CN105463985B - A kind of temporary support of firm structure Continuous Bridge - Google Patents
A kind of temporary support of firm structure Continuous Bridge Download PDFInfo
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- CN105463985B CN105463985B CN201610021768.6A CN201610021768A CN105463985B CN 105463985 B CN105463985 B CN 105463985B CN 201610021768 A CN201610021768 A CN 201610021768A CN 105463985 B CN105463985 B CN 105463985B
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- plate
- sandbox
- steel bar
- reinforcing steel
- tension reinforcing
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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
- E01D19/04—Bearings; Hinges
-
- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of temporary support of firm structure Continuous Bridge, including four sandboxs for being arranged on pier coping portion, first sleeve and the second sleeve pipe are set in bridge pier, first tension reinforcing steel bar is set in first sleeve, first tension reinforcing steel bar lower end is fixed in bridge pier, first tension reinforcing steel bar upper end passes sandbox upwards, and the first tension reinforcing steel bar upper end passes the position of sandbox and is cased with the first top nut；Second tension reinforcing steel bar is set in the second sleeve pipe, the lower end of the second tension reinforcing steel bar is fixed in bridge pier, the upper end of the second tension reinforcing steel bar passes sandbox and beam slab upwards successively, second tension reinforcing steel bar passes the position of beam slab and is cased with the second top nut, and the 3rd sleeve pipe passed through for the second tension reinforcing steel bar is provided with beam slab.The problems such as temporary support energy effectively solving continuous beam temporary support work progress is complicated, unsuitable fast pouring and dismounting, low construction efficiency, expense input height, construction period are delayed.
Description
Technical field
The invention belongs to firm structure Continuous Bridge technical field of construction, and in particular to interim of a kind of firm structure Continuous Bridge
Seat.
Background technology
Temporary support refers to the bearing for being laid in top of bridge pier both sides for the firm structure Continuous Bridge of temporary support, and its purpose is guarantor
Demonstrate,prove firm structure Continuous Bridge uniform force, structure safety.In decades, Construction of continuous beam has been used up more traditional construction technique,
Using reinforced concrete as temporary support.It is seen everywhere in various construction drawing.Conventional construction method is to utilize bar-mat reinforcement
, used as support, work progress specifically includes following operation for piece and high strength concrete：Temporary support reinforcing bar pier shaft is pre-buried, temporary support steel
Muscle colligation, temporary support formwork erection, temporary support are poured, temporary support is anchored in 0# blocks.
During practice of construction, when being constructed using traditional reinforced concrete temporary support, in terms of there is following four
Problem and difficulty：
Firstth, work progress is more complicated：Need pier shaft top embedded bar, temporary support carries out reinforcing bar colligation and will to be 5cm thick
Sulphur-bonded mortar, sulphur-bonded mortar need to carry out live proportioning test, and mortar strength is not less than 50MPa, pre-buried resistance wire in mortar, and mould
Plate is reinforced and pours temporary support concrete, in the future using resistance wire energization scorification, then temporary support is carried out using traditional handicraft
Cut.
Secondth, construction cuts difficulty：Cut using air compressor machine and pneumatic pick, work surface is narrow and small, concrete strength is high, should not dig
Except, spend time length, affect the full-bridge system transform time.Environmental pollution is big, big to workman's body harm, and labor intensity is high.
3rd, efficiency of construction is relatively low：Due to being designed with it being C40 reinforced concretes, oxygen and acetylene are adopted during cutting
Carry out cutting off reinforcing bar, it is long to cut the time, workload is big, and progress is slow.Typically cutting 4 temporary supports needs 1 month or so, pole
It is big to affect working procedure progress.
4th, construction cost is high：Construction, former material and is cut and plant equipment expense as temporary support using reinforced concrete
Height, spends a large amount of manpowers, financial resources and material resources.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, there is provided interim of a kind of firm structure Continuous Bridge
Seat.The simple structure of the temporary support, reasonable in design, easy construction and construction period be short, construction effect is good, can be easy, quick
And safety completes the replacement work of continuous beam temporary support, energy effectively solving continuous beam temporary support work progress is complicated, unsuitable
Fast pouring and dismounting, low construction efficiency, the problems such as expense input is high, the construction period is delayed.
For achieving the above object, the technical solution used in the present invention is：A kind of temporary support of firm structure Continuous Bridge, which is special
Levy and be：Including four sandboxs for being arranged on pier coping portion, two of which sandbox is located at the first permanent bearing of pier coping portion respectively
Left side and right side, two other sandbox respectively positioned at the second permanent bearing of pier coping portion left side and right side, in the bridge pier
The first sleeve being provided with below the sandbox and the second sleeve pipe, are provided with the first tension reinforcing steel bar in the first sleeve,
The lower end of first tension reinforcing steel bar is fixed in the bridge pier, and the upper end of first tension reinforcing steel bar passes corresponding upwards
Sandbox, the upper end of first tension reinforcing steel bar passes the position of sandbox and is cased with the first top nut；Arrange in second sleeve pipe
The lower end for having the second tension reinforcing steel bar, second tension reinforcing steel bar is fixed in the bridge pier, the upper end of second tension reinforcing steel bar
Pass sandbox corresponding thereto and beam slab upwards successively, the position that second tension reinforcing steel bar passes the beam slab is cased with second
Top nut, is provided with the 3rd sleeve pipe passed through for the second tension reinforcing steel bar in the beam slab.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：Sand on the left of the first permanent bearing
Be provided with the first interim pad between sandbox on the left of case and the second permanent bearing, the sandbox on the right side of the first permanent bearing and
The second interim pad is provided between sandbox on the right side of second permanent bearing.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：Also include that the 3rd interim pad, the 4th face
When pad and the 5th interim pad, the 3rd interim pad be arranged on the described first permanent bearing and the second permanent bearing it
Between, the 4th interim pad is arranged between the described first permanent bearing and the sandbox on the left of which, the 3rd interim pad and
Between one interim pad and between the second permanent bearing and the sandbox on the left of which, the 5th interim pad is arranged on described
Between one permanent bearing and the sandbox on the right side of which, between the 3rd interim pad and the second interim pad and the second permanent bearing and
Between sandbox on the right side of which.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：The first interim pad and second is faced
When pad made by pad I-steel, the pad I-steel is set in upper and lower layer cloth；The 3rd interim pad, the 4th face
When pad and the 5th interim pad made by lower floor's chock and upper strata I-steel, the upper strata I-steel is arranged on the lower floor
On the top surface of chock.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：The sandbox include base plate, cover plate and
It is arranged on left plate between the base plate and cover plate, right plate, front side board and back side panel, the lower end of the left plate, right side
The lower end of the lower end of plate, the lower end of front side board and back side panel is connected with base plate, the upper end of the left plate, right plate it is upper
End, the upper end of the upper end of front side board and back side panel are connected with cover plate, and the left end of the front side board is connected with left plate, it is described before
The right-hand member of side plate is connected with right plate, and the left end of the back side panel is connected with left plate, the right-hand member and right plate of the back side panel
Connection, the base plate, cover plate, left plate, right plate, front side board and back side panel are surrounded for containing the chamber of sand, the bottom
The first lower through-hole passed through for the first tension reinforcing steel bar and the second lower through-hole passed through for the second tension reinforcing steel bar are offered on plate, it is described
Offer on cover plate for the first tension reinforcing steel bar pass through first on through hole and for the second tension reinforcing steel bar pass through second on through hole, institute
State and unload husky hole, described unloading is provided with closure bolt in husky hole.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：The front side board and left plate, it is described before
Side plate and right plate, the back side panel and left plate and back side panel and right plate are flange connection.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：The left end of the front side board is provided with
One left flanged plate, the right-hand member of the front side board are provided with the first right flanged plate, and the left end of the back side panel is provided with the second left method
Blue plate, the right-hand member of the back side panel are provided with the second right flanged plate, and the front end of the left plate is with the first left flanged plate by height
Strength bolt connects, and the rear end of the left plate is connected by high-strength bolt with the second left flanged plate, the front end of the right plate and
First right flanged plate is connected by high-strength bolt, and the rear end of the right plate is connected by high-strength bolt with the second right flanged plate.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：Including for connecting left plate and right side
First screw rod of plate and the second screw rod for connecting front side board and back side panel, the left end of first screw rod stretch out left plate
And left nut is cased with the position for stretching out left plate, the right-hand member of first screw rod stretches out right plate and in the portion for stretching out right plate
Position is cased with right nut, and the front end of second screw rod is stretched out front side board and is cased with front nut at the position for stretching out front side board, described
Stretch out back side panel and back nut is cased with the position for stretching out back side panel in the rear end of the second screw rod.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：Set between the left nut and left plate
The left backing plate being enclosed within the first screw rod is equipped with, the right pad being enclosed within the first screw rod between the right nut and right plate, is provided with
Plate, is provided with the front backing plate being enclosed within the second screw rod, between the back nut and back side panel between the front nut and front side board
It is provided with the rear backing plate being enclosed within the second screw rod.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that：The lower end of the first sleeve and second
The lower end of sleeve pipe is reserved with injected hole.
The present invention has advantages below compared with prior art：
1st, simple structure of the invention, reasonable in design and input cost is relatively low, it is convenient to realize.
2nd, constructing operation of the invention is simple, easy construction, difficulty of construction is low and efficiency of construction is high, substitutes concrete using sandbox
After temporary support technique, work efficiency can be effectively improved.
3rd, construction effect of the invention is good and construction cost is low, and construction safety is guaranteed, can produce larger positive effect
Answer, economic benefit and social benefit are notable.
4th, the present invention is easily removed at the end of construction, and when workmen removes, labor intensity is low, few during expense Di ， Mao,
Labour force's input is little.
5th, the present invention sets up interim pad on the basis of sandbox again, effectively increases lifting surface area.
6th, left plate and right plate effectively can be tensed connection, by arranging by arranging the first screw rod by the present invention
Front side board and back side panel effectively can be tensed connection, the bulk strength of sandbox can so more consolidated by the second screw rod.
7th, the present invention substitutes concrete temporary support technique using sandbox, and construction technology is simple, convenient and swift, is installing and is removing
Procedure section is made an appointment and reduces labor intensity, improves efficiency of construction.Save and in construction, put into construction cost, effectively save resource,
The impact healthy during cutting to workman is reduced, and dust is reduced to air pollution.
Below by drawings and Examples, technical scheme is described in further detail.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
A-A sectional views of the Fig. 2 for Fig. 1.
Fig. 3 is the structural representation of sandbox of the present invention.
Top views of the Fig. 4 for Fig. 3.
Description of reference numerals:
1-bridge pier；2-first sleeve；3-the second sleeve pipe；
4-the first tension reinforcing steel bar；5-sandbox；5-1-base plate；
5-2-left plate；5-3-the first screw rod；5-4-left nut；
5-5-left backing plate；The left flanged plate of 5-6-the first；5-7-cover plate；
5-8-front side board；5-9-the second screw rod；5-10-front nut；
5-11-front backing plate；The right flanged plate of 5-12-the first；5-13-right plate；
5-14-right backing plate；5-15-right nut；5-16-back side panel；
5-17-rear backing plate；5-18-back nut；The left flanged plate of 5-19-the second；
The right flanged plate of 5-20-the second；Through hole on 5-21-the first；Through hole on 5-22-the second；
5-23-closure bolt；6-the first upper padding plate；7-the first top nut；
8-the second tension reinforcing steel bar；9-the second upper padding plate；10-the second top nut；
11-the first permanent bearing；12-beam slab；13-the second permanent bearing；
14-the first interim pad；15-the second interim pad；16-the three interim pad；
17-the four interim pad；18-the five interim pad.
Specific embodiment
The temporary support of a kind of firm structure Continuous Bridge as shown in Figure 1, Figure 2, Figure 3 and Figure 4, pushes up including bridge pier 1 is arranged on
Four sandboxs 5 in portion, two of which sandbox 5 are located at the left side and right side of the first permanent bearing 11 at the top of bridge pier 1 respectively, and in addition two
Individual sandbox 5 is located at the left side and right side of the second permanent bearing 13 at the top of bridge pier 1 respectively, is provided with positioned at described in the bridge pier 1
It is provided with the first tension reinforcing steel bar 4 in first sleeve 2 and the second sleeve pipe 3 below sandbox 5, the first sleeve 2, described first
The lower end of reinforcing bar 4 is drawn to be fixed in the bridge pier 1, the upper end of first tension reinforcing steel bar 4 passes corresponding sandbox upwards
5, the upper end of first tension reinforcing steel bar 4 passes the position of sandbox 5 and is cased with the first top nut 7；It is provided with second sleeve pipe 3
Second tension reinforcing steel bar 8, the lower end of second tension reinforcing steel bar 8 are fixed in the bridge pier 1, second tension reinforcing steel bar 8 it is upper
End passes sandbox 5 corresponding thereto and beam slab 12 upwards successively, and second tension reinforcing steel bar 8 passes the position of the beam slab 12
The second top nut 10 is cased with, and the 3rd sleeve pipe 19 passed through for the second tension reinforcing steel bar 8 is provided with the beam slab 12.
In the present embodiment, cooperating to constitute by four sandboxs 5 is used for the temporary support for supporting firm structure Continuous Bridge, energy
The uniform force of firm structure Continuous Bridge is effectively ensured enough, it is ensured that structure safety.And during using sandbox 5 as temporary support,
Its construction technology is simple, convenient and swift, saves the time in installation and demolishing process and reduces labor intensity, improves efficiency of construction,
Save and in construction, put into construction cost, effectively save resource reduces the impact healthy during cutting to workman, reduces
Dust is to air pollution.
In the present embodiment, by the pre-buried first sleeve 2 in bridge pier 1, facilitate dismounting of the later stage to the first tension reinforcing steel bar 4,
In the same manner, pre-buried 3rd sleeve pipe 19 by pre-buried second sleeve pipe 3 in bridge pier 1 and in beam slab 12, facilitates the later stage to the second tensioning
The dismounting of reinforcing bar 8.And due to sand closely knit in sandbox 5, can facilitate in tensioning the first tension reinforcing steel bar 4 and the second tensioning steel
During muscle 8, the first tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8 can be moved with respect to sandbox 5, and are eliminated and installed sleeve pipe
Trouble, and sand closely knit in sandbox 5 also has good load performance.
As shown in Fig. 2 sandbox 5 on the left of sandbox 5 and the second permanent bearing 13 on the left of the first permanent bearing 11 it
Between be provided with the first interim pad 14, the sand on the right side of sandbox 5 and the second permanent bearing 13 on the right side of the first permanent bearing 11
The second interim pad 15 is provided between case 5.
As depicted in figs. 1 and 2, the temporary support also includes that the 3rd interim pad 16, the 4th interim pad 17 and the 5th are faced
When pad 18, the 3rd interim pad 16 is arranged between the described first permanent bearing 11 and the second permanent bearing 13, described
4th interim pad 17 is arranged between the described first permanent bearing 11 and the sandbox on the left of which 5, the 3rd interim pad 16 and
Between one interim pad 14 and between the second permanent bearing 13 and the sandbox on the left of which 5, the 5th interim pad 18 is arranged
Between sandbox 5 in the described first permanent bearing 11 and on the right side of which, between the 3rd interim pad 16 and the second interim pad 15 with
And second between permanent bearing 13 and the sandbox on the right side of which 5.
In the present embodiment, by setting up interim pad, significantly more efficient firm structure Continuous Bridge can be supported, make firm structure continuous
Being more uniformly stressed for bridge, effectively increases the lifting surface area with beam slab 12.
In the present embodiment, the first interim pad 14 and the second interim pad 15 are made by pad I-steel, described
Pad I-steel is set in upper and lower layer cloth, and per layer has two row's pad I-steel；Interim of the 3rd interim pad the 16, the 4th
Pad 17 and the 5th interim pad 18 are made by lower floor's chock and upper strata I-steel, and the upper strata I-steel is arranged on the lower floor
On the top surface of chock.The convenience of drawing materials of above-mentioned each interim pad, low manufacture cost.
As shown in Figure 3 and Figure 4, the sandbox 5 includes base plate 5-1, cover plate 5-7 and is arranged on the base plate 5-1 and lid
Left plate 5-2, right plate 5-13, front side board 5-8 and back side panel 5-16 between plate 5-7, the lower end of the left plate 5-2, the right side
The lower end of the lower end, the lower end of front side board 5-8 and back side panel 5-16 of side plate 5-13 is connected with base plate 5-1, the left plate 5-2
Upper end, the upper end of right plate 5-13, the upper end of the upper end of front side board 5-8 and back side panel 5-16 be connected with cover plate 5-7, it is described
The left end of front side board 5-8 is connected with left plate 5-2, and the right-hand member of the front side board 5-8 is connected with right plate 5-13, the back side panel
The left end of 5-16 is connected with left plate 5-2, and the right-hand member of the back side panel 5-16 is connected with right plate 5-13, the base plate 5-1, lid
Plate 5-7, left plate 5-2, right plate 5-13, front side board 5-8 and back side panel 5-16 are surrounded for containing the chamber of sand, the bottom
The first lower through-hole for passing through for the first tension reinforcing steel bar 4 is offered on plate 5-1 and is led to for second time that the second tension reinforcing steel bar 8 is passed through
Hole, offer on the cover plate 5-7 for the first tension reinforcing steel bar 4 pass through first on through hole 5-21 and wear for the second tension reinforcing steel bar 8
Through hole 5-22 on second for crossing, on described first, through hole 5-21 is corresponding with first lower through-hole, through hole 5- on described second
22 is corresponding with second lower through-hole, offers and unload husky hole on the left plate 5-2 and right plate 5-13, described to unload husky hole
Closure bolt 5-23 is inside installed.In the present embodiment, the closure bolt 5-23 is high-strength bolt.
In the present embodiment, the front side board 5-8 and left plate 5-2, the front side board 5-8 and right plate 5-13, it is described after
Side plate 5-16 and left plate 5-2 and back side panel 5-16 and right plate 5-13 are flange connection.Connected by flange, can either
Guarantee being connected firmly for 5 each side plate of sandbox, while being also convenient for the dismounting in later stage.
As shown in Figure 3 and Figure 4, in the present embodiment, the left end of the front side board 5-8 is provided with the first left flanged plate 5-6, institute
The right-hand member for stating front side board 5-8 is provided with the first right flanged plate 5-12, and the left end of the back side panel 5-16 is provided with the second left flange
The right-hand member of plate 5-19, the back side panel 5-16 is provided with the second right flanged plate 5-20, and the front end of the left plate 5-2 is left with first
Flanged plate 5-6 high-strength bolts connect, and the rear end of the left plate 5-2 is connected with the second left flanged plate 5-19 high-strength bolts, described
The front end of right plate 5-13 is connected with the first right flanged plate 5-12 high-strength bolts, the rear end of the right plate 5-13 and the second right method
Blue plate 5-20 high-strength bolts connection.
As shown in Figure 3 and Figure 4, the sandbox 5 is also included for connecting first screw rod of left plate 5-2 and right plate 5-13
5-3 and the second screw rod 5-9 for connecting front side board 5-8 and back side panel 5-16, the left end of the first screw rod 5-3 stretch out a left side
Side plate 5-2 and left nut 5-4 is cased with the position for stretching out left plate 5-2, the right-hand member of the first screw rod 5-3 stretches out right plate 5-
13 and be cased with right nut 5-15 at the position for stretching out right plate 5-13, the front end of the second screw rod 5-9 stretch out front side board 5-8 and
Front nut 5-10 is cased with the position for stretching out front side board 5-8, the rear end of the second screw rod 5-9 is stretched out back side panel 5-16 and stretched
The position for going out back side panel is cased with back nut 5-18.
In the present embodiment, by arranging the first screw rod 5-3, effectively left plate 5-2 and right plate 5-13 can be tensed
Front side board 5-8 and back side panel 5-16, by arranging the second screw rod 5-9, effectively can be tensed connection, can so be made by connection
The bulk strength of sandbox 5 is more consolidated.
As shown in Figure 3 and Figure 4, it is provided between the left nut 5-4 and left plate 5-2 and is enclosed within the first screw rod 5-3
Left backing plate 5-5, is provided with the right backing plate 5-14 being enclosed within the first screw rod 5-3 between the right nut 5-15 and right plate 5-13,
The front backing plate 5-11 being enclosed within the second screw rod 5-9, the back nut 5- are provided between front nut 5-10 and front side board 5-8
The rear backing plate 5-17 being enclosed within the second screw rod 5-9 is provided between 18 and back side panel 5-16.By arranging left backing plate 5-5, can
Guarantee that left nut 5-4 will not cause to damage to left plate 5-2 when screwing, by arranging right backing plate 5-14, it can be ensured that right spiral shell
Female 5-15 will not cause to damage to right plate 5-13 when screwing, by arranging front backing plate 5-11, it can be ensured that front nut 5-10
Will not front side board 5-8 be caused to damage when screwing, in the same manner, the backing plate 5-17 after setting, it can be ensured that back nut 5-18 exists
Will not back side panel 5-16 be caused to damage when screwing.
With reference to Fig. 1 and Fig. 3, it is provided between first top nut 7 and cover plate 5-7 and is enclosed within the first tension reinforcing steel bar 4
First upper padding plate 6, is provided with the second upper padding plate being enclosed within the second tension reinforcing steel bar 8 between second top nut 10 and beam slab 12
9。
In the present embodiment, the temporary support rises pre-buried by 32mm finish rolling in construction, first at 10m under the top of bridge pier 1
First tension reinforcing steel bar 4 made by steel and the second tension reinforcing steel bar 8 extend to 1 pier top of bridge pier, and pre-buried quantity for each 5 position of sandbox is
21, wherein three is the first tension reinforcing steel bar 4, remaining is the second tension reinforcing steel bar 8, is adopted in the outside of the first tension reinforcing steel bar 4
φ 50mm conduit peschels adopt φ 50mm conduit peschel as second sleeve pipe 3 in the outside of the second tension reinforcing steel bar 8 as first sleeve 2,
The length of first sleeve 2 and the second sleeve pipe 3 inside bridge pier 1 is about 9.86m.First is stretched out in the lower end of the first tension reinforcing steel bar 4
The lower end of sleeve pipe 2, and nut and pad are installed in extending area, stretch out under the second sleeve pipe 3 in the lower end of the second tension reinforcing steel bar 8
End, and nut and pad are installed in extending area, slip casting is reserved with the lower end of the lower end of first sleeve 2 and the second sleeve pipe 3
Hole, so as to for ensure later stage sandbox 5 remove after, injecting treatment can be carried out to bridge pier 1.
Next, controlling pier construction height and pier top longitudinal gradient.First tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8
Length be about 0.8m, lengthen each 5 bottom of sandbox by pre-buried the first tension reinforcing steel bar 4 for coming up of bridge pier 1 and the second tension reinforcing steel bar
8.Then the 5 base plate 5-1 of sandbox for leaving through hole is installed, then 5 four cycle side plate of sandbox is installed, using the locked sandboxs of closure bolt 5-23
Husky hole is unloaded on 5, the fine sand for drying in advance is installed in each sandbox 5, sand installs height and is slightly above 5 top 2cm of sandbox
Left and right (height of sandbox 5 is 56cm), then installs the cover plate 5-7 of sandbox 5 again, and three first tension reinforcing steel bars 4 of tensioning are to sandbox 5
Precompressed is carried out, stretching force is 200kN, makes sand more closely knit, if any space, remove the cover plate 5-7 of sandbox 5, it is secondary to fill sand
Son, two times tensioning, the sand in sandbox 5 are closely knit.The sandbox 5 completed to tensioning, screws first on the first tension reinforcing steel bar 4
Top nut 7, the locked sandbox 5 of purpose prevent the secondary lax of sandbox 5.
Treat that 5 tensioning of sandbox is closely knit, the first permanent bearing 11 and the second permanent bearing 13 are installed, treat permanent bearing peace
After the completion of dress, first is arranged between the sandbox 5 on the left of the sandbox 5 and the second permanent bearing 13 on the left of the first permanent bearing 11 and faced
When pad 14, be provided with second between the sandbox 5 on the right side of the sandbox 5 and the second permanent bearing 13 on the right side of the first permanent bearing 11
Interim pad 15, arranges the 3rd interim pad 16, between the described first permanent bearing 11 and the second permanent bearing 13 described
Between first permanent bearing 11 and the sandbox on the left of which 5, between the 3rd interim pad 16 and the first interim pad 14 and second
It is permanent that 4th interim pad 17 is set between bearing 13 and the sandbox on the left of which 5, on the right side of the described first permanent bearing 11 and its
Sandbox 5 between, between the 3rd interim pad 16 and the second interim pad 15 and the second permanent bearing 13 and the sand on the right side of which
5th interim pad 18 is set between case 5.The height of above-mentioned interim pad is 60cm.Can be made by arranging interim pad
Just structure Continuous Bridge is more uniformly stressed, and effectively increases the lifting surface area with beam slab 12, then re-lay bed die and side form,
Colligation base plate, web, roof steel bar, web and door opening are installed, then by 18 second tension reinforcing steel bar, 8 spreadings in each sandbox 5
To the beam slab 12 of 0,1# blocks.
Treat 0,1# block reinforcing bar colligations complete, model sheetinstallat complete and concrete placings after the completion of.After concrete reaches design strength, to 0#
The second tension reinforcing steel bar 8 on the beam slab 12 of block carries out tensioning, and the stretching force per the second tension reinforcing steel bar of root 8 is 100kN.Tensioning is completed
Afterwards, second tension reinforcing steel bar 8 is locked by screwing the second top nut 10.
When full-bridge carries out system transform, (the i.e. the 12nd, 13 after closing up) first putting in 0# block backs is opened and unclamps second
Top nut 10, before removing each sandbox 5, first removes the closure bolt 5-23 on sandbox 5, unloads husky hole and put sand from described
Go out, after sandbox to be removed 5, pull down adapter everywhere, the first tension reinforcing steel bar 4 is extracted out from first sleeve 2, and from second set
Second tension reinforcing steel bar 8 is extracted out in pipe 3 and the 3rd sleeve pipe 19, finally by the injected hole pair in first sleeve 2 and the 3rd sleeve pipe 3
First sleeve 2 and the 3rd sleeve pipe 3 carry out injecting treatment, carry out concrete placings to the 3rd sleeve pipe 19 in beam slab 12, using same label
Concrete carries out pouring completing.Finally each interim pad is removed again.To the anchoring of 1 pier top sliding support surrounding of bridge pier, system removes, the
One permanent bearing 11 and the second permanent bearing 13 can with stress when produce sliding.
The above, is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure transformation that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (8)
1. a kind of temporary support of firm structure Continuous Bridge, it is characterised in that：Including four sandboxs being arranged at the top of bridge pier (1)
(5), two of which sandbox (5) is located at the left side and right side of the first permanent bearing (11) at the top of bridge pier (1) respectively, and two other is husky
Case (5) is located at the left side and right side of the second permanent bearing (13) at the top of bridge pier (1) respectively, is provided with and is located in the bridge pier (1)
The first tension reinforcing steel bar is provided with first sleeve (2) and the second sleeve pipe (3) below the sandbox (5), the first sleeve (2)
(4), the lower end of first tension reinforcing steel bar (4) is fixed in the bridge pier (1), the upper end of first tension reinforcing steel bar (4) to
On pass corresponding sandbox (5), the upper end of first tension reinforcing steel bar (4) passes the position of sandbox (5) and is cased with first
Nut (7)；The second tension reinforcing steel bar (8) is provided with second sleeve pipe (3), the lower end of second tension reinforcing steel bar (8) is fixed
In the bridge pier (1), the upper end of second tension reinforcing steel bar (8) passes sandbox (5) corresponding thereto and beam upwards successively
Plate (12), the position that second tension reinforcing steel bar (8) passes the beam slab (12) are cased with the second top nut (10), the beam slab
(12) the 3rd sleeve pipe (19) passed through for the second tension reinforcing steel bar (8) is provided with；
Arrange between the sandbox (5) on the left of sandbox (5) and the second permanent bearing (13) on the left of the first permanent bearing (11)
There is the first interim pad (14), on the right side of the sandbox (5) and the second permanent bearing (13) on the right side of the first permanent bearing (11)
The second interim pad (15) is provided between sandbox (5)；
The lower end of the first sleeve (2) and the lower end of the second sleeve pipe (3) are reserved with injected hole.
2. the temporary support of a kind of firm structure Continuous Bridge according to claim 1, it is characterised in that：It is also interim including the 3rd
Pad (16), the 4th interim pad (17) and the 5th interim pad (18), the 3rd interim pad (16) are arranged on described
Between one permanent bearing (11) and the second permanent bearing (13), the 4th interim pad (17) is arranged on described first permanent
Between seat (11) and the sandbox (5) on the left of which, between the 3rd interim pad (16) and the first interim pad (14) and second forever
Long between bearing (13) and the sandbox (5) on the left of which, the 5th interim pad (18) is arranged on the described first permanent bearing
(11) between the sandbox (5) and on the right side of which, between the 3rd interim pad (16) and the second interim pad (15) and second is permanent
Between bearing (13) and the sandbox (5) on the right side of which.
3. the temporary support of a kind of firm structure Continuous Bridge according to claim 2, it is characterised in that：Described first interim
Pad (14) and the second interim pad (15) are made by pad I-steel, and the pad I-steel is set in upper and lower layer cloth；It is described
3rd interim pad (16), the 4th interim pad (17) and the 5th interim pad (18) are by lower floor's chock and upper strata I-shaped steel
Into the upper strata I-steel is arranged on the top surface of lower floor's chock.
4. the temporary support of a kind of firm structure Continuous Bridge according to claim 1, it is characterised in that：Sandbox (5) bag
Include base plate (5-1), cover plate (5-7) and the left plate (5-2) being arranged between the base plate (5-1) and cover plate (5-7), right side
Plate (5-13), front side board (5-8) and back side panel (5-16), the lower end of the left plate (5-2), the lower end of right plate (5-13),
The lower end of front side board (5-8) and the lower end of back side panel (5-16) are connected with base plate (5-1), the upper end of the left plate (5-2),
The upper end of the upper end, the upper end of front side board (5-8) and back side panel (5-16) of right plate (5-13) is connected with cover plate (5-7), institute
The left end for stating front side board (5-8) is connected with left plate (5-2), and the right-hand member of the front side board (5-8) is connected with right plate (5-13),
The left end of the back side panel (5-16) is connected with left plate (5-2), right-hand member and the right plate (5-13) of the back side panel (5-16)
Connection, the base plate (5-1), cover plate (5-7), left plate (5-2), right plate (5-13), front side board (5-8) and back side panel (5-
16) surround for containing the chamber of sand, offer on the base plate (5-1) for the first tension reinforcing steel bar (4) pass through first under
Through hole and the second lower through-hole passed through for the second tension reinforcing steel bar (8), offer for the first tension reinforcing steel bar on the cover plate (5-7)
(4) on first for passing through through hole (5-21) and for the second tension reinforcing steel bar (8) pass through second on through hole (5-22), the left plate
(5-2) and offer on right plate (5-13) and unload husky hole, described unloading is provided with closure bolt (5-23) in husky hole.
5. the temporary support of a kind of firm structure Continuous Bridge according to claim 4, it is characterised in that：Front side board (the 5-
8) and left plate (5-2), the front side board (5-8) and right plate (5-13), the back side panel (5-16) and left plate (5-2) with
And back side panel (5-16) and right plate (5-13) are flange connection.
6. the temporary support of a kind of firm structure Continuous Bridge according to claim 5, it is characterised in that：Front side board (the 5-
8) left end is provided with the first left flanged plate (5-6), and the right-hand member of the front side board (5-8) is provided with the first right flanged plate (5-
12), the left end of the back side panel (5-16) is provided with the second left flanged plate (5-19), and the right-hand member of the back side panel (5-16) is arranged
There is the second right flanged plate (5-20), the front end of the left plate (5-2) is connected by high-strength bolt with the first left flanged plate (5-6)
Connect, the rear end of the left plate (5-2) is connected by high-strength bolt with the second left flanged plate (5-19), the right plate (5-13)
Front end be connected by high-strength bolt with the first right flanged plate (5-12), the rear end of the right plate (5-13) and the second right flange
Plate (5-20) is connected by high-strength bolt.
7. the temporary support of a kind of firm structure Continuous Bridge according to claim 4, it is characterised in that：Including for connecting a left side
First screw rod (5-3) of side plate (5-2) and right plate (5-13) and for connecting front side board (5-8) and back side panel (5-16)
Second screw rod (5-9), the left end of first screw rod (5-3) stretch out left plate (5-2) and at the position for stretching out left plate (5-2)
Left nut (5-4) is cased with, the right-hand member of first screw rod (5-3) stretches out right plate (5-13) and stretching out right plate (5-13)
Position is cased with right nut (5-15), and the front end of second screw rod (5-9) is stretched out front side board (5-8) and stretching out front side board (5-
8) position is cased with front nut (5-10), and the rear end of second screw rod (5-9) is stretched out back side panel (5-16) and stretching out rear side
The position of plate (5-16) is cased with back nut (5-18).
8. the temporary support of a kind of firm structure Continuous Bridge according to claim 7, it is characterised in that：Left nut (the 5-
4) be provided with the left backing plate (5-5) being enclosed within the first screw rod (5-3) and left plate (5-2) between, the right nut (5-15) with
Be provided with the right backing plate (5-14) being enclosed within the first screw rod (5-3) between right plate (5-13), the front nut (5-10) with it is front
The front backing plate (5-11) being enclosed within the second screw rod (5-9), the back nut (5-18) and back side panel are provided between side plate (5-8)
(5-16) the rear backing plate (5-17) being enclosed within the second screw rod (5-9) is provided between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021768.6A CN105463985B (en) | 2016-01-14 | 2016-01-14 | A kind of temporary support of firm structure Continuous Bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021768.6A CN105463985B (en) | 2016-01-14 | 2016-01-14 | A kind of temporary support of firm structure Continuous Bridge |
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| Publication Number | Publication Date |
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| CN105463985A CN105463985A (en) | 2016-04-06 |
| CN105463985B true CN105463985B (en) | 2017-03-29 |
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| CN201610021768.6A Active CN105463985B (en) | 2016-01-14 | 2016-01-14 | A kind of temporary support of firm structure Continuous Bridge |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230259B (en) * | 2018-08-21 | 2021-05-28 | 中铁十八局集团有限公司 | Bridge cantilever casting pier top beam section and rapid construction method thereof |
| CN110552546B (en) * | 2019-09-18 | 2020-11-10 | 中建二局第二建筑工程有限公司 | Method for building underground parking lot waterproof facility by using tower crane |
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| CN105463985A (en) | 2016-04-06 |
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