CN103882808B - Ramp bridge and main line bridge join the construction method across erecting beam support system - Google Patents
Ramp bridge and main line bridge join the construction method across erecting beam support system Download PDFInfo
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- CN103882808B CN103882808B CN201310729362.XA CN201310729362A CN103882808B CN 103882808 B CN103882808 B CN 103882808B CN 201310729362 A CN201310729362 A CN 201310729362A CN 103882808 B CN103882808 B CN 103882808B
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- steel pipe
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- spandrel girder
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- 238000010276 construction Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 156
- 239000010959 steel Substances 0.000 claims abstract description 156
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052742 iron Inorganic materials 0.000 claims abstract description 44
- 239000011121 hardwood Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 11
- 210000004209 hair Anatomy 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
- 238000009434 installation Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 101100008047 Caenorhabditis elegans cut-3 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 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 ramp bridge and main line bridge and join construction method across erecting beam support system, ramp bridge and main line bridge join across erecting beam support system by bent cap, be positioned at be fixedly connected with on bent cap and with bent cap steel pipe support post, be positioned at i iron spandrel girder on steel pipe support post and the rail beam be positioned on i iron spandrel girder forms, between i iron spandrel girder and steel pipe support post, be provided with wedge shape hardwood cushion block, be equipped with high-strength hardwood at i iron spandrel girder and between steel pipe support post and rail beam.This construction method, comprises the steps: 1) installation of steel pipe support post; 2) i iron spandrel girder is installed; 3) rail beam is installed.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, there is not potential safety hazard.
Description
Technical field
The present invention relates to expressway construction field, specifically ramp bridge and main line bridge join the construction method across erecting beam support system.
Background technology
In the large-scale hinge of speedway is built, many ramp bridges and main line bridging is had to connect (being generally 8 places), and main line bridge is generally designed to separate type, between its two width (not only median strip) but also comparatively near (between a place 0.5m ~ 2.5m), precast beam can be installed simultaneously, conventional method arranges that temporary support made by iron plate stool or shellfish thunder steelframe on handing-over pier capping beam, lay cross moving track, carry out precast beam install again, the material that the method drops into is more, costly, working procedure is many, the time is longer, and poor stability, there is 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 the construction method across erecting beam support system.
Concrete solution is: ramp bridge and main line bridge join across erecting beam support system, by bent cap, be positioned at be fixedly connected with on bent cap and with bent cap steel pipe support post, be positioned at i iron spandrel girder on steel pipe support post and the rail beam be positioned on i iron spandrel girder forms, between i iron spandrel girder and steel pipe support post, be provided with wedge shape hardwood cushion block, be equipped with high-strength hardwood at i iron spandrel girder and between steel pipe support post and rail beam.
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, 4 elongated channel-section steels are provided with along steel pipe periphery, the notch edges of described channel-section steel is fixedly connected with steel pipe, 2 suspension ring for lifting steel pipe support column are fixedly installed along steel pipe periphery symmetry between two channel-section steels, 3 pairs of triangle stiffened steel plates are symmetrically arranged with at steel pipe two ends, one right-angle side of described triangle stiffened steel plates is fixedly connected with steel pipe, another right-angle side is fixedly connected with top board or base plate, base plate and top board are symmetrically arranged with 4 bolts hole respectively, each several part connected mode is and is welded to connect.
The invention also discloses ramp bridge and main line bridge and join construction method across erecting beam support system, comprise the steps:
1) steel pipe support post is installed: on bent cap, carry out surveying and locating and to cross line according to the central point of each steel pipe support post, then according to steel pipe support column base plate size setting-out setting-out; Adopt hand fit mobile crane to be winched to by interim steel pipe support column to transfer at a slow speed above bent cap accurately in place after, to punch on the bent cap of steel pipe support column base plate four side hole with impact electric hammer, then reinforcing bar to be planted after hole and reinforcing bar is bent, until tight steel bonding pipe support column base plate; Be welded on steel pipe support post at interim steel pipe support column dual-side reinforcing bar as tension rib; At bent cap end face opposite side surveying and locating, with impact electric hammer in hole of punching on bent cap, then plant in hole by reinforcing bar, by channel-section steel diagonal brace between steel pipe support post and bent cap embedded bar and firm welding, described base plate is steel plate;
2) i iron spandrel girder is installed: be merged by two i iron, and then welding steel connects and adds powerful plate to form i iron spandrel girder between two i iron.At each welding steel suspension ring of i iron spandrel girder end positions.According to absolute altitude at steel pipe support capital bracing wire laying high-strength hardwood, adopt hand fit mobile crane to be winched to by i iron spandrel girder to transfer at a slow speed above steel pipe support post accurately in place, pre-connection is carried out with i iron spandrel girder after being inserted in pre-embedded bolt with steel plate, carry out the adjustment of i iron spandrel girder absolute altitude, axis, position, then carry out bolton;
3) rail beam is installed: equidistant laying high-strength hardwood on i iron spandrel girder, and rail beam winches to by employing hand fit mobile crane transfers at a slow speed accurately in place above high-strength hardwood, then connect fastening after piercing into the bolt hole at rectangle steel bar two ends with two bolts.
As preferably, the procedure of processing of steel pipe support post is:
1) to cross line at steel pipe end face, 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 symmetrical each welding 2 channel-section steels make ribs, then between two channel-section steels of steel pipe dual-side and from mouth 2/3rds position welded reinforcement suspension ring respectively at the bottom of steel pipe;
3) in steel pipe top, bottom surface, respectively each welding 1 block length square plate, as top board and base plate, is then distinguished in channel-section steel outer side edges and steel pipe top, steel plate junction, bottom surface and is respectively welded 1 piece of triangle stiffened steel plates.
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, there is not 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, triangle stiffened steel plates; 26, suspension ring; 27, bolt hole.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is specifically described.
The procedure of processing of steel pipe support post is:
1) to cross line (being drawn in steel pipe circumferential edge) at steel pipe end face, 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 (namely 2 [olo of 12 channel-section steels is 300mm), then in the respectively symmetrical each welding 2 of steel pipe dual-side, [ribs made by 12 channel-section steels, then [welds Ф 16 reinforcing bar suspension ring respectively from mouth 2/3rds position at the bottom of steel pipe between 12 channel-section steels two of steel pipe dual-side.
3) (on steel pipe end face steel plate, 4 bolt holes are cut by oblong-shaped at steel pipe top, i.e. long 60cm, wide 40cm, and put 4 φ 20 bolts), bottom surface respectively each welding 1 piece of 800mm × 600mm × 10mm rectangle steel plate (position, long limit correspondence is placed on [on 12 channel-section steels), then [12 channel-section steel outer side edges and steel pipe top, steel plate junction, bottom surface is each respectively welds 1 piece of triangle stiffened steel plates (△ 800mm × 800mm × 10mm, totally 8 pieces), join single steel pipe support post across erecting beam to form ramp bridge and main line bridge.
Ramp bridge and main line bridge join the construction method across erecting beam support system, comprise the steps:
1, steel pipe support post is installed
(1) on bent cap, carry out surveying and locating and to cross line according to the central point of each steel pipe support post, then according to steel pipe support column base plate size setting-out setting-out.
(2) adopt hand fit mobile crane to be winched to by interim steel pipe support column to transfer at a slow speed above bent cap accurately in place after, to punch on the bent cap of steel pipe support column base plate four side hole (hole less of Ф 20 reinforcing bar) with impact electric hammer (Ф 19 drill bit), then Ф 20 reinforcing bar to be planted (application reinforcing bar plantation glue) after hole and reinforcing bar is bent, until tight steel bonding pipe support column base plate, see temporary support columns mounting finished product photo, what should be specifically noted that is that steel pipe support post bottom surface must be smooth, steel pipe support post should be vertical, otherwise should level up, hang vertical after could suppress with planting rebar fastening.
(3) be welded on steel pipe support post as tension rib with Ф 20 reinforcing bar interim steel pipe support column dual-side (direction across bridge).Require reinforcing bar and steel pipe support post firm welding.
(4) at bent cap end face opposite side surveying and locating (general equidistant 4m), punching hole, a 10cm position (hole less of Ф 20 reinforcing bar is being about from limit, bent cap place with impact electric hammer (Ф 19 drill bit), and the angle of 8 degree of sloping inwardly will be had), then Ф 20 reinforcing bar is planted (application reinforcing bar plantation glue) in hole, then will [12 channel-section steel diagonal braces between steel pipe support post and bent cap embedded bar and firm welding, be shown in interim steel pipe support column installation process photo.Require that diagonal brace angle is correct, weld seam is full, steel pipe support post is vertical, whole row's steel pipe support post is straight, height one to and in same level.
2, i iron spandrel girder makes, installs
(1) spandrel girder is merged by two I22a i iron and forms.Weld 10mm steel plate at the equidistant 30cm in web both sides of every root i iron to do to add powerful plate, and respectively weld head plate in two ends, and head plate dual-side is respectively cut 3 Ф 20 bolts hole (6, every termination).Two i iron are merged with the center to center distance of 30cm, and then equidistant 60cm welds 10mm steel plate and connects and add powerful plate to form i iron spandrel girder between two i iron.Position each welding steel suspension ring (often holding each 1 piece of both sides, totally 4 pieces) of 1/4 distance (i iron that 6m is long respectively enters 1.5m at two ends) are respectively entered at i iron spandrel girder two ends.
(2) the thick high-strength hardwood of 1cm ~ 3cm is laid according to absolute altitude in the bracing wire of steel pipe support capital, adopt hand fit mobile crane to be winched to by i iron spandrel girder to transfer at a slow speed above steel pipe support post accurately in place, pre-connection is carried out with i iron spandrel girder after using 1cm steel plate (long 10cm, wide 5cm, center are drilled with the bolt hole of Ф 22) to be inserted in pre-embedded bolt again, carry out again i iron spandrel girder absolute altitude, axis, position adjustment (adopt crowbar, triangle wedge type hardwood adjustment) until meet the requirements, then carry out bolton.
3, rail beam is installed
On i iron spandrel girder, equidistant 40cm lays the high-strength hardwood that 4cm is thick, 60cm is long, adopt hand fit mobile crane to be winched to by rail beam to transfer at a slow speed above high-strength hardwood 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 that weld with steel pipe support post) bolt hole (long 40cm, wide 6cm, thick 1.5cm, and be drilled with the bolt hole of Ф 22 at two ends) that pierces into rectangle steel bar two ends connects fastening afterwards.
Claims (3)
1. ramp bridge and main line bridge join the construction method across erecting beam support system, it is characterized in that, ramp bridge and main line bridge join across erecting beam support system by: bent cap, be positioned at be fixedly connected with on bent cap and with bent cap steel pipe support post, be positioned at i iron spandrel girder on steel pipe support post and the rail beam be positioned on i iron spandrel girder forms, between i iron spandrel girder and steel pipe support post, be provided with wedge shape hardwood cushion block, be equipped with high-strength hardwood at i iron spandrel girder and between steel pipe support post and rail beam;
This construction method comprises the steps:
1) steel pipe support post is installed: on bent cap, carry out surveying and locating and to cross line according to the central point of each steel pipe support post, then according to steel pipe support column base plate size setting-out setting-out; Adopt hand fit mobile crane to be winched to by interim steel pipe support column to transfer at a slow speed above bent cap accurately in place after, to punch on the bent cap of steel pipe support column base plate four side hole with impact electric hammer, then reinforcing bar to be planted after hole and reinforcing bar is bent, until tight steel bonding pipe support column base plate; Be welded on steel pipe support post at interim steel pipe support column dual-side reinforcing bar as tension rib; At bent cap end face opposite side surveying and locating, to punch hole, then plant in hole by reinforcing bar with impact electric hammer on bent cap, by channel-section steel diagonal brace between steel pipe support post and bent cap embedded bar and firm welding, described base plate is steel plate;
2) i iron spandrel girder is installed: be merged by two i iron, and then welding steel connects and adds powerful plate to form i iron spandrel girder between two i iron; At each welding steel suspension ring of i iron spandrel girder end positions; According to absolute altitude at steel pipe support capital bracing wire laying high-strength hardwood, adopt hand fit mobile crane to be winched to by i iron spandrel girder to transfer at a slow speed above steel pipe support post accurately in place, pre-connection is carried out with i iron spandrel girder after being inserted in pre-embedded bolt with steel plate, carry out the adjustment of i iron spandrel girder absolute altitude, axis, position, then carry out bolton;
3) rail beam is installed: equidistant laying high-strength hardwood on i iron spandrel girder, and rail beam winches to by employing hand fit mobile crane transfers at a slow speed accurately in place above high-strength hardwood, then connect fastening after piercing into the bolt hole at rectangle steel bar two ends with two bolts.
2. ramp bridge according to claim 1 and main line bridge join the construction method 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, 4 elongated channel-section steels are provided with along steel pipe periphery, the notch edges of described channel-section steel is fixedly connected with steel pipe, 2 suspension ring for lifting steel pipe support column are fixedly installed along steel pipe periphery symmetry between two channel-section steels, 3 pairs of triangle stiffened steel plates are symmetrically arranged with at steel pipe two ends, one right-angle side of described triangle stiffened steel plates is fixedly connected with steel pipe, another right-angle side is fixedly connected with top board or base plate, base plate and top board are symmetrically arranged with 4 bolts hole respectively, each several part is fixedly connected with mode and is and is welded to connect.
3. ramp bridge according to claim 1 and main line bridge join the construction method across erecting beam support system, it is characterized in that, the procedure of processing of described steel pipe support post is:
1) to cross line at steel pipe end face, 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 symmetrical each welding 2 channel-section steels make ribs, then between two channel-section steels of steel pipe dual-side and from mouth 2/3rds position welded reinforcement suspension ring respectively at the bottom of steel pipe;
3) in steel pipe top, bottom surface, respectively each welding 1 block length square plate, as top board and base plate, is then distinguished in channel-section steel outer side edges and steel pipe top, steel plate junction, bottom surface and is respectively welded 1 piece of triangle stiffened steel plates.
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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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| CN103882808A CN103882808A (en) | 2014-06-25 |
| CN103882808B true CN103882808B (en) | 2016-03-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104562924B (en) * | 2014-12-31 | 2016-08-24 | 郑州航空工业管理学院 | Bridge pad from jacking backing plate replacing options |
| CN104594204B (en) * | 2015-01-29 | 2016-01-13 | 中铁十九局集团轨道交通工程有限公司 | Urban light rail viaduct mountain type U beam Construction Supporting System and construction method |
| CN107326793B (en) * | 2017-05-23 | 2019-01-25 | 中建钢构有限公司 | A kind of bicycle high speed is across overpass and its construction method |
| 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 |
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| CN203684102U (en) * | 2013-12-26 | 2014-07-02 | 浙江金筑交通建设有限公司 | Supporting system for precast beam formed by connecting span erection of ramp bridge and main line bridge |
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2013
- 2013-12-26 CN CN201310729362.XA patent/CN103882808B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| KR101024259B1 (en) * | 2010-06-07 | 2011-03-29 | 주식회사 하이드로코리아 | Temporary bride construction method using pile upper bracket |
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| CN102587286A (en) * | 2012-03-28 | 2012-07-18 | 上海市第四建筑有限公司 | Simply supported-continuous construction method for bridge superstructure |
| CN103410093A (en) * | 2013-07-03 | 2013-11-27 | 中交二公局第四工程有限公司 | Reverse dragging device for construction of dragging large-span steel braced girder |
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| CN103882808A (en) | 2014-06-25 |
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