CN103882808A - Ramp bridge and main bridge connecting and erecting prefabricated beam supply system and construction method thereof - Google Patents
Ramp bridge and main bridge connecting and erecting prefabricated beam supply system and construction method thereof Download PDFInfo
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- CN103882808A CN103882808A CN201310729362.XA CN201310729362A CN103882808A CN 103882808 A CN103882808 A CN 103882808A CN 201310729362 A CN201310729362 A CN 201310729362A CN 103882808 A CN103882808 A CN 103882808A
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 174
- 239000010959 steel Substances 0.000 claims abstract description 174
- 239000011121 hardwood Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 11
- 210000004209 hair Anatomy 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
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Abstract
The invention discloses a ramp bridge and main bridge connecting and erecting prefabricated beam supply system which comprises a capping beam, a steel pipe support column, an I-shaped steel bearing beam and a rail beam. The steel pipe support column is located on the capping beam and fixedly connected with the same. The I-shaped steel bearing beam is located on the steel pipe support column. The rail beam is located on the I-shaped steel bearing beam. A wedge hardwood cushion block is disposed between the I-shaped steel bearing beam and the steel pipe column. High-strength hardwood is laid among the I-shaped steel bearing beam, the steel pipe column and the rail beam. The invention further discloses a construction method of the system. The method includes the steps of firstly, mounting the steel pipe support column; secondly, mounting the I-shaped steel bearing beam; thirdly, mounting the rail beam. The support system is few in required materials, low in cost, few in construction procedure, short in construction period, high in stability and free of potential safety hazard.
Description
Technical field
The present invention relates to expressway construction field, specifically ramp bridge and main line bridge join across erecting beam support system and construction method thereof.
Background technology
In the large-scale hinge of speedway is built, there are many ramp bridges and main line bridging to connect (being generally 8 places), and main line bridge is generally designed to separate type, (being median strip) near (between place 0.5m～2.5m) again between its two width, precast beam can be installed simultaneously, conventional method is to arrange that in handing-over iron plate stool or shellfish thunder steelframe make temporary support on pier capping beam, lay cross moving track, carry out again precast beam install, the method drop into material more, expense is higher, working procedure is many, the time is longer, and poor stability, exists potential safety hazard.
Summary of the invention
For problem above, the invention discloses and can save material and expense, the engineering time is short, and the ramp bridge of good stability and main line bridge join across erecting beam support system and construction method thereof.
Concrete solution is: ramp bridge and main line bridge join across erecting beam support system, by bent cap, be positioned at the steel pipe support post that is fixedly connected with on bent cap and with bent cap, be positioned at the i iron spandrel girder on steel pipe support post and the rail beam that is positioned on i iron spandrel girder forms, between i iron spandrel girder and steel pipe column, be provided with wedge shape hardwood cushion block, between i iron spandrel girder and steel pipe column and rail beam, be equipped with high-strength hardwood.
As preferably, described steel pipe support post is by base plate, top board and the composition of the steel pipe between described base plate and top board, be provided with 4 elongated channel-section steels along steel pipe periphery, the notch edges of described channel-section steel is fixedly connected with steel pipe, between two channel-section steels, be fixedly installed 2 suspension ring for lifting steel pipe support column along steel pipe periphery symmetry, be symmetrically arranged with 3 pairs of triangles steel plate of putting more energy at steel pipe two ends, a put more energy into right-angle side of steel plate of described triangle is fixedly connected with steel pipe, another right-angle side is fixedly connected with top board or base plate, on base plate and top board, be symmetrically arranged with respectively 4 bolts hole, each several part connected mode is and is welded to connect.
The invention also discloses ramp bridge and the handing-over of main line bridge across the construction method of erecting beam support system, comprise the steps:
1) steel pipe support post is installed: on bent cap, measure setting-out and according to the central point of the each steel pipe column line of crossing, then according to plate size setting-out setting-out at the bottom of steel pipe support post; Adopt artificial coordinate mobile crane by interim steel pipe support column winch to bent cap top transfer at a slow speed accurately in place after, with impact the electric hammer hole of punching on the bent cap of steel plate four side at the bottom of steel pipe column, then reinforcing bar is planted after hole and by reinforcing bar and bend, until steel plate at the bottom of tight steel bonding pipe support column; Be welded on steel pipe column as tension rib with reinforcing bar at interim steel pipe support column dual-side; Measure setting-out at bent cap end face opposite side, with impact electric hammer in the hole of punching on bent cap, then reinforcing bar is planted in hole, by channel-section steel diagonal brace firm welding also between steel pipe column and bent cap embedded ribs;
2) i iron spandrel girder is installed: two i iron are merged, and then welding steel connects and adds powerful plate to form combined I-shaped girder steel between two i iron.At the each welding steel suspension ring of combined I-shaped girder steel end positions.According to absolute altitude at steel pipe column top bracing wire laying high-strength hardwood, adopting artificial cooperation mobile crane that i iron spandrel girder is winched to steel pipe column top transfers at a slow speed accurately in place, after being inserted in pre-embedded bolt with steel plate, carry out pre-connection with built H beam, carry out the adjustment of built H beam absolute altitude, axis, position, then carry out bolton;
3) rail beam is installed: at built H beam equal intervals laying high-strength hardwood, adopt artificial coordinate mobile crane by rail beam winch to high-strength hardwood top transfer at a slow speed accurately in place, then pierce into two bolts connect after the bolt hole at rectangle steel bar two ends fastening.
As preferably, the procedure of processing of steel pipe support post is:
1) at the steel pipe end face line of crossing, and the steel pipe bottom surface setting-out of extension vertically downward, until steel pipe bottom surface cross hairs completes;
2) according to cross hairs in steel pipe dual-side setting-out setting-out, then steel pipe dual-side respectively 2 channel-section steels of symmetrical each welding make ribs, then between two channel-section steels of steel pipe column dual-side and from mouth 2/3rds positions welded reinforcement suspension ring respectively at the bottom of steel pipe;
3) steel pipe column top, bottom surface respectively each welding 1 block length square plate as top board and base plate, then respectively weld respectively 1 triangle steel plate of putting more energy in channel-section steel outer side edges and steel pipe column top, steel plate junction, bottom surface.
Beneficial effect: support system of the present invention needs that material is less, expense is low, and working procedure is few, short construction period, and support system stability is high, does not have potential safety hazard.
Accompanying drawing explanation
Fig. 1 is support system front view;
Fig. 2 is support system side view;
Fig. 3 is steel pipe support post side view;
Fig. 4 is steel pipe support post A-A sectional drawing;
Fig. 5 is steel pipe support post B-B sectional drawing;
In figure, 10, bent cap; 20, steel pipe support post; 30, hardwood cushion block; 40, spandrel girder; 50, high-strength hardwood; 60, rail beam; 21, steel pipe; 22, channel-section steel; 23, top board; 24, base plate; 25, the triangle steel plate of putting more energy into; 26, suspension ring; 27, bolt hole.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is specifically described.
The procedure of processing of steel pipe support post is:
1) at the steel pipe end face line (being drawn in steel pipe column circumferential edge) of crossing, and the steel pipe bottom surface setting-out of extension vertically downward, until steel pipe bottom surface cross hairs completes.
2) according to cross hairs steel pipe dual-side setting-out setting-out (2 [olo of 12 channel-section steels is 300mm), then in respectively 2 of the symmetrical each welding of steel pipe dual-side, [12 channel-section steels are made ribs, then [between 12 channel-section steels and from mouth 2/3rds positions at the bottom of steel pipe, weld respectively Ф 16 reinforcing bar suspension ring at two of steel pipe column dual-side.
3) (on steel pipe column end face steel plate, press 4 bolt holes of oblong-shaped cutting at steel pipe column top, i.e. long 60cm, wide 40cm, and put 4 φ 20 bolts), bottom surface 1 block of 800mm × 600mm × 10mm rectangle steel plate of each welding (position, long limit correspondence be placed on [on 12 channel-section steels) respectively, then [1 triangle steel plate (△ 800mm × 800mm × 10mm that puts more energy into is respectively welded respectively in 12 channel-section steel outer side edges and steel pipe column top, steel plate junction, bottom surface, totally 8), to form ramp bridge and the handing-over of the main line bridge single steel pipe support post across erecting beam.See φ 600mm × 8mm steel pipe scene photograph.
Ramp bridge and the handing-over of main line bridge, across the construction method of erecting beam support system, comprise the steps:
1, steel pipe support post is installed
(1) on bent cap, measure setting-out and according to the central point of the each steel pipe column line of crossing, then according to plate size setting-out setting-out at the bottom of steel pipe support post.
(2) adopt artificial coordinate mobile crane by interim steel pipe support column winch to bent cap top transfer at a slow speed accurately in place after, with impact electric hammer (the Ф 19 drill bits) hole (than the little hole of Ф 20 reinforcing bars) of punching on the bent cap of steel plate four side at the bottom of steel pipe column, then Ф 20 reinforcing bar plantations (application reinforcing bar plantation glue) are bent after hole and by reinforcing bar, until steel plate at the bottom of tight steel bonding pipe support column, see temporary support columns mounting finished product photo, what should be specifically noted that is that steel pipe column bottom surface must be smooth, steel pipe column should be vertical, otherwise should level up, after hanging vertically, could suppress with planting rebar fastening.
(3) be welded on steel pipe column as tension rib with Ф 20 reinforcing bars at interim steel pipe support column dual-side (direction across bridge).Require reinforcing bar and steel pipe column firm welding.
(4) measure setting-out (general equidistant 4m) at bent cap end face opposite side, with impact electric hammer (Ф 19 drill bits) from punching hole, about 10cm position, limit, bent cap place (than the little hole of Ф 20 reinforcing bars, and there is the angle of 8 degree that slope inwardly), then Ф 20 reinforcing bars are planted to (application reinforcing bar plantation glue) in hole, then will [12 channel-section steel diagonal braces firm welding also between steel pipe column and bent cap embedded ribs, be shown in interim steel pipe support column installation process photo.Require that diagonal brace angle is correct, weld seam is full, steel pipe column is vertical, whole row's steel pipe column is straight, height one to and in same level.
2, i iron spandrel girder is made, is installed
(1) spandrel girder is merged and is formed by two I22a i iron.Make to add powerful plate at the equidistant 30cm welding in the cladding plate both sides of every i iron 10mm steel plate, and respectively weld envelope to plate in two ends, and by head plate dual-side 3 Ф 20 bolts hole of each cutting (6 of every terminations).Two i iron are merged with the center to center distance of 30cm, and then between two i iron equidistantly 60cm welding 10mm steel plate connect and add powerful plate to form combined I-shaped girder steel.Respectively enter the each welding steel suspension ring in position (each 1 of every end both sides, totally 4) of 1/4 distance (i iron that 6m is long, respectively enters 1.5m at two ends) at combined I-shaped girder steel two ends.
(2) lay the thick high-strength hardwood of 1cm～3cm according to absolute altitude in steel pipe column top bracing wire, adopting artificial cooperation mobile crane that i iron spandrel girder is winched to steel pipe column top transfers at a slow speed accurately in place, after using again 1cm steel plate (long 10cm, wide 5cm, center are drilled with the bolt hole of Ф 22) to be inserted in pre-embedded bolt, carry out pre-connection with built H beam, carry out again the adjustment (adopting crowbar, triangle wedge type hardwood to adjust) of built H beam absolute altitude, axis, position until meet the requirements, then carry out bolton.
3, rail beam is installed
Lay at built H beam equal intervals 40cm the high-strength hardwood that 4cm is thick, 60cm is long, adopting artificial cooperation mobile crane that rail beam is winched to high-strength hardwood top transfers at a slow speed accurately in place, (other end of bolt is suspension ring shape to use the bolt of two Ф 20 again, and be inserted in the Ω suspension ring with steel pipe column welding) pierce into the bolt hole (long 40cm, wide 6cm, thick 1.5cm, and be drilled with the bolt hole of Ф 22 at two ends) at rectangle steel bar two ends after connection fastening.
Claims (4)
1. ramp bridge and main line bridge join across erecting beam support system, it is characterized in that, by: bent cap, be positioned at the steel pipe support post that is fixedly connected with on bent cap and with bent cap, be positioned at the i iron spandrel girder on steel pipe support post and the rail beam that is positioned on i iron spandrel girder forms, between i iron spandrel girder and steel pipe column, be provided with wedge shape hardwood cushion block, between i iron spandrel girder and steel pipe column and rail beam, be equipped with high-strength hardwood.
2. ramp bridge according to claim 1 and main line bridge join across erecting beam support system, it is characterized in that, described steel pipe support post is by base plate, top board and the composition of the steel pipe between described base plate and top board, be provided with 4 elongated channel-section steels along steel pipe periphery, the notch edges of described channel-section steel is fixedly connected with steel pipe, between two channel-section steels, be fixedly installed 2 suspension ring for lifting steel pipe support column along steel pipe periphery symmetry, be symmetrically arranged with 3 pairs of triangles steel plate of putting more energy at steel pipe two ends, a put more energy into right-angle side of steel plate of described triangle is fixedly connected with steel pipe, another right-angle side is fixedly connected with top board or base plate, on base plate and top board, be symmetrically arranged with respectively 4 bolts hole, each several part is fixedly connected with mode and is and is welded to connect.
3. ramp bridge and the handing-over of main line bridge, across the construction method of erecting beam support system, is characterized in that, comprise the steps:
1) steel pipe support post is installed: on bent cap, measure setting-out and according to the central point of the each steel pipe column line of crossing, then according to plate size setting-out setting-out at the bottom of steel pipe support post; Adopt artificial coordinate mobile crane by interim steel pipe support column winch to bent cap top transfer at a slow speed accurately in place after, with impact the electric hammer hole of punching on the bent cap of steel plate four side at the bottom of steel pipe column, then reinforcing bar is planted after hole and by reinforcing bar and bend, until steel plate at the bottom of tight steel bonding pipe support column; Be welded on steel pipe column as tension rib with reinforcing bar at interim steel pipe support column dual-side; Measure setting-out at bent cap end face opposite side, with impact electric hammer in the hole of punching on bent cap, then reinforcing bar is planted in hole, by channel-section steel diagonal brace firm welding also between steel pipe column and bent cap embedded ribs;
2) i iron spandrel girder is installed: two i iron are merged, and then welding steel connects and adds powerful plate to form combined I-shaped girder steel between two i iron; At the each welding steel suspension ring of combined I-shaped girder steel end positions; According to absolute altitude at steel pipe column top bracing wire laying high-strength hardwood, adopting artificial cooperation mobile crane that i iron spandrel girder is winched to steel pipe column top transfers at a slow speed accurately in place, after being inserted in pre-embedded bolt with steel plate, carry out pre-connection with built H beam, carry out the adjustment of built H beam absolute altitude, axis, position, then carry out bolton;
3) rail beam is installed: at built H beam equal intervals laying high-strength hardwood, adopt artificial coordinate mobile crane by rail beam winch to high-strength hardwood top transfer at a slow speed accurately in place, then pierce into two bolts connect after the bolt hole at rectangle steel bar two ends fastening.
4. ramp bridge according to claim 3 and the handing-over of main line bridge, across the construction method of erecting beam support system, is characterized in that, the procedure of processing of described steel pipe support post is:
1) at the steel pipe end face line of crossing, and the steel pipe bottom surface setting-out of extension vertically downward, until steel pipe bottom surface cross hairs completes;
2) according to cross hairs in steel pipe dual-side setting-out setting-out, then steel pipe dual-side respectively 2 channel-section steels of symmetrical each welding make ribs, then between two channel-section steels of steel pipe column dual-side and from mouth 2/3rds positions welded reinforcement suspension ring respectively at the bottom of steel pipe;
3) steel pipe column top, bottom surface respectively each welding 1 block length square plate as top board and base plate, then respectively weld respectively 1 triangle steel plate of putting more energy in channel-section steel outer side edges and steel pipe column top, steel plate junction, bottom surface.
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| CN201310729362.XA CN103882808B (en) | 2013-12-26 | 2013-12-26 | Ramp bridge and main line bridge join the construction method across erecting beam support system |
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| CN201310729362.XA CN103882808B (en) | 2013-12-26 | 2013-12-26 | Ramp bridge and main line bridge join the construction method across erecting beam support system |
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Cited By (5)
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| CN104562924A (en) * | 2014-12-31 | 2015-04-29 | 郑州航空工业管理学院 | Self-elevating base plate change method for bridge support |
| CN104594204A (en) * | 2015-01-29 | 2015-05-06 | 中铁十九局集团轨道交通工程有限公司 | Construction supporting system for hill type U beam of viaduct of urban light rail and construction method |
| CN107326793A (en) * | 2017-05-23 | 2017-11-07 | 中建钢构有限公司 | A kind of bicycle is at a high speed across overpass and its construction method |
| CN110761188A (en) * | 2019-09-26 | 2020-02-07 | 中国二十冶集团有限公司 | Overpass construction method at intersection of main road and local road |
| CN111979901A (en) * | 2020-08-28 | 2020-11-24 | 同济大学建筑设计研究院(集团)有限公司 | Combined bridge structure and construction method |
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| CN104562924A (en) * | 2014-12-31 | 2015-04-29 | 郑州航空工业管理学院 | Self-elevating base plate change method for bridge support |
| CN104594204A (en) * | 2015-01-29 | 2015-05-06 | 中铁十九局集团轨道交通工程有限公司 | Construction supporting system for hill type U beam of viaduct of urban light rail and construction method |
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| CN110761188A (en) * | 2019-09-26 | 2020-02-07 | 中国二十冶集团有限公司 | Overpass construction method at intersection of main road and local road |
| CN110761188B (en) * | 2019-09-26 | 2021-01-26 | 中国二十冶集团有限公司 | Overpass construction method at intersection of main road and local road |
| CN111979901A (en) * | 2020-08-28 | 2020-11-24 | 同济大学建筑设计研究院(集团)有限公司 | Combined bridge structure and construction method |
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| CN103882808B (en) | 2016-03-09 |
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