：The section assembling of the present invention completes structural schematic diagram；
Wherein：1-king-post；2-first segments；2.1-bottom plates；2.2-side plates；3-second sections；3.1-coaming plates；
3.2-arc panels；4-screw rods；5-floors；6-WELDING STUDSs；7-cover boards.
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Such as Fig. 1~9, a kind of Sarasota crosses segment structure, including the crossbeam being set between two king-posts 1, and crossbeam includes setting
The steel case being placed between two king-posts 1, steel case are upper end opening by the mutually assembled connection of at least one multiple box units
The steel case of the body structure of formation, the present embodiment can be completed by a segmental construction, can also be two layers of multiple section assemblings,
The overall volume according to crossbeam when practice of construction is needed to be calculated, in the case where lifting weight and installation weight all allows,
A segment can be used to carry out steel case construction.If a segment is too heavy, lift and install all when something goes wrong, Wuhan Katyuan
Intellectual property agent limited company is carried out assembled using multiple segments.
As shown in Figure 1, carrying out steel case assembling construction using two segments this embodiment describes a kind of.Steel case includes top box
The direction across bridge both ends of body unit and nowel body unit, top box body unit and nowel body unit are anchored at two 1 side walls of king-post respectively
On, upper and lower box unit is superimposed placement up and down, and upper box is welded on lower box, and lower box lower face is arc-shaped arch rib
Structure, the upper end opening of lower box, upper box upper and lower ends are open, and armored concrete has been poured in upper and lower babinet.
As shown in figures 2-3, lower box includes the first segment 2 of two horizontally spaced arrangements, and first segment 2 is wrapped
The circle side plate 2.2 for including bottom plate 2.1 and being fixed on bottom plate 2.1, bottom plate 2.1 is arc-shaped platy structure, two first segments
The bottom plate 2.1 of section 2 forms arc-shaped rib structure with the lower face assembly of upper box, and side plate 2.2, which is welded on bottom plate 2.1, to be led to
Anchor structure is crossed to be fixed on 1 side wall of king-post.2.2 inside of side plate is provided with polylith support rib structure, for reinforcing lower box
Structural stability.
As shown in Figures 4 and 5, upper box includes two second sections welded together 3, and second section 3 includes a ring
Shape is fixed on the coaming plate 3.1 on king-post 1 by anchor structure, and coaming plate 3.1 is welded on side plate 2.2, and 3.1 lower face of coaming plate is set
It is equipped with the arc panel 3.2 being connect with bottom plate 2.1, arc panel 3.2 connect to form arc-shaped rib structure with 2.1 assembly of bottom plate.
In order to enhance the structural stability of upper box, the present embodiment is arranged in coaming plate 3.1 in the toroidal cavity formed
There is polylith along the spaced apart floor 5 in direction across bridge direction, 5 both ends of floor are fixed on 3.1 inner side end of coaming plate, are set on floor 5
It is equipped with more WELDING STUDSs 6.WELDING STUDS 6 is connect to enhance the concrete being cast in second section 3 and the connection of second section 3
Contacting surface is accumulated, and the structural strength of entire crossbeam is enhanced.
The anchor structure of the present embodiment as shown in fig. 6, anchor structure includes the more screw rods 4 being embedded on 1 side wall of king-post,
The through-hole of multiple corresponding screw rods 4 is offered on side plate 2.2 and coaming plate 3.1,4 one end of screw rod is embedded on king-post 1, and the other end passes through
First segment 2 and second section 3 are fixed on 1 side wall of king-post by through-hole by bolt arrangement.By bolted connection by
One segment 2 and second section 3 are fixed on the side wall of king-post 1.
As shown in figs. 7-9, construction process is as follows：1, in 1 pouring construction stage of king-post pre embedded bolt 4, screw rod 4 is buried
Position is fixedly connected with king-post 1 in crossbeam, screw rod 4 is fixed on the steel plate being embedded in king-post 1, including is used to anchor first segment
The screw rod 4 of section 2 and second section 3；
2, after the completion of 1 pouring construction of king-post, handling one saves first segment 2 to 4 burial place of screw rod, and screw rod 4 is passed through the
First segment 2 is fixed on 1 side wall of king-post by the through-hole on one segment side plate 2.2 using bolt, in this way by another section the
One segment 2 is fixed on the side wall of another king-post 1,
3, handling one saves second section 3 to the top of first segment 2, and corresponding screw rod 4 is passed through second section coaming plate 3.1
On through-hole, second section 3 is fixed on 1 side wall of king-post using bolt, is in this way fixed on another segment another
On the side wall of king-post 1, construction personnel enters in the hollow cavity in first segment 2 and second section 3, by second section 3
3.1 lower end of coaming plate is welded on 2.2 upper end of side plate of first segment 2,
4, framework of steel reinforcement is disposed in first segment 2 and second section 3, then capping offers in the top of second section 3
The cover board 7 of manhole,
5, concrete is pumped into the cavity of first segment 2 and second section 3 by the manhole on cover board 7, makes concrete
It is filled in the cavity of first segment 2 and second section 3 and forms armored concrete with framework of steel reinforcement, concrete completes rope after coagulating reality
Tower crosses a section construction of beam.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (6)
- The segment structure 1. a kind of Sarasota crosses, it is characterised in that：Including the crossbeam being set between two king-posts (1)；The cross Beam includes the steel case being set between two king-posts (1)；The steel case is upper end opening by least one multiple babinets The body structure that the mutually assembled connection of unit is formed, the direction across bridge both ends of steel case pass through the anchoring that is set on king-post (1) side wall Structure is fixed between two king-posts (1), and the lower face of steel case is arc-shaped rib structure, and the both sides arch springing of direction across bridge is solid It is scheduled on king-post (1) side wall, armored concrete has been poured in steel case inboard cavity body；The steel case includes top box body unit under Box unit；The direction across bridge both ends of the top box body unit and nowel body unit are anchored at respectively on two king-post (1) side walls, Upper and lower box unit is superimposed placement up and down, and upper box is welded on lower box；The lower box lower face is arc-shaped arch Rib structure, the upper end opening of lower box；The upper box upper and lower ends are open, and armored concrete has been poured in upper and lower babinet； The lower box includes the first segment (2) of two horizontally spaced arrangements；The first segment (2) includes bottom plate (2.1) and be fixed on bottom plate (2.1) one circle side plate (2.2)；The bottom plate (2.1) be arc-shaped platy structure, two The bottom plate (2.1) of a first segment (2) forms arc-shaped rib structure with the lower face assembly of upper box；The side plate (2.2) it is welded on bottom plate (2.1) and is fixed on king-post (1) side wall by anchor structure.
- The segment structure 2. a kind of Sarasota as described in claim 1 crosses, it is characterised in that：The upper box includes two welding Second section (3) together；The second section (3) includes that a ring shape by anchor structure is fixed on king-post (1) On coaming plate (3.1), coaming plate (3.1) is welded on side plate (2.2), and coaming plate (3.1) lower face is provided with to be connect with bottom plate (2.1) Arc panel (3.2)；The arc panel (3.2) connect to form arc-shaped rib structure with bottom plate (2.1) assembly.
- The segment structure 3. a kind of Sarasota as claimed in claim 2 crosses, it is characterised in that：The coaming plate (3.1) is around formation Toroidal cavity in be provided with polylith along the spaced apart floor in direction across bridge direction (5)；Described floor (5) both ends, which are fixed on, encloses On plate (3.1) inner side end, more WELDING STUDSs (6) are provided on floor (5).
- The segment structure 4. a kind of Sarasota as claimed in claim 2 crosses, it is characterised in that：The anchor structure includes more and buries Screw rod (4) on king-post (1) side wall；Multiple corresponding screw rods (4) are offered on the side plate (2.2) and coaming plate (3.1) Through-hole；Described screw rod (4) one end is embedded on king-post (1), and the other end passes through through-hole by bolt arrangement by first segment (2) and second section (3) is fixed on king-post (1) side wall.
- The construction method of segment structure 5. a kind of Sarasota as claimed in claim 4 crosses, it is characterised in that：In advance in king-post (1) Screw rod (4) is buried in crossbeam installation place when pouring, after the completion of king-post (1) pours, handling two respectively saves first segment (2) to crossbeam Two section first segments (2) are fixed on king-post (1) side wall by installation place by screw rod (4), then handling second section (3) is to two sections The top of first segment (2) is simultaneously fixed in first segment (2), is pumped into first segment (2) and second section (3) mixed Solidifying soil, concrete setting complete Sarasota and cross a section construction of beam after stablizing.
- The construction method of segment structure 6. a kind of Sarasota as claimed in claim 5 crosses, it is characterised in that：The method includes Following steps：1), in king-post (1) pouring construction stage pre embedded bolt (4), screw rod (4) is embedded in crossbeam and is fixedly connected with king-post (1) Position；2), after the completion of king-post (1) pouring construction, handling one saves first segment (2) to screw rod (4) burial place, and screw rod (4) is worn The through-hole on first segment side plate (2.2) is crossed, first segment (2) is fixed on king-post (1) side wall using bolt, in this way Another section first segment (2) is fixed on the side wall of another king-post (1)；3), handling one saves second section (3) to the top of first segment (2), and corresponding screw rod (4) is passed through second section coaming plate (3.1) second section (3) is fixed on king-post (1) side wall using bolt, in this way consolidates another segment by the through-hole on It is scheduled on the side wall of another king-post (1), coaming plate (3.1) lower end of second section (3) is welded on to the side plate of first segment (2) (2.2) upper end；4) framework of steel reinforcement, is disposed in first segment (2) and second section (3), then capping opens up in the top of second section (3) There is the cover board (7) of manhole；5) concrete, is pumped into the cavity of first segment (2) and second section (3) by the manhole on cover board (7), makes coagulation Soil is filled in the cavity of first segment (2) and second section (3) forms armored concrete with framework of steel reinforcement, after concrete coagulates reality Sarasota is completed to cross a section construction of beam.
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| CN201611029177.XA CN106522094B (en) | 2016-11-22 | 2016-11-22 | A kind of Sarasota crosses segment structure and construction method |
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| CN201611029177.XA CN106522094B (en) | 2016-11-22 | 2016-11-22 | A kind of Sarasota crosses segment structure and construction method |
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| CN110205936B (en) * | 2019-05-07 | 2023-12-12 | 中国建筑第六工程局有限公司 | Arc-shaped stepped cable tower beam side template and construction method thereof |
| CN110258776B (en) * | 2019-07-24 | 2024-05-14 | 陈菲 | Prestressed bridge and manufacturing method and application thereof |
| CN110904818B (en) * | 2019-11-11 | 2021-09-24 | 中铁大桥勘测设计院集团有限公司 | Combined upper cross beam for main tower of bridge |
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| JP3952843B2 (en) * | 2002-05-15 | 2007-08-01 | 鹿島建設株式会社 | Construction method of tower structure |
| CN2885932Y (en) * | 2005-12-31 | 2007-04-04 | 厦门高格桥梁景观设计研究中心 | Large-span multi-pylon cable stayed bridge |
| CN101446065B (en) * | 2008-12-26 | 2010-11-24 | 中铁二局股份有限公司 | Combined cable support tower |
| CN106012795B (en) * | 2016-04-13 | 2017-11-03 | 中交第二航务工程局有限公司 | Bielliptic(al) moulding Cable-stayed Bridge Pylon crosses structure |
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