CN202081383U - Temporary support used in construction striding over existing line bridge - Google Patents
Temporary support used in construction striding over existing line bridge Download PDFInfo
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- CN202081383U CN202081383U CN2011201507439U CN201120150743U CN202081383U CN 202081383 U CN202081383 U CN 202081383U CN 2011201507439 U CN2011201507439 U CN 2011201507439U CN 201120150743 U CN201120150743 U CN 201120150743U CN 202081383 U CN202081383 U CN 202081383U
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- 238000010276 construction Methods 0.000 title claims abstract description 82
- 229910000831 Steel Inorganic materials 0.000 claims description 99
- 239000010959 steel Substances 0.000 claims description 99
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 239000004567 concrete Substances 0.000 claims description 28
- 241001669679 Eleotris Species 0.000 claims description 27
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005266 casting Methods 0.000 description 11
- 235000015170 shellfish Nutrition 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000916 dilatatory effect Effects 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a temporary support used in construction striding over an existing line bridge, which comprises a plurality of buttresses distributed along the central line of a bridge body of the bridge under construction and two temporary support beams which are distributed on the same plane, wherein the plurality of buttresses comprise three types, namely the temporary buttress III distributed on an existing line, the temporary buttress II distributed on the outer side of the existing line and the permanent buttresses which are constructed and formed in advance, the buttresses which are distributed on the left side and the right side of the central line of the existing line comprise the buttresses on the left side and the buttresses on the right side, the two temporary support beams comprise the left temporary support beam erected on the left buttresses and the right temporary support beam erected on the right buttresses, and slippage devices are arranged on the two temporary support beams respectively. The temporary support are reasonable in structural design of all the parts, simple and convenient for construction, easy to detach and good in using effect, causes small impact on the normal operation state of the existing line during the construction period, and can solve the problems of complex structure, inconvenience in disassembly and assembly, longer construction period, poorer using effect and the like of the existing temporary support.
Description
Technical field
The utility model belongs to crosses over the existing line technical field of bridge construction, especially relates to a kind of leap existing line bridge construction falsework.
Background technology
Nowadays, the bridge construction project of crossing over existing line is very many, and the bridge of crossing over existing line comprises the polytype bridge of crossing over existing railway operation line, being connected to highway alignment etc.Wherein, actual when carrying out bridge erection on existing line for the steel truss girder construction of crossing over existing line, not only work progress more complicated, difficulty of construction are bigger, and easily the operation situation of existing line are produced considerable influence.Thereby in the practice, when the steel truss girder of crossing over existing line is constructed, usually all adopt dilatory method to set up, specifically: all at the construction field (site) sides are set up on the falsework earlier, utilize the falsework set up that the steel truss girder of need construction is carried out assembly unit again, utilize the dilatory job practices that puts in place of the towed equipment steel truss girder that assembly unit is good at last.
For example, stride coastal high speed grand bridge for the ocean railway of crossing over Coast Expressway, itself and Coast Expressway intersect and the angle between the two is 21.53 °, Coast Expressway is two-way six-lane, and the centre is provided with greenbelt, flexible pavement, the wide about 35m in road surface, about 3m above ground level.The main span that the ocean railway of constructing is striden coastal high speed grand bridge is the lower support type steel truss girder of 1m～64m, grade separation clear height 5.5m.When actual lower support type steel truss girder to the leap Coast Expressway was constructed, all at the construction field (site) sides were set up falsework earlier, utilize falsework that steel truss girder is carried out assembly unit again, and the steel truss girder of again assembly unit being finished at last is dilatory to put in place.But in the practice of construction process, nowadays all there be long, number of drawbacks and deficiency such as result of use is relatively poor of complex structure, dismounting inconvenience, construction period to some extent in the falsework that is adopted.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of leap existing line bridge construction falsework is provided, its each several part reasonable in design, easy construction, be easy to the dismounting and result of use good, problems such as construction period is little to the normal operation conditions influence of existing line, and complex structure, dismounting inconvenience, the construction period that can effectively solve existing falsework existence grown, result of use is relatively poor.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of leap existing line bridge construction falsework, it is characterized in that: comprise along the beam body center line of institute's construction bridges a plurality of buttresses of laying and two interim brace summers that are laid on the same horizontal plane, the girder of institute's construction bridges is for crossing over the steel truss girder of existing line, and the beam body center line of two described interim brace summers is laid on same the straight line and the two is all laid along the beam body center line of steel truss girder; A plurality of described buttresses comprise the temporary rest pier three that is laid on the existing line, be laid in the temporary rest pier two in the existing line outside and construction molding and steel truss girder carried out three types of the permanent buttresses of permanent support in advance, and the quantity of described temporary rest pier two and temporary rest pier three is a plurality of; Two described interim brace summers are respectively the interim brace summer of interim brace summer in left side and right side of the central lines of track left and right sides that is laid in existing line, are provided with the slide device that steel truss girder is carried out translation on the interim brace summer of interim brace summer in described left side and right side.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: described permanent buttress comprises cushion cap basis one, builds up the steel concrete pier shaft of type and set up Horizontal Branch platform one on the steel concrete pier shaft at cushion cap basis one top-pour, pad is equipped with leveling bed course one between described steel concrete pier shaft and the Horizontal Branch platform one, and described leveling bed course one is laid on the set pinner in steel concrete pier shaft top; Described temporary rest pier two comprises cushion cap basis two, be laid on the cushion cap basis two and a plurality of interim pier two that physical dimension is all identical and set up Horizontal Branch platform two on a plurality of described interim piers two, pad is equipped with leveling cushion block two between described interim pier two and the Horizontal Branch platform two, and described leveling cushion block two is laid in interim pier two tops; Described temporary rest pier three comprises cushion cap basis three, be laid on the cushion cap basis three and a plurality of interim pier three that physical dimension is all identical and set up Horizontal Branch platform three on a plurality of described interim piers three, pad is equipped with leveling cushion block three between described interim pier three and the Horizontal Branch platform three, and described leveling cushion block three is laid in interim pier three tops; Described Horizontal Branch platform one, Horizontal Branch platform two and Horizontal Branch platform three are all laid along the beam body center line of institute's construction bridges.
Above-mentioned leap existing line bridge construction falsework is characterized in that: all be fastenedly connected by shearing support two between adjacent two interim piers two, and all be fastenedly connected by shearing support three between adjacent two interim piers three; Described interim pier two and interim pier three are the steel casing that medium coarse sand is filled in inside.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: described Horizontal Branch platform one, Horizontal Branch platform two and Horizontal Branch platform three platform for lining that the i iron that is parallel laying is assemblied to form of all serving as reasons many, described i iron is laid along the direction across bridge direction of institute's construction bridges, and described interim brace summer is set up on described platform for lining.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: the quantity of included interim pier two is two in each temporary rest pier two, two symmetrical respectively beam body center line both sides that are laid in institute's construction bridges of interim pier two, and the quantity of included Horizontal Branch platform two is one in each temporary rest pier two; The quantity of included interim pier three is four in each temporary rest pier three, four interim piers three minutes are laid for two groups, and every group of interim pier three includes symmetrical respectively two interim piers three that are laid in the beam body center line both sides of institute's construction bridges, the quantity of included Horizontal Branch platform three is two in each temporary rest pier three, and two Horizontal Branch platforms three are set up respectively on two groups of described interim piers three.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: described steel truss girder comprises two Pin plane frames and a plurality of connecting rods that the described plane frame of two Pin is fastenedly connected, and the described plane frame symmetry of two Pin is laid in the beam body center line both sides of institute's construction bridges; Two interim piers two in each temporary rest pier two are laid along the center line of the described plane frame of two Pin respectively, and two interim piers three in every group of interim pier three are laid along the center line of the described plane frame of two Pin respectively.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: described slide device comprises and is installed in the glide path on interim brace summer in left side or the interim brace summer in right side and is laid in sliding way directly over the described glide path, and described glide path and get on the right track between be provided with and guarantee in the translation process that the stopping means of laterally offset does not take place steel truss girder.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: the quantity of described glide path be two and two described glide paths be laid in respectively the described plane frame of two Pin under, on described glide path comprises sleeper that many of mating formation on the interim brace summer of interim brace summer in left side or right side are parallel laying and is layered on many described sleepers and be two one steel rails of parallel laying, two one steel rails symmetry respectively are laid in the truss center line both sides of described plane frame; Described rail and the interim brace summer of interim brace summer in left side or right side are between parallel laying and itself and the sleeper and are vertical laying; The quantity of described sliding way is two, and two described sliding ways be laid in respectively two described glide paths directly over, described sliding way comprises the leveling bed course four that is fixed on described plane frame bottom, described leveling bed course four-way crosses that steel plate is fastening to be fixed on the described plane frame, and be pasted with horizontal slide plate on the described steel plate, described horizontal slide plate is laid in directly over the rail.
Above-mentioned leap existing line bridge construction falsework is characterized in that: many angle steel are installed on the outer end of described sleeper, and many described angle steel tops are equipped with guardrail, and the sleeper of described guardrail inboard is provided with the sidewalk; Described stopping means is the channel-section steel that is installed in the vertical baffle plate on the described steel plate or is installed in the sleeper inner end, and the quantity of described vertical baffle plate or channel-section steel is two; Two described vertical baffle plates are installed on the inboard of two described glide paths respectively, and two described channel-section steels are installed on two leveling bed course four inboards in the described sliding way respectively.
Above-mentioned leap existing line bridge construction falsework, it is characterized in that: the interim brace summer of interim brace summer in described left side and right side includes two groups of brace summers, two groups of described brace summers be laid in respectively the described plane frame of two Pin under, and be fastenedly connected by connecting support between two groups of described brace summers, the interim brace summer of interim brace summer in described left side and right side is Bei Leiliang; The quantity of described temporary rest pier three is the central lines of track left and right sides that two and two temporary rest piers three are laid in existing line respectively.
The utility model compared with prior art has the following advantages:
1, reasonable in design, easy construction and input cost are low.
2, according to concrete installation position, the temporary rest pier three that is laid on the existing line be will be divided into the buttress that interim brace summer supports, the temporary rest pier two in the existing line outside and construction molding and steel truss girder is carried out three types of the permanent buttresses of permanent support in advance will be laid in, can effectively utilize permanent buttress, when saving temporary rest pier quantity and corresponding construction cost, can make that also the steadiness of interim brace summer is greatly improved.
3, the simple and convenient formation of two kinds of temporary rest pier construction sequences that adopted, support effect is good simultaneously, the later stage convenient disassembly.
4, adopting interim brace summer is Bei Leiliang, and it is good to set up convenience and support effect, is that the boundary is divided into interim brace summer in left side and the interim brace summer in right side simultaneously with the existing line with interim brace summer, thereby construction period is little to the normal operation conditions influence of existing line.
5, be provided with the slide device that steel truss girder is carried out translation on the interim brace summer of interim brace summer in left side and right side, the slide device reasonable in design, easy construction and the shuffle effect that are adopted are good, between sliding way and glide path, be provided with simultaneously firm stopping means, can guarantee that steel truss girder advances by existing direction, can avoid steel truss girder to produce lateral shift again, thereby can effectively guarantee the dilatory speed of application of steel truss, the construction period is short and safety factor is high.
In sum, the utility model each several part reasonable in design, easy construction, be easy to the dismounting and result of use good, problems such as construction period is little to the normal operation conditions influence of existing line, and complex structure, dismounting inconvenience, the construction period that can effectively solve existing falsework existence grown, result of use is relatively poor.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a user mode reference diagram of the present utility model.
Fig. 2 is the user mode reference diagram of the permanent buttress of the utility model.
Fig. 3 is the right view of permanent buttress among Fig. 2.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the user mode reference diagram of the utility model temporary rest pier two.
Fig. 6 is the right view of temporary rest pier two among Fig. 5.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the user mode reference diagram of the utility model temporary rest pier three.
Fig. 9 is the right view of temporary rest pier three among Fig. 8.
Figure 10 is the vertical view of Fig. 9.
Description of reference numerals:
The 1-existing line; The 2-steel truss girder; The permanent buttress of 3-1-;
3-11-cushion cap basis one; 3-12-reinforced concrete knoll 3-13-leveling bed course one;
Body;
3-14-Horizontal Branch platform one; 3-2-temporary rest pier two; 3-21-cushion cap basis two;
The interim pier two of 3-22-; 3-24-Horizontal Branch platform two; 3-25-shearing support two;
3-3-temporary rest pier three; 3-31-cushion cap basis three; The interim pier three of 3-32-;
3-34-Horizontal Branch platform three; 3-35-shearing support three; The interim brace summer in 4-1-left side;
The interim brace summer in 4-2-right side; The 5-1-sleeper; The 5-2-rail;
6-1-leveling bed course four; The 6-2-horizontal slide plate; The 7-angle steel;
The 8-sidewalk; The 9-channel-section steel; The underpin of 10-concrete casting;
The 11-sand-gravel cushion; 12-Bei Leiliang; The 13-steel truss.
The specific embodiment
As shown in Figure 1, the utility model comprises along the beam body center line of institute's construction bridges a plurality of buttresses of laying and two interim brace summers that are laid on the same horizontal plane, the girder of institute's construction bridges is laid on same the straight line for the beam body center line of 2, two described interim brace summers of steel truss girder of crossing over existing line 1 and the two is all laid along the beam body center line of steel truss girder 2.A plurality of described buttresses comprise temporary rest pier three 3-3 that are laid on the existing line 1, temporary rest pier two 3-2 that are laid in existing line 1 outside and construction molding and steel truss girder 2 is carried out three types of the permanent buttress 3-1 of permanent support in advance, the quantity of described temporary rest pier two 3-2 and temporary rest pier three 3-3 is a plurality of, and temporary rest pier two 3-2 and temporary rest pier three 3-3 all are laid between adjacent two described permanent buttress 3-1.Two interim brace summer 4-1 in left side and interim brace summer 4-2 in right side that described interim brace summer is respectively the central lines of track left and right sides that is laid in existing line 1 are provided with the slide device that steel truss girder 2 is carried out translation on interim brace summer 4-1 in described left side and the interim brace summer 4-2 in right side.Wherein, all buttresses that are laid in the central lines of track left side of existing line 1 in a plurality of described buttresses are the left side buttress, and all buttresses that are laid in the central lines of track right side of existing line 1 in a plurality of described buttresses are the right side buttress, and the quantity of described left side buttress and right side buttress is a plurality of.The interim brace summer 4-1 in left side sets up on the buttress of a plurality of described left sides in two described interim brace summers, and the interim brace summer 4-2 in right side sets up on the buttress of a plurality of described right sides.
In the present embodiment, described existing line 1 is a speedway.To length, and the interim brace summer 4-1 in left side and the interim brace summer 4-2 in right side are laid in the left and right sides of existing line 1 respectively to spacing between interim brace summer 4-1 in described left side and the interim brace summer 4-2 in right side less than the vertical bridge of institute's erecting steel truss girder 2.
During practice of construction, described steel truss girder 2 comprises two Pin plane frames and a plurality of connecting rods that the described plane frame of two Pin is fastenedly connected, and the described plane frame symmetry of two Pin is laid in the beam body center line both sides of institute's construction bridges.In the present embodiment, interim brace summer 4-1 in described left side and the interim brace summer 4-2 in right side include two groups of brace summers, two groups of described brace summers be laid in respectively the described plane frame of two Pin under, and be fastenedly connected by connecting support between two groups of described brace summers, interim brace summer 4-1 in described left side and the interim brace summer 4-2 in right side are shellfish thunder beam 12, and described connection support is a steel truss 13.The quantity of described temporary rest pier three 3-3 is the central lines of track left and right sides that two and two temporary rest pier three 3-3 are laid in existing line 1 respectively.
In conjunction with Fig. 2, Fig. 3 and Fig. 4, in the present embodiment, described permanent buttress 3-1 comprises cushion cap basis one 3-11, builds up the steel concrete pier shaft 3-12 of type and set up Horizontal Branch platform one 3-14 on steel concrete pier shaft 3-12 at cushion cap basis one 3-11 top-pour, pad is equipped with leveling bed course one 3-13 between described steel concrete pier shaft 3-12 and Horizontal Branch platform one 3-14, and described leveling bed course one 3-13 is laid on the set pinner in steel concrete pier shaft 3-12 top.
In conjunction with Fig. 5, Fig. 6 and Fig. 7, described temporary rest pier two 3-2 comprise cushion cap basis two 3-21, be laid in a plurality of interim pier two 3-22 that cushion cap basis two 3-21 go up and physical dimension is all identical and set up Horizontal Branch platform two 3-24 on a plurality of described interim pier two 3-22, pad is equipped with leveling cushion block two between described interim pier two 3-22 and Horizontal Branch platform two 3-24, and described leveling cushion block two 3-23 are laid on the pier cap at interim pier two 3-22 tops.
In the present embodiment, the quantity of included interim pier two 3-22 is two among each temporary rest pier two 3-2, two symmetrical respectively beam body center line both sides that are laid in institute's construction bridges of interim pier two 3-22, and the quantity of included Horizontal Branch platform two 3-24 is one among each temporary rest pier two 3-2.
In conjunction with Fig. 8, Fig. 9 and Figure 10, described temporary rest pier three 3-3 comprise cushion cap basis three 3-31, be laid in a plurality of interim pier three 3-32 that cushion cap basis three 3-31 go up and physical dimension is all identical and set up Horizontal Branch platform three 3-34 on a plurality of described interim pier three 3-32, pad is equipped with leveling cushion block three between described interim pier three 3-32 and Horizontal Branch platform three 3-34, and described leveling cushion block three is laid on the pier cap at interim pier three 3-32 tops.
In the present embodiment, the quantity of included interim pier three 3-32 is four among each temporary rest pier three 3-3, four interim pier three 3-32 divide two groups to lay, and every group of interim pier three 3-32 include symmetrical respectively two interim pier three 3-32 that are laid in the beam body center line both sides of institute's construction bridges, the quantity of included Horizontal Branch platform three 3-34 is two among each temporary rest pier three 3-3, and two Horizontal Branch platform three 3-34 set up respectively on two groups of described interim pier three 3-32.
When actual installation was laid, described Horizontal Branch platform one 3-14, Horizontal Branch platform two 3-24 and Horizontal Branch platform three 3-34 all laid along the beam body center line of institute's construction bridges.In the present embodiment, all support two 3-25 between adjacent two interim pier two 3-22 and be fastenedly connected, and all support three 3-35 between adjacent two interim pier three 3-32 and be fastenedly connected by shearing by shearing; Described interim pier two 3-22 and interim pier three 3-32 are the steel casing that medium coarse sand is filled in inside.Two interim pier two 3-22 among each temporary rest pier two 3-2 lay along the center line of the described plane frame of two Pin respectively; And for temporary rest pier three 3-3, two interim pier three 3-32 among every group of interim pier three 3-32 lay along the center line of the described plane frame of two Pin respectively.
In the present embodiment, described Horizontal Branch platform one 3-14, Horizontal Branch platform two 3-24 and the Horizontal Branch platform three 3-34 platform for lining that the i iron that is parallel laying is assemblied to form of all serving as reasons many, described i iron is laid along the direction across bridge direction of institute's construction bridges, and described interim brace summer is set up on described platform for lining.
In the present embodiment, described slide device comprises and is installed in the glide path on interim brace summer 4-1 in left side or the interim brace summer 4-2 in right side and is laid in sliding way directly over the described glide path, and described glide path and get on the right track between be provided with and guarantee in the translation process that the stopping means of laterally offset does not take place steel truss girder 2.
The actual laying when installing, the quantity of described glide path be two and two described glide paths be laid in respectively the described plane frame of two Pin under, on described glide path comprises sleeper 5-1 that many of mating formation on interim brace summer 4-1 in left side or the interim brace summer 4-2 in right side are parallel laying and is layered on many described sleeper 5-1 and be two one steel rail 5-2 of parallel laying, two one steel rail 5-2 symmetry respectively are laid in the truss center line both sides of described plane frame.Described rail 5-2 and interim brace summer 4-1 in left side or the interim brace summer 4-2 in right side are between parallel laying and itself and the sleeper 5-1 and are vertical laying.The quantity of described sliding way is two, and two described sliding ways be laid in respectively two described glide paths directly over, described sliding way comprises leveling bed course four 6-1 that are fixed on described plane frame bottom, described leveling bed course four 6-1 are fixed on the described plane frame by steel plate is fastening, and be pasted with horizontal slide plate 6-2 on the described steel plate, described horizontal slide plate 6-2 is laid in directly over the rail 5-2.
In the present embodiment, many angle steel 7 are installed on the outer end of described sleeper 5-1, many described angle steel 7 tops are equipped with guardrail, and the sleeper 5-1 of described guardrail inboard is provided with sidewalk 8.
In the practice of construction process, described stopping means is the channel-section steel 9 that is installed in the vertical baffle plate on the described steel plate or is installed in sleeper 5-1 inner end, and the quantity of described vertical baffle plate or channel-section steel 9 is two.Two described vertical baffle plates are installed on the inboard of two described glide paths respectively, and two described channel-section steels 9 are installed on two leveling bed course four 6-1 inboards in the described sliding way respectively.In the present embodiment, described stopping means is a channel-section steel 9.
In the present embodiment, described cushion cap basis one 3-11 and cushion cap basis two 3-21 form by sand-gravel cushion 11 and the concrete casting underpin 10 that is tiled on the sand-gravel cushion 11, and described cushion cap basis three 3-31 are the concrete casting underpin 10 that is laid on the existing line 1.Described leveling bed course one 3-13 and leveling bed course four 6-1 are the bed course for being assemblied to form side by side by the polylith lumps of wood all, and described leveling cushion block two and leveling cushion block three are timber wedge.Described Horizontal Branch platform one 3-14, Horizontal Branch platform two 3-24 are all identical with the width of Horizontal Branch platform three 3-34 on institute's construction bridges direction across bridge direction.In addition, described horizontal slide plate 6-2 is the tetrafluoro plate, and described tetrafluoro plate is pasted and fixed on the described steel plate.
Two groups of included brace summers are the reinforced Bei Leiliang of double individual layer among interim brace summer 4-1 in described left side and the interim brace summer 4-2 in right side, thereby the interim brace summer 4-1 in left side and the interim brace summer 4-2 in right side form by 4 row shellfish thunder beams 12, and the horizontal directions of adjacent two row shellfish thunder beams 12 utilize the i iron welding to position.
When reality is constructed to permanent buttress 3-1, earlier that 8 9m are long I40 i iron is placed directly on the pinner at steel concrete pier shaft 3-1 top, again 8 I40 i iron are welded to form Horizontal Branch platform one 3-14 side by side, on the Dun Ding of steel concrete pier shaft 3-1,8 I40 i iron are leveled up simultaneously with leveling bed course one 3-13.
When reality is constructed to temporary rest pier two 3-2, two described interim pier two 3-22 adopt the steel casing of 2 Φ 60mm respectively, horizontal spacing between two described steel casings is that 700cm and the height of the two are 8.25m, and described shearing supports two 3-25 and adopts 14 angle steel to process.The steel plate that described interim pier two 3-22 put into very useful 2 * 80 * 80cm of pier is made pier cap, and adopt the high-strength bolt of flange and Φ 25mm to be connected at the bottom of its pier, fill the stability that medium coarse sand strengthens interim pier in the pier of described interim pier two 3-22 with concrete casting underpin 10.When the basis of interim pier two 3-22 is handled, adopt rammer compacting original ground earlier, and mat thickness is on the sand gravel and compacting back formation sand-gravel cushion 11 of 50cm on the ground, building thickness afterwards on sand-gravel cushion 11 is the C20 concrete formation concrete casting underpin 10 of 50cm, the length of described concrete casting underpin 10 is that 860cm and its width are 200cm, and before concrete casting underpin 10 built, should earlier pre-buriedly be used to connect the Φ 25mm high-strength bolt of interim pier two 3-22.The long I40 i iron of 3 9m laterally placed side by side on the pier cap of two described interim pier two 3-22, and 3 I40 i iron are welded to form Horizontal Branch platform two 3-24 side by side, with leveling cushion block two 3-23 3 I40 i iron are leveled up on the Dun Ding of interim pier two 3-22 subsequently.
During practice of construction, after permanent buttress 3-1 and temporary rest pier two 3-2 construction end, on the set I40 i iron in permanent buttress 3-1 and temporary rest pier two 3-2 tops, lay 4 row shellfish thunder beams 12, and placing specification on the shellfish thunder beam of being laid 12 is the many sleeper 5-1 of 16 * 22 * 250cm, and the spacing that many sleeper 5-1 are between even laying and the adjacent two sleeper 5-1 is 1m; Many sleeper 5-1 go up and place two groups of rail 5-2, and the spacing among every group of rail 5-2 between the adjacent two one steel rail 5-2 is 30cm.Simultaneously, lay springboard as sidewalk 8 on the sleeper 5-1 of the outside, and place 7.5 angle steel 7 and fix with sleeper 5-1 on sleeper 5-1, welded steel pipe is as guardrail on the angle steel 7.In addition, when reality is constructed to temporary rest pier two 3-2, between adjacent two permanent buttress 3-1, lay temporary rest pier two 3-2, and this temporary rest pier two 3-2 are positioned at the middle part of adjacent two permanent buttress 3-1.
When reality is constructed to temporary rest pier three 3-3,4 described interim pier three 3-32 adopt the steel casing of 4 Φ 60mm respectively, horizontal spacing between adjacent herein two steel casings is 700cm, and its longitudinal pitch is 215cm, and described shearing supports three 3-35 and adopts 14 angle steel to process.The steel plate of very useful 2 * 80 * 80cm of pier of described interim pier three 3-32 is made pier cap, and adopts the high-strength bolt of flange and Φ 25mm to be connected with concrete casting underpin 10 at the bottom of its pier, fills the stability that medium coarse sand strengthens interim pier in the pier of described interim pier three 3-32.When reality is handled the basis of temporary rest pier three 3-3, on express highway pavement, lay the aluminium skin earlier, on the aluminium skin that has laid, build one deck thickness afterwards again and form concrete casting underpin 10 for the 50cmC20 concrete, the length of described concrete casting underpin 10 is that 860cm and its width are 375cm, and before concrete casting underpin 10 built, should earlier pre-buriedly be used to connect the Φ 25mm high-strength bolt of interim pier three 3-32.Because four interim pier three 3-32 divide two groups to lay, and the long I40 i iron of 3 9m laterally placed side by side on the pier cap of two interim pier three 3-32 among every group of interim pier three 3-32, and 3 I40 i iron are welded to form Horizontal Branch platform three 3-34 side by side, with leveling cushion block 33 I40 i iron are leveled up on the Dun Ding of interim pier three 3-32 subsequently.
During practice of construction, after temporary rest pier three 3-3 construction finishes, on the set I40 i iron in temporary rest pier three 3-3 tops, lay 4 row shellfish thunder beams 12, and placing specification on the shellfish thunder beam of being laid 12 is the many sleeper 5-1 of 16 * 22 * 250cm, and the spacing that many sleeper 5-1 are between even laying and the adjacent two sleeper 5-1 is 0.4m; Many sleeper 5-1 go up and place two groups of rail 5-2, and the spacing among every group of rail 5-2 between the adjacent two one steel rail 5-2 is 30cm.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (10)
1. cross over existing line bridge construction falsework for one kind, it is characterized in that: comprise along the beam body center line of institute's construction bridges a plurality of buttresses of laying and two interim brace summers that are laid on the same horizontal plane, the girder of institute's construction bridges is for crossing over the steel truss girder (2) of existing line (1), and the beam body center line of two described interim brace summers is laid on same the straight line and the two is all laid along the beam body center line of steel truss girder (2); A plurality of described buttresses comprise the temporary rest pier three (3-3) that is laid on the existing line (1), be laid in the temporary rest pier two (3-2) in existing line (1) outside and construction molding and steel truss girder (2) carried out three types of the permanent buttresses (3-1) of permanent support in advance, and the quantity of described temporary rest pier two (3-2) and temporary rest pier three (3-3) is a plurality of; Two described interim brace summers are respectively the interim brace summer of interim brace summer in left side (4-1) and right side (4-2) of the central lines of track left and right sides that is laid in existing line (1), are provided with the slide device that steel truss girder (2) is carried out translation on the interim brace summer of interim brace summer in described left side (4-1) and right side (4-2).
2. according to the described leap existing line of claim 1 bridge construction falsework, it is characterized in that: described permanent buttress (3-1) comprises cushion cap basis one (3-11), build up the steel concrete pier shaft (3-12) of type and set up Horizontal Branch platform one (3-14) on steel concrete pier shaft (3-12) at cushion cap basis one (3-11) top-pour, pad is equipped with leveling bed course one (3-13) between described steel concrete pier shaft (3-12) and the Horizontal Branch platform one (3-14), and described leveling bed course one (3-13) is laid on the set pinner in steel concrete pier shaft (3-12) top; Described temporary rest pier two (3-2) comprises cushion cap basis two (3-21), be laid in a plurality of interim pier two (3-22) that go up on cushion cap basis two (3-21) and physical dimension is all identical and set up Horizontal Branch platform two (3-24) on a plurality of described interim piers two (3-22), pad is equipped with leveling cushion block two between described interim pier two (3-22) and the Horizontal Branch platform two (3-24), and described leveling cushion block two is laid on the pier cap at interim pier two (3-22) top; Described temporary rest pier three (3-3) comprises cushion cap basis three (3-31), be laid in a plurality of interim pier three (3-32) that go up on cushion cap basis three (3-31) and physical dimension is all identical and set up Horizontal Branch platform three (3-34) on a plurality of described interim piers three (3-32), pad is equipped with leveling cushion block three between described interim pier three (3-32) and the Horizontal Branch platform three (3-34), and described leveling cushion block three is laid on the pier cap at interim pier three (3-32) top; Described Horizontal Branch platform one (3-14), Horizontal Branch platform two (3-24) and Horizontal Branch platform three (3-34) are all laid along the beam body center line of institute's construction bridges.
3. according to the described leap existing line of claim 2 bridge construction falsework, it is characterized in that: all be fastenedly connected between adjacent two interim piers two (3-22), and all be fastenedly connected between adjacent two interim piers three (3-32) by shearing support three (3-35) by shearing support two (3-25); Described interim pier two (3-22) and interim pier three (3-32) are the steel casing that medium coarse sand is filled in inside.
4. according to claim 2 or 3 described leap existing line bridge construction falseworks, it is characterized in that: described Horizontal Branch platform one (3-14), Horizontal Branch platform two (3-24) and Horizontal Branch platform three (3-34) platform for lining that the i iron that is parallel laying is assemblied to form of all serving as reasons many, described i iron is laid along the direction across bridge direction of institute's construction bridges, and described interim brace summer is set up on described platform for lining.
5. according to claim 2 or 3 described leap existing line bridge construction falseworks, it is characterized in that: the quantity of included interim pier two (3-22) is two in each temporary rest pier two (3-2), the symmetrical respectively beam body center line both sides that are laid in institute's construction bridges of two interim piers two (3-22), and the quantity of included Horizontal Branch platform two (3-24) is one in each temporary rest pier two (3-2); The quantity of included interim pier three (3-32) is four in each temporary rest pier three (3-3), four interim piers three (3-32) divide two groups and lay, and every group of interim pier three (3-32) includes symmetrical respectively two the interim piers three (3-32) that are laid in the beam body center line both sides of institute's construction bridges, the quantity of included Horizontal Branch platform three (3-34) is two in each temporary rest pier three (3-3), and two Horizontal Branch platforms three (3-34) are set up respectively on two groups of described interim piers three (3-32).
6. according to the described leap existing line of claim 5 bridge construction falsework, it is characterized in that: described steel truss girder (2) comprises two Pin plane frames and a plurality of connecting rods that the described plane frame of two Pin is fastenedly connected, and the described plane frame symmetry of two Pin is laid in the beam body center line both sides of institute's construction bridges; Two interim piers two (3-22) in each temporary rest pier two (3-2) are laid along the center line of the described plane frame of two Pin respectively, and two the interim piers three (3-32) in every group of interim pier three (3-32) are laid along the center line of the described plane frame of two Pin respectively.
7. according to the described leap existing line of claim 6 bridge construction falsework, it is characterized in that: described slide device comprises and is installed in the glide path on interim brace summer (4-1) in left side or the interim brace summer in right side (4-2) and is laid in sliding way directly over the described glide path, and described glide path and get on the right track between be provided with and guarantee in the translation process that the stopping means of laterally offset does not take place steel truss girder (2).
8. according to the described leap existing line of claim 7 bridge construction falsework, it is characterized in that: the quantity of described glide path be two and two described glide paths be laid in respectively the described plane frame of two Pin under, described glide path comprises sleeper (5-1) that many of mating formation on the interim brace summer of interim brace summer in left side (4-1) or right side (4-2) are parallel laying and is layered on many described sleepers (5-1) and goes up and be two one steel rails (5-2) of parallel laying, and two one steel rails (5-2) symmetry respectively are laid in the truss center line both sides of described plane frame; Described rail (5-2) and the interim brace summer of interim brace summer in left side (4-1) or right side (4-2) are between parallel laying and itself and the sleeper (5-1) and are vertical laying; The quantity of described sliding way is two, and two described sliding ways be laid in respectively two described glide paths directly over, described sliding way comprises the leveling bed course four (6-1) that is fixed on described plane frame bottom, described leveling bed course four (6-1) is fixed on the described plane frame by steel plate is fastening, and be pasted with horizontal slide plate (6-2) on the described steel plate, described horizontal slide plate (6-2) is laid in directly over the rail (5-2).
9. according to the described leap existing line of claim 8 bridge construction falsework, it is characterized in that: many angle steel (7) are installed on the outer end of described sleeper (5-1), many described angle steel (7) top is equipped with guardrail (12), and the inboard sleeper (5-1) of described guardrail (12) is provided with sidewalk (8); Described stopping means is the channel-section steel (9) that is installed in the vertical baffle plate on the described steel plate or is installed in sleeper (5-1) inner end, and the quantity of described vertical baffle plate or channel-section steel (9) is two; Two described vertical baffle plates are installed on the inboard of two described glide paths respectively, and two described channel-section steels (9) are installed on two leveling bed course four (6-1) inboards in the described sliding way respectively.
10. according to claim 1,2 or 3 described leap existing line bridge construction falseworks, it is characterized in that: the interim brace summer of interim brace summer in described left side (4-1) and right side (4-2) includes two groups of brace summers, two groups of described brace summers be laid in respectively the described plane frame of two Pin under, and be fastenedly connected by connecting support between two groups of described brace summers, the interim brace summer of interim brace summer in described left side (4-1) and right side (4-2) is Bei Leiliang (12); The quantity of described temporary rest pier three (3-3) is the central lines of track left and right sides that two and two temporary rest piers three (3-3) are laid in existing line (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201507439U CN202081383U (en) | 2011-05-12 | 2011-05-12 | Temporary support used in construction striding over existing line bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201507439U CN202081383U (en) | 2011-05-12 | 2011-05-12 | Temporary support used in construction striding over existing line bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081383U true CN202081383U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201507439U Expired - Fee Related CN202081383U (en) | 2011-05-12 | 2011-05-12 | Temporary support used in construction striding over existing line bridge |
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| Country | Link |
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| CN (1) | CN202081383U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605717A (en) * | 2012-04-09 | 2012-07-25 | 中铁七局集团郑州工程有限公司 | Pier-top longitudinal support scaffolding method |
| CN103614970A (en) * | 2013-12-10 | 2014-03-05 | 中铁二十局集团第一工程有限公司 | Longitudinal-pulling and transverse-pushing sliding system used for assembly and erection construction of steel truss girder |
| CN110258334A (en) * | 2019-05-07 | 2019-09-20 | 中交一公局桥隧工程有限公司 | Construction platform and construction method |
| CN115450126A (en) * | 2022-09-30 | 2022-12-09 | 中铁二十局集团第一工程有限公司 | Bridge supporting structure and construction method |
-
2011
- 2011-05-12 CN CN2011201507439U patent/CN202081383U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605717A (en) * | 2012-04-09 | 2012-07-25 | 中铁七局集团郑州工程有限公司 | Pier-top longitudinal support scaffolding method |
| CN103614970A (en) * | 2013-12-10 | 2014-03-05 | 中铁二十局集团第一工程有限公司 | Longitudinal-pulling and transverse-pushing sliding system used for assembly and erection construction of steel truss girder |
| CN103614970B (en) * | 2013-12-10 | 2016-03-02 | 中铁二十局集团第一工程有限公司 | Steel truss girder assembling construction longitudinal pull and lateral pushing sliding system |
| CN110258334A (en) * | 2019-05-07 | 2019-09-20 | 中交一公局桥隧工程有限公司 | Construction platform and construction method |
| CN115450126A (en) * | 2022-09-30 | 2022-12-09 | 中铁二十局集团第一工程有限公司 | Bridge supporting structure and construction method |
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Granted publication date: 20111221 Termination date: 20160512 |