CN102418317A - Field manufacturing method for lattice pier - Google Patents
Field manufacturing method for lattice pier Download PDFInfo
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- CN102418317A CN102418317A CN2011103549869A CN201110354986A CN102418317A CN 102418317 A CN102418317 A CN 102418317A CN 2011103549869 A CN2011103549869 A CN 2011103549869A CN 201110354986 A CN201110354986 A CN 201110354986A CN 102418317 A CN102418317 A CN 102418317A
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Abstract
The invention discloses a field manufacturing method for a lattice pier. The field manufacturing method comprises the following steps of: a, conveying prefabricated upright steel tube, horizontal abdominal tube and base tube to a construction field, and erecting an assembly platform in the construction field, wherein the top of the assembly platform is a horizontal bearing surface; b, hoisting the upright steel tube to be butted to the assembly platform, and positioning; c, hoisting the horizontal abdominal tube to the assembly platform, positioning, and fixing through spot welding; d, performing girth welding on a joint of the upright steel tube to be butted; e, positioning the base tube on the upright steel tube, and welding; f, welding a butted position of the horizontal abdominal tube and the upright steel tube; and g, disassembling the assembly platform, and welding the rest butted positions. Because the assembly platform of which the upper surface is a horizontal plane is erected on the ground, when members of the lattice pier are welded, the members are steadily arranged on the horizontal plane, are fixed before welding, and are pre-located through limiting fixtures, and a condition for non-stress welding is created.
Description
Technical field
The present invention relates to a kind of manufacturing approach of lattice pier, especially a kind of on-the-spot manufacturing approach of lattice pier.
Background technology
The primary structure of bridge lattice pier comprises left and right side column steel pipe, is welded with horizontal cornical between the column steel pipe, and except coxopodite section and epimerite section, all the other sections integral body are " A " type, abbreviate A type truss as.
The 77-79 page or leaf discloses a kind of " doing lake bridge steel pipe lattice pier Installation Technology " in " the railway construction technology " of 2010 the 9th phases; This technology is according to the site contour situation; Bridge lattice pier steel pipe sections is installed and has been adopted tower crane, mobile crane and crawler crane as lifting appliance, has carried out the scene of lattice pier and has installed.The lattice pier is divided into left and right A type truss and three unit sections of stull for every layer; Left and right, width of cloth A type truss and stull have all been accomplished in advance at consolidation shed and have been pieced together, and before the installation, at first handle with sanding machine butt welded seam street corner; Reach joint and do not have greasy dirt, non-corroding; Satisfy welding requirements, and scantling is once checked again, guarantee that subsequent installation carries out smoothly.
But still there is following weak point in it:
When 1, installing at the scene owing to A type truss; The column steel pipe of lifting back lattice pier is normally vertically placed; Need in the attitude of not stopping to adjust A type truss in lifting and the process in place; Because the position that member connects is three-dimensional branch, the control difficulty of welding deformation and residual She's stress is big, is difficult to reach the optimum welding condition of unstressed welding.
During 2, owing to the welding of A type truss integral; Need that the other People's Bank of China of laying changes ladder and working platform in pier position to be installed in advance, in order to aerial work such as to weld, operating personnel need carry out operation task in the air; Higher risk property is arranged, and the aerial work operation easier is bigger than Ground Operation difficulty.
3, during site operation; Because unavoidably there are certain error in the installation of column steel pipe and member processing; And, be prone in the welding process squint, and receive factor such as wind speed bigger because aerial work column shape member is erect processing; The welder need not stop to adjust the welding position, guarantees not produce in the welding process column skew.
4, because A type truss integral is the column shape, need operating personnel's operation aloft, the setting of each height is difficult to realize simultaneously operating, and the welding quality at differing heights place and error differ bigger, and reprocessing of repetition measurement and defective place is comparatively complicated.
Summary of the invention
Goal of the invention of the present invention is: to the problem of above-mentioned existence, a kind of on-the-spot manufacturing approach of lattice pier is provided, realizes that the installation of parts and welding accurately put in place, and effectively reduce difficulty of construction, thereby ensure operating personnel's personal safety, reduce risks.
The technical scheme that the present invention adopts is such: a kind of on-the-spot manufacturing approach of lattice pier may further comprise the steps:
A, the column steel pipe with prefabricated, horizontal cornical and parent tube are transported to the job site, and build platform for lining at the construction field (site), and the top of said platform for lining is the horizontal bearing face;
B, column lifting steel pipes that will be to be docked are also located on platform for lining;
C, horizontal cornical is lifted on the platform for lining, location and spot welding are fixed;
D, the joint girth welding of column steel pipe that will be to be docked;
E, parent tube is located on the column steel pipe, and welding;
F, with the welding of the joint of horizontal cornical and column steel pipe;
G, dismounting platform for lining are accomplished the welding of remaining joint.
Among the said step a, the horizontal bearing face at said platform for lining top comprises the i iron that polylith is fixedly connected, and said i iron upper surface is a horizontal plane.Adopt such method, with outside the venue the produce in factory platform for lining compare, can effectively avoid the destruction of causing to platform for lining because of transportation.
Said i iron is fixedly connected with ground through screw-thread steel, and bury with concreting said i iron bottom.Adopt such method, can make the platform for lining of building by i iron more stable, simultaneously, the pedestal easy accessibility after the concreting, with low cost.
Among the said step b, be provided with drift between said column steel pipe and the platform for lining.Adopt such structure, can be convenient to regulate the straightness accuracy of column steel pipe through the elasticity that drift is everywhere filled in, and can prevent the column steel pipe in welding process owing to receiving external force or change in size produces rolling, and then influence welding quality and splicing accuracy.
Among the said step b, being provided with at the column steel pipe mouth of pipe to be docked can be with the positioner of tube wall alignment.Adopt such method, can realize before the mouth of pipe welding fabrication of column steel pipe that interim constraint is fixing,, be beneficial to the assurance bonding accuracy for the unstressed welding of structure creates conditions.
Said positioner comprises the locating piece that is fixed on the column steel pipe tube wall, and said locating piece is provided with on the column steel pipe in pairs, said locating piece be provided with the column steel shaft to the isometrical hole that parallels.Adopt such structure; Can make the butt joint gap and the unfitness of butt joint of column steel pipe tube wall controlled; When column steel pipe joint unfitness of butt joint is big, install behind the locating piece through on the isometrical hole of locating piece, bolt being set the unfitness of butt joint of the straightness accuracy adjustment joint through bolt additional.
Said positioner comprises pressure mouth and the drift that is fixed on the column steel pipe tube wall, and said pressure mouth and drift be paired adaptive setting on adjacent column steel pipe, and said drift can snap in the pressure mouth on the adjacent upright posts steel pipe.Adopt such structure, can make the butt joint gap and the unfitness of butt joint of column steel pipe tube wall controlled, when column steel pipe joint unfitness of butt joint is big, install drift and pressure mouth additional,, adjust the unfitness of butt joint of joint through the tightness degree that snaps at drift and pressure mouth.
Among the said step e; The localization method of parent tube on the column steel pipe is: earlier the parent tube end face is transferred to level; Again in parent tube end face fixed steel ruler; The end of said steel bar is connected with plumb line, and the position of parent tube is adjusted after tangent with the column steel pipe in the position of adjustment plumb line according to the measured distance of parent tube and plumb line.Thus, can be when guaranteeing the parent tube upper surfaces level, actual range and the error between the calculated value between parent tube and column steel pipe edge are dwindled.
In the said step g, remove platform for lining after, the welding of welding in the overhead position of lifting lattice pier again, the weld seam that will be positioned at the bottom.Adopt such method, can guarantee the whole joint of lattice pier is evenly welded, realize not having the welding blind spot.
Among the said step c, spacing frock is being installed between the column steel pipe of horizontal cornical both sides, said horizontal cornical bottom is provided with at least one cushion block.Adopt such method, can guarantee that horizontal cornical whole height is consistent, avoid influencing welding quality because of pipe fitting deformation.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, be the platform for lining of horizontal plane owing to having set up upper surface on ground; Each member of lattice pier is when welding; Each member all is placed on the horizontal plane reposefully; Simultaneously each member fixes before welding, and the position of member realized pre-determined bit through spacing frock, for condition has been created in unstressed welding.
2, carry out on ground owing to welding process; Do not adopt the mode of work high above the ground to weld after not needing in advance the lattice pier to be sling, guaranteed safety of operators, ground Job Operations difficulty is littler than aerial work difficulty simultaneously; Stability increases during welding, and welding quality is better.
The lattice pier is horizontal on horizontal plane during 3, owing to welding; Be difficult in the welding process squinting because of ambient influnences such as wind-force sizes; Need not ceaselessly to revise the attitude of lattice pier A type frame according to the wind-force size; Under the situation of gentle breeze, also can continue operation, improve the environmental suitability of construction through setting up modes such as windbreak.
4,, and can guarantee the uniformity of each weld welding quality through the synchronous welding operation of each point position because the lattice pier is horizontal in the horizontal plane welding, and the welding quality and the error at differing heights place differ bigger when having avoided vertical the welding.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation of platform for lining.
Fig. 2 is the structural representation of preparatory assembly unit of column steel pipe and locating piece;
Fig. 3 is the cross-sectional structure sketch map of preparatory assembly unit of column steel pipe and locating piece;
Fig. 4 is the sketch map of horizontal cornical and the method for attachment of column steel pipe;
Fig. 5 is the sketch map of parent tube and column steel pipe localization method;
Fig. 6 is the cross-sectional structure sketch map of parent tube and column steel pipe location;
Fig. 7 is the structural representation of spacing frock between the column steel pipe.
Reference numeral is following: i iron-1; Left side width of cloth center line-101; Right width of cloth center line-102; Platform for lining center line-103; Column steel pipe-2; Locating piece-201; Bolt-202; Horizontal cornical-3; Cushion block-301; Parent tube-4; Steel Ruler-401; Plumb line-402; Spacing frock-501.
The specific embodiment
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this manual (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The on-the-spot manufacturing approach of a kind of lattice pier of the present invention mainly may further comprise the steps:
A, build platform for lining
At first, see Fig. 4 and Fig. 5, prefabricated column steel pipe 2, horizontal cornical 3 and parent tube 4 are transported to the job site.
As shown in Figure 1, build platform for lining at the construction field (site) temporarily, the top of platform for lining is the horizontal bearing face; Build for the ease of platform for lining, the horizontal bearing face at platform for lining top can be assembled by the i iron 1 of a plurality of parallel placements, and the end face after i iron 1 assembling still is a horizontal plane; I iron 1 can be fixedly connected with ground through screw-thread steel; Preferably, below i iron 1, be lined with steel plate, the steel plate bottom surface is supported with screw-thread steel.
After platform for lining is built completion, with level gauge the upper surface of every block of i iron 1 is smoothed, height error is in the scope of ± 1mm.In order to make platform for lining more stable, after platform for lining is built completion, pedestal is built and buried into to the steel plate and the screw-thread steel of the bottom of i iron 1 with concrete.
B, column lifting steel pipes that will be to be docked are also located on platform for lining
At first, mark the reference line of setting-out:
Be assemblied with unified reference standard to make things convenient for the full-page proof placement and the size Control of assembly unit in order to make; Center line draws on platform for lining; And platform for lining is divided into the left width of cloth and two assembly unit zones of the right width of cloth; Its center line separately that in the left and right width of cloth, draws, as the benchmark of follow-up setting-out, left width of cloth center line 101, right width of cloth center line 102 are parallel to each other with platform for lining center line 103.
Confirmed after the center line of platform for lining center line 103 and left and right pair that the upper surface of using appearance to be punched in i iron 1 is got sampling point and marked, and with red lacquer mark.Sampling point should comprise the point that is positioned on platform for lining two i iron 1 at least, and the quantity and spacing of intermediate point can suitably be placed according to the length of the column steel pipe 2 that is housed to.
According to the center line of mark on the i iron 1,, mark the outer rim point of column steel pipe 2 both sides at i iron 1 upper surface in conjunction with the theoretical value of the caliber width of column steel pipe 2.And be labeled on the i iron 1 reference of putting as column steel pipe 2 with the trim line of the method for drawing chalk line with column steel pipe 2.
Then, full-page proof is placed:
Consider the influence that the welding contraction causes,, suitably length dimension is reserved 2～3mm, be about to the gap that column steel pipe 2 adjacent, to be welded is provided with 2～3mm in the vertical according to the theoretical size of actual column steel pipe 2 longitudinal lengths.Wherein, after adjacent column steel pipe 2 refers to be welded into lattice pier A type frame integral body, the column steel pipe 2 that is close on the whole.
Be provided with drift between column steel pipe 2 and the platform for lining, through the gap length of drift adjusting column steel pipe 2, to play effect with column steel pipe 2 bandings with platform for lining; Preferably; Every placement one joint column steel pipe 2, the mode of between the bottom of this column steel pipe 2 and i iron 1, filling in one or more drift is fastening, to prevent in welding process; Owing to receive external force or, influence welding quality and splicing accuracy because of change in size causes 2 rollings of column steel pipe.
Preferably, for the ease of with next column steel pipe 2 to piecing together, after every section column steel pipe 2 is in place, at the mouth of pipe inwall welding guide strip of corresponding column steel pipe 2, be used for next column steel pipe 2 putting and fixing.
At last, carry out the location and the preparatory assembly unit of column steel pipe:
Like Fig. 2, shown in Figure 3, put column steel pipe 2 after, being provided with at the mouth of pipe of column steel pipe 2 to be docked can be with the positioner of joint tube wall alignment; Positioner comprises pressure mouth and the drift that is fixed on column steel pipe 2 tube walls, and pressure mouth and drift make the mouth of pipe alignment of adjacent two root post steel pipes 2 in the paired adaptive setting of column steel pipe 2 joints through extruding; Wherein drift is skewed; Can snap in the rotation of column steel pipe 2 in the corresponding with it pressure mouth, preferred, on the tube wall of column steel pipe 2, be provided with many to pressure mouth and drift; When column steel pipe 2 rotation directions are consistent, the every pair of pressure mouth and drift to tighten or loosen state direction consistent.Drift also can be used with the suitable pressure tongue of pressure mouth shape and substitute.
After having put column steel pipe 2; Adjust butt joint gap and unfitness of butt joint through modes such as pressure mouth and drift cooperations; Welding locating piece 201 on the tube wall of column steel pipe 2; Locating piece 201 is provided with at the joint of column steel pipe 2 adjacent, to be docked in pairs, and locating piece 201 is provided with the isometrical hole with column steel pipe 2 axially parallels.Tighten fixingly after locating piece 201 welding is accomplished with bolt 202 or steel bar, play spacing and fixing effect.Preferably, install and weld a plurality of corresponding locating pieces 201 respectively, make that the locating piece 201 on adjacent upright posts steel pipe 2 can cooperatively interact to realize the location of column steel pipe 2 on every section column steel pipe 2 first-class angle of circumference ground.
After locating piece 201 installations, the situation of change of repetition measurement overall dimensions, the especially size of each column steel pipe 2 mouth of pipe guarantee the theoretical size no change before its overall dimensions and locating piece 201 are installed.If change in size is arranged, can cooperate with pressure mouth or locating piece 201 adjustment through drift.
The installation of c, horizontal cornical and welding
As shown in Figure 4, before installing at the scene, horizontal cornical 3 is accomplished cutting stock between the line cutting car, and cutting adopts the wire cutting machine blanking to accomplish automatically, can well dock with the column steel pipe to guarantee horizontal cornical 3.Consider the shrinkage strain after welding is accomplished, horizontal cornical 3 amplifies blanking behind the 2mm than theoretical size.
Be transported to the job site after completing, treat after the column steel pipe 2 welding completion of the left and right width of cloth horizontal cornical 3 to be hung between two column steel pipes 2 to be connected, before installation, calculate and draw the theoretic clearance between horizontal cornical 3 and the platform for lining.
Before the installation, at first confirm horizontal cornical 3 central points at column steel pipe 2 position and the mark on axially, after the center is confirmed, place line, hoisted in position and spot welding again according to the theoretical size of horizontal cornical 3 its outer rim of drawing according to drawing.
The location of short transverse during for ease of the placement of horizontal cornical 3 makes a collection of height and horizontal cornical 3 cushion block 301 identical with the platform for lining theoretic clearance in advance, and cushion block 301 can be welded by channel-section steel and batten plate.At the every a plurality of cushion blocks 301 of horizontal cornical 3 underlays, after cushion block 301 is put completion, check the elevation of cushion block 301 with level gauge, make relative error in 2mm.
The horizontal cornical 3 joint lines of consideration are not the street corners, plane; And A type frame integral body is skewed, and every horizontal cornical 3 can not directly from top to bottom vertically be put into when lifting, should be from preset bottom, joint; Upwards vertically hang in gradually, move to preset joint location again;
And horizontal cornical 3 is in the tubulature order on the whole of lattice pier A type frame; Should at first pack into from A type frame top to bottom order successively; Interfere the installation of its upper horizontal cornicals 3 to avoid owing to be positioned at the horizontal cornical 3 of bottom, thereby guarantee that every horizontal cornical 3 can both pack into smoothly.
Behind the load level cornical 3, should be in horizontal cornical 3 outer rims with after the placement line that is labeled in column steel pipe 2 outer rims overlap, spot welding fixed level cornical 3 is also adopted in adjustment, carries out the installation of the horizontal cornical 3 of next root again.
D, joint girth welding
In the location of the preparatory assembly unit of column steel pipe 2 and horizontal cornical 3 with after assembly unit is accomplished in advance; Girth welding is carried out in column steel pipe 2 joints to be docked; Manual electric arc welding technology is adopted in girth welding; And adopt the method for two people's balanced weldings to weld, with the bottoming of φ 3.2mm welding rod, φ 4.0mm welding rod is filled and capping.
Girth welding is measured straightness accuracy after accomplishing once more, then reprocesses processing beyond the standard if exceed.Will carry out carrying out flaw detection after qualified, examination criteria was consistent when weldquality grade and defect system were marched into the arena with the unit steel pipe.
Location and installation and the welding on the column steel pipe of e, parent tube
The member that bridge pier horizontal-associate truss is connected with column is a parent tube, and the bottom of parent tube 4 is connected with column steel pipe 2, and the installation of parent tube 4 need be treated to carry out after 3 welding of vertical equity cornical are accomplished.
The controlling dimension that parent tube 4 is installed comprises that it is in confirming of column steel pipe 2 axial locations and confirming along position on column steel pipe 2 outer walls.
Like Fig. 5, shown in Figure 6,, parent tube 4 is transferred to level in the vertical at parent tube to be installed 4 spirit levels of laying suitable for reading; Draw a steel bar through parent tube 4 centers then, and hang plumb line 402, the position of adjustment plumb line 402 from the end of steel bar; Make its just with column steel pipe 2 tangent after, measure the distance of plumb lines 402 and parent tube 4, adjustment parent tube 4 positions with Steel Ruler 401; Make plumb line 402 and the distance of parent tube and identical the getting final product of distance of Theoretical Calculation gained, allowable error ± 1mm.
Can when being installed, should fill up by parent tube 4 welding rod of φ 3.2mm in the joint in advance according to the complete penetration weld of welding procedure for guaranteeing the joint.First spot welding was fixed after adjustment finished, and after the welding rod that will fill up in advance then removes, welded according to welding process requirement again.
The joint welding of f, horizontal cornical and column steel pipe
After treating that horizontal cornical 3 all installs, can carry out the welding of wire terminal place.
Between the column steel pipe 2 at horizontal cornical 3 two ends, be provided with symmetry and shore the spacing frock of type 501 control welding deformations, with the shrinkage strain after guaranteeing to weld in the error allowed band.Wherein, the quantity of spacing frock 501 can be one, also can be a plurality of.
According to the space between the adjacent level cornical 3, when the spacing of two root post steel pipes 2 is bigger, in the time of can holding two people and weld simultaneously, single tube adopts the welding of two people symmetry, does the time spent simultaneously when not holding two people, and then single tube adopts single symmetry welding.
Because horizontal cornical 3 is little in the platform for lining ground clearance, can't carry out all-position welding, bottom surface portions must be treated to sling after sections is removed and continue welding again.
G, dismounting platform for lining are accomplished the welding of remaining joint
As shown in Figure 7, after welding is accomplished, the whole construction system change in size of repetition measurement amount; After the passed examination; Platform for lining is removed, and with straddle truck with the whole construction system lifting certain altitude of slinging, the electric welder takes the overhead welding mode to accomplish the welding of remaining mutually joint; In the step, column steel pipe 2 was close to the part on the platform for lining before wherein remaining joint mainly comprised.
In order to ensure scene welding quality, temperature, humidity and three key indexs of wind speed need control during on-the-spot the welding.Wherein the requirement of manual electric arc welding does, wind speed must not surpass 8m/s, and relative air humidity must not be greater than 80%, and environment temperature should not be lower than 5 ℃, when welding naturally environment does not reach this index, must take windproof canopy or other windproof and insulation measures.
The present invention is not limited to the aforesaid specific embodiment.The present invention can expand to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1. the on-the-spot manufacturing approach of a lattice pier is characterized in that: may further comprise the steps:
A, the column steel pipe with prefabricated, horizontal cornical and parent tube are transported to the job site, and build platform for lining at the construction field (site), and the top of said platform for lining is the horizontal bearing face;
B, column lifting steel pipes that will be to be docked are also located on platform for lining;
C, horizontal cornical is lifted on the platform for lining, location and spot welding are fixed;
D, the joint girth welding of column steel pipe that will be to be docked;
E, parent tube is located on the column steel pipe, and welding;
F, with the welding of the joint of horizontal cornical and column steel pipe;
G, dismounting platform for lining are accomplished the welding of remaining joint.
2. the on-the-spot manufacturing approach of lattice pier according to claim 1 is characterized in that: among the said step a, the horizontal bearing face at said platform for lining top comprises the i iron that polylith is fixedly connected, and said i iron upper surface is a horizontal plane.
3. the on-the-spot manufacturing approach of lattice pier according to claim 2 is characterized in that: said i iron is fixedly connected with ground through screw-thread steel, and bury with concreting said i iron bottom.
4. the on-the-spot manufacturing approach of lattice pier according to claim 1 is characterized in that: among the said step b, be provided with drift between said column steel pipe and the platform for lining.
5. the on-the-spot manufacturing approach of lattice pier according to claim 1 is characterized in that: among the said step b, being provided with at the column steel pipe mouth of pipe to be docked can be with the positioner of tube wall alignment.
6. the on-the-spot manufacturing approach of lattice pier according to claim 5; It is characterized in that: said positioner comprises the locating piece that is fixed on the column steel pipe tube wall; Said locating piece is provided with on the column steel pipe in pairs, said locating piece be provided with the column steel shaft to the isometrical hole that parallels.
7. the on-the-spot manufacturing approach of lattice pier according to claim 5; It is characterized in that: said positioner comprises pressure mouth and the drift that is fixed on the column steel pipe tube wall; Said pressure mouth and drift be paired adaptive setting on adjacent column steel pipe, and said drift can snap in the pressure mouth on the adjacent upright posts steel pipe.
8. the on-the-spot manufacturing approach of lattice pier according to claim 1; It is characterized in that: among the said step e; The localization method of parent tube on the column steel pipe is: earlier the parent tube end face is transferred to level, in parent tube end face fixed steel ruler, the end of said steel bar is connected with plumb line again; The position of parent tube is adjusted after tangent with the column steel pipe in the position of adjustment plumb line according to the measured distance of parent tube and plumb line.
9. the on-the-spot manufacturing approach of lattice pier according to claim 1 is characterized in that: in the said step g, remove platform for lining after, the welding of welding in the overhead position of lifting lattice pier again, the weld seam that will be positioned at the bottom.
10. the on-the-spot manufacturing approach of lattice pier according to claim 1 is characterized in that: among the said step c, spacing frock is being installed between the column steel pipe of horizontal cornical both sides, said horizontal cornical bottom is provided with at least one cushion block.
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| CN2011103549869A CN102418317A (en) | 2011-11-10 | 2011-11-10 | Field manufacturing method for lattice pier |
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| CN2011103549869A CN102418317A (en) | 2011-11-10 | 2011-11-10 | Field manufacturing method for lattice pier |
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| CN102418317A true CN102418317A (en) | 2012-04-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593085A (en) * | 2019-10-24 | 2019-12-20 | 中国电建集团成都勘测设计研究院有限公司 | Method for mounting steel pipes of lattice pier of bridge steel pipe |
| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737313A (en) * | 2004-08-20 | 2006-02-22 | 中国建筑第八工程局第一建筑公司青岛分公司 | Inclined triangular pyramid truss type frame construction and method for making, mounting and measuring the same |
| CN101074554A (en) * | 2007-06-15 | 2007-11-21 | 四川省交通厅公路规划勘察设计研究院 | Steel-pipe concrete assembled pier |
| CN101748692A (en) * | 2010-03-10 | 2010-06-23 | 浙江东南网架股份有限公司 | Production process for standard knot of assembled lattice support bracket and installation jig |
| CN101759079A (en) * | 2009-12-30 | 2010-06-30 | 山西四建集团有限公司 | Method for integrally assembling and installing steel structure elevator derrick on the ground |
| CN201649668U (en) * | 2009-09-22 | 2010-11-24 | 中冶成工上海五冶建设有限公司 | Lattice column lifting frame |
| CN102126108A (en) * | 2010-12-30 | 2011-07-20 | 山东杭萧钢构有限公司 | Novel process for manufacturing lattice type steel column |
-
2011
- 2011-11-10 CN CN2011103549869A patent/CN102418317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737313A (en) * | 2004-08-20 | 2006-02-22 | 中国建筑第八工程局第一建筑公司青岛分公司 | Inclined triangular pyramid truss type frame construction and method for making, mounting and measuring the same |
| CN101074554A (en) * | 2007-06-15 | 2007-11-21 | 四川省交通厅公路规划勘察设计研究院 | Steel-pipe concrete assembled pier |
| CN201649668U (en) * | 2009-09-22 | 2010-11-24 | 中冶成工上海五冶建设有限公司 | Lattice column lifting frame |
| CN101759079A (en) * | 2009-12-30 | 2010-06-30 | 山西四建集团有限公司 | Method for integrally assembling and installing steel structure elevator derrick on the ground |
| CN101748692A (en) * | 2010-03-10 | 2010-06-23 | 浙江东南网架股份有限公司 | Production process for standard knot of assembled lattice support bracket and installation jig |
| CN102126108A (en) * | 2010-12-30 | 2011-07-20 | 山东杭萧钢构有限公司 | Novel process for manufacturing lattice type steel column |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593085A (en) * | 2019-10-24 | 2019-12-20 | 中国电建集团成都勘测设计研究院有限公司 | Method for mounting steel pipes of lattice pier of bridge steel pipe |
| CN110593085B (en) * | 2019-10-24 | 2020-11-10 | 中国电建集团成都勘测设计研究院有限公司 | Method for mounting steel pipes of lattice pier of bridge steel pipe |
| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
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Application publication date: 20120418 |