CN105463985A - Temporary support for continuous rigid-frame bridge - Google Patents
Temporary support for continuous rigid-frame bridge Download PDFInfo
- Publication number
- CN105463985A CN105463985A CN201610021768.6A CN201610021768A CN105463985A CN 105463985 A CN105463985 A CN 105463985A CN 201610021768 A CN201610021768 A CN 201610021768A CN 105463985 A CN105463985 A CN 105463985A
- Authority
- CN
- China
- Prior art keywords
- plate
- sandbox
- steel bar
- reinforcing steel
- temporary support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a temporary support for a continuous rigid-frame bridge. The temporary support comprises four sand boxes arranged at the top of a pier. First sleeves and second sleeves are arranged in the pier. First tension steel bars are arranged in the first sleeves, the lower ends of the first tension steel bars are fixed in the pier, the upper ends of the first tension steel bars penetrate upwards out of the sand boxes, and the portions, penetrating out of the sand boxes, of the upper ends of the first tension steel bars are sleeved with first upper nuts. Second tension steel bars are arranged in the second sleeves, the lower ends of the second tension steel bars are fixed in the pier, the upper ends of the second tension steel bars penetrate upwards out of the sand boxes and a beam plate in sequence, the portions, penetrating out of the beam plate, of the second tension steel bars are sleeved with second upper nuts, and third sleeves for the second tension steel bars to penetrate through are arranged in the beam plate. The temporary support can effectively solve the problems that the construction process of a temporary support for a continuous beam is complex, the temporary support is not suitable for rapid pouring or dismantling, the construction efficiency is low, the expense input is high, and the construction period is delayed.
Description
Technical field
The invention belongs to firm structure Continuous Bridge technical field of construction, be specifically related to a kind of temporary support of firm structure Continuous Bridge.
Background technology
Temporary support refers to and is laid in the bearing of top of bridge pier both sides for the firm structure Continuous Bridge of temporary support, and its object is for ensureing firm structure Continuous Bridge uniform force, structural safety.In decades, Construction of continuous beam adopts comparatively traditional construction technique always, adopts steel bar concrete as temporary support.Be seen everywhere in various construction drawing.Conventional construction method utilizes reinforced mesh and high strength concrete as support, and work progress specifically comprises 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 is in the anchoring of 0# block.
In practice of construction process, when adopting traditional steel bar concrete temporary support to construct, there is the problems of following four aspects:
The first, work progress is more complicated: need pier shaft top embedded bar, temporary support carries out reinforcing bar binding and will do the thick sulphur-bonded mortar of 5cm, sulphur-bonded mortar need 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 to be energized scorification in the future, then utilize traditional handicraft to cut temporary support.
The second, construction cuts difficulty: utilize air compressor machine and pneumatic pick to cut, work plane is narrow and small, and concrete strength is high, should not cut, spended time is long, affect the full-bridge system transform time.Environment pollution is large, and large to workman's body harm, labour intensity is high.
Three, efficiency of construction is lower: because design employing is C40 steel bar concrete, adopts oxygen and acetylene to carry out cutting off reinforcing bar cutting in process, cut the time long, and greatly, progress is slow for workload.Generally cut 4 temporary supports and need about 1 month, extreme influence working procedure progress.
Four, construction cost is high: construction adopt steel bar concrete as temporary support, former material and cut and plant equipment expense high, spend a large amount of manpower, financial resources and material resources.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of temporary support of firm structure Continuous Bridge is provided.The structure of this temporary support is simple, reasonable in design, easy construction and the construction period is short, construction effect is good, can be easy, fast and safety completes the alternative work of continuous beam temporary support, the problem such as effectively can solve that complicated, the unsuitable fast pouring of continuous beam temporary support work progress and dismounting, efficiency of construction are low, expense drops into high, construction period delay.
For achieving the above object, the technical solution used in the present invention is: a kind of temporary support of firm structure Continuous Bridge, it is characterized in that: comprise four sandboxs being arranged on pier coping portion, wherein two sandboxs lay 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, be provided with in described bridge pier and be positioned at the first sleeve pipe below described sandbox and the second sleeve pipe, the first tension reinforcing steel bar is provided with in described first sleeve pipe, 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 the sandbox corresponding with it, the position cover that the upper end of described first tension reinforcing steel bar passes sandbox has the first top nut, the second tension reinforcing steel bar is provided with 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 cover that described second tension reinforcing steel bar passes described beam slab has the second top nut, is provided with the 3rd sleeve pipe passed for the second tension reinforcing steel bar 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 sandbox on the left of the described first permanent bearing and the second permanent bearing, be provided with the first interim pad, between the sandbox on the right side of the sandbox on the right side of the described first permanent bearing and 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 comprise 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, described 4th interim pad is arranged on described first forever between bearing and the sandbox on the left of it, between 3rd interim pad and the first interim pad and second permanent between bearing and the sandbox on the left of it, described 5th interim pad is arranged on described first forever between bearing and the sandbox on the right side of it, 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, is characterized in that: the described first interim pad and the second interim pad are made by pad i iron, and described pad i iron is that upper and lower layer cloth is established; Described 3rd interim pad, the 4th interim pad and the 5th interim pad are made by lower floor's chock and upper strata i iron, and described upper strata i iron 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 comprises base plate, cover plate and the left plate be arranged 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 is all connected with base plate with the lower end of back side panel, the upper end of described left plate, the upper end of right plate, the upper end of front side board is all connected with cover plate with the upper end of back side panel, 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 splendid attire sand, described base plate offers the first lower through-hole passed for the first tension reinforcing steel bar and the second lower through-hole passed for the second tension reinforcing steel bar, described cover plate offers for the first tension reinforcing steel bar pass first on through hole and for the second tension reinforcing steel bar pass second on through hole, described left plate and right plate all offer and unloads husky hole, described unloading in husky hole is provided with shutoff bolt.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, is characterized 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: comprise for connecting left plate and the first screw rod of right plate and the second screw rod for being connected front side board and back side panel, the left end of described first screw rod stretches out left plate and has left nut at the position cover stretching out left plate, the right-hand member of described first screw rod stretches out right plate and has right nut at the position cover stretching out right plate, the front end of described second screw rod stretch out front side board and stretch out front side board position cover have before nut, the rear end of described second screw rod is stretched out back side panel and is had back nut at the position cover 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 be enclosed within the first screw rod, the right backing plate be enclosed within the first screw rod is provided with between described right nut and right plate, be provided with the front backing plate be enclosed within the second screw rod between described front nut and front side board, between described back nut and back side panel, be provided with the rear backing plate be enclosed within the second screw rod.
The temporary support of above-mentioned a kind of firm structure Continuous Bridge, is characterized in that: the lower end of described first sleeve pipe and the lower end of the second sleeve pipe are all reserved with injected hole.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, reasonable in design and input cost is lower, and it is convenient to realize.
2, constructing operation of the present invention 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 effectively increase work efficiency.
3, construction effect of the present invention is good and construction cost is low, and construction safety is guaranteed, can produce larger positive effect, economic benefit and social benefit remarkable.
4, the present invention easily removes at the end of construction, and when constructor removes, labour intensity is low, and few during expense Di ， Mao, labour drops into little.
5, the present invention sets up interim pad again on the basis of sandbox, effectively increases lifting surface area.
6, the present invention is by arranging the first screw rod, can be effectively connected with right plate tension by left plate, by arranging the second screw rod, effectively can be connected with back side panel tension by front side board, the bulk strength of sandbox can be made so more firm.
7, the present invention adopts sandbox to substitute concrete temporary support technique, and construction technology is simple, convenient and swift, saves time in installation and demolishing process and reduces labour intensity, improves efficiency of construction.Save in construction and drop into construction cost, effectively economize on resources, reduce and impact healthy in process is being cut on workman, reduce dust to air pollution.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of sandbox of the present invention.
Fig. 4 is the top view of Fig. 3.
Description of reference numerals:
1-bridge pier; 2-the first sleeve pipe; 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-shutoff 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.
Detailed description of the invention
As Fig. 1, Fig. 2, the temporary support of a kind of firm structure Continuous Bridge shown in Fig. 3 and Fig. 4, comprise four sandboxs 5 being arranged on bridge pier 1 top, wherein two sandboxs 5 lay 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 pipe 2 and the second sleeve pipe 3 be positioned at below described sandbox 5 is provided with in described bridge pier 1, the first tension reinforcing steel bar 4 is provided with in described first sleeve pipe 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 the sandbox 5 corresponding with it, the position cover that the upper end of described first tension reinforcing steel bar 4 passes sandbox 5 has the first top nut 7, the second tension reinforcing steel bar 8 is provided with 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 cover that described second tension reinforcing steel bar 8 passes described beam slab 12 has the second top nut 10, is provided with the 3rd sleeve pipe 19 passed for the second tension reinforcing steel bar 8 in described beam slab 12.
In the present embodiment, cooperatively interacted by four sandboxs 5 and be configured for supporting the temporary support of firm structure Continuous Bridge, effectively can ensure the uniform force of firm structure Continuous Bridge, ensure that structural safety.And when adopting sandbox 5 as temporary support, its construction technology is simple, convenient and swift, save time in installation and demolishing process and reduce labour intensity, improve efficiency of construction, save in construction and drop into construction cost, effectively economize on resources, reduce and impact healthy in process is being cut on workman, reduce dust to air pollution.
In the present embodiment, by first sleeve pipe 2 pre-buried in bridge pier 1, facilitate the later stage to the dismounting of 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 to the dismounting of the second tension reinforcing steel bar 8.And due to sand closely knit in sandbox 5, can conveniently when stretch-draw first tension reinforcing steel bar 4 and the second tension reinforcing steel bar 8, first tension reinforcing steel bar 4 all can move relative to sandbox 5 with the second tension reinforcing steel bar 8, and eliminate the trouble of mounting sleeve, and sand closely knit in sandbox 5 also has good load performance.
As shown in Figure 2, be 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, be provided with the second interim pad 15.
As depicted in figs. 1 and 2, this temporary support also comprises 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 on described first permanent between bearing 11 and the sandbox on the left of it 5, 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, described 5th interim pad 18 is arranged on described first permanent between bearing 11 and the sandbox on the right side of it 5, 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, more effectively can support firm structure Continuous Bridge, making the stressed more even of firm structure Continuous Bridge, effectively increasing the lifting surface area with beam slab 12.
In the present embodiment, the described first interim pad 14 and the second interim pad 15 are made by pad i iron, and described pad i iron is that upper and lower layer cloth is established, and every layer has two row's pad i iron; 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 iron, and described upper strata i iron 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 comprises base plate 5-1, cover plate 5-7 and the left plate 5-2 be arranged 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 is all connected with base plate 5-1 with the lower end of back side panel 5-16, 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 is all connected with cover plate 5-7 with the upper end of back side panel 5-16, 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 splendid attire sand, described base plate 5-1 offers the first lower through-hole passed for the first tension reinforcing steel bar 4 and the second lower through-hole passed for the second tension reinforcing steel bar 8, described cover plate 5-7 offers for the first tension reinforcing steel bar 4 pass first on through hole 5-21 and for the second tension reinforcing steel bar 8 pass 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 in husky hole is provided with shutoff bolt 5-23.In the present embodiment, described shutoff 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, also facilitate 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 comprises for connecting left plate 5-2 and the first screw rod 5-3 of right plate 5-13 and the second screw rod 5-9 for being connected 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 has left nut 5-4 at the position cover stretching out left plate 5-2, the right-hand member of described first screw rod 5-3 stretches out right plate 5-13 and has right nut 5-15 at the position cover stretching out right plate 5-13, the front end of described second screw rod 5-9 stretch out front side board 5-8 and stretch out front side board 5-8 position cover have before nut 5-10, the rear end of described second screw rod 5-9 is stretched out back side panel 5-16 and is had back nut 5-18 at the position cover stretching out back side panel.
In the present embodiment, by arranging the first screw rod 5-3, can effectively left plate 5-2 be connected, by arranging the second screw rod 5-9 with right plate 5-13 tension, effectively front side board 5-8 can be connected with back side panel 5-16 tension, the bulk strength of sandbox 5 can be made so more firm.
As shown in Figure 3 and Figure 4, the left backing plate 5-5 be enclosed within the first screw rod 5-3 is provided with between described left nut 5-4 and left plate 5-2, the right backing plate 5-14 be enclosed within the first screw rod 5-3 is provided with between described right nut 5-15 and right plate 5-13, be provided with the front backing plate 5-11 be 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, be provided with the rear backing plate 5-17 be enclosed within the second screw rod 5-9.By arranging left backing plate 5-5, can guarantee that left nut 5-4 can not cause damage to left plate 5-2 when screwing, by arranging right backing plate 5-14, can guarantee that right nut 5-15 can not cause damage to right plate 5-13 when screwing, by arranging front backing plate 5-11, can guarantee that front nut 5-10 can not cause damage to front side board 5-8 when screwing, in like manner, by arranging rear backing plate 5-17, can guarantee that back nut 5-18 can not cause damage to back side panel 5-16 when screwing.
Composition graphs 1 and Fig. 3, be provided with the first upper padding plate 6 be enclosed within the first tension reinforcing steel bar 4 between described first top nut 7 and cover plate 5-7, be provided with the second upper padding plate 9 be enclosed within the second tension reinforcing steel bar 8 between described second top nut 10 and beam slab 12.
In the present embodiment, this temporary support is when constructing, first under the top of bridge pier 1, pre-buried the first tension reinforcing steel bar 4 of being made up of 32mm finish rolling steel plays and the second tension reinforcing steel bar 8 extends to bridge pier 1 Dun Ding in 10m place, 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 the first sleeve pipe 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 pipe 2 and the length of the second sleeve pipe 3 inside bridge pier 1 are about 9.86m.The lower end of the first sleeve pipe 2 is stretched out in the lower end of the first tension reinforcing steel bar 4, and at extending area mounting nuts and pad, 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 at extending area mounting nuts and pad, all injected hole is reserved with in the lower end of the lower end of the first sleeve pipe 2 and the second sleeve pipe 3, thus after later stage sandbox 5 is removed, injecting treatment can be carried out to bridge pier 1 for ensureing.
Next, pier construction height and pier top longitudinal gradient is controlled 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 locked sandbox of shutoff bolt 5-23 5 unloads husky hole, the fine sand dried in advance is installed in each sandbox 5, sand installs and exceeds sandbox 5 top about 2cm (height of sandbox 5 is 56cm) highly a little, and then the cover plate 5-7 of sandbox 5 is installed, stretch-draw three first tension reinforcing steel bars 4 pairs of sandboxs 5 carry out precompressed, 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.To the sandbox 5 that stretch-draw completes, screw the first top nut 7 on the first tension reinforcing steel bar 4, the locked sandbox 5 of object, prevent the secondary of sandbox 5 from relaxing.
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, the second interim pad 15 is provided with 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 the stressed more even of firm structure Continuous Bridge by arranging interim pad, effectively increase the lifting surface area with beam slab 12, and then lay bed die and side form, colligation base plate, web, roof steel bar, installation web and door opening, then by the beam slab 12 of 18 second tension reinforcing steel bar 8 spreadings to 0 in each sandbox 5,1# block.
Until 0, after 1# block reinforcing bar binding completes, model sheetinstallat completes and concrete placings completes.After concrete reaches design strength, carry out stretch-draw to the second tension reinforcing steel bar 8 on the beam slab 12 of 0# block, the stretching force of every root 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 12, 13 is rear across 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 shutoff bolt 5-23 on sandbox 5, unload husky hole from described sand is released, after sandbox 5 to be removed, pull down connector everywhere, first tension reinforcing steel bar 4 is extracted out in the first sleeve pipe 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 the first sleeve pipe 2 and the 3rd sleeve pipe 3, injecting treatment is carried out to the first sleeve pipe 2 and the 3rd sleeve pipe 3, concrete placings is carried out to the 3rd sleeve pipe 19 in beam slab 12, adopt and carry out having built with label concrete.Finally remove each interim pad again.To bridge pier 1 pier top, sliding support surrounding anchoring system removes, the first permanent bearing 11 and the second permanent bearing 13 can stressed time produce slippage.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. the temporary support of a firm structure Continuous Bridge, it is characterized in that: comprise four sandboxs (5) being arranged on bridge pier (1) top, wherein two sandboxs (5) lay 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 pipe (2) and the second sleeve pipe (3) that are positioned at described sandbox (5) below is provided with in described bridge pier (1), the first tension reinforcing steel bar (4) is provided with in described first sleeve pipe (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 the sandbox (5) corresponding with it, the position cover that the upper end of described first tension reinforcing steel bar (4) passes sandbox (5) has the first top nut (7), the second tension reinforcing steel bar (8) is provided with 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 cover that described second tension reinforcing steel bar (8) passes described beam slab (12) has the second top nut (10), is provided with the 3rd sleeve pipe (19) passed for the second tension reinforcing steel bar (8) 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 the sandbox (5) in the described first permanent bearing (11) left side and the sandbox (5) in the second permanent bearing (13) left side, be provided with the first interim pad (14), between the sandbox (5) on the described first permanent bearing (11) right side and the sandbox (5) on the second permanent bearing (13) 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 comprise 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 on the left of it (5), between 3rd interim pad (16) and the first interim pad (14) and between the second permanent bearing (13) and the sandbox on the left of it (5), described 5th interim pad (18) is arranged between the described first permanent bearing (11) and the sandbox on the right side of it (5), between 3rd interim pad (16) and the second interim pad (15) and between the second permanent bearing (13) and the sandbox on the right side of it (5).
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 iron, and described pad i iron is that upper and lower layer cloth is established; 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 iron, and described upper strata i iron 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) comprises base plate (5-1), cover plate (5-7) and the left plate (5-2) be arranged 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) is all connected with base plate (5-1) with the lower end of back side panel (5-16), 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) is all connected with cover plate (5-7) with the upper end of back side panel (5-16), 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 splendid attire sand, described base plate (5-1) offers the first lower through-hole passed for the first tension reinforcing steel bar (4) and the second lower through-hole passed for the second tension reinforcing steel bar (8), described cover plate (5-7) offers for the first tension reinforcing steel bar (4) pass first on through hole (5-21) and for the second tension reinforcing steel bar (8) pass 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 shutoff bolt (5-23).
6. the temporary support of a kind of firm structure Continuous Bridge according to claim 5, is characterized 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: comprise for connecting left plate (5-2) and first screw rod (5-3) of right plate (5-13) and the second screw rod (5-9) for being connected 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 has left nut (5-4) at the position cover stretching out left plate (5-2), the right-hand member of described first screw rod (5-3) stretches out right plate (5-13) and has right nut (5-15) at the position cover 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 had front nut (5-10) at the position cover 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 had back nut (5-18) at the position cover 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) be enclosed within the first screw rod (5-3), the right backing plate (5-14) be enclosed within the first screw rod (5-3) is provided with between described right nut (5-15) and right plate (5-13), the front backing plate (5-11) be enclosed within the second screw rod (5-9) is provided with between described front nut (5-10) and front side board (5-8), the rear backing plate (5-17) be enclosed within the second screw rod (5-9) 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, is characterized in that: the lower end of described first sleeve pipe (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 |
|---|---|---|---|
| CN201610021768.6A CN105463985B (en) | 2016-01-14 | 2016-01-14 | A kind of temporary support of firm structure Continuous Bridge |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105463985A true CN105463985A (en) | 2016-04-06 |
| CN105463985B CN105463985B (en) | 2017-03-29 |
Family
ID=55602106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610021768.6A Active CN105463985B (en) | 2016-01-14 | 2016-01-14 | A kind of temporary support of firm structure Continuous Bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105463985B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230259A (en) * | 2018-08-21 | 2019-09-13 | 中铁十八局集团有限公司 | A kind of pier top beam section that bridge cantilever pours and its rapid constructing method |
| CN110552546A (en) * | 2019-09-18 | 2019-12-10 | 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| CN201883380U (en) * | 2010-12-06 | 2011-06-29 | 郑州市市政工程总公司 | Steel sand cylinder temporary support |
| CN202116976U (en) * | 2011-05-27 | 2012-01-18 | 中铁四局集团第一工程有限公司 | Temporary support with wood sand frame |
| CN202430630U (en) * | 2011-11-26 | 2012-09-12 | 科达集团股份有限公司 | Temporary support device utilizing square reinforced sand bag |
| CN102767140A (en) * | 2012-07-27 | 2012-11-07 | 中铁二十一局集团第三工程有限公司 | Construction method for rapidly mounting and dismounting temporary support of continuous girder bridge pier |
| CN202865748U (en) * | 2012-10-23 | 2013-04-10 | 杭州明华市政工程有限公司 | Bridge temporary supporting seat |
| CN205329527U (en) * | 2016-01-14 | 2016-06-22 | 中铁七局集团第三工程有限公司 | Temporary support of continuous bridge has just been constructed |
-
2016
- 2016-01-14 CN CN201610021768.6A patent/CN105463985B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| CN201883380U (en) * | 2010-12-06 | 2011-06-29 | 郑州市市政工程总公司 | Steel sand cylinder temporary support |
| CN202116976U (en) * | 2011-05-27 | 2012-01-18 | 中铁四局集团第一工程有限公司 | Temporary support with wood sand frame |
| CN202430630U (en) * | 2011-11-26 | 2012-09-12 | 科达集团股份有限公司 | Temporary support device utilizing square reinforced sand bag |
| CN102767140A (en) * | 2012-07-27 | 2012-11-07 | 中铁二十一局集团第三工程有限公司 | Construction method for rapidly mounting and dismounting temporary support of continuous girder bridge pier |
| CN202865748U (en) * | 2012-10-23 | 2013-04-10 | 杭州明华市政工程有限公司 | Bridge temporary supporting seat |
| CN205329527U (en) * | 2016-01-14 | 2016-06-22 | 中铁七局集团第三工程有限公司 | Temporary support of continuous bridge has just been constructed |
Non-Patent Citations (1)
| Title |
|---|
| 刘晖: "浅谈东河大桥临时支座设计", 《中国高新技术企业》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230259A (en) * | 2018-08-21 | 2019-09-13 | 中铁十八局集团有限公司 | A kind of pier top beam section that bridge cantilever pours and its rapid constructing method |
| CN110552546A (en) * | 2019-09-18 | 2019-12-10 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105463985B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104453229B (en) | Large-span load-bearing prestress double-T plate construction method | |
| CN107119574A (en) | A kind of Cantilever Construction Method of arch rib bridge girder | |
| CN106522561A (en) | Long-span concrete frame beam bonded prestressed post-cast strip inside stretching construction method | |
| CN205636496U (en) | A interim strutting arrangement that is used for support frame bridge crane and whole hole case roof beam | |
| CN105463985A (en) | Temporary support for continuous rigid-frame bridge | |
| CN205591398U (en) | FRP mesh grid - ECC strip reinforcing reinforced concrete shear wall | |
| CN106088657A (en) | The ruggedized construction of a kind of rowlock wall body and construction method thereof | |
| CN105781142A (en) | Reinforcement structure and reinforcement method for column removal of top layer of building structure | |
| CN205501843U (en) | Consolidate rigid framed arch bridge | |
| CN110029777A (en) | A kind of prestressed FRP rebar fiber high-strength light aggregate concrete beam and preparation method thereof | |
| CN205329527U (en) | Temporary support of continuous bridge has just been constructed | |
| CN205557349U (en) | Device is changed to jib | |
| CN103790385B (en) | The construction method of prestressed structure stretch-draw | |
| CN107178040B (en) | A kind of bridge structure reinforces mold and reinforcement means | |
| CN203414351U (en) | Prestrain reinforced experimental device | |
| RU139739U1 (en) | DEVICE FOR REINFORCING REINFORCED CONCRETE BEAMS | |
| CN203191293U (en) | Bonding performance test device for FRP (Fiber Reinforced Plastic) rib and concrete under complex stress state | |
| CN205591582U (en) | Shaped steel, high -strength steel stranded conductor and polymer mortar reinforcing apparatus | |
| CN204325948U (en) | A kind of external prestressing unloading consolidation device utilizing assembly pulley principle | |
| CN209307885U (en) | A kind of girder-embedded arch structure and the bridge using the structure | |
| RU2608378C1 (en) | Method of reconstruction and reinforcement of steel-concrete composite simply supported bridge superstructure by straight cables | |
| CN208363611U (en) | Girder with rolled steel section en cased in concrete, which pours, to be smash without support hung formwork structure | |
| CN104562918B (en) | Self-anchored suspension bridge anchor span cast-in-place concrete box beam and construction method thereof | |
| CN208267865U (en) | A kind of backform trolley | |
| CN206769926U (en) | Bow member installs booster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |