CN104695624B - Processing technology for large-cross-section box column - Google Patents
Processing technology for large-cross-section box column Download PDFInfo
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- CN104695624B CN104695624B CN201510031758.6A CN201510031758A CN104695624B CN 104695624 B CN104695624 B CN 104695624B CN 201510031758 A CN201510031758 A CN 201510031758A CN 104695624 B CN104695624 B CN 104695624B
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Abstract
The invention relates to the technical field of building structures, and particularly relates to a processing technology for a large-cross-section box column, and the structures are gradually connected into a whole through part preparation, welding of an H-shaped girder, welding of the box column, welding of a base and thermal treatment after welding. The product is efficient and fast to prepare, so that the large-cross-section box column is high in bearing capacity and high in stability.
Description
Technical field：
The present invention relates to building structure technology field, more particularly to a kind of processing technology of heavy in section box column.
Background technology：
In recent years, with the development of China's economic construction, nigh-level synthesis are widely applied, wherein box
Post beam occupies very big proportion again in high-rise steel structure, and current box specification also can not meet construction in rolled section steel
Need, therefore, welding box-shaped post beam is used in a large number in various nigh-level synthesis.The manufacturing process of box-type member is than other
The making of component form is complicated, and quality requirement is high, and particularly the welding of box dividing plate is on the make often because of the system of welding position
About affect welding quality and progress.
The content of the invention：
Present invention aims to the deficiencies in the prior art, there is provided a kind of production efficient quick, high capacity,
The processing technology of the strong heavy in section box column of stability.
For achieving the above object, the present invention is employed the following technical solutions：A kind of heavy in section box column, including base plate, base plate
Centre is provided with box column, and box column outer rim is provided with cover plate, and cross-coupled some auxiliary in length and breadth are provided between cover plate and base plate
Strength plate and little strength plate, in the hole that auxiliary strength plate is cross-linked with little strength plate alignment pin is provided with, what the box column one pair of which claimed
Both sides are connected with main strength plate, and the both sides that box column another pair claims are connected with lid strength plate, and the box column includes connecting into four
The lateral frame board of side shape, is provided with cross post in box column, between cross post and lateral frame board internal partition is provided with.
Wherein, the cover plate includes the side cover plate for being connected to lid strength plate lower end and the inter panel being connected with main strength plate,
Side cover plate and inter panel offer the pin-and-hole with positioning pin connection.
Wherein, the outside between the side cover plate and base plate is provided with hush panel, sets between the cross post and lateral frame board
There are at least three layers internal partition, offer in the middle of internal partition and wear the location hole for connecing positioning pipe.
A kind of processing technology of heavy in section box column, comprises the following steps：
A, part prepare：According to construction drawing each parts is carried out successively setting-out, row plate, number material with line, cutting and
Planing operation；
B, welded H section steel beam：By three pieces of steel plate butt welding into H profile steel beam；
The welding of C, box column：By moulding bed by cross post and boundary frame area plate weld, weld with base plate afterwards, afterwards two
Side deckle board is welded with cross post with boundary frame area plate weld, afterwards by the internal partition of both sides and cross post and both sides lateral frame board
Connect, afterwards by upper end lateral frame board and cross post and two side frames and internal partition welding；
The welding of D, base：First carry out positioning to the main strength plate row in centre through box column bottom upper cover plate to assemble and weld
Connect, afterwards box column is carried out into 180 and stood up, the main strength plate of remaining twice of dorsal part is assembled, welded, afterwards by box column
The strength plate weld of other symmetrical both sides, then set pin sleeve is placed in into base plate upper end, afterwards inter panel and side cover plate are used into fixed
Position pin be fixed on the positioning, i.e., complete with main strength plate, box column welding, then by side cover plate middle part welding be connected with box column it is upper
Lid strength plate, afterwards in the corner location welding auxiliary strength plate of base, finally in base outer rim solder up plate；
Heat treatment after E, welding：Including heating and control, insulation and detection temperature, enhancing reaches the bearing capacity of steel beam column
And stability.
Wherein, the welding of the last side internal partition in the step C middle and upper part, liner plate is drawn to by pilot pin pipe to internal partition
Side is adjacent to, and electroslag welding position connection plate inside holds out against and complete after the lateral frame board of top tack welding, with top frame on the inside of internal partition
The electroslag welding connecting plate of plate junction is pre-aligned to be welded on internal partition, the connecting plate on the outside of it after internal partition positioning finish after again
Carry out tack welding.
The present invention has the beneficial effect that：The present invention between base plate and cover plate by being connected with auxiliary strength plate, little strength plate, positioning
Pin, is connected with by being connected with the main strength plate and upper lid strength plate and box column being connected with base plate and cover plate in box column side
Cross post and internal partition；After part preparation, welded H section steel beam, the welding of box column, the welding of base and welding
Heat treatment, gradually connects integral by above structure, such production efficient quick, can make the high capacity of the present invention,
Stability is strong.
Description of the drawings：
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the present invention.
Specific embodiment
Below with embodiment, the invention will be further described, is not the practical range limited to this present invention.
As depicted in figs. 1 and 2, a kind of heavy in section box column, including base plate 1, the base plate 1, connection other structures it
Auxiliary strength plate 2, little strength plate 3, the position line of the connection of alignment pin 4 are decorated with before, and box column, box column outer rim are provided with the middle of base plate 1
Cover plate is provided with, cross-coupled some auxiliary strength plate 2 and little strength plate 3 in length and breadth, auxiliary strength plate 2 are provided between cover plate and base plate 1
Alignment pin 4 is provided with the hole being cross-linked with little strength plate 3, the both sides that the box column one pair of which claims are connected with main strength plate 5, case
The both sides that type post another pair claims are connected with lid strength plate 6, and the box column includes the lateral frame board 7 of connection quadrangularly, box
Cross post 8 is provided with post, internal partition 9 is provided between cross post 8 and lateral frame board 7, the present invention by base plate 1 and cover plate it
Between be connected with auxiliary strength plate 2, little strength plate 3, alignment pin 4, by being connected with the master being connected with base plate 1 and cover plate in box column side
Cross post 8 and internal partition 9 are connected with strength plate 5 and upper lid strength plate 6 and box column, above structure one is gradually connected into into whole
Body, can so make the high capacity of the present invention, and stability is strong.
In the present embodiment, the cover plate includes being connected to the side cover plate 10 of the lower end of lid strength plate 6 and is connected with main strength plate 5
Inter panel 11, side cover plate 10 and inter panel 11 offer the pin-and-hole 12 being connected with alignment pin 4, and the present embodiment sets cover plate
The structure being made up of side cover plate 10 and inter panel 11 is set to, is so easy to welding processing, in addition, side cover plate 10 and inter panel
11 pin-and-holes 12 for opening up, positioning when side cover plate 10 and inter panel 11 can be easy to connect, three's connection is integral.
In the present embodiment, the outside between the side cover plate 10 and base plate 1 is provided with hush panel 13, and the hush panel 13 can be improved
The integral anti-shearing of the present invention.
In the present embodiment, at least three layers internal partition 9 are provided between the cross post 8 and lateral frame board 7, in the middle of internal partition 9
Offer and wear the location hole 14 for connecing positioning pipe, the internal partition 9 can be integrally connected with cross post 8 and lateral frame board 7, plus
Strong bearing capacity, and the location hole 14 of internal partition 9 is easy to the welding of internal partition 9 and cross post 8 and lateral frame board 7, the box
The cylinder of " H " type or other shapes is may also set up in post, as long as being easy to strengthen bearing capacity after welding with internal partition 9 and lateral frame board 7
.
A kind of processing technology of heavy in section box column, comprises the following steps：
A, part prepare：According to construction drawing each parts is carried out successively setting-out, row plate, number material with line, cutting and
Planing operation；Specially：1) according to the requirement of construction design drawing and construction technology, setting-out is carried out using computer, to determine
The accurate dimension of each parts；
2) to H type beams, the welding allowance for shrinkage of 2mm should be placed in the width of wing plate；Should in the width of web
2mm welding allowances for shrinkage are placed, in the length direction of component 30mm secondary operation surpluses should be placed；
3) to box column, 2mm welding allowances for shrinkage are placed in the width of component, in length direction end face should be also placed
Milling allowance 10mm.
4) by setting-out size, various angular templets and blanking model are made；
5) by setting-out size, and qualified long chi is checked using more than bis- grades measurement units of Jing.Draw part sketch, establishment
Numerical control program and establishment jacking figure, for blanking.
6). during row's plate, the length direction of steel plate should be along the main Impact direction of structure；
7). the spacing between parallel weld seam should be greater than 200mm；
8) should try one's best and avoid cross weld seam；
9) material should be confirmed before number material and technological requirement is familiar with, then according to typesetting figure, blanking work sheet and part sketch
Enter line number material；
10) the necessary straight, not damaged of the mother metal of number material and other defect, otherwise should first correct or reject；
11) datum line, center line and inspection control point should be indicated after ruling.The work of the class of chisel one must not be used during marking
Tool, a small amount of its depth of sample punch mark should be not more than 0.5mm, and any permanent line vestige should not be left on steel plate；
B, welded H section steel beam：By three pieces of steel plate butt welding into H profile steel beam；During concrete making：1st, the pretreatment of steel plate,
Blanking is cut
Need to carry out steel plate pretreatment before steel plate cutting cutting, the oxide layer of surface of steel plate of going out improves surface of steel plate
Compactness, it is ensured that welding quality.
2nd, steel plate docking
If the steel plate length of buying is not enough, steel plate jigsaw should be carried out.Steel plate jigsaw should be overall docking steel plate docking only to be permitted
Perhaps length direction docking.Steel plate splicing, carry out on platform to scooping out, need to clear up platform before splicing；To hinder
Debris, clout, code pin of splicing etc. are removed clean.The butting grooves size See Figure of steel plate, the docking of steel plate only allows length
Dock in direction.Using gantry automatic submerged arc welding or trolley type Lincoln weld.
3rd, H profile steel group is stood
Center line is marked on wing plate initially with draw point, the assembly line of web is marked again on the basis of center line（It is as follows
Figure）, be aligned assembly line carry out shaped steel group stand, group stands in and carried out on automatic assembling machine.
H profile steel group stands in be organized on import H profile steel production line and stands, and four hydraulic positioning systems hold out against the upper and lower of H profile steel component
Positioned on flange plate and web；Adjust the depth of parallelism of flange plate and the perpendicularity of wing plate and web and then fix；Fixed weldering
Connect using CO2 gas shielded arc weldings.
4th, H profile steel welding
H profile steel is welded on gate-type submerged arc welding machine and carries out, and needs to clear up weld seam before weldering；Welding sequence is taken diagonally
Welding（As shown）, welding procedure is by manufacturer's standard execution.
H profile steel is welded on H profile steel automatic assembly line carries out full-automatic submerged-arc welding section, and qualified H profile steel component is hung on
On ship shape moulding bed, fixed welding behind its welding position is adjusted, welding is taken and is symmetrically welded order welding
5th, H profile steel correction
Because the heat that welding is produced is difficult to discharge for the moment after four main weldering seam welding of H profile steel；But produce welding stress
Deformation, so being that the depth of parallelism for guaranteeing flange plate is required after Member Welding.Need the correction for carrying out H profile steel.Correct in H profile steel certainly
Correct on arbor press on dynamic production line.
6th, H profile steel drilling, end face processing
Drilling operation is carried out after H profile steel shaping, is drilled and is processed on import full-automatic three-dimensional numerical control drilling machine, it is ensured that pitch of holes
Meet design requirement；Due to engineering structure system high-rise steel structure, so end face processing is the important quality for ensureing steel construction docking
Factor.End face processing mainly carries out milling groove on face miller, it is ensured that the depth of parallelism of both ends of the surface.
7th, the assembling of H profile steel
1）Preparation of construction：
A. should confirm that part thickness and appearance and size have checked qualified during assembling parts, without cutting burr and breach,
And should check dash number, direction and size it is errorless after just can be assembled；
B. check numbering, specification of H profile steel body to be assembled etc., confirm local study for a second time courses one has flunked and bending deformation has been adjusted
Finish；
C. part must be removed first by the yellow rust of weldering position and groove both sides 50mm, slag, paint and moisture in assembling
Deng debris；The cleaning of the weld seam position of important component, should be polishing to that metallic luster is presented using sanding machine；
D. during welding procedure, it should be noted that during to T connector or banjo fixing butt jointing using gas shield welding or welding rod manual welding, should arrange
Run-on tab and end tab, run-on tab and end tab length should be greater than 50mm, and width is not less than 30mm, and thickness is not less than 6mm, weld seam
Drawing length should be not less than 25mm；
E. when component is in assembling, when need to set up interim stiffener because of the needs of element structure form, it should be noted that put more energy into
Plate not may be provided at the region of rubbing surface, and rubbing surface region does not allow the presence of solder joint.
2）The matching requirements of H profile steel beam and method：
Before the assembling of a.H shaped steel, the main body that should first confirm that H profile steel has detected qualified, local study for a second time courses one has flunked and bending deformation is equal
Standard requirement is met.Rejected part is forbidden for assembling, it is necessary to hand over former operation to repair qualified rear and can be assembled；
B. H profile steel body is placed on mounting plate；According to position dimension of each part on drawing, existed using slate pencil
Rule on steel column body, its position line includes center line, datum line and position line etc., and the position line of each part should be using double
Line is identified, positioning svelteness, accurately, it is to avoid cause dimensional discrepancy because lines are fuzzy；
C. part to be assembled（Such as bracket）, assembly welding first should be carried out to part according to its position in the structure,
Make its own group be welded on optimal welding position to complete, realize the effective control of part welding quality；
D. on mounting plate, rule, assembled by position of its part on steel column；
E. during the erection welding of H profile steel beam or H profile steel post, because the weld seam of part itself is to member body length
And width can have certain impact, for example, when the termination blanking of component is carried out, if need to consider, termination blanking is welded again after finishing
Connecting to neutral part, the then welding of parts can produce welding contracted quantity, under the influence of welding contracted quantity, the overall length and section of component
Shape can also produce different changes, therefore, during component assembly, should in advance consider shadow of the amount of contraction to part position
Ring, i.e., in part positioning marking, weld contraction surplus should be added to its location dimension.
8th, embroider at component ball blast
Structure manufacture completes the qualified rear ball blast that enters except processing is embroidered, and ball blast removes to embroider mainly takes the full-automatic ball blast of import eight
Except embroidery machine ball blast.
9th, component mark, storage
Component numbering telltale mark etc. is labeled in into assigned position by process stipulation,
Rod member should be noted that protection when depositing, lower floor's bolster wood, Mnltilayered structures note the deformation of member when stacking.
The welding of C, box column：By moulding bed by cross post and boundary frame area plate weld, weld with base plate afterwards, afterwards two
Side deckle board is welded with cross post with boundary frame area plate weld, afterwards by the internal partition of both sides and cross post and both sides lateral frame board
Connect, weld by upper end lateral frame board and with cross post and two side frames and internal partition afterwards；Specially：Moulding bed adopts H400*
200 double H-type steel superposition, is connected firmly, in H profile steel side bearing diagonal and ground stable connection between shaped steel with intermittent weld.
Cross post group founds tack welding：Reply solder side goes through before group is vertical, the debris such as oxide skin is eliminated, for T-shaped
The installation of steel should be assembled by drawing, and line uses scriber, and then ensures the degree of accuracy of assembling；Tack welding adopts CO2
Gas shielded arc welding, positions foot welding height and cannot be greater than designing the 2/3 of weld seam foot welding height；Tack weld length be 50mm, welding bead
Spacing is 250mm.Tack welding must not have the defects such as crackle, slag inclusion, overlap；Tack welding length is noted, to ensure sufficient intensity.
After the completion of crossed column assembling, component number is indicated at component web termination 300-500mm with white paint pen.
Bottom internal partition combination：During assembling internal partition correspondence is assembled on cross web by position line.Internal partition is welded
Order is to carry out to web outer from cross web infall.
After bottom internal partition is completed, the assembling of base plate is carried out to form soil font.Base plate be completed after i.e. interior
Dividing plate is welded with base plate.Welding sequence is to carry out to base plate outer with base plate intersection from web.
The soil font of steel column and the assembling of bottom sides deckle board：
First, by the platform level-off of assembling, in the cross post of soil font and box column base plate and steel bottom sides deckle board
On mark the two-way axis of post；
On horizontal moulding bed, after the completion of soil font combination, positioning assembling is carried out to bottom sides deckle board on moulding bed：During assembling
Base plate center line is respectively aligned to the post center line and cross post center line of standby box column side, is guaranteed with right angle board foot during positioning
Bottom sides deckle board is tested respectively with the perpendicularity of box column and cross post, and is confirmed using line pendant.
The assembling of bottom sides deckle board finishes Jing after the assay was approved, carries out the welding job of bottom sides deckle board and cross intercolumniation,
It is welded into soil font.
Soil font inside and the weld seam that the welding sequence of bottom sides deckle board is the cross post of first balanced welding and bottom sides deckle board,
Stretch out from cross post intersection.Then the weld seam of bottom sides deckle board and base plate is welded, from cross post and soil font bottom
Plate junction extends laterally welding, needs to be preheated before welding, and preheating temperature is 100～150 DEG C.
After the completion of soil font welding, two blocks of side plates are assembled into soil font it is U-shaped, and side box column centre
Together assembly is completed main strength plate.It is U-shaped be completed after the horizontal strength plate of cross is welded with side panel.
Welding sequence：The weld seam between side plate and bottom sides deckle board is first welded, followed by weldering side strength plate and bottom sides deckle board
Weld seam, finally welds the weld seam of cross post and side plate.
After the completion of U-shaped is assembled, welded with bottom sides deckle board, all internal partitions (cross post groove of top side
Dorsal part) assembled, welded with U-shaped side plate and cross post.
Welding sequence：The weld seam of internal partition and cross post is first welded, intersection expands laterally from cross；Internal partition is welded again
With the weld seam of side plate, expand to side end with side plate intersection from cross post and welded.
Treat the assembling that the main strength plate of top lateral frame board and side is carried out after the completion of the internal partition assembling of top side, welding.
Welding sequence：First top lateral frame board and the main strength plate of bottom sides deckle board and side and bottom sides after top lateral frame board is in place
Weld seam between deckle board and top lateral frame board is welded, and then carries out top lateral frame board and bottom sides deckle board and near first
Weld seam welding between internal partition.
Groove type：Top lateral frame board adds liner plate single welding with bottom sides deckle board junction for double V-groove；Cross post with
Top lateral frame board junction adds liner plate single welding for double V-groove.
Welding position need to be tied during welding to be preheated, preheating temperature is 100～150 DEG C.
Top lateral frame board carries out the cross post of the last side internal partition in top extending part laterally after being completed
With the welding of top lateral frame board to weld seam between internal partition together with lower, treat to carry out next group of top again after the completion of part weld seam welding
The assembling of internal partition (both sides), welding.Treat internal spider type post be soldered to down with top lateral frame board together with internal partition place outside
After the 200mm of side, the liner plate that the internal partition is connected with cross post and side plate is carried out tack welding, then by pipe it is (close
Fill afterwards and backing pin hole be set at internal partition) liner plate side is drawn to internal partition as pilot pin pipe it is adjacent to, and electroslag welding position inner side connects
Fishplate bar to hold out against and complete tack welding after the lateral frame board of top.Internal partition inner side is advance with the electroslag welding connecting plate of top lateral frame board junction
Positioning is welded on internal partition, and the connecting plate on the outside of it carries out again tack welding after internal partition positioning is finished.
Top lateral frame board treat after being completed internal spider type post be soldered to down with top lateral frame board together with internal partition be located
After the 200mm of place outside, by with pipe as pin pipe to carrying out near last group of internal partition of avris of bottom sides deckle board side
Positioning assembling：First liner plate is positioned before the assembling of top lateral frame board, is waited top lateral frame board with cross post (bottom sides deckle board
With first internal partition at bottom sides deckle boards) after the completion of welding, pipe is as pin pipe (at rear dress internal partition
Backing pin hole is set) installation site is imported the road internal partition by bottom sides deckle board ventilating opening (D100 holes), when internal partition is led
It is adjacent to when guiding to liner plate side, and electroslag welding position connection plate inside to hold out against and complete tack welding after the lateral frame board of top.Internal partition and lid
Between plate electroslag welding connection in side plate need it is pre-aligned be soldered it is complete, outside electroslag welding liner plate is to be positioned finish after positioned again
Weldering.
Internal partition inner side is pre-aligned with the electroslag welding connecting plate of top lateral frame board junction to be welded on internal partition, its outside
Connecting plate after internal partition positioning finish after carry out tack welding again.
The welding of internal other weld seams in addition to electroslag welding position is carried out after the internal partition positioning is finished, and then completes this
Weld seam between road internal partition and lower road internal partition between cross post and capping.Electroslag welding is finally adopted between internal partition and cover plate.
Last side internal partition assembling at bottom sides deckle board, three sides are soldered under Cheng Bingyu upper edge between one strength plate
The assembling of deckle board avris internal partition together with carrying out down after the completion of the welding of cross post weld seam：First internal partition liner plate (three sides)
Positioning, then by with pipe be used as pin pipe the internal partition is guided hold out against after carry out tack welding, treat and cover plate junction
Three face weld all arounds are carried out to internal partition after the completion of internal partition strength plate positioning on the outside of electroslag welding to connect, remained at internal partition and top lateral frame board
Electroslag welding outside welding at once between cross post and cover plate.
Multiple tracks internal partition repeats above-mentioned operation.
Internal partition welding sequence：The weld seam at cross post is first welded, is extended toward outside from cross intersection, then weld internal partition
Treat to be used again after the completion of other all welding jobs in box column with the weld seam between the weld seam of box column avris plate, with top lateral frame board
Electroslag welding welding.
Group is held after the completion of top internal partition whole assembling and cross post and the interpleural weld seam of box column
Several groups of portion internal partition is welded with the weld seam of cover plate junction with side plate junction and internal partition with electroslag welding.
Treat that all weld seam welding are completed in box column, i.e., carry out bottoming, filling and cosmetic welding to four main welds of box column.
The welding of D, base：First carry out positioning to the main strength plate row in centre through box column bottom upper cover plate to assemble and weld
Connect, afterwards box column is carried out into 180 and stood up, the main strength plate of remaining twice of dorsal part is assembled, welded, afterwards by box column
The strength plate weld of other symmetrical both sides, then set pin sleeve is placed in into base plate upper end, afterwards inter panel and side cover plate are used into fixed
Position pin be fixed on the positioning, i.e., complete with main strength plate, box column welding, then by side cover plate middle part welding be connected with box column it is upper
Lid strength plate, afterwards again the corner location welding of base aids in strength plate, finally in base outer rim solder up plate；Specially：Treat
All weld seams complete and start after the completion of the road main weldering seam welding of box column four installation of the main strength plate in post bottom in box column.
First carry out positioning to the big main strength plate row through box column bottom upper cover plate to assemble and weld, need to be to welding during welding
Position is preheated, and preheating temperature is 100～150 DEG C, and welding sequence spreads laterally from shaft with column base plate intersection.
Using K-type slope welding by both sides.After the main strength plate installation in the side, 180 are carried out to box column and is stood up, to dorsal part
The main strength plate of remaining twice is assembled, welded.The assembling and welding of lateral main strength plate are completed in the same manner.
Cover plate assembling before first with cover template (12 groups of alignment pins have been installed) be placed on the low plate of post, with guarantee top cover plate and
Column base plate hole position is on same plumb line.
Alignment pin is processed using the round steel pipe of Φ 121*6, and end stays 50mm to do backing pin, sells body outside diameter car
Into Φ 118, top end head is processed into 45 chamferings so that alignment pin is smoothly penetrated.
By being fixed on the positioning with alignment pin when inter panel is assembled, fix after finishing i.e. to cover plate and main strength plate, case
Type post completes to weld (need to be preheated during welding, 100～150 DEG C of preheating temperature).Complete in the same manner that side cover plate is installed
Welded after upper lid strength plate installation.After the completion of welding box column is carried out standing up and assemble another upper lateral part
Strength plate and welding complete.
Carry out and post after each block of main strength plate is in place from middle toward the remaining main strength plate of both sides installation successively on moulding bed
The weld all around (groove is K-type) of body, suspension column and cover plate, overturns to shaft carry out group to the auxiliary strength plate of dorsal part after 180 degree in the same manner
Dress, welding.
The assembling of little strength plate is carried out after main strength plate installation is in place, little strength plate assembling adopts shutout, back welding.
In view of little strength plate passage is more, it is scattered in each little box column, in line with reduction welding stress as far as possible, guarantees welding quality
Principle, and on the premise of accelerating processing progress, the region for intending the main strength plate in elder generation Dui You tri- roads is first assembled, and assembly welding is completed
Carry out the assembling of the little strength plate of avris again afterwards.
Hush panel assembling, welding
After the completion for the treatment of the little strength plate assembling in the side, welding, 180 degree is carried out to box column and is turned round, the little strength plate of twice to dorsal part
Assembled respectively, welded.
Little strength plate assembling takes the mode spread laterally from centre to carry out, and layering is completed to assemble and welded.Weld seam is taken
Single groove adds the technique that backing plate completes single face welding and double face shaping.
Hush panel assembling, welding
180 degree is carried out after the little strength plate installation in the side to box column to stand up, the installation of the little strength plate of dorsal part is completed in the same manner.Case
The all components of type post carry out the assembling of post bottom shearing-resistant member after being completed and upper and lower segmented column installs the assembling of connection otic placode.
Heat treatment after E, welding：Including heating and control, insulation and detection temperature, enhancing reaches the bearing capacity of steel beam column
And stability, weldering postheat temperature is 610 DEG C, and constant temperature time is 2.1h.Programming rate is not controlled below 300 DEG C during heating,
More than 300 DEG C programming rates are controlled in 80 DEG C/h.More than 300 DEG C cooling rates are controlled in 100 DEG C/h during cooling, less than 300 DEG C
Natural cooling.During insulation, the difference of highest and minimum temperature is no more than 65 DEG C in the thermal treatment zone.Furnace temperature must not be higher than when weldment is come out of the stove
300 DEG C, weldment should continue cooling in still air after coming out of the stove.
Wherein, the welding of the last side internal partition in the step C middle and upper part, liner plate is drawn to by pilot pin pipe to internal partition
Side is adjacent to, and electroslag welding position connection plate inside holds out against and complete after the lateral frame board of top tack welding, with top frame on the inside of internal partition
The electroslag welding connecting plate of plate junction is pre-aligned to be welded on internal partition, the connecting plate on the outside of it after internal partition positioning finish after again
Tack welding is carried out, the welding material and welding process requirement that positioning welding line is adopted should be identical with the requirement of formal weld seam, right
There is the component of preheating requirement, also must be preheated during tack welding.
2). the welding of positioning welding line should avoid starting, end and the corner's welding in weld seam, arc crater from filling up, sternly
Prohibit striking and blow-out on the mother metal beyond weld zone.
The Size of welds of tack welding not should be greater than the 2/3 of welding seam design size, and no more than 8mm, but no less than 4mm.
5). when positioning welding line there are the defects such as crackle, pore, slag inclusion, it is necessary to weld again after removing, such as finally carry out
During submerged-arc welding, arc crater, pore can be removed.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope,
Equivalence changes or modification that feature and principle are done, are included in the range of present patent application.
Claims (2)
1. a kind of processing technology of heavy in section box column, it is characterised in that comprise the following steps：
A, part prepare：Each parts are carried out successively with setting-out, row's plate, number material according to construction drawing and rule, cut and is planed
Processing；
B, welded H section steel beam：By three pieces of steel plate butt welding into H profile steel beam；
The welding of C, box column：By moulding bed by cross post and boundary frame area plate weld, weld with base plate afterwards, afterwards two sides
Deckle board and cross post and boundary frame area plate weld, afterwards by the internal partition of both sides and cross post and both sides frame plate weld, it
Afterwards by upper end lateral frame board and cross post and two side frames and internal partition welding；
The welding of D, base：First carry out positioning to the main strength plate row in centre through box column bottom upper cover plate to assemble and weld, it
Afterwards box column is carried out into 180 to stand up, the main strength plate of remaining twice of dorsal part is assembled, welded, it is afterwards that box column is right in addition
The strength plate weld of the both sides of title, then set pin sleeve is placed in into base plate upper end, inter panel and side cover plate are entered with alignment pin afterwards
Row positioning is fixed, i.e., welding, then the upper Gai Jing that the welding of side cover plate middle part is connected with box column are completed with main strength plate, box column
Plate, afterwards in the corner location welding auxiliary strength plate of base, finally in base outer rim solder up plate；
Heat treatment after E, welding：Including heating and control, insulation and temperature is detected, enhancing reaches the bearing capacity of steel beam column and steady
It is qualitative.
2. the processing technology of a kind of heavy in section box column according to claim 1, it is characterised in that：On in step C
The welding of the last side internal partition in portion, is drawn to liner plate side to internal partition and is adjacent to by pilot pin pipe, and electroslag welding position inner side connects
Fishplate bar holds out against and complete after the lateral frame board of top tack welding, and internal partition inner side is advance with the electroslag welding connecting plate of top lateral frame board junction
Positioning is welded on internal partition, and the connecting plate on the outside of it carries out again tack welding after internal partition positioning is finished.
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| CN105937264A (en) * | 2016-03-04 | 2016-09-14 | 上海绿地建设(集团)有限公司 | Construction process of removable special-shaped three-dimensional steel-frame structure |
| CN106760203A (en) * | 2016-12-30 | 2017-05-31 | 芜湖天航科技（集团）股份有限公司 | A kind of complicated Steel for Large Steel Column component and processing method |
| CN107717353A (en) * | 2017-10-26 | 2018-02-23 | 云南建投机械制造安装工程有限公司 | Box column, beam make engineering method |
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| CN112264767A (en) * | 2020-10-20 | 2021-01-26 | 河北远大钢构科技有限公司 | Manufacturing and processing technology of assembled steel structure |
| CN112502446A (en) * | 2020-11-03 | 2021-03-16 | 中国一冶集团有限公司 | Socket type center barrel temporary support and using method thereof |
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| CN113941796B (en) * | 2021-12-20 | 2022-03-08 | 四川明日宇航工业有限责任公司 | High-precision tailor-welding process for stainless steel box type structural part |
| CN116988569B (en) * | 2023-09-21 | 2023-12-08 | 中铁城建集团第一工程有限公司 | Box-type steel structure and manufacturing process thereof |
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