CN103696368B - A kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple - Google Patents
A kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple Download PDFInfo
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- CN103696368B CN103696368B CN201310348240.6A CN201310348240A CN103696368B CN 103696368 B CN103696368 B CN 103696368B CN 201310348240 A CN201310348240 A CN 201310348240A CN 103696368 B CN103696368 B CN 103696368B
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Abstract
The invention discloses a kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple, comprise girder, adjustable setting, column, board-like connection column cap, diagonal member, adjustable setting is formed by the first pinned connection by top and the bottom; The bottom of adjustable setting is connected by intermittent weld with the middle part of girder, the lower end of the affixed column in top of adjustable setting, the upper end of column is bolted column cap gusset piece, the both sides of column cap gusset piece are respectively by the second pinned connection diagonal member, the symmetrical laying of diagonal member of both sides, the 3rd pinned connection is passed through in one end of girder in the lower end of diagonal member.Cantilever construction reassembling type triangle hanging basket load-bearing main couple of the present invention, it utilizes shaped steel characteristic processing and fabricating and assembled, both Hanging Basket deadweight can have been alleviated, also counterweight is not needed, the number of components is few simultaneously, is convenient to install, transport, and ensure that the result of use of Hanging Basket, substantially increase the utilization rate of component simultaneously, additionally reduce the expense such as equipment making, transport.
Description
Technical field
The invention belongs to bridge construction load-carrying members technical field, be specifically related to a kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple.
Background technology
Cantilever construction Hanging Basket is parallel truss at first, and along with the optimization of cradle structure design and the development of material industry, Types of Cradles variation, structure is more and more light-dutyer, stressed more and more reasonable.Hanging Basket is mainly divided into parallel truss Hanging Basket, bowstring type Hanging Basket, stayed-cable hanging basket, Diamond-Shape Form Traveler, trigonometric decomposition.
Parallel truss Hanging Basket, due to from great, does not generally adopt.Triangular composite beam Hanging Basket is comparatively large due to ballast, has a definite limitation during application.Bowstring type Hanging Basket is because rod member quantity is many, fabrication and installation are more loaded down with trivial details and easily lose, and monitoring of tools difficulty is large.Diamond-Shape Form Traveler has that structure is simple, reasonable stress and the feature such as once to move into place, and apply comparatively general at present, but its shortcoming is long distance transportation and inconvenience thereof in construction.Slip stayed-cable hanging basket, owing to having concurrently from heavy and light with without balance weight, is one of the lightest domestic Hanging Basket, but perfect not, the oblique cable tensios control of level braking requires higher.
Summary of the invention
In order to solve prior art above shortcomings, the present invention proposes a kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple, it utilizes shaped steel characteristic processing and fabricating and assembled, both can alleviate Hanging Basket deadweight, and also not need counterweight, the number of components is few simultaneously, be convenient to install, transport, ensure that the result of use of Hanging Basket, substantially increase the utilization rate of component simultaneously, additionally reduce the expense such as equipment making, transport.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple, comprise girder (1), adjustable setting (2), column (3), board-like connection column cap (4), diagonal member, adjustable setting (2) is formed by connecting by the first bearing pin (8) by top and the bottom; The bottom of adjustable setting (2) is connected by intermittent weld with the middle part of girder (1), the lower end on the affixed column in the top (3) of adjustable setting (2), the upper end of column (3) is bolted column cap gusset piece (4), the both sides of column cap gusset piece (4) connect diagonal member respectively by the second bearing pin (10), the symmetrical laying of diagonal member of both sides, the lower end of diagonal member is connected to one end of girder (1) by the 3rd bearing pin (9).
Preferably, girder (1) comprises two i iron be arranged in parallel (11), and i iron (11) is welded with stiffener (13); I iron (11) and diagonal member junction are welded with bearing pin and strengthen pasting board (15); Weld reinforced company's fishplate bar (14) between two i iron (11), and weld several piece batten plate (12) between the top and the bottom, both sides of two i iron (11).
The girder (1) of two i iron spellings, according to stressed selection i iron model, parallel placement, according to steel band spacing, determine spacing between i iron, inner interval welds stiffening diaphragm, unjointed beam is welded into, greatly the anti-bending strength of stiffening girder down through 20mm steel batten plate.
Preferably, diagonal member forms by bearing pin (10) is connected successively by three sections.
Preferred further, every section of diagonal member comprises two steel bands, and the two ends of steel band all have pinned connection hole, and is welded with bearing pin reinforcement pasting board (52) in the outside of steel band.Diagonal member adopts 16Mn steel steel band, and is formed by steel pin axle (8,9,10) spelling.Tension 16Mn steel steel band (5,6,7) is Hanging Basket oblique drawbar, and a tension stress, makes full use of strip material characteristic, is arranged symmetrically in column both sides, substantially increases the anti-bending strength of girder (1).16Mn steel steel band has the characteristic of high strength tension, and namely steel band can only tension, can not pressurized, and the A3 steel that strength ratio is conventional is simultaneously high.Diagonal member and column (3), by Bolt consolidation, form post cap structure.
Preferably, the top of adjustable setting (2) comprises a top board (23), on top board (23) vertical welding several piece parallel and leave spacing arrangement the first stiffener (21), in lateral surface each vertical welding second stiffener (22) of both sides stiffener (21), the second stiffener (22) vertical welding is on top board (23); Vertical welding otic placode (26) and the 3rd stiffener (24) under top board (23), the 3rd stiffener (24) and otic placode (26) also vertical welding.
Preferred further, the bottom of adjustable setting (2) comprises a base plate (29), be affixed with steel plate (20) and be connected by intermittent weld under base plate (29), vertical welding otic placode (27) and several piece the 4th stiffener (28) on base plate (29), several piece the 4th stiffener (28) vertical welding is in the both sides of otic placode (27).
Further preferred, the two sides of top otic placode (26), bottom otic placode (27) are all welded bearing pin and are strengthened pasting board (25); Top otic placode (26) is connected by bearing pin (8) with bottom otic placode (27).
Hinged adjustable setting (2) makes girder (1) and column (3) be finely tuned column drift angle and ensured by hinged the playing of bearing pin (8) uniformity that steel band is stressed, solve the problem that fine setting plane of constraint stress is concentrated, add steel plate by base simultaneously and pre-jacking force is applied to steel band, enhance the anti-bending strength of girder.
Preferably, column (3) comprises two channel-section steels (31), and the upper end of two channel-section steels (31) all has several bolt hole, and steel plate (34) is strengthened in welding in bolt hole position; The notch of two channel-section steels (31) relatively and adjust the relative spacing of two channel-section steels (31), welds polylith batten plate (32) between the both sides of two channel-section steels (31).The column (3) of relative channel-section steel spelling, adopts relative channel-section steel to be welded into square sectional cylinder by 20mm batten plate, and top, bottom arrange interior reinforcement steel plate and ensure cylinder only by axial pressure, provide lateral stability to connect simultaneously, strengthen the stressed overall performance of Hanging Basket.
Preferred further, diaphragm (33) is strengthened in the inner end positions welding of offering bolt hole near sites in channel-section steel (31).
Preferably, column cap gusset piece (4) comprises two pieces of junction plates (41), and junction plate (41) has two pinned connection holes, and near pinned connection hole, bearing pin reinforcement pasting board (42) is all welded in the both sides of position.Board-like connection column cap (4), according to mechanics distribution principle (Pythagorean theorem), column and steel band angle control at 51 °, and column bilateral symmetry is arranged, carry out consolidation by Bolt, ensure the vertical discrete even completely cross section pressure transmission column (3) of tension 16Mn steel steel band (5).
The present invention makes full use of the mechanical characteristic of shaped steel, the position of pressurized, tension and bending resistance adopts channel-section steel, steel band and i iron shaped steel, between each component, connection adopts pin joint and bolt, assembled, convenient disassembly, be conducive to remote transport, thus substantially increase the turnover utilization rate of each component, reach suspending technology index simultaneously, conduct oneself with dignity light-duty, without counterweight, make full use of vertical prestressing control topple and straight skidding.
The present invention compared with prior art advantage is: the form of structure that this cantilever construction reassembling type triangle hanging basket changes load-bearing main couple adopts reassembling type.According to stress and the material behavior of each parts of main couple, choose best of breed, give full play to each construction material performance; Be designed to detachable combined structure, its structure is simple, processes, assembled and transport is very convenient, and by applying reverse bending moment in advance, substantially increase hanging basket main truss holistic resistant behavior.
For better solving the problem that column Root Stress is concentrated and simplified pre-add recurvation square, carrying out component girder (1) and being optimized for hinged adjustable setting (2) hinge with column (3).Pre-add recurvation square is a bit applied to control instead by column (3) jacking by multiple spot applying in the past, girder (1) is passed to by synchronous steel belt, improve the overall anti-bending strength of main couple, technique is simply controlled, pre-add recurvation square and construction Deformation process simultaneously, by the bearing pin of articulated base (2), eliminates column root deformation stress, be delivered to both sides steel band and pass to girder again, ensure that main couple uniform force is synchronous.
For giving full play to column and girder section steel material performance, carry out the stressed progress of prior art capital single-point according to mechanics Pythagorean theorem and be optimized for column and steel band angle 51 °, be arranged symmetrically in column both sides, by Bolt consolidation, form post cap structure, ensure the full section pressurized of column, greatly play column axial compression resistance performance; For outstanding i shaped steel girder material behavior, cancel the direct pin joint of transition connecting plate steel band on shape steel web, not only reduce work difficulty, and stress deformation process is directly distributed on girder by bearing pin adjustment in time, avoids girder junction plate stress to accumulate.
According to properties of materials, short and small structure stiffness by itself is large, in use, deposit and transportation and flexible, oblique pull steel band is (5), (6), (7) three sections of combinations by elongated structure optimization in the past, is easy to contraposition, and be short pin shaft pin joint, bearing pin by shearing, gives full play to bearing pin shear behavior near symmetry, and the distribution of stressed displacement process power simultaneously slows down substep and carries out, ensure that integral planar uniform force is synchronous, avoiding impacting displacement affects construction quality and safety; Pin joint nut loosens and is easy to adjustment, does not participate in main couple plane by Force system, ensures the harmony that main couple plane is stressed in use procedure all the time.
The present invention can according to bridge structure or stressed difference, by changing placement members or reconfiguring, give full play to main truss cradle frame member functional performance, value is high, both material maximum using rate can have been obtained, whole hanging basket main truss need not be changed again or process more multi-part, material and labour cost can be saved.
The present invention is widely used in the bearing equipment of cantilever construction construction, according to heteroid bridge Reasonable pair, can reach the optimum efficiency of onsite application.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of cantilever construction reassembling type triangle hanging basket load-bearing main couple of the present invention.
Fig. 2 is the side-looking structure chart of Fig. 1.
Fig. 3 a, 3b are respectively side-looking, the plan structure schematic diagram of the girder of two i iron spellings.
The master that Fig. 4 a, 4b are respectively hinged adjustable setting looks, side-looking structural representation.
Fig. 5 a is the pillar construction schematic diagram of relative channel-section steel spelling.
Fig. 5 b is Fig. 5 a right side view.
The master that Fig. 6 a, 6b are respectively column cap gusset piece looks, side-looking structural representation.
The master that Fig. 7 a, 7b are respectively top tension 16Mn steel steel band (5) looks, side-looking structural representation.
The master that Fig. 8 a, 8b are respectively middle part tension 16Mn steel steel band (6) looks, side-looking structural representation.
The master that Fig. 9 a, 9b are respectively lower tension 16Mn steel steel band (7) looks, side-looking structural representation.
In diagram, 1-girder; 2-articulated base; 3-column; 4-column cap joint cover; 5-top steel band; Steel band in the middle part of 6-; Steel band bottom 7-; 8-column articulated base bearing pin; Bearing pin bottom 9-between steel band and girder; Bearing pin between 10-steel band and between top steel band and column cap joint cover.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.
See Fig. 1,2, the present embodiment cantilever construction reassembling type trigonometric decomposition load-bearing main couple, comprise the girder 1 of two i iron spellings, the column 3 of hinged adjustable setting 2, relatively channel-section steel spelling, board-like connection column cap 4, tension 16Mn steel steel band spelling front and back diagonal member 5,6, the single diagonal member in the every side of 7(is made up of 2 No. 5 steel bands, 1 No. 6 steel band and 2 No. 7 steel bands, wherein, the specification of No. 6 steel bands is generally 200mm × 21mm, and the specification of 5, No. 7 steel bands is generally 200mm × 12mm), cut pressure-bearing No. 45 steel pin axles 8,9,10.
As shown in Fig. 3 a, 3b, girder 1 comprises two i iron be arranged in parallel 11, i iron 11 first welds stiffener 13(and welds within the scope of the stressed concentration zones in the two ends of i iron 11 and 1 meter, middle part, stiffener 13 can change girder section performance), pasting board 15 is strengthened again in two ends welding bearing pin, according to steel band spacing, article two, weld reinforced company's fishplate bar 14 respectively between the middle part of i iron 11 and two ends, between the top and the bottom, both sides of last two i iron 11, the every block batten plate 12 of each welding several piece batten plate 12(welds with two i iron 11).
As shown in Fig. 4 a, 4b, hinged adjustable setting 2 is assembled by bearing pin 8 by upper and lower two parts, on the top board 23 of upper part vertical welding several piece parallel and leave spacing arrangement stiffener 21, again in each vertical welding stiffener 22 of lateral surface of both sides stiffener 21, stiffener 22 vertical welding is on top board 23.Vertical welding otic placode 26 and stiffener 24 under top board 23, stiffener 24 and otic placode 26 also vertical welding.Be affixed with steel plate 20 under the base plate 29 of lower part and weld, vertical welding otic placode 27 and several piece stiffener 28 on base plate 29, several piece stiffener 28 vertical welding is in the both sides of otic placode 27.The two sides of otic placode 26,27 are all welded bearing pin and are strengthened pasting board 25.Upper ear plate 26 is connected by bearing pin 8 with lower ear plate 27.
As shown in Fig. 5 a, 5b, column 3 comprises two channel-section steels 31.First by two channel-section steels 31 back-to-back and drill through several bolt hole, the steel plate 34 of wielding neck capital bolt hole position reinforcement steel plate 34(and channel-section steel 31 corresponding aperture position is positioned at the inner side of channel-section steel 31 respectively again), by the notch of two channel-section steels 31 relatively and adjust the relative spacing of two channel-section steels 31, have inner end positions welding reinforcement diaphragm 33 near bolt hole in channel-section steel 31 is aforementioned, finally between the both sides of two channel-section steels 31, weld polylith batten plate 32.
As shown in Fig. 6 a, 6b, column cap gusset piece 4 comprises two pieces of junction plates 41, and junction plate 41 has two pinned connection holes.Drill through the bolt hole group (diameter of bolt hole is generally φ 26mm) of junction plate 41 according to the mould of column 3 top bolt holes group, then bearing pin reinforcement pasting board 42 is all welded in both sides, position near pinned connection hole.
As shown in Fig. 7 a, 7b, diagonal member 5 comprises two steel bands 51, and the two ends of steel band 51 have pinned connection hole, and near it, each welding in (steel band 51) outside bearing pin strengthens pasting board 52.
As shown in Fig. 8 a, 8b, diagonal member 6 comprises two steel bands 61, and the two ends of steel band 61 have pinned connection hole, and near it, each welding in (steel band 61) outside bearing pin strengthens pasting board 62.
As shown in Fig. 9 a, 9b, diagonal member 7 comprises two steel bands 71, and the two ends of steel band 71 have pinned connection hole, and near it, (steel band 71) outside is welded with bearing pin reinforcement pasting board 72,73 respectively.
The middle part of girder 1 is connected (base plate 29 is all connected with two i iron 11) by spot welding with the base plate 29 of base 2.23 lower ends of welding column 3 at the bottom of the top of base 2, the upper end bolt holes that column 3 upper end bolt hole portion is bolted column cap gusset piece 4(two channel-section steel 31 connects one piece of junction plate 41 respectively by bolt).The both sides of column cap gusset piece 4 connect diagonal member 5(two gusset piece 41 respectively by bearing pin 10 and connect a steel band 51 respectively by a bearing pin 10), the lower end of diagonal member 5 connects diagonal member 6(two steel band 51 by another bearing pin 10 and connects a steel band 61 respectively), the lower end of diagonal member 6 connects diagonal member 7(two steel band 61 by the 3rd bearing pin 10 and connects a steel band 71 respectively), article three, diagonal member is straight line shape, the lower end of diagonal member 7 is connected to one end (two steel bands 71 are connected to corresponding i iron 11 respectively by a bearing pin 9 and are welded with bearing pin reinforcement pasting board 15 place) of girder 1 by bearing pin 9.Three diagonal members of girder 1, both sides and the gusset piece 4 at top form isoceles triangle shape.
Assembled process: first generally adopt 2I45b at two i iron 11() spelling girder 1 in the middle part of spot welding hinged adjustable setting 2(bearing pin 8 diameter generally adopt φ 100mm).The column cap gusset piece 4 of mounting plate type to relative channel-section steel 31(generally adopt 2 32b becomes ［ ］ shape) column 3 top of spelling, adopt bolt (general adopt M24 bolt).Again the top board of the bottom of column 3 with base 2 is welded, after weld stiffener 21,22 successively.Successively steel band 51,61,71 is installed, marketing of going forward side by side connects (bearing pin 9,10 diameter generally adopts φ 70mm, φ 60mm respectively), the top of steel band 51 is connected by bearing pin 10 with column cap gusset piece 4, and the bottom of steel band 71 is connected by bearing pin 9 with one end of corresponding girder i iron 11.Last according to construction requirement and Hanging Basket rigidity requirement, be separated the spot welding of girder 1 and base 2, utilize the general jacking 2 ~ 4cm of jackscrew (being generally 25t) symmetrical balance jacking hinged adjustable setting 2(), add interpolation steel plate 20(to add according to actual needs, general 2 ~ 3 pieces), reach pre-applied steel band pulling force, improve the girder anti-bending strength of two i iron 11 spellings.
The present invention is widely used in the bearing equipment of cantilever construction construction, according to heteroid bridge Reasonable pair, can reach the optimum efficiency of onsite application.
The present invention is not limited to above-described embodiment, adopt the structure identical or approximate with the above embodiment of the present invention and obtain other combine, all within protection scope of the present invention.
Claims (6)
1. a cantilever construction reassembling type triangle hanging basket load-bearing main couple, it is characterized in that comprising girder (1), adjustable setting (2), column (3), column cap gusset piece (4), diagonal member, adjustable setting (2) is formed by connecting by the first bearing pin (8) by top and the bottom; The bottom of adjustable setting (2) is connected by spot welding with the middle part of girder (1), the lower end on the affixed column in the top (3) of adjustable setting (2), the upper end of column (3) is bolted column cap gusset piece (4), the both sides of column cap gusset piece (4) connect diagonal member respectively by the second bearing pin (10), the symmetrical laying of diagonal member of both sides, the lower end of diagonal member is connected to one end of girder (1) by the 3rd bearing pin (9); Girder (1) comprises two i iron be arranged in parallel (11), and i iron (11) is welded with stiffener (13); I iron (11) and diagonal member junction are welded with bearing pin and strengthen pasting board (15); Weld reinforced company's fishplate bar (14) between two i iron (11), and weld several piece batten plate (12) between the top and the bottom, both sides of two i iron (11); Column (3) comprises two channel-section steels (31), and the upper end of two channel-section steels (31) all has several bolt hole, and steel plate (34) is strengthened in welding in bolt hole position; The notch of two channel-section steels (31) relatively and adjust the relative spacing of two channel-section steels (31), welds polylith batten plate (32) between the both sides of two channel-section steels (31); Described diagonal member is connected by bearing pin successively by three sections and forms, and every section of described diagonal member comprises two steel bands, and the two ends of steel band all have pinned connection hole, and is welded with bearing pin reinforcement pasting board (52) in the outside of steel band.
2. cantilever construction reassembling type triangle hanging basket load-bearing main couple as claimed in claim 1, is characterized in that: diaphragm (33) is strengthened in the inner end positions welding of offering bolt hole near sites in channel-section steel (31).
3. cantilever construction reassembling type triangle hanging basket load-bearing main couple as claimed in claim 1, it is characterized in that: column cap gusset piece (4) comprises two pieces of junction plates (41), junction plate (41) has two pinned connection holes, and near pinned connection hole, bearing pin reinforcement pasting board (42) is all welded in the both sides of position.
4. cantilever construction reassembling type triangle hanging basket load-bearing main couple as claimed in claim 1, it is characterized in that: the top of adjustable setting (2) comprises a top board (23), on top board (23) vertical welding several piece parallel and leave spacing arrangement the first stiffener (21), in lateral surface each vertical welding second stiffener (22) of both sides first stiffener (21), the second stiffener (22) vertical welding is on top board (23); Vertical welding otic placode (26) and the 3rd stiffener (24) under top board (23), the 3rd stiffener (24) and otic placode (26) also vertical welding.
5. cantilever construction reassembling type triangle hanging basket load-bearing main couple as claimed in claim 4, it is characterized in that: the bottom of adjustable setting (2) comprises a base plate (29), be affixed with steel plate (20) and weld under base plate (29), vertical welding otic placode (27) and several piece the 4th stiffener (28) on base plate (29), several piece the 4th stiffener (28) vertical welding is in the both sides of otic placode (27).
6. cantilever construction reassembling type triangle hanging basket load-bearing main couple as claimed in claim 5, is characterized in that: the two sides of top otic placode (26), bottom otic placode (27) are all welded bearing pin and strengthened pasting board (25); Top otic placode (26) is connected by bearing pin (8) with bottom otic placode (27).
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| CN201310348240.6A CN103696368B (en) | 2013-08-12 | 2013-08-12 | A kind of cantilever construction reassembling type triangle hanging basket load-bearing main couple |
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| CN105648911B (en) * | 2014-11-25 | 2017-11-24 | 中铁二十一局集团有限公司 | Bridge construction Cast-in-situ Beam, bent cap, binder concrete adhesion type prestressed girder support |
| CN104535406B (en) * | 2014-12-16 | 2017-02-22 | 浙江大学 | Fatigue loading device of steel truss bridge welded joint under multi-axis loading effect |
| CN108016970A (en) * | 2018-01-26 | 2018-05-11 | 苏州沃诺斯精密机械有限公司 | A kind of elevator |
| CN109505268A (en) * | 2018-12-29 | 2019-03-22 | 中铁大桥局集团第八工程有限公司 | A kind of walking rail-free triangle hanging basket and construction method |
| CN110688787B (en) * | 2019-08-28 | 2023-06-27 | 浙江工业大学 | Bolt group stress determination method for strip-shaped base under action of transverse bending moment locally |
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