CN102635061A - Mountain stream river-crossing inclined zipper trestle and hoisting method thereof - Google Patents
Mountain stream river-crossing inclined zipper trestle and hoisting method thereof Download PDFInfo
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- CN102635061A CN102635061A CN2012101138081A CN201210113808A CN102635061A CN 102635061 A CN102635061 A CN 102635061A CN 2012101138081 A CN2012101138081 A CN 2012101138081A CN 201210113808 A CN201210113808 A CN 201210113808A CN 102635061 A CN102635061 A CN 102635061A
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Abstract
A mountain stream river-crossing oblique zipper trestle and a hoisting method thereof are disclosed, wherein the mountain stream river-crossing oblique zipper trestle is of a four-roof structure and comprises a trestle steel frame and a steel frame stand column, the trestle steel frame is connected end to end through four sections, the connection part of a first trestle steel frame and a second trestle steel frame is supported by the steel frame stand column, the connection part of the second trestle steel frame and a third trestle steel frame is supported by a steel frame long stand column, the lower end of the first trestle steel frame is supported by a low-order fulcrum, the second trestle steel frame and the third trestle steel frame are positioned above a river bed, the upper end of the third trestle steel frame is supported by a second-order high fulcrum, the lower end of the fourth trestle steel frame is supported by a second-order high fulcrum, and the upper end of the fourth trestle steel frame is supported by a highest-order rolling support. The invention solves the technical problems that the mountain stream river-crossing cable-stayed chain trestle is provided with a frame body at high altitude, and the manufacturing and the assembly of components at high altitude are time-consuming, labor-consuming and laborious.
Description
Technical field
The present invention relates to a kind of building trestle and job practices thereof, oblique slide fastener trestle of particularly a kind of steel work and hanging method thereof.
Background technology
The lifting of tradition mountain stream cross a river oblique slide fastener trestle adopts the method for setting up support body to construct and install; This method of setting up support body, the height that makes operating personnel must be raised to tens meters is constructed in the air, and member is in height aerial making and assembly unit; Time duration is long, the effort of taking a lot of work.
Summary of the invention
The purpose of this invention is to provide oblique slide fastener trestle of a kind of mountain stream cross a river and hanging method thereof, when solving traditional oblique slide fastener trestle and setting up support body in the high-altitude, member is in the aerial making of height and the technical problem of all time-consuming effort of taking a lot of work of assembly unit.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The oblique slide fastener trestle of a kind of mountain stream cross a river; Be that four Pin four stride structure, comprise trestle steel frame and steel frame column, said trestle steel frame joins end to end by four sections; The one Pin trestle steel frame is supported by steel frame column with the part that is connected of the 2nd Pin trestle steel frame; The 2nd Pin trestle steel frame is connected part by the long upright supports of steelframe with the 3rd Pin trestle steel frame, and the lower end of a Pin trestle steel frame is supported by the low level fulcrum, and the 2nd Pin trestle steel bracket and the 3rd Pin trestle steel frame are positioned at the top in riverbed; The upper end of the 3rd Pin trestle steel frame is supported in time high-order fulcrum; The lower end of the 4th Pin trestle steel frame is supported by inferior high-order fulcrum, and the upper end of the 4th Pin trestle steel frame is supported by the highest order roller support, and the short column of said steelframe is an integral body; The long column of steelframe docks up and down by two to four sections and forms, and joint is welded with junction plate and locating piece.
The hanging method of the oblique slide fastener trestle of a kind of mountain stream cross a river has following steps:
The basis of step 4, the short column of construction steelframe and the long column of steelframe; Lift short column of steelframe and the long column of steelframe then; The installation that is installed as integral hoisting, the long column of steelframe of the short column of steelframe divide four sections prefabricated, the long column of steelframe carries out the high-altitude and assembles in the fabricating yard;
In the said step 4, the basis of the short column of construction steelframe is after foundation construction finishes; Inspection suspension column built-in fitting is also revised built-in fitting top mark height, and stone bolt adds the adjustment nut, gets flitch or sleeper that the mobile crane kick is used ready; The short column of steelframe adopts the direct hoisted in position of the whole unit of mobile crane on the low level fulcrum one side riverbank; The installation deviation of member is controlled in the standard allowed band, and the bearing axis of trestle and embedded part axes align, and carries out stone bolt after absolute altitude adjustment is errorless again and fixes or weld.
In the said step 4; After the foundation construction of the long column of steelframe finishes; Check the verticality and the capital absolute altitude of suspension column built-in fitting and amending column, need on member, tie up the steel cat ladder before the member lifting, the mobile crane on the lifting employing time high-order fulcrum one side riverbank is as main loop wheel machine tool unit segmental hoisting; Auxiliary scattered of tower crane is had bad luck and is installed; The installation deviation of member is controlled in the standard allowed band, and the bearing axis of trestle and embedded part axes align, and carries out stone bolt after absolute altitude adjustment is errorless again and fixes or weld.
In the said step 4, the mobile crane on time high-order fulcrum one side riverbank is adopted in the lifting of the long column of steelframe, and the suspension centre height should guarantee under the level that wire rope and the trestle angle that winds up is not less than 60 and spends; Special-purpose colligation rope is adopted in the colligation of member, and the lifting wire rope connects with the colligation rope through snap ring, and winching to overhead the 300mm height will have a break; Each supporting leg of inspection mobile crane has or not sagging situation, if any sinking, should put down member; Again with the leveling of crane supporting leg, lifting again again is after lifting component puts in place; The base plate axis of trestle is aligned with the axis that props up top of the trellis; Installation deviation is controlled in the standard allowed band, for the long column segmentation of steelframe top overproof to add pading plate adjustment, after absolute altitude and axis are adjusted, bolton or electric welding are fixed.
In the said step 4, the correction of the long column of steelframe: the long column multistage of steelframe merogenesis is installed, and jackscrew is adopted in the correction of verticality.
The erection method of trestle platform for lining does in the said step 3; Earlier one group of supporting leg is set separately at two short side directions of trestle platform for lining, two long side directions at platform are provided with supporting leg by trestle truss span below each cross-node then, fixing elongated grade beam below every group of supporting leg; Said grade beam is parallel with minor face; And length is greater than the bond length of platform, and the spacing of two adjacent supporting legs is greater than the width of riverbed surface disposal ditches, in the bottom surface of grade beam, corresponding to each supporting leg below a fixing area greater than the base plate of supporting leg cross section; Between grade beam and adjacent grade beam, be connected stull, at last diagonal brace be fixed between supporting leg and the adjacent legs.
In the said step 4, the waist of the long column of steelframe is installed the bean column node job platform, is used for step 6, seven post beam-ends node is installed and welding.
The erection method of said bean column node job platform does, at two blocks of supporting plates of the relative both sides welding of steel column shaft, is close to two platform joists of overlap joint on the supporting plate of shaft both sides; Punch on the web of platform joist, two screw rods are passed hole and anchoring on the platform joist web, the screw rod symmetry is positioned at the shaft both sides; Set up steel pipe frame and railing on the platform joist; Springboard is tiled on the steel pipe frame, and railing is movable steelframe at last people's oral-lateral, and springboard is installed at last people's oral-lateral and covered folding cover plate; The fixed axis of folding cover plate and platform joist parallel, away from the inboard welded cover plate joist of the platform joist of fixed axis one side.
Compared with prior art the present invention has following characteristics and beneficial effect:
The invention solves the existing oblique slide fastener trestle of mountain stream cross a river and need set up the technical problem that support body is installed in the air at height; Saved member in aerial making of height and defective in the assembly unit process; Reduction of erection time, save manpower, can be widely used in the oblique slide fastener trestle of mountain stream cross a river.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Fig. 1 is the position view of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 2 is the scheme of installation of a Pin trestle steel frame of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 3 is the scheme of installation of the 2nd Pin trestle steel frame of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 4 is the scheme of installation of the 3rd Pin trestle steel frame of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 5 is the scheme of installation of the 4th Pin trestle steel frame of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 6 is the scheme of installation of first section on the long column of steelframe of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 7 is the scheme of installation of second section on the long column of steelframe of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 8 is the scheme of installation of the 3rd section on the long column of steelframe of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Fig. 9 is the scheme of installation of the 4th section on the long column of steelframe of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Figure 10 is a Pin trestle steel frame and the on-the-spot plan view of the 2nd Pin trestle steel frame lifting construction of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Figure 11 is the 3rd Pin trestle steel frame and the on-the-spot plan view of the 4th Pin trestle steel frame lifting construction of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Figure 12 is the structural representation of trestle platform for lining in the step 3 of hanging method of the present invention.
Figure 13 is the structural representation of the step 4 longeron post node job platform embodiment one of hanging method of the present invention.
Figure 14 is the structural representation of the step 4 longeron post node job platform embodiment two of hanging method of the present invention.
Figure 15 is the sketch map of the steel frame column rectify perpendicular of the oblique slide fastener trestle of mountain stream cross a river of the present invention.
Reference numeral: 1-the one Pin trestle steel frame; 2-the 2nd Pin trestle steel frame; 3-the 3rd Pin trestle steel frame; 4-the 4th Pin trestle steel frame; The short column of 5-steelframe; 6-low level fulcrum; 7-high-order fulcrum; The 8-riverbed; The 9-jack; The 10-junction plate; The 11-locating piece; 12-trestle platform for lining; 12.1-grade beam; 12.2-stull; 12.3-supporting leg; 12.4-diagonal brace; 12.5-base plate; 12.6-disposal ditches; The long column of 13-steelframe; Mobile crane on 14-high-order fulcrum one side riverbank; Mobile crane on the 15-low level fulcrum one side riverbank; The 16-tower crane; 17-highest order roller support; 18-bean column node job platform; 18.1-steel column; 18.2-supporting plate; 18.3-platform joist; 18.4-screw rod; 18.5-steel pipe frame; 18.6-springboard; 18.7-folding cover plate; 18.8-fixed axis; 18.9-cover plate joist.
The specific embodiment
Embodiment is referring to shown in Figure 1, and the oblique slide fastener trestle of a kind of mountain stream cross a river is that four Pin four stride structure; Comprise trestle steel frame and steel frame column, said trestle steel frame joins end to end by four sections, and a Pin trestle steel frame 1 is supported by steel frame column 5 with the part that is connected of the 2nd Pin trestle steel frame 2; The 2nd Pin trestle steel frame 2 is supported by the long column 13 of steelframe with the part that is connected of the 3rd Pin trestle steel frame 3; The lower end of the one Pin trestle steel frame 1 is supported by low level fulcrum 6, and the 2nd Pin trestle steel bracket 2 and the 3rd Pin trestle steel frame 3 are positioned at the top in riverbed 8, and the upper end of the 3rd Pin trestle steel frame 3 is supported in time high-order fulcrum 7; The lower end of the 4th Pin trestle steel frame is supported by inferior high-order fulcrum 7; The upper end of the 4th Pin trestle steel frame is supported by highest order roller support 17, and said steel frame column 5 is an integral body, and said steel frame column 13 docks up and down by two to four sections and forms; Referring to shown in Figure 15, joint is welded with junction plate 10 and locating piece 11.
The hanging method of the oblique slide fastener trestle of this cross a river of mountain stream as previously discussed has following steps:
Referring to shown in Figure 12, trestle platform for lining 12 is positioned on the riverbed 9, and it is shaped as rectangle; It comprises supporting leg 12.3, table top Vierendeel girder and panel; Erection method is for be provided with one group of supporting leg 12.3 earlier at two short side directions of trestle platform for lining 12 separately, and two long side directions at platform are provided with supporting leg by trestle truss span below each cross-node then, fixing elongated grade beam 12.1 below every group of supporting leg; Said grade beam 12.1 is parallel with minor face; And length is greater than the bond length of platform, and the spacing of two adjacent supporting legs is greater than the width of riverbed surface disposal ditches 12.6, in the bottom surface of grade beam 12.1, corresponding to each supporting leg 12.3 below a fixing area greater than the base plate 12.5 of supporting leg cross section; Between grade beam 12.1 and adjacent grade beam, be connected stull 12.2, at last diagonal brace 12.4 be fixed between supporting leg 12.3 and the adjacent legs.
The web both sides of said grade beam 12.1 are being welded with stiffener corresponding to the position below the supporting leg 12.3.
In the present embodiment, desirable base plate is a steel plate, and specification is-20X500X500 that grade beam 12.1 is the hot rolled H-shaped of HN400X200.Stull 12.2 is No. 10 channel-section steels.Supporting leg 12.2 is an i iron.The table top Vierendeel girder is the H shaped steel of HW200X200.Diagonal brace 12.4 is the round steel pipe of diameter 80mm.
Before the assembly unit trestle,, set up trestle platform for lining 12 earlier with riverbed 9 smooth padding; For guaranteeing the safety of platform; All channel-section steels preferably use more than No. 10, and grade beam 12.1 is placed on the node location of trestle, receive the influence of the field condition and the lifting appliance radius of gyration; The trestle platform for lining should shift to an earlier date unwrapping wire location, in order to avoid the trestle assembly unit exceeds the radius of gyration of mobile crane after good.After the trestle assembly unit is accomplished, remove platform for lining.
The basis of step 4, the short column 5 of construction steelframe and the long column 13 of steelframe; Lift short column 5 of steelframe and the long column 13 of steelframe then; The installation that is installed as integral hoisting, the long column 13 of steelframe of the short column 5 of steelframe divide four sections prefabricated, the long column 13 of steelframe carries out the high-altitude and assembles in the fabricating yard;
The basis of the short column 5 of construction steelframe, after foundation construction finished, inspection suspension column built-in fitting was also revised built-in fitting top mark height; Stone bolt adds the adjustment nut; Get flitch or sleeper that the mobile crane kick is used ready, the short column 5 of steelframe adopts the direct hoisted in position of mobile crane 15 whole units on the low level fulcrum one side riverbank, and the installation deviation of member is controlled in the standard allowed band; The bearing axis of trestle and embedded part axes align, and carry out stone bolt after absolute altitude adjustment is errorless again and fix or weld.
After the foundation construction of the long column 13 of steelframe finishes; The verticality and the capital absolute altitude of inspection suspension column built-in fitting and amending column; Need on member, to tie up the steel cat ladder before the member lifting; Adopt the mobile crane 14 that lifts on the employing time high-order fulcrum one side riverbank as main loop wheel machine tool unit segmental hoisting, tower crane 16 is assisted scattered and is had bad luck and install, and the installation deviation of member is controlled in the standard allowed band; The bearing axis of trestle and embedded part axes align, and carry out stone bolt after absolute altitude adjustment is errorless again and fix or weld.
The mobile crane 14 on time high-order fulcrum one side riverbanks is adopted in 13 liftings of the long column of steelframe, and the suspension centre height should guarantee under the level that wire rope and the trestle angle that winds up is not less than 60 degree, and the colligation of member adopts special-purpose colligation to restrict; The lifting wire rope connects through snap ring and colligation rope, and winching to overhead the 300mm height will have a break, and checks that each supporting leg of mobile crane has or not sagging situation; If any sinking, should put down member, again with the leveling of crane supporting leg; Again lifting again; After lifting component puts in place, the base plate axis of trestle and the axis of a top of the trellis are aligned, installation deviation is controlled in the standard allowed band; For the long column of steelframe 13 segmentation tops overproof to add pading plate adjustment, after absolute altitude and axis are adjusted, bolton or electric welding are fixed.
Referring to shown in Figure 15, the correction of the long column 13 of steelframe, jackscrew 9 is adopted in the correction of verticality.
Referring to Fig. 6-shown in Figure 9, the long column 13 multistage merogenesis of steel column are installed.
Referring to Figure 13 and shown in Figure 14, the waist of the long column 13 of steelframe is installed bean column node job platform 18, is used for step 6, seven post beam-ends node is installed and welding.The erection method of said bean column node job platform 18 does; Two blocks of supporting plates 18.2 of welding in the relative both sides of steel column 18.1 shafts are close to two platform joists 18.3 of overlap joint on the supporting plate 18.2 of shaft both sides, punch on the web of platform joist 18.3; Two screw rods 18.4 are passed hole and anchoring on platform joist 18.3 webs; Screw rod 18.4 symmetries are positioned at the shaft both sides, set up steel pipe frame 18.5 and railing on the platform joist 18.3, and springboard 18.6 is tiled on the steel pipe frame; Railing is movable steelframe at last people's oral-lateral; Springboard 18.6 is installed at last people's oral-lateral and is covered folding cover plate 18.7, and the fixed axis 18.8 and the platform joist 18.3 of folding cover plate 18.7 parallel, away from the platform joist 18.3 inboard welded cover plate joists 18.9 of fixed axis one side.
Said supporting plate 18.2 is angle steel or steel plate.Said platform joist 18.3 is channel-section steel, i iron or H shaped steel.The steel pipe of said steel pipe frame 18.5 is framed bent steel pipe, a writing brush or scaffolding steel pipe.Said cover plate joist 18.9 is angle steel, channel-section steel, i iron, H shaped steel or square steel.Said cover plate joist 18.9 and 18.3 welding or the anchorings of platform joist.
Steel pipe frame is assembled at the construction field (site), winched to the node place with crane; During assembling folding cover plate 18.7 is opened, fixed with the railing of the rope made of hemp and steel pipe frame, the constructor makes progress to platform from the cat ladder of reserving; After job platform put in place, the constructor was fastening fixing with screw rod 18.4, puts down folding cover plate 18.7; Need move up like job platform, screw rod 18.4 is unclamped, can work winching to more eminence node,, open the movable steelframe of steel pipe frame side, move so that platform lifts by crane smoothly if the beam column tie point need be opened folding cover plate when moving up.The position of job platform is one meter above section steel beam generally.Need to have fastened white palm rope (diameter 20mm) when girder steel is installed and make the slide rope at beam-ends; So that girder steel installation in position; The colligation of girder steel two ends supplies safety rope and the tensioning of the diameter 10mm that the constructor uses well, walks on beam like need, then will safety belt be hung up properly on safety rope.Steel column must colligation be made for industry personnel steel cat ladder up and down well before lifting is installed on shaft.
The lifting appliance that the present invention uses, different because of each construction weight, need selected the crane gear of different lifting capacities for use according to weight, installation site and the crane radius of gyration of different component.
Claims (9)
1. oblique slide fastener trestle of mountain stream cross a river; Be that four Pin four stride structure; Comprise trestle steel frame and steel frame column; It is characterized in that: said trestle steel frame joins end to end by four sections, and a Pin trestle steel frame (1) is supported by steel frame column (5) with the part that is connected of the 2nd Pin trestle steel frame (2), and the 2nd Pin trestle steel frame (2) is supported by the long column of steelframe (13) with the part that is connected of the 3rd Pin trestle steel frame (3); The lower end of the one Pin trestle steel frame (1) is supported by low level fulcrum (6); The 2nd Pin trestle steel bracket (2) and the 3rd Pin trestle steel frame (3) are positioned at the top of riverbed (8), and the upper end of the 3rd Pin trestle steel frame (3) is supported in time high-order fulcrum (7), and the lower end of the 4th Pin trestle steel frame is supported by inferior high-order fulcrum (7); The upper end of the 4th Pin trestle steel frame is supported by highest order roller support (17); Said steel frame column (5) is an integral body, and the long column of steelframe (13) docks up and down by two to four sections and forms, and joint is welded with junction plate (10) and locating piece (11).
2. the hanging method of the oblique slide fastener trestle of the said mountain stream cross a river of claim 1 is characterized in that following steps are arranged:
Step 1, the periphery of low level fulcrum (6) is carried out bank protection, backfill and compacting, inferior high-order fulcrum foundation ditch periphery is removed the mud foreign material, change and fill out clay or stone and compacting;
Step 2, with the ground backfill of vehicle to run route and parking spot and compacting; Repair a temporary road that can make small crane reach the bottom, riverbed from inferior high-order fulcrum in the riverbed; It is flat that the bottom, riverbed of trestle steel frame below, steel frame column and trestle platform for lining installation site and riverbed periphery are carried out the backfill field, adopts bulldozer and excavator compacting then;
Step 3, the riverbed below the 2nd Pin trestle steel frame pad sets up trestle platform for lining (12) on the layer, the axis of said trestle platform for lining intersects with the line of two steel frame columns;
The basis of step 4, the short column (5) of construction steelframe and the long column of steelframe (13); Lift short column (5) of steelframe and the long column of steelframe (13) then; The installation that is installed as integral hoisting, the long column of steelframe (13) of the short column of steelframe (5) divide four sections prefabricated, the long column of steelframe (13) carries out the high-altitude and assembles in the fabricating yard;
Step 5, a Pin trestle steel frame (1) of prefabricated completion of processing is transported to the fabricating yard installs; One end of the one Pin trestle steel frame (1) is supported on the low level fulcrum (6); The other end is supported on the top of the short column of steelframe (5), carries out post beam-ends node and installs and weld;
Step 6, the 2nd Pin trestle steel frame (2) are made on the trestle platform for lining between two steel frame columns; The two ends of the 2nd Pin trestle steel frame (2) are supported on the top of short column (5) of steelframe and the long column of steelframe (13) respectively; Mobile crane (14) on the lifting employing time high-order fulcrum one side riverbank and mobile crane (15) two-shipper on the low level fulcrum one side riverbank lift, and carry out post beam-ends node behind the installation in position and install and weld;
Step 7, prefabricated the 3rd Pin trestle steel frame (3) that processes is transported to the installation site; Adopt mobile crane (14) integral hoisting on time high-order fulcrum one side riverbank; The lower end of the 3rd Pin trestle steel frame (3) is supported in the top of the long column of steelframe (13); The upper end is supported in time high-order fulcrum (7), carries out post beam-ends node behind the installation in position and installs and weld;
Step 8, with the highest order roller support (17) of tower crane (16) lifting time high-order fulcrum (7) oblique upper; The 4th Pin trestle steel frame (4) is transported to the installation site; Adopt mobile crane (14) integral hoisting on time high-order fulcrum one side riverbank; The lower end of the 4th Pin trestle steel frame (4) is supported in the top of time high-order fulcrum (7), and the lower end of the 4th Pin trestle steel frame (4) is supported on the highest order roller support (17);
Step 9, carry out bridge deck, steel ladder and the steel railing is installed.
3. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 2 is characterized in that: in the said step 4, and the basis of the construction short column of steelframe (5); After foundation construction finishes; Inspection suspension column built-in fitting is also revised built-in fitting top mark height, and stone bolt adds the adjustment nut, gets flitch or sleeper that the mobile crane kick is used ready; The short column of steelframe (5) adopts the direct hoisted in position of the whole unit of mobile crane (15) on the low level fulcrum one side riverbank; The installation deviation of member is controlled in the standard allowed band, and the bearing axis of trestle and embedded part axes align, and carries out stone bolt after absolute altitude adjustment is errorless again and fixes or weld.
4. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 2; It is characterized in that: in the said step 4, after the foundation construction of the long column of steelframe (13) finishes, the verticality and the capital absolute altitude of inspection suspension column built-in fitting and amending column; Need on member, to tie up the steel cat ladder before the member lifting; Mobile crane (14) on the lifting employing time high-order fulcrum one side riverbank is as main loop wheel machine tool unit segmental hoisting, and auxiliary scattered of tower crane (16) is had bad luck and installed, and the installation deviation of member is controlled in the standard allowed band; The bearing axis of trestle and embedded part axes align, and carry out stone bolt after absolute altitude adjustment is errorless again and fix or weld.
5. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 4 is characterized in that: in the said step 4, the long column of steelframe (13) adopts the mobile crane (14) on the lifting time high-order fulcrum one side riverbank; The suspension centre height should guarantee under the level that wire rope and the trestle angle that winds up is not less than 60 degree, and special-purpose colligation rope is adopted in the colligation of member, and the lifting wire rope is restricted with colligation through snap ring and connected; Work to winch to overhead the 300mm height and will have a break, each supporting leg of inspection mobile crane has or not sagging situation, if any sinking; Should put down member; Again with the leveling of crane supporting leg, lifting again again is after lifting component puts in place; The base plate axis of trestle is aligned with the axis that props up top of the trellis; Installation deviation is controlled in the standard allowed band, for the long column of steelframe (13) segmentation top overproof to add pading plate adjustment, after absolute altitude and axis are adjusted, bolton or electric welding are fixed.
6. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 5 is characterized in that: in the said step 4, the correction of the long column of steelframe (13): the long column of steelframe (13) multistage merogenesis is installed, and jackscrew is adopted in the correction of verticality.
7. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 2; It is characterized in that: the erection method of trestle platform for lining (12) does in the said step 3; Two short side directions at trestle platform for lining (12) are provided with earlier one group of supporting leg (12.3) separately; Two long side directions at platform are provided with supporting leg by trestle truss span below each cross-node then; Fixing elongated grade beam (12.1) below every group of supporting leg, said grade beam (12.1) is parallel with minor face, and length is greater than the bond length of platform; The spacing of two adjacent supporting legs is greater than the width of riverbed surface disposal ditches (12.6); In the bottom surface of grade beam (12.1), corresponding to the base plate (12.5) of the fixing area in the below of each supporting leg (12.3) greater than the supporting leg cross section, between grade beam (12.1) and adjacent grade beam, be connected stull (12.2), at last diagonal brace (12.4) is fixed between supporting leg (12.3) and the adjacent legs.
8. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 2; It is characterized in that: in the said step 4; The waist of the long column of steelframe (13) is installed bean column node job platform (18), is used for step 6, seven post beam-ends node is installed and welding.
9. the hanging method of the oblique slide fastener trestle of mountain stream cross a river according to claim 8; It is characterized in that: the erection method of said bean column node job platform (18) does; At the relative both sides welding of steel column (18.1) shaft two blocks of supporting plates (18.2), be close to the supporting plate (18.2) of shaft both sides and go up overlap joint two platform joists (18.3), punch on the web of platform joist (18.3); Two screw rods (18.4) are passed hole and anchoring on platform joist (18.3) web; Screw rod (18.4) symmetry is positioned at the shaft both sides, sets up steel pipe frame (18.5) and railing on the platform joist (18.3), and springboard (18.6) is tiled on the steel pipe frame; Railing is movable steelframe at last people's oral-lateral; Springboard (18.6) is installed at last people's oral-lateral and is covered folding cover plate (18.7), and the fixed axis (18.8) of folding cover plate (18.7) parallels with platform joist (18.3), away from the inboard welded cover plate joist of platform joist (18.3) (18.9) of fixed axis one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113808.1A CN102635061B (en) | 2012-04-18 | 2012-04-18 | Mountain stream river-crossing inclined zipper trestle and hoisting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113808.1A CN102635061B (en) | 2012-04-18 | 2012-04-18 | Mountain stream river-crossing inclined zipper trestle and hoisting method thereof |
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| CN102635061A true CN102635061A (en) | 2012-08-15 |
| CN102635061B CN102635061B (en) | 2014-05-07 |
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| CN201210113808.1A Expired - Fee Related CN102635061B (en) | 2012-04-18 | 2012-04-18 | Mountain stream river-crossing inclined zipper trestle and hoisting method thereof |
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| CN107217669A (en) * | 2017-04-01 | 2017-09-29 | 南京瑞迪建设科技有限公司 | Pile pulling device and its rapid movement method |
| CN107268453A (en) * | 2017-08-18 | 2017-10-20 | 山西太行建设开发有限公司 | The whole Pin double-machine lifting cranes combination roller support installation engineering method of oblique parallel-chord truss |
| CN115502600A (en) * | 2022-10-26 | 2022-12-23 | 沪东中华造船(集团)有限公司 | Method for assembling and welding inner plastic coated pipe web |
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| CN115502600A (en) * | 2022-10-26 | 2022-12-23 | 沪东中华造船(集团)有限公司 | Method for assembling and welding inner plastic coated pipe web |
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|---|---|
| CN102635061B (en) | 2014-05-07 |
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