CN104695624A - Large-cross-section box column and processing technology thereof - Google Patents
Large-cross-section box column and processing technology thereof Download PDFInfo
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- CN104695624A CN104695624A CN201510031758.6A CN201510031758A CN104695624A CN 104695624 A CN104695624 A CN 104695624A CN 201510031758 A CN201510031758 A CN 201510031758A CN 104695624 A CN104695624 A CN 104695624A
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Abstract
The invention relates to the technical field of building structures, and particularly relates to a large-cross-section box column and a processing technology thereof. An auxiliary stiffening plate, a small stiffening plate and a positioning pin are connected between a bottom plate and a cover plate; a main stiffening plate and an upper cover stiffening plate are connected with the side surface of the box column; the main stiffening plate is connected with the bottom plate and the cover plate; a cross column and an inner partition plate are connected with the inside of the 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, particularly a kind of heavy in section box column and processing technology thereof.
background technology:
In recent years, along with the development of China's economic construction, nigh-level synthesis is widely applied, wherein box type pillar beam occupies again very large proportion in high-rise steel structure, and current box specification also can not meet the needs of construction in rolled section steel, therefore, welding box-shaped post beam is used in various nigh-level synthesis in a large number.The manufacturing process of box-type member is more complicated than the making of other component form, and quality requirement is high, and particularly the welding of box dividing plate on the make often affects welding quality and progress because of the restriction of welding position.
summary of the invention:
The object of the invention is to for the deficiencies in the prior art, a kind of production efficient quick be provided, bearing capacity is high, heavy in section box column that stability is strong and processing technology thereof.
For achieving the above object, the present invention is by the following technical solutions: a kind of heavy in section box column, comprise base plate, box column is provided with in the middle of base plate, box column outer rim is provided with cover plate, cross-coupled some auxiliary strength plates and little strength plate is in length and breadth provided with between cover plate and base plate, alignment pin is provided with in the hole that auxiliary strength plate and little strength plate are cross-linked, the both sides of a described box column wherein symmetry are connected with main strength plate, the both sides of the other symmetry of box column are connected with upper cover strength plate, described box column comprises the lateral frame board connecting into quadrangle, cross post is provided with in box column, internal partition is provided with between cross post and lateral frame board.
Wherein, described cover plate comprises the side cover plate being connected to upper cover strength plate lower end and the inter panel be connected with main strength plate, and side cover plate and inter panel all offer the pin-and-hole be connected with alignment pin.
Wherein, the outside between described side cover plate and base plate is provided with hush panel, is provided with at least three layers of internal partition between described cross post and lateral frame board, offers the locating hole of cross-under positioning pipe in the middle of internal partition.
A processing technology for heavy in section box column, comprises the following steps:
A, part prepare: according to working drawing, each component are carried out to setting-out, row's plate, number material and line successively, cut and planing operation;
B, welded H section steel beam: three block plate butt welding are connected into H profile steel beam;
The welding of C, box column: cross post is welded with base deckle board by moulding bed, weld with base plate afterwards, dual-side deckle board welds with base deckle board with cross post, is welded with cross post and dual-side deckle board by the internal partition of both sides afterwards afterwards, is welded by upper end lateral frame board afterwards with cross post and both sides frame and internal partition;
D, the welding of base: first assemble through centre capable the positioning of main strength plate of upper cover plate bottom box column and weld, afterwards box column is carried out 180o to stand up, the main strength plate of all the other twice of dorsal part is assembled, welding, afterwards by the strength plate welding of both sides symmetrical in addition for box column, again set pin sleeve is placed in base plate upper end, afterwards inter panel and side cover plate alignment pin are fixed on the positioning, namely with main strength plate, box column completes welding, the upper cover strength plate be connected with box column will be welded again in the middle part of side cover plate, afterwards again base the auxiliary strength plate of corner location welding, last at base outer rim solder up plate,
Heat treatment after E, welding: comprise heating and controlling, insulation and detect temperature, strengthening the bearing capacity and the stability that reach steel beam column.
Wherein, the welding of last side, described step C middle and upper part central dividing plate, be drawn to liner plate side by pilot pin pipe to dividing plate to be adjacent to, and electroslag welding position connection plate inside completes tacking after holding out against upper edge deckle board, be welded on dividing plate with the electroslag welding junction plate of upper edge deckle board junction is pre-aligned inside dividing plate, the junction plate outside it positions weldering after treating dividing plate location again.
Beneficial effect of the present invention is: the present invention by being connected with auxiliary strength plate, little strength plate, alignment pin between base plate and cover plate, is connected with cross post and internal partition by being connected with in box column side in the main strength plate and upper cover strength plate and box column that are connected with base plate and cover plate; By the heat treatment after part preparation, welded H section steel beam, the welding of box column, the welding of base and welding, successively connect in aggregates by above structure, such production efficient quick, bearing capacity of the present invention can be made high, and stability is strong.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is decomposition texture schematic diagram of the present invention.
Detailed description of the invention
With embodiment, the invention will be further described below, is not practical range of the present invention is limited to this.
As depicted in figs. 1 and 2, a kind of heavy in section box column, comprise base plate 1, described base plate 1, auxiliary strength plate 2 was decorated with before other structures of connection, little strength plate 3, the position line that alignment pin 4 connects, box column is provided with in the middle of base plate 1, box column outer rim is provided with cover plate, cross-coupled some auxiliary strength plates 2 and little strength plate 3 is in length and breadth provided with between cover plate and base plate 1, alignment pin 4 is provided with in the hole that auxiliary strength plate 2 and little strength plate 3 are cross-linked, the both sides of a described box column wherein symmetry are connected with main strength plate 5, the both sides of the other symmetry of box column are connected with upper cover strength plate 6, described box column comprises the lateral frame board 7 connecting into quadrangle, cross post 8 is provided with in box column, internal partition 9 is provided with between cross post 8 and lateral frame board 7, the present invention by being connected with auxiliary strength plate 2 between base plate 1 and cover plate, little strength plate 3, alignment pin 4, cross post 8 and internal partition 9 is connected with by being connected with in box column side in the main strength plate 5 and upper cover strength plate 6 and box column that are connected with base plate 1 and cover plate, above structure is successively connected in aggregates, bearing capacity of the present invention can be made so high, stability is strong.
In the present embodiment, described cover plate comprises the side cover plate 10 being connected to upper cover strength plate 6 lower end and the inter panel 11 be connected with main strength plate 5, side cover plate 10 and inter panel 11 all offer the pin-and-hole 12 be connected with alignment pin 4, the structure be made up of side cover plate 10 and inter panel 11 is arranged to by cover plate by the present embodiment, be convenient to welding processing like this, in addition, the pin-and-hole 12 that side cover plate 10 and inter panel 11 are all offered, can be convenient to location when side cover plate 10 is connected with inter panel 11, three connects in aggregates.
In the present embodiment, the outside between described side cover plate 10 and base plate 1 is provided with hush panel 13, and this hush panel 13 can improve integral anti-shearing of the present invention.
In the present embodiment, at least three layers of internal partition 9 are provided with between described cross post 8 and lateral frame board 7, the locating hole 14 of cross-under positioning pipe is offered in the middle of internal partition 9, described internal partition 9 can be integrally connected with cross post 8 and lateral frame board 7, strengthen bearing capacity, and the locating hole 14 of internal partition 9 is convenient to welding internal partition 9 and cross post 8 and lateral frame board 7, the cylinder of " H " type or other shapes also can be set in described box column, as long as be convenient to weld rear reinforcement bearing capacity with internal partition 9 and lateral frame board 7.
A processing technology for heavy in section box column, comprises the following steps:
A, part prepare: according to working drawing, each component are carried out to setting-out, row's plate, number material and line successively, cut and planing operation; Be specially: 1) according to the requirement of construction design drawing and construction technology, adopt computer to carry out setting-out, to determine the accurate dimension of each component;
2) to H type beam, the welding allowance for shrinkage of 2mm should be placed at the width of wing plate; 2mm should be placed at the width of web and weld allowance for shrinkage, 30mm secondary operations surplus should be placed at the length direction of component;
3) to box column, place 2mm at the width of component and weld allowance for shrinkage, also should place end face milling allowance 10mm at length direction.
4) by setting-out size, various angular templet and blanking model is made;
5) by setting-out size, and the long chi be up to the standards through the above measurement unit of secondary is adopted.Draw part sketch, numerical programming program and establishment jacking figure, for blanking.
6). during row's plate, the length direction of steel plate should along the main Impact direction of structure;
7). the spacing between parallel weld seam should be greater than 200mm;
8) cross weld seam should be avoided as far as possible;
9) material should be confirmed and be familiar with technological requirement before number material, then expect according to typesetting figure, blanking work sheet and the part sketch number of carrying out;
10) number the mother metal of material must straight, not damaged and other defect, otherwise should first correct or reject;
11) reference line, center line and inspection control point should be indicated after line.Must not use the instrument of chisel one class during marking, a small amount of its degree of depth of sample punch mark should be not more than 0.5mm, steel plate should not leave any permanent line vestige;
B, welded H section steel beam: three block plate butt welding are connected into H profile steel beam; Concrete make time: 1, steel plate pretreatment, blanking cutting
Need to carry out steel plate pretreatment before steel plate cutting cutting, go out the oxide layer of surface of steel plate, improve the compactness of surface of steel plate, ensure welding quality.
2, steel plate docking
If the steel plate length of buying is inadequate, steel plate jigsaw should be carried out.Steel plate jigsaw should be the docking of overall docking steel plate and only allows length direction docking.Steel plate splicing, to carry out on platform scooping out, needing before splicing to clear up platform; The foreign material, clout, code pin etc. that hinder splicing are removed clean.The butting grooves size See Figure of steel plate, the docking of steel plate only allows length direction to dock.Adopt gantry automatic submerged arc welding or trolley type Lincoln weld.
3, H profile steel group is stood
First adopting draw point to mark center line on wing plate, take center line as the assembly line (as figure below) that benchmark marks web again, and the group that aligning assembly line carries out shaped steel is stood, and group stands on automatic assembling machine carries out.
It is vertical that H profile steel group to stand on import H profile steel production line group, and four hydraulic positioning systems hold out against on the frange plate up and down of H profile steel component and web and position; The parallelism of frange plate and the verticality of wing plate and web is regulated then to fix; Fixing welding adopts CO2 gas shielded arc welding.
4, H profile steel welding
H profile steel is welded on gate-type submerged arc welding machine carries out, and needs butt welded seam to clear up before weldering; Welding sequence takes diagonal angle welding (as diagram), and welding procedure is pressed manufacturer's standard and performed.
H profile steel is welded on H profile steel automatic assembly line carries out full-automatic submerged arc welding joint, is hung on ship shape moulding bed by qualified H profile steel component, fixing welding after regulating its welding position, and welding is taked to be symmetrically welded order welding
5, H profile steel is corrected
The heat produced due to welding after H profile steel four main weld welding is difficult to release for the moment; But generation welding stress deformation, so for guaranteeing the parallelism requirement of frange plate after Member Welding.Need the rectification carrying out H profile steel.Correct on the arbor press on H profile steel automatic assembly line and correct.
6, H profile steel boring, end face processing
Carry out Drilling operation after H profile steel is shaping, hole and to process on import full-automatic three-dimensional numerical control drilling machine, guarantee that pitch of holes meets designing requirement; Due to engineering structures system high-rise steel structure, so end face processing is the important quality factor ensureing steel work docking.End face processing mainly carries out milling groove on face miller, guarantees the parallelism of both ends of the surface.
7, the assembling of H profile steel
1) preparation of construction:
A. should confirm during assembling parts that part thickness and appearance and size are up to the standards, without cutting burr and breach, and should check that dash number, direction and size are errorless just can assemble afterwards;
B. check the numbering, specification etc. of H profile steel body to be assembled, confirm local study for a second time courses one has flunked and bending to be out of shape equal adjusted complete;
C. part first must remove the foreign material such as the Huang rust of welded position and groove both sides 50mm, slag, paint and moisture when assembling; The cleaning at the weld seam position of important component, should use sanding machine to polish to presenting metallic luster;
D., during welding procedure, when should note adopting gas to protect weldering or welding rod hand welding to T connector or banjo fixing butt jointing, run-on tab and end tab should be set, run-on tab and end tab length should be greater than 50mm, width is not less than 30mm, and thickness is not less than 6mm, and weld seam draws length should be not less than 25mm;
E. when component is when assembling, when need set up interim stiffener because of the needs of element structure form, should notice that stiffener can not be arranged on the region of rubbing surface, rubbing surface region does not allow to there is solder joint.
2) matching requirements of H profile steel beam and method:
A.H shaped steel assembling before, first should confirm that the main body of H profile steel has detected qualified, local study for a second time courses one has flunked and bending distortion all meet standard-required.Forbid for assembling to rejected part, can assemble after the finishing of former operation must be handed over qualified;
B. H profile steel body is placed on mounting plate; According to the position dimension of each parts on drawing, utilize slate pencil to rule on steel column body, its position line comprises center line, reference line and the position line etc., and the position line of each parts should adopt two-wire to identify, locate svelteness, accurately, avoid causing dimensional errors because lines are fuzzy;
C. parts (as bracket etc.) to be assembled, according to its position in the structure, first should carry out assembly welding to parts, himself assembly welding is completed on the welding position of the best, realize effective control of parts welding quality;
D., on mounting plate, undertaken ruling, assembling by the position of its parts on steel column;
E. in the erection welding process of H profile steel beam or H profile steel post, because the weld seam of part self can exist certain impact to member body length and width, such as, when the termination blanking carrying out component, if welding part again after termination blanking need be considered, then the welding of component can produce welding contracted quantity, under the impact of welding contracted quantity, the overall length of component and section configuration also can produce different changes, therefore, in Assembly of the parts process, the impact of this amount of contraction on part position should be considered in advance, namely when part positioning marking, weld seam allowance for shrinkage should be added to its location dimension.
8, component ball blast place embroiders
Structure manufacture complete qualified after enter ball blast except embroidering processing, ball blast mainly takes import eight full-automatic ball blasts except embroidery machine ball blast except embroidering.
9, component mark, deposit
Component numbering telltale mark etc. is labeled in assigned position by process stipulation,
Should note protection when rod member is deposited, lower floor's bolster wood, notes the deformation of member when Mnltilayered structures is stacked.
The welding of C, box column: cross post is welded with base deckle board by moulding bed, weld with base plate afterwards, dual-side deckle board welds with base deckle board with cross post, is welded with cross post and dual-side deckle board by the internal partition of both sides afterwards afterwards, is welded by upper end lateral frame board afterwards with cross post and both sides frame and internal partition; Be specially: moulding bed adopts the double H-type steel superposition of H400*200, is connected firmly, at H profile steel side bearing diagonal and ground stable connection between shaped steel with intermittent weld.
Cross post group founds tacking: before group is vertical, reply solder side carefully checks, eliminate the foreign material such as oxide skin, the installation for T-steel should be assembled by drawing, and line uses scriber, and then ensures the degree of accuracy of assembling; Tacking adopts CO2 gas shielded arc welding, and location foot welding height must not be greater than 2/3 of design weld seam foot welding height; Tack weld length is 50mm, and welding bead spacing is 250mm.Tacking must not have the defect such as crackle, slag inclusion, overlap; Note tacking length, to ensure sufficient intensity.
After crossed column assembling completes, indicate component number with white painting pen at 300-500mm place, component web termination.
Bottom internal partition combination: by position line, dividing plate correspondence is assembled on cross web during assembling.Dividing plate welding sequence is for carry out from cross web infall to web outer.
After lower partition has been assembled, carry out the assembling of base plate to form soil font.Namely base plate welds dividing plate after having assembled with base plate.Welding sequence is for carry out from web and base plate intersection to base plate outer.
The soil font of steel column and the assembling of bottom sides deckle board:
First, by the platform level-off of assembling, the cross post of soil font and box column base plate and steel bottom sides deckle board mark the two-way axis of post;
On horizontal moulding bed, after soil font has combined, moulding bed positions assembling to bottom sides deckle board: during assembling, base plate center line is respectively to preparing the post center line of box column side and cross post center line, guarantee that the verticality of bottom sides deckle board and box column and cross post is tested respectively with right angle board foot during location, and utilize line pendant to confirm.
The assembling of bottom sides deckle board is complete through after the assay was approved, carries out the welding job of bottom sides deckle board and cross intercolumniation, is welded into soil font.
Soil font welding sequence that is inner and bottom sides deckle board is the weld seam of the cross post of first balanced welding and bottom sides deckle board, stretches out from cross post intersection.Then weld the weld seam of bottom sides deckle board and base plate, to extend laterally with soil font base plate junction from cross post and weld, need before welding to carry out preheating, preheat temperature is 100 ~ 150 DEG C.
After soil font has been welded, two blocks of side plates and soil font are assembled into U-shaped, and complete assembled together for the main strength plate in side box column centre.Namely the horizontal strength plate of cross is welded with side panel after U-shaped assembling completes.
Welding sequence: first weld the weld seam between side plate and bottom sides deckle board, more then weld the weld seam of side strength plate and bottom sides deckle board, finally weld the weld seam of cross post and side plate.
U-shaped is assembled with bottom sides deckle board, welded after, all internal partitions of side, top (cross post groove dorsal part) are carried out assembling, welding with U-shaped side plate and cross post.
Welding sequence: the weld seam first welding internal partition and cross post, from cross, intersection expands laterally; Weld the weld seam of internal partition and side plate again, expand from cross post and side plate intersection to side end and weld.
Until the assembling of side, top internal partition, welded after namely carry out the assembling of upper edge deckle board and the main strength plate of side.
Welding sequence: upper edge deckle board rear elder generation in place welds upper edge deckle board with the weld seam between the main strength plate of bottom sides deckle board and side and bottom sides deckle board and upper edge deckle board, then carries out upper edge deckle board and bottom sides deckle board and near the weld seam welding between first internal partition.
Groove type: upper edge deckle board and bottom sides deckle board junction are that double V-groove adds liner plate one side welding; Cross post and upper edge deckle board junction are that double V-groove adds liner plate one side welding.
Need tie welding position during welding and carry out preheating, preheat temperature is 100 ~ 150 DEG C.
Namely upper edge deckle board carries out cross post and the upper edge deckle board of last side, top central dividing plate extending part laterally to the welding of weld seam between dividing plate together with lower after having assembled, carry out the assembling of next group dividing plate (both sides) of top, welding after this part weld seam has welded again.Together with internal spider type post is soldered to down with upper edge deckle board outside the place of dividing plate place after 200mm, the liner plate that this dividing plate is connected with cross post and side plate is positioned weldering, again by pipe (backing pin hole is set near rear dress dividing plate place) as pilot pin pipe, liner plate side is drawn to dividing plate and is adjacent to, and electroslag welding position connection plate inside completes tacking after holding out against upper edge deckle board.Be welded on dividing plate with the electroslag welding junction plate of upper edge deckle board junction is pre-aligned inside dividing plate, the junction plate outside it positions weldering after treating dividing plate location again.
Upper edge deckle board assembled after together with internal spider type post is soldered to down with upper edge deckle board outside the place of dividing plate place after 200mm, by pipe as pin pipe near bottom sides deckle board side avris last group dividing plate position assembling: upper edge deckle board assembling before elder generation liner plate is positioned, after upper edge deckle board and cross post (bottom sides deckle board and the first dividing plate near bottom sides deckle board place) welded, pipe by bottom sides deckle board ventilation opening (D100 hole), this road dividing plate is imported installation site as pin pipe (arranging backing pin hole near rear dress dividing plate place), be adjacent to when dividing plate is drawn to liner plate side, and electroslag welding position connection plate inside completes tacking after holding out against upper edge deckle board.Between dividing plate with cover plate electroslag welding be connected in side plate need pre-alignedly be soldered complete, position weldering again after outside electroslag welding liner plate is to be positioned.
Be welded on dividing plate with the electroslag welding junction plate of upper edge deckle board junction is pre-aligned inside dividing plate, the junction plate outside it positions weldering after treating dividing plate location again.
Namely carry out the welding of inner other weld seams except electroslag welding position after treating this dividing plate location, and then complete the weld seam between this road dividing plate and lower road dividing plate between cross post and capping.Finally electroslag welding is adopted between dividing plate and cover plate.
Last side dividing plate assembling near bottom sides deckle board place, three side welds complete and with under together with between strength plate upper edge deckle board namely carry out after having welded with cross post weld seam under together with the assembling of avris dividing plate: dividing plate liner plate (three limits) is located by elder generation, again by pipe as pin pipe to this dividing plate guide hold out against after carry out tacking, after having located with cover plate junction electroslag welding outboard partition strength plate, namely carry out three weld all arounds to dividing plate connect, surplus dividing plate at once cross post and welding between cover plate outer with the electroslag welding at upper edge deckle board place.
Multiple tracks dividing plate repeats above-mentioned operation.
Internal partition welding sequence: the weld seam first welding cross post place, from cross, intersection extends toward outside, then welds the weld seam of internal partition and box column side plate, and the weld seam between upper edge deckle board uses electroslag welding welding until other all welding jobs in box column after completing again.
Top internal partition is all assembled, complete with cross post and the interpleural weld seam of box column after namely several groups, the bottom of having assembled dividing plate is welded with the weld seam electroslag welding of cover plate junction with side plate junction and dividing plate.
Treat that in box column, all weld seams have welded, namely bottoming, filling and cosmetic welding are carried out to box column four main welds.
D, the welding of base: first assemble through centre capable the positioning of main strength plate of upper cover plate bottom box column and weld, afterwards box column is carried out 180o to stand up, the main strength plate of all the other twice of dorsal part is assembled, welding, afterwards by the strength plate welding of both sides symmetrical in addition for box column, again set pin sleeve is placed in base plate upper end, afterwards inter panel and side cover plate alignment pin are fixed on the positioning, namely with main strength plate, box column completes welding, the upper cover strength plate be connected with box column will be welded again in the middle part of side cover plate, afterwards again base the auxiliary strength plate of corner location welding, last at base outer rim solder up plate, be specially: the installation starting main strength plate at the bottom of post after weld seams all in box column complete and box column four road main weld has welded.
First assemble through capable the positioning of large main strength plate of upper cover plate bottom box column and weld, need carry out preheating to welding position during welding, preheat temperature is 100 ~ 150 DEG C, and welding sequence spreads laterally from shaft and column base plate intersection.
Adopt K type slope double welding.After the main strength plate installation of this side, 180o is carried out to box column and stands up, the main strength plate of all the other twice of dorsal part is assembled, welded.In like manner complete assembling and the welding of the main strength plate of side direction.
First be placed on the low plate of post, to guarantee that top cover plate and position, column base plate hole are on same plumb line with cover template (having installed 12 groups of alignment pins) before cover plate assembling.
Alignment pin adopts the round steel pipe of Φ 121*6 to process, and end stays 50mm to do backing pin, and pin body outside diameter car becomes Φ 118, and top end head is processed into 45o chamfering so that alignment pin penetrates smoothly.
By being fixed on the positioning with alignment pin during inter panel assembling, namely cover plate being completed with main strength plate, box column after fixing and welding (need preheating be carried out during welding, preheat temperature 100 ~ 150 DEG C).In like manner complete and side cover plate is installed
Namely weld after the installation of upper cover strength plate.Weld rear standing up box column assemble opposite side top strength plate and welded.
Moulding bed installs the main strength plate of residue from middle toward both sides successively, namely carry out after each block main strength plate is in place and the weld all around of shaft, suspension column and cover plate (groove is K type), in like manner to after shaft upset 180 degree, the auxiliary strength plate of dorsal part is assembled, welded.
Namely carry out the assembling of little strength plate after main strength plate installation in position, little strength plate assembling adopts shutout, back welding.
In view of little strength plate passage is many, be scattered in each little box column, in line with reducing welding stress, guarantee the principle of welding quality as far as possible, and under accelerating the prerequisite of processing progress, the region of intending the main strength plate in first Dui You tri-road is first assembled, and carries out the assembling of the little strength plate of avris after assembly welding completes again.
Hush panel assembling, welding
After the little strength plate assembling in this side, having welded, 180 degree are carried out to box column and has turned round, the little strength plate of the twice of dorsal part is assembled respectively, welded.
Little strength plate assembling takes the mode spread laterally from centre to carry out, and layering completes assembling and welding.Weld seam take single groove to add technique that backing plate completes single face welding and double face shaping.
Hush panel assembling, welding
Carry out 180 degree to box column after the little strength plate installation of this side to stand up, in like manner complete the installation of the little strength plate of dorsal part.Namely the assembling and the upper and lower segmented column that carry out shearing-resistant member at the bottom of post after all component installaiton of box column complete install the assembling connecting otic placode.
Heat treatment after E, welding: comprise heating and controlling, insulation and detect temperature, strengthening the bearing capacity and the stability that reach steel beam column, weldering postheat temperature is 610 DEG C, and constant temperature time is 2.1h.Below 300 DEG C, do not control programming rate during heating, more than 300 DEG C, programming rate controls at 80 DEG C/h.During cooling, more than 300 DEG C cooling rates control at 100 DEG C/h, and less than 300 DEG C cool naturally.During insulation, in the thermal treatment zone, the highest difference with minimum temperature is no more than 65 DEG C.When weldment is come out of the stove, furnace temperature must not higher than 300 DEG C, and after coming out of the stove, weldment should continue cooling in still air.
Wherein, the welding of last side, described step C middle and upper part central dividing plate, be drawn to liner plate side by pilot pin pipe to dividing plate to be adjacent to, and electroslag welding position connection plate inside completes tacking after holding out against upper edge deckle board, be welded on dividing plate with the electroslag welding junction plate of upper edge deckle board junction is pre-aligned inside dividing plate, junction plate outside it positions weldering after treating dividing plate location again, the welding material that tacking weld seam adopts and welding process requirement should be identical with the requirement of formal weld seam, to the component having preheating requirement, during tacking, also preheating must be carried out.
2). the welding of tacking weld seam should avoid weld seam initial, terminate and corner's welding, arc crater should fill up, striking and blow-out on the mother metal forbidding beyond weld zone.
The Size of welds of tacking should not be greater than 2/3 of welding seam design size, and is not more than 8mm, but should not be less than 4mm.
5). when tacking weld seam has defects such as crackle, pore, slag inclusion, again weld after must removing, during as finally carried out submerged arc welding, arc crater, pore can be removed.
The above is only better embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.
Claims (5)
1. a heavy in section box column, it is characterized in that: comprise base plate, box column is provided with in the middle of base plate, box column outer rim is provided with cover plate, cross-coupled some auxiliary strength plates and little strength plate is in length and breadth provided with between cover plate and base plate, alignment pin is provided with in the hole that auxiliary strength plate and little strength plate are cross-linked, the both sides of a described box column wherein symmetry are connected with main strength plate, the both sides of the other symmetry of box column are connected with upper cover strength plate, described box column comprises the lateral frame board connecting into quadrangle, be provided with cross post in box column, between cross post and lateral frame board, be provided with internal partition.
2. a kind of heavy in section according to claim 1 box column, is characterized in that: described cover plate comprises the side cover plate being connected to upper cover strength plate lower end and the inter panel be connected with main strength plate, and side cover plate and inter panel all offer the pin-and-hole be connected with alignment pin.
3. a kind of heavy in section according to claim 2 box column, it is characterized in that: the outside between described side cover plate and base plate is provided with hush panel, be provided with at least three layers of internal partition between described cross post and lateral frame board, in the middle of internal partition, offer the locating hole of cross-under positioning pipe.
4. a processing technology for heavy in section box column, is characterized in that, comprises the following steps:
A, part prepare: according to working drawing, each component are carried out to setting-out, row's plate, number material and line successively, cut and planing operation;
B, welded H section steel beam: three block plate butt welding are connected into H profile steel beam;
The welding of C, box column: cross post is welded with base deckle board by moulding bed, weld with base plate afterwards, dual-side deckle board welds with base deckle board with cross post, is welded with cross post and dual-side deckle board by the internal partition of both sides afterwards afterwards, is welded by upper end lateral frame board afterwards with cross post and both sides frame and internal partition;
D, the welding of base: first assemble through centre capable the positioning of main strength plate of upper cover plate bottom box column and weld, afterwards box column is carried out 180o to stand up, the main strength plate of all the other twice of dorsal part is assembled, welding, afterwards by the strength plate welding of both sides symmetrical in addition for box column, again set pin sleeve is placed in base plate upper end, afterwards inter panel and side cover plate alignment pin are fixed on the positioning, namely with main strength plate, box column completes welding, the upper cover strength plate be connected with box column will be welded again in the middle part of side cover plate, afterwards again base the auxiliary strength plate of corner location welding, last at base outer rim solder up plate,
Heat treatment after E, welding: comprise heating and controlling, insulation and detect temperature, strengthening the bearing capacity and the stability that reach steel beam column.
5. the processing technology of a kind of heavy in section according to claim 2 box column, it is characterized in that: the welding of last side, described step C middle and upper part central dividing plate, be drawn to liner plate side by pilot pin pipe to dividing plate to be adjacent to, and electroslag welding position connection plate inside completes tacking after holding out against upper edge deckle board, be welded on dividing plate with the electroslag welding junction plate of upper edge deckle board junction is pre-aligned inside dividing plate, the junction plate outside it positions weldering after treating dividing plate location again.
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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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| 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 |
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| WO2022142767A1 (en) * | 2020-12-30 | 2022-07-07 | 江苏沪宁钢机股份有限公司 | Nested box body conversion node and manufacturing method therefor |
| CN113941796A (en) * | 2021-12-20 | 2022-01-18 | 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 |
| CN116988569A (en) * | 2023-09-21 | 2023-11-03 | 中铁城建集团第一工程有限公司 | Box-type steel structure and manufacturing process thereof |
| 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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