CN205329527U - Temporary support of continuous bridge has just been constructed - Google Patents
Temporary support of continuous bridge has just been constructed Download PDFInfo
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- CN205329527U CN205329527U CN201620035557.3U CN201620035557U CN205329527U CN 205329527 U CN205329527 U CN 205329527U CN 201620035557 U CN201620035557 U CN 201620035557U CN 205329527 U CN205329527 U CN 205329527U
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- steel bar
- reinforcing steel
- temporary support
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Abstract
The utility model discloses a temporary support of continuous bridge has just been constructed, including setting up four sandboxs at the pier top, set up first sleeve pipe and second sleeve pipe in the pier, first cover is intraductal to set up first stretch -draw reinforcing bar, and first stretch -draw reinforcing bar lower extreme is fixed in the pier, and first stretch -draw reinforcing bar upper end makes progress and wears out the sandbox, and the position cover of wearing out the sandbox on the first stretch -draw reinforcing bar has first top nut, the intraductal second stretch -draw reinforcing bar that sets up of second cover, the lower extreme of second stretch -draw reinforcing bar is fixed in the pier, and sandbox and beam slab are upwards worn out in proper order in the upper end of second stretch -draw reinforcing bar, and the position cover that the beam slab was worn out to second stretch -draw reinforcing bar has the second top nut, is provided with the third sleeve pipe that supplies second stretch -draw reinforcing bar to pass in the beam slab. This temporary support can effectively solve continuous beam temporary support work progress complicated, should not pour fast and demolish, the efficiency of construction is low, the expense drops into high, construction period and delays the scheduling problem.
Description
Technical field
This utility model belongs to firm structure Continuous Bridge technical field of construction, is specifically related to the temporary support of a kind of firm structure Continuous Bridge。
Background technology
Temporary support refers to the bearing being laid in top of bridge pier both sides for the firm structure Continuous Bridge of temporary support, and its purpose is for ensureing firm structure Continuous Bridge uniform force, structural safety。In decades, Construction of continuous beam has been used up comparatively traditional construction technique, adopts reinforced concrete as temporary support。Various construction drawing is seen everywhere。Conventional construction method is to utilize reinforced mesh and high strength concrete as support, and work progress specifically includes following operation: temporary support reinforcing bar pier shaft is pre-buried, temporary support reinforcing bar binding, temporary support formwork erection, temporary support are built, temporary support anchors at 0# block。
In practice of construction process, when adopting traditional reinforced concrete temporary support to construct, there is problem and the difficulty of following four aspect:
The first, work progress is more complicated: need pier shaft top embedded bar, temporary support carries out reinforcing bar binding and to do 5cm thickness sulphur-bonded mortar, sulphur-bonded mortar need to carry out on-the-spot proportioning test, mortar strength is not less than 50MPa, pre-buried resistance wire in mortar, with formwork reinforcement and build temporary support concrete, utilize resistance wire energising scorification in the future, then utilize traditional handicraft that temporary support is cut。
The second, construction cuts difficulty: utilizing air compressor machine and pneumatic pick to cut, work surface is narrow and small, and concrete strength is high, should not cut, spended time length, affect the full-bridge system transform time。Environmental pollution is big, and workman's body harm is big, and labor intensity is high。
3rd, efficiency of construction is relatively low: owing to being designed with it being C40 reinforced concrete, adopts oxygen and acetylene to carry out cutting off reinforcing bar, cut the time long in cutting process, and workload is big, and progress is slow。Generally cut 4 temporary supports and need about 1 month, extreme influence working procedure progress。
4th, construction cost is high: construction adopts reinforced concrete as temporary support, former material and cut and plant equipment expense is high, spends a large amount of manpower, financial resources and material resources。
Utility model content
The purpose of this utility model is in that to overcome above-mentioned deficiency of the prior art, it is provided that the temporary support of a kind of firm structure Continuous Bridge。The simple in construction of this temporary support, reasonable in design, easy construction and the construction period is short, construction effect is good, can easy, quickly and safety complete the replacement work of continuous beam temporary support, can effectively solve that continuous beam temporary support work progress fast pouring complicated, unsuitable and dismounting, efficiency of construction be low, expense puts into the problems such as height, construction period delay。
For achieving the above object, the technical solution adopted in the utility model is: the temporary support of a kind of firm structure Continuous Bridge, it is characterized in that: include being arranged on four sandboxs of pier coping portion, two of which sandbox lays respectively at left side and the right side of the permanent bearing of pier coping portion first, two other sandbox lays respectively at left side and the right side of the permanent bearing of pier coping portion second, it is provided with in described bridge pier and is positioned at first sleeve below described sandbox and the second sleeve pipe, the first tension reinforcing steel bar it is provided with in described first sleeve, the lower end of described first tension reinforcing steel bar is fixed in described bridge pier, the upper end of described first tension reinforcing steel bar upwards passes corresponding sandbox, the upper end of described first tension reinforcing steel bar passes the position of sandbox and is cased with the first top nut；It is provided with the second tension reinforcing steel bar in described second sleeve pipe, the lower end of described second tension reinforcing steel bar is fixed in described bridge pier, the upper end of described second tension reinforcing steel bar upwards passes sandbox corresponding thereto and beam slab successively, the position that described second tension reinforcing steel bar passes described beam slab is cased with the second top nut, is provided for the 3rd sleeve pipe of the second tension reinforcing steel bar traverse in described beam slab。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterized in that: between the sandbox on the left of the described first permanent bearing and the sandbox on the left of the second permanent bearing, be provided with the first interim pad, between the sandbox on the right side of the described first permanent bearing and the sandbox on the right side of the second permanent bearing, be provided with the second interim pad。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterized in that: also include the 3rd interim pad, 4th interim pad and the 5th interim pad, described 3rd interim pad is arranged between the described first permanent bearing and the second permanent bearing, it is permanent between bearing and the sandbox on the left of it that described 4th interim pad is arranged on described first, between 3rd interim pad and the first interim pad and second permanent between bearing and the sandbox on the left of it, it is permanent between bearing and the sandbox on the right side of it that described 5th interim pad is arranged on described first, between 3rd interim pad and the second interim pad and second permanent between bearing and the sandbox on the right side of it。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that: the described first interim pad and the second interim pad are made by pad I-steel, and described pad I-steel is that upper and lower layer cloth sets；Described 3rd interim pad, the 4th interim pad and the 5th interim pad are made by lower floor's chock and upper strata I-steel, and described upper strata I-steel is arranged on the end face of described lower floor chock。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterized in that: described sandbox includes base plate, cover plate and be arranged on the left plate between described base plate and cover plate, right plate, front side board and back side panel, the lower end of described left plate, the lower end of right plate, the lower end of front side board and the lower end of back side panel are all connected with base plate, the upper end of described left plate, the upper end of right plate, the upper end of front side board and the upper end of back side panel are all connected with cover plate, the left end of described front side board is connected with left plate, the right-hand member of described front side board is connected with right plate, the left end of described back side panel is connected with left plate, the right-hand member of described back side panel is connected with right plate, described base plate, cover plate, left plate, right plate, front side board and back side panel surround the chamber for containing sand, described base plate offers the first lower through-hole for the first tension reinforcing steel bar traverse and the second lower through-hole for the second tension reinforcing steel bar traverse, described cover plate offers for the first tension reinforcing steel bar traverse first on through hole and for the second tension reinforcing steel bar traverse second on through hole, described left plate and right plate all offer and unloads husky hole, described unloading in husky hole is provided with closure bolt。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterised in that: described front side board and left plate, described front side board and right plate, described back side panel and left plate and back side panel and right plate are Flange joint。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterized in that: the left end of described front side board is provided with the first left flanged plate, the right-hand member of described front side board is provided with the first right flanged plate, the left end of described back side panel is provided with the second left flanged plate, the right-hand member of described back side panel is provided with the second right flanged plate, the front end of described left plate is connected by high-strength bolt with the first left flanged plate, the rear end of described left plate is connected by high-strength bolt with the second left flanged plate, the front end of described right plate is connected by high-strength bolt with the first right flanged plate, the rear end of described 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 characterized in that: include the first screw rod for connecting left plate and right plate and for connecting the second screw rod of front side board and back side panel, the left end of described first screw rod stretches out left plate and is cased with left nut at the position stretching out left plate, the right-hand member of described first screw rod stretches out right plate and is cased with right nut at the position stretching out right plate, the front end of described second screw rod is stretched out front side board and is cased with front nut at the position stretching out front side board, the rear end of described second screw rod is stretched out back side panel and is cased with back nut at the position stretching out back side panel。
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, it is characterized in that: between described left nut and left plate, be provided with the left backing plate being enclosed within the first screw rod, the right backing plate being enclosed within the first screw rod it is provided with between described right nut and right plate, it is provided with the front backing plate being enclosed within the second screw rod between described front nut and front side board, between described back nut and back side panel, 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 described first sleeve and the lower end of the second sleeve pipe are all reserved with injected hole。
This utility model compared with prior art has the advantage that
1, simple in construction of the present utility model, reasonable in design and input cost is relatively low, it is achieved convenient。
2, constructing operation of the present utility model is simple, easy construction, difficulty of construction are low and efficiency of construction is high, after adopting sandbox to substitute concrete temporary support technique, can be effectively improved work efficiency。
3, construction effect of the present utility model is good and construction cost is low, and construction safety is guaranteed, can produce bigger positive effect, economic benefit and social benefit notable。
4, this utility model is easily removed when construction terminates, and when workmen removes, labor intensity is low, and expense is low, and consuming time few, labour force puts into little。
5, this utility model sets up interim pad again on the basis of sandbox, effectively increases lifting surface area。
6, this utility model is by arranging the first screw rod, it is possible to effective left plate and right plate tensions connects, by arranging the second screw rod, it is possible to effective front side board and back side panel tensions connects, and the bulk strength that so can make sandbox is more firm。
7, this utility model adopts sandbox to substitute concrete temporary support technique, and construction technology is simple, convenient and swift, saves the time in installation and demolishing process and reduces labor intensity, improving efficiency of construction。Save and construction puts into construction cost, effectively save resource, reduce the impact that workman is healthy in cutting process, reduce dust to air pollution。
Below by drawings and Examples, the technical solution of the utility model is described in further detail。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model。
Fig. 2 is the A-A sectional view of Fig. 1。
Fig. 3 is the structural representation of this utility model sandbox。
Fig. 4 is the top view of Fig. 3。
Description of reference numerals:
1 bridge pier；2 first sleeve；3 second sleeve pipes；
4 first tension reinforcing steel bars；5 sandboxs；5-1 base plate；
5-2 left plate；5-3 the first screw rod；The left nut of 5-4；
The left backing plate of 5-5；The left flanged plate of 5-6 first；5-7 cover plate；
5-8 front side board；5-9 the second screw rod；5-10 front nut；
Backing plate before 5-11；The right flanged plate of 5-12 first；5-13 right plate；
The right backing plate of 5-14；The right nut of 5-15；5-16 back side panel；
Backing plate after 5-17；5-18 back nut；The left flanged plate of 5-19 second；
The right flanged plate of 5-20 second；Through hole on 5-21 first；Through hole on 5-22 second；
5-23 blocks bolt；6 first upper padding plates；7 first top nuts；
8 second tension reinforcing steel bars；9 second upper padding plates；10 second top nuts；
11 first permanent bearings；12 beam slabs；13 second permanent bearings；
14 first interim pads；15 second interim pads；16 the 3rd interim pads；
17 the 4th interim pads；18 the 5th interim pads。
Detailed description of the invention
Such as Fig. 1, Fig. 2, the temporary support of a kind of firm structure Continuous Bridge shown in Fig. 3 and Fig. 4, including four sandboxs 5 being arranged on bridge pier 1 top, two of which sandbox 5 lays respectively at left side and the right side of the permanent bearing 11 in bridge pier 1 top first, two other sandbox 5 lays respectively at left side and the right side of the permanent bearing 13 in bridge pier 1 top second, it is provided with in described bridge pier 1 and is positioned at first sleeve 2 below described sandbox 5 and the second sleeve pipe 3, the first tension reinforcing steel bar 4 it is provided with in described first sleeve 2, the lower end of described first tension reinforcing steel bar 4 is fixed in described bridge pier 1, the upper end of described first tension reinforcing steel bar 4 upwards passes corresponding sandbox 5, the upper end of described 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 the second tension reinforcing steel bar 8 in described second sleeve pipe 3, the lower end of described second tension reinforcing steel bar 8 is fixed in described bridge pier 1, the upper end of described second tension reinforcing steel bar 8 upwards passes sandbox 5 corresponding thereto and beam slab 12 successively, the position that described second tension reinforcing steel bar 8 passes described beam slab 12 is cased with the second top nut 10, is provided for the 3rd sleeve pipe 19 of the second tension reinforcing steel bar 8 traverse in described beam slab 12。
In the present embodiment, cooperated the temporary support constituted for supporting firm structure Continuous Bridge by four sandboxs 5, it is possible to is effectively ensured the uniform force of firm structure Continuous Bridge, it is ensured that structural safety。And when adopting sandbox 5 as temporary support, its construction technology is simple, convenient and swift, save the time in installation and demolishing process and reduce labor intensity, improve efficiency of construction, save and construction puts into construction cost, effectively save resource, reduces the impact that workman is healthy in cutting process, reduces dust to air pollution。
In the present embodiment, by first sleeve 2 pre-buried in bridge pier 1, facilitate the later stage dismounting to the first tension reinforcing steel bar 4, in like manner, by second sleeve pipe 3 pre-buried in bridge pier 1 and in beam slab 12 pre-buried 3rd sleeve pipe 19, facilitate the later stage dismounting to the second tension reinforcing steel bar 8。And due to sand closely knit in sandbox 5, can conveniently when stretch-draw the first tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8, first tension reinforcing steel bar 4 all can move by relative sandbox 5 with the second tension reinforcing steel bar 8, and eliminate the trouble installing sleeve pipe, and sand closely knit in sandbox 5 also has good load performance。
As shown in Figure 2, it is provided with the first interim pad 14 between sandbox 5 on the left of described first permanent bearing 11 and the sandbox 5 on the left of the second permanent bearing 13, between the sandbox 5 on the right side of the described first permanent bearing 11 and the sandbox 5 on the right side of the second permanent bearing 13, is provided with the second interim pad 15。
As depicted in figs. 1 and 2, this temporary support also includes the 3rd interim pad 16, 4th interim pad 17 and the 5th interim pad 18, described 3rd interim pad 16 is arranged between the described first permanent bearing 11 and the second permanent bearing 13, it is permanent between bearing 11 and the sandbox on the left of it 5 that described 4th interim pad 17 is arranged on described first, between 3rd interim pad 16 and the first interim pad 14 and second permanent between bearing 13 and the sandbox on the left of it 5, it is permanent between bearing 11 and the sandbox on the right side of it 5 that described 5th interim pad 18 is arranged on described first, between 3rd interim pad 16 and the second interim pad 15 and second permanent between bearing 13 and the sandbox on the right side of it 5。
In the present embodiment, by setting up interim pad, it is possible to the firm structure Continuous Bridge of significantly more efficient support, make being more uniformly stressed of firm structure Continuous Bridge, effectively increase and the lifting surface area of beam slab 12。
In the present embodiment, the described first interim pad 14 and the second interim pad 15 are made by pad I-steel, and described pad I-steel is that upper and lower layer cloth sets, and every layer has two row's pad I-steel；The described 3rd interim pad 17 of interim pad the 16, the 4th and the 5th interim pad 18 are made by lower floor's chock and upper strata I-steel, and described upper strata I-steel is arranged on the end face of described lower floor chock。Drawing materials conveniently of above-mentioned each interim pad, cost of manufacture is low。
As shown in Figure 3 and Figure 4, described sandbox 5 includes base plate 5-1, cover plate 5-7 and be arranged on the left plate 5-2 between described base plate 5-1 and cover plate 5-7, right plate 5-13, front side board 5-8 and back side panel 5-16, the lower end of described 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 all connected with base plate 5-1, the upper end of described left plate 5-2, the upper end of right plate 5-13, the upper end of front side board 5-8 and the upper end of back side panel 5-16 are all connected with cover plate 5-7, the left end of described front side board 5-8 is connected with left plate 5-2, the right-hand member of described front side board 5-8 is connected with right plate 5-13, the left end of described back side panel 5-16 is connected with left plate 5-2, the right-hand member of described back side panel 5-16 is connected with right plate 5-13, described 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 surrounds the chamber for containing sand, described base plate 5-1 offers the first lower through-hole for the first tension reinforcing steel bar 4 traverse and the second lower through-hole for the second tension reinforcing steel bar 8 traverse, described cover plate 5-7 offers for the first tension reinforcing steel bar 4 traverse first on through hole 5-21 and for the second tension reinforcing steel bar 8 traverse second on through hole 5-22, on described first, through hole 5-21 is corresponding with described first lower through-hole, on described second, through hole 5-22 is corresponding with described second lower through-hole, described left plate 5-2 and right plate 5-13 all offers and unloads husky hole, described unloading is provided with closure bolt 5-23 in husky hole。In the present embodiment, described closure bolt 5-23 is high-strength bolt。
In the present embodiment, described front side board 5-8 and left plate 5-2, described front side board 5-8 and right plate 5-13, described back side panel 5-16 and left plate 5-2 and back side panel 5-16 and right plate 5-13 are Flange joint。By Flange joint, being connected firmly of each side plate of sandbox 5 can either be guaranteed, be also convenient for the dismounting in later stage simultaneously。
As shown in Figure 3 and Figure 4, in the present embodiment, the left end of described front side board 5-8 is provided with the first left flanged plate 5-6, the right-hand member of described front side board 5-8 is provided with the first right flanged plate 5-12, the left end of described back side panel 5-16 is provided with the second left flanged plate 5-19, the right-hand member of described back side panel 5-16 is provided with the second right flanged plate 5-20, the front end of described left plate 5-2 is connected with the first left flanged plate 5-6 high-strength bolt, the rear end of described left plate 5-2 is connected with the second left flanged plate 5-19 high-strength bolt, the front end of described right plate 5-13 is connected with the first right flanged plate 5-12 high-strength bolt, the rear end of described right plate 5-13 is connected with the second right flanged plate 5-20 high-strength bolt。
As shown in Figure 3 and Figure 4, described sandbox 5 also includes the first screw rod 5-3 for connecting left plate 5-2 and right plate 5-13 and for connecting the second screw rod 5-9 of front side board 5-8 and back side panel 5-16, the left end of described first screw rod 5-3 stretches out left plate 5-2 and is cased with left nut 5-4 at the position stretching out left plate 5-2, the right-hand member of described first screw rod 5-3 stretches out right plate 5-13 and is cased with right nut 5-15 at the position stretching out right plate 5-13, the front end of described second screw rod 5-9 is stretched out front side board 5-8 and is cased with front nut 5-10 at the position stretching out front side board 5-8, the rear end of described second screw rod 5-9 is stretched out back side panel 5-16 and is cased with back nut 5-18 at the position stretching out back side panel。
In the present embodiment, by arranging the first screw rod 5-3, it is possible to effective tension by left plate 5-2 and right plate 5-13 connects, by arranging the second screw rod 5-9, effectively can being strained by front side board 5-8 and back side panel 5-16 and connect, the bulk strength that so can make sandbox 5 is more firm。
As shown in Figure 3 and Figure 4, the left backing plate 5-5 being enclosed within the first screw rod 5-3 it is provided with between described left nut 5-4 and left plate 5-2, the right backing plate 5-14 being enclosed within the first screw rod 5-3 it is provided with between described right nut 5-15 and right plate 5-13, it is provided with the front backing plate 5-11 being enclosed within the second screw rod 5-9 between described front nut 5-10 and front side board 5-8, between described back nut 5-18 and back side panel 5-16, is provided with the rear backing plate 5-17 being enclosed within the second screw rod 5-9。By arranging left backing plate 5-5, it is able to ensure that left plate 5-2 will not be caused damage when screwing by left nut 5-4, by arranging right backing plate 5-14, it is able to ensure that right plate 5-13 will not be caused damage when screwing by right nut 5-15, by arranging front backing plate 5-11, it can be ensured that front side board 5-8 will not be caused damage when screwing by front nut 5-10, in like manner, by arranging rear backing plate 5-17, it can be ensured that back side panel 5-16 will not be caused damage when screwing by back nut 5-18。
In conjunction with Fig. 1 and Fig. 3, it is provided with the first upper padding plate 6 being enclosed within the first tension reinforcing steel bar 4 between described first top nut 7 and cover plate 5-7, between described second top nut 10 and beam slab 12, is provided with the second upper padding plate 9 being enclosed within the second tension reinforcing steel bar 8。
In the present embodiment, this temporary support is when construction, first under the top of bridge pier 1, pre-buried the first tension reinforcing steel bar 4 being made up of 32mm finish rolling steel in 10m place and the second tension reinforcing steel bar 8 extend to bridge pier 1 pier top, pre-buried quantity is each sandbox 5 position is 21, wherein three is the first tension reinforcing steel bar 4, remaining is the second tension reinforcing steel bar 8, adopt φ 50mm conduit peschel as first sleeve 2 in the outside of the first tension reinforcing steel bar 4, adopt φ 50mm conduit peschel as the second sleeve pipe 3 in the outside of the second tension reinforcing steel bar 8, first sleeve 2 and second sleeve pipe 3 length inside bridge pier 1 are about 9.86m。The lower end of first sleeve 2 is stretched out in the lower end of the first tension reinforcing steel bar 4, and nut and pad are installed in extending area, the lower end of the second sleeve pipe 3 is stretched out in the lower end of the second tension reinforcing steel bar 8, and nut and pad are installed in extending area, injected hole all it is reserved with in the lower end of the lower end of first sleeve 2 and the second sleeve pipe 3, thus for ensureing after later stage sandbox 5 is removed, it is possible to bridge pier 1 is carried out injecting treatment。
It follows that control pier construction height and pier top longitudinal gradient well。The length of described first tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8 is about 0.8m, lengthens bottom each sandbox 5 by pre-buried the first tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8 come up of bridge pier 1。Then the sandbox 5 base plate 5-1 leaving through hole is installed, sandbox 5 four cycle side plate is installed again, utilize and the closure locked sandbox 5 of bolt 5-23 unloads husky hole, install, in each sandbox 5, the fine sand dried in advance, sand installs height slightly above sandbox 5 top about 2cm (height of sandbox 5 is 56cm), then the cover plate 5-7 of sandbox 5 is installed again, sandbox 5 is carried out precompressed by three first tension reinforcing steel bars 4 of stretch-draw, stretching force is 200kN, make sand more closely knit, if any space, take off the cover plate 5-7 of sandbox 5, secondary fills sand, two times tensioning, until the sand in sandbox 5 is closely knit。The sandbox 5 that stretch-draw is completed, screws the first top nut 7 on the first tension reinforcing steel bar 4, the locked sandbox 5 of purpose, it is prevented that the secondary of sandbox 5 relaxes。
Treat that sandbox 5 stretch-draw is closely knit, first permanent bearing 11 and the second permanent bearing 13 are installed, after permanent bearing installation, between sandbox 5 on the left of the first permanent bearing 11 and the sandbox 5 on the left of the second permanent bearing 13, the first interim pad 14 is set, it is provided with the second interim pad 15 between sandbox 5 on the right side of the first permanent bearing 11 and the sandbox 5 on the right side of the second permanent bearing 13, between the described first permanent bearing 11 and the second permanent bearing 13, the 3rd interim pad 16 is set, permanent between bearing 11 and the sandbox on the left of it 5 described first, between 3rd interim pad 16 and the first interim pad 14 and second permanent 4th interim pad 17 is set between bearing 13 and the sandbox on the left of it 5, permanent between bearing 11 and the sandbox on the right side of it 5 described first, between 3rd interim pad 16 and the second interim pad 15 and second permanent 5th interim pad 18 is set between bearing 13 and the sandbox on the right side of it 5。The height of above-mentioned interim pad is 60cm。Can have make being more uniformly stressed of firm structure Continuous Bridge by arranging interim pad, effectively increase and the lifting surface area of beam slab 12, then bed die and side form, colligation base plate, web, roof steel bar, installation web and door opening then the beam slab 12 by 18 second tension reinforcing steel bar 8 spreadings in each sandbox 5 to 0,1# block are re-layed。
Until 0,1# block reinforcing bar binding completes, model sheetinstallat completes and after concrete placings completes。After concrete reaches design strength, the second tension reinforcing steel bar 8 on the beam slab 12 of 0# block being carried out stretch-draw, the stretching force of every second tension reinforcing steel bar 8 is 100kN。After stretch-draw completes, by screwing the second top nut 10, second tension reinforcing steel bar 8 is locked。
When full-bridge carries out system transform the (the 12nd, 13 after closing up) first put at 0# block back and open and unclamp the second top nut 10, before removing each sandbox 5, first remove the closure bolt 5-23 on sandbox 5, husky hole is unloaded by sand releasing from described, after sandbox 5 to be removed, pull down adapter everywhere, first tension reinforcing steel bar 4 is extracted out in first sleeve 2, and in the second sleeve pipe 3 and the 3rd sleeve pipe 19, second tension reinforcing steel bar 8 is extracted out, finally by the injected hole on first sleeve 2 and the 3rd sleeve pipe 3, first sleeve 2 and the 3rd sleeve pipe 3 are carried out injecting treatment, the 3rd sleeve pipe 19 in beam slab 12 is carried out concrete placings, adopt and carry out having built with label concrete。Finally remove each interim pad again。Bridge pier 1 pier top sliding support surrounding being anchored system remove, the first permanent bearing 11 and the second permanent bearing 13 can produce sliding during stress。
The above; it it is only preferred embodiment of the present utility model; not this utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation above example made according to this utility model technical spirit, all still falls within the protection domain of technical solutions of the utility model。
Claims (10)
1. the temporary support of a firm structure Continuous Bridge, it is characterized in that: include being arranged on four sandboxs (5) at bridge pier (1) top, two of which sandbox (5) lays respectively at left side and the right side of the permanent bearing (11) in bridge pier (1) top first, two other sandbox (5) lays respectively at left side and the right side of the permanent bearing (13) in bridge pier (1) top second, the first sleeve (2) and the second sleeve pipe (3) that are positioned at described sandbox (5) lower section it is provided with in described bridge pier (1), the first tension reinforcing steel bar (4) it is provided with in described first sleeve (2), the lower end of described first tension reinforcing steel bar (4) is fixed in described bridge pier (1), the upper end of described first tension reinforcing steel bar (4) upwards passes corresponding sandbox (5), the upper end of described 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 the second tension reinforcing steel bar (8) in described second sleeve pipe (3), the lower end of described second tension reinforcing steel bar (8) is fixed in described bridge pier (1), the upper end of described second tension reinforcing steel bar (8) upwards passes sandbox (5) corresponding thereto and beam slab (12) successively, the position that described second tension reinforcing steel bar (8) passes described beam slab (12) is cased with the second top nut (10), is provided for the 3rd sleeve pipe (19) of the second tension reinforcing steel bar (8) traverse in described beam slab (12)。
2. the temporary support of a kind of firm structure Continuous Bridge according to claim 1, it is characterized in that: between sandbox (5) and the sandbox (5) in the second permanent bearing (13) left side in the described first permanent bearing (11) left side, be provided with the first interim pad (14), between sandbox (5) and the sandbox (5) on the second permanent bearing (13) right side on the described first permanent bearing (11) right side, be provided with the second interim pad (15)。
3. the temporary support of a kind of firm structure Continuous Bridge according to claim 2, it is characterized in that: also include the 3rd interim pad (16), 4th interim pad (17) and the 5th interim pad (18), described 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 (5) on the left of it, between 3rd interim pad (16) and the first interim pad (14) and between the second permanent bearing (13) and the sandbox (5) on the left of it, described 5th interim pad (18) is arranged between the described first permanent bearing (11) and the sandbox (5) on the right side of it, between 3rd interim pad (16) and the second interim pad (15) and between the second permanent bearing (13) and the sandbox (5) on the right side of it。
4. the temporary support of a kind of firm structure Continuous Bridge according to claim 3, it is characterized in that: the described first interim pad (14) and the second interim pad (15) are made by pad I-steel, and described pad I-steel is that upper and lower layer cloth sets；Described 3rd interim pad (16), the 4th interim pad (17) and the 5th interim pad (18) are made by lower floor's chock and upper strata I-steel, and described upper strata I-steel is arranged on the end face of described lower floor chock。
5. the temporary support of a kind of firm structure Continuous Bridge according to claim 1, it is characterized in that: described sandbox (5) includes base plate (5-1), cover plate (5-7) and be arranged on the left plate (5-2) between described base plate (5-1) and cover plate (5-7), right plate (5-13), front side board (5-8) and back side panel (5-16), the lower end of described 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 all connected with base plate (5-1), the upper end of described left plate (5-2), the upper end of right plate (5-13), the upper end of front side board (5-8) and the upper end of back side panel (5-16) are all connected with cover plate (5-7), the left end of described front side board (5-8) is connected with left plate (5-2), the right-hand member of described front side board (5-8) is connected with right plate (5-13), the left end of described back side panel (5-16) is connected with left plate (5-2), the right-hand member of described back side panel (5-16) is connected with right plate (5-13), described 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 the chamber for containing sand, described base plate (5-1) offers the first lower through-hole for the first tension reinforcing steel bar (4) traverse and the second lower through-hole for the second tension reinforcing steel bar (8) traverse, described cover plate (5-7) offers for the first tension reinforcing steel bar (4) traverse first on through hole (5-21) and for the second tension reinforcing steel bar (8) traverse second on through hole (5-22), described left plate (5-2) and right plate (5-13) all offer and unloads husky hole, described unloading in husky hole is provided with closure bolt (5-23)。
6. the temporary support of a kind of firm structure Continuous Bridge according to claim 5, it is characterised in that: described front side board (5-8) and left plate (5-2), described front side board (5-8) and right plate (5-13), described back side panel (5-16) and left plate (5-2) and back side panel (5-16) and right plate (5-13) are Flange joint。
7. the temporary support of a kind of firm structure Continuous Bridge according to claim 6, it is characterized in that: the left end of described front side board (5-8) is provided with the first left flanged plate (5-6), the right-hand member of described front side board (5-8) is provided with the first right flanged plate (5-12), the left end of described back side panel (5-16) is provided with the second left flanged plate (5-19), the right-hand member of described back side panel (5-16) is provided with the second right flanged plate (5-20), the front end of described left plate (5-2) is connected by high-strength bolt with the first left flanged plate (5-6), the rear end of described left plate (5-2) is connected by high-strength bolt with the second left flanged plate (5-19), the front end of described right plate (5-13) is connected by high-strength bolt with the first right flanged plate (5-12), the rear end of described right plate (5-13) is connected by high-strength bolt with the second right flanged plate (5-20)。
8. the temporary support of a kind of firm structure Continuous Bridge according to claim 5, it is characterized in that: include the first screw rod (5-3) for connecting left plate (5-2) and right plate (5-13) and be used for connecting second screw rod (5-9) of front side board (5-8) and back side panel (5-16), the left end of described first screw rod (5-3) stretches out left plate (5-2) and is cased with left nut (5-4) at the position stretching out left plate (5-2), the right-hand member of described first screw rod (5-3) stretches out right plate (5-13) and is cased with right nut (5-15) at the position stretching out right plate (5-13), the front end of described second screw rod (5-9) is stretched out front side board (5-8) and is cased with front nut (5-10) at the position stretching out front side board (5-8), the rear end of described second screw rod (5-9) is stretched out back side panel (5-16) and is cased with back nut (5-18) at the position stretching out back side panel (5-16)。
9. the temporary support of a kind of firm structure Continuous Bridge according to claim 8, it is characterized in that: between described left nut (5-4) and left plate (5-2), be provided with the left backing plate (5-5) being enclosed within the first screw rod (5-3), the right backing plate (5-14) being enclosed within the first screw rod (5-3) it is provided with between described right nut (5-15) and right plate (5-13), the front backing plate (5-11) being enclosed within the second screw rod (5-9) it is provided with between described 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) it is provided with between described back nut (5-18) and back side panel (5-16)。
10. the temporary support of a kind of firm structure Continuous Bridge according to claim 1, it is characterised in that: the lower end of described first sleeve (2) and the lower end of the second sleeve pipe (3) are all reserved with injected hole。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035557.3U CN205329527U (en) | 2016-01-14 | 2016-01-14 | Temporary support of continuous bridge has just been constructed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035557.3U CN205329527U (en) | 2016-01-14 | 2016-01-14 | Temporary support of continuous bridge has just been constructed |
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| Publication Number | Publication Date |
|---|---|
| CN205329527U true CN205329527U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620035557.3U Expired - Fee Related CN205329527U (en) | 2016-01-14 | 2016-01-14 | Temporary support of continuous bridge has just been constructed |
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| Country | Link |
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| CN (1) | CN205329527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463985A (en) * | 2016-01-14 | 2016-04-06 | 中铁七局集团第三工程有限公司 | Temporary support for continuous rigid-frame bridge |
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2016
- 2016-01-14 CN CN201620035557.3U patent/CN205329527U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463985A (en) * | 2016-01-14 | 2016-04-06 | 中铁七局集团第三工程有限公司 | Temporary support for continuous rigid-frame bridge |
| CN105463985B (en) * | 2016-01-14 | 2017-03-29 | 中铁七局集团第三工程有限公司 | A kind of temporary support of firm structure Continuous Bridge |
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