CN205205680U - Cast -in -place arched bridge member formula support steel arc distribution beam construction - Google Patents
Cast -in -place arched bridge member formula support steel arc distribution beam construction Download PDFInfo
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- CN205205680U CN205205680U CN201521032650.0U CN201521032650U CN205205680U CN 205205680 U CN205205680 U CN 205205680U CN 201521032650 U CN201521032650 U CN 201521032650U CN 205205680 U CN205205680 U CN 205205680U
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Abstract
The utility model relates to a cast -in -place arched bridge member formula support steel arc distribution beam construction, its characterized in that: the structure replace the wooden arched beam structure in the cast -in -place arched bridge, support the construction of whole arched bridge, this structure comprises the connection of a plurality of sections arc distribution roof beams, and arc distribution roof beam below is equipped with the wedge mount, arranges the adjustable top at member formula full framing top in and holds in the palm, arc distribution roof beam top is equipped with anti -skidding dog, prevents that the transverse distribution roof beam on upper portion from sliding. The utility model discloses it is reliable to have intensity stability, whole firm in connection is reliable, replace traditional wooden arched beam, the cutting down of great reduction trees, it is convenient to make, install, demolish, the load is reasonable reliable to the support transmission, steel arc distribution roof beam can also the back bending become straight, recycle, characteristics such as economic environmental protection.
Description
Technical field
Bridge Reconstruction technical field involved by the utility model, is specifically related to the steel arc distribution beam structure being arranged at cradle top when a kind of rod member formula full framing does cast-in-place arch bridge main arch construction bracket.Be particularly useful for the cast-in-place construction of large width steel flanged beam plate arch or box plate arch.
Background technology
Arch bridge has long history in China, although the long-term erosion of the Nature is experienced all kinds of in its model The Zhaozhou Bridge, and the radiance of the Chinese nation's science and technology wisdom that still continues so far to glitter.Arch bridge has can make full use of stone material or the higher compressive strength of mixed concrete material, realizes larger span ability, and the advantage such as bridge type is attractive and durable, cost relative moderate.After the foundation of new China, particularly after reform and opening-up, national economy and traffic infrastructure high speed development, a large amount of arch bridges is used and builds up in highway, railway and municipal engineering, has burst out vigorous vitality once again.Many Long span, large span arch bridge are enjoyed great prestige in the world with the construction method of its high technique of design and construction content and novelty.
But then, still have the arch bridge that accounting is larger, its construction method adopts console mode rod member formula full framing cast-in-place.This cast-in-place method cradle top density of setting larger settle main arch bed die and going down main arch working load to distribution beam in length and breadth.Until in recent years, adopt the cast-in-place arch bridge of this class stent Methods, under soffit, longitudinal distribution beam of cradle top is still the arc wood adopting high-quality timber to make substantially.Namely usually by artificial means the back side (end face) of the lumps of wood of certain length and sectional dimension is trimmed to the arc matched with main arch soffit, what have also will be made suitable arc timber truss structure in conjunction with other Nogata is wooden, then adopts suitable method that arc wood (or arc timber truss structure) is connected with its lower carriage main body.Arc wood and arc timber truss structure fabrication and connection handling work comparatively loaded down with trivial details, backward in technique.
Timber is a kind of heterogeneous body and non-isotropy material.Different seeds, the different age of trees, the old and new's degree, dry wet degree, corruption degree, the texture trend etc. of tree bar diverse location and timber all have very large impact to strength of wood.When doing Force Calculation formula to wooden construction, designer usually can only be worth by rule of thumb and calculates strength of wood value.This way is inadequate scientific and precise, easily causes the determination generation deviation of timber and lumber standards, and actual strength is not enough, recurring structure malicious event.In addition, the joint between arc wood (or arc timber truss structure), between arc wood (or arc timber truss structure) and its lower carriage main body is dealt with improperly, also easily joint malicious event occurs when strength of joint is not enough.
In environmental protection, when adopting arc wood (or arc timber truss structure) to make longitudinal distribution structure, cast-in-situ bridge will the timber of at substantial, is very unfavorable for environmental protection.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of requirement that can reach completely to arch in arch bridge design; Integrated connection strength and stability is high; Making, the equal rapid and convenient of installation and removal; Increase work efficiency; Load is to the reasonable reliable cast-in-place arch bridge rod member cribbing steel arc distribution beam structure of support transmission.
To achieve these goals, the technical solution adopted in the utility model is:
A cast-in-place arch bridge rod member cribbing steel arc distribution beam structure, is characterized in that: described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam, is provided with wedge mount below arc distribution beam, is placed on the adjustable jack at rod member formula full framing top; Be provided with Anti skid stop dog above arc distribution beam, prevent the transverse distribution beam on top from sliding.
Described structure adopts steel or alloy material to make.
In the described employing of arc distribution beam i iron, H profile steel, channel-section steel or rectangle steel tube sheet, any one bends shaping.
The two ends of described arc distribution beam are all provided with flange, each joint arc distribution beam are mutually docked by flange, and recycling connector is tightened fixing.
The method that described arc distribution beam bends shaping employing is: forming mill bends forming method, form approximate curved bend forming method with broken line or hot bending bends any one in forming method.
Described wedge mount, for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
Described Anti skid stop dog adopts any one making in i iron, H profile steel, channel-section steel, angle steel or rectangular steel pipe.
Be provided with at arch bridge top and unload frame section arc distribution beam, described frame section arc distribution beam two ends of unloading are provided with outside lower tiltedly symmetrical flange.
Material made by the metric system shaped steel that the utility model utilizes qualified manufacturer to dispatch from the factory, instrument processed is made with sectional steel cold-bending machine (comprising comparatively advanced digital-control type), with the method that the method for the broken line close to camber line or hot bending bend, section steel manufacture is become, satisfactory arcuate shape that match with main arch arc.And the below of shaped steel after bending, the position corresponding with rod member cribbing each vertical rod top arrange wedge mount (welding with shaped steel), make load along vertical rod transfers to vertical rod, prevent vertical rod from destroying by bias voltage lateral bending.Arranging steel on-slip block (welding with shaped steel) at shaped steel end face prevents transverse distribution beam on it from gliding along arch dam.Simultaneously, because whole arch arch arc is longer, steel arc distribution beam is spliced to form whole arch arc after need being bent by some nodal pattern steel, normal direction flange arrangement (flange arrangement and shaped steel welding edges) can be adopted between non-arch crown part arc distribution beam respectively saves to be connected by bolt and nut, also can to adopt between longitudinal distribution beam to dock welding manner or to adopt the mode of steel plate double team to connect.The longitudinal arc of shaped steel is joined beam and is then established at vault place and special unload frame section, and two ends establish the flange arrangement of symmetrical lower outside tilted direction to be connected with non-frame section arc distribution beam of unloading, to facilitate the dismounting of main arch construction distribution beam itself, support and template afterwards.Steel distribution beam makes numbering according to the main arch full-page proof that prior setting-out is good on the ground, then install and adjust that handling to bridge location support is checked the number, and to ensure that each vertical rod position distribution beam elevation is correct, wedge mount is connected well with rack rod, contact closely.
The utility model is substantive distinguishing features and useful progress compared with prior art:
1, the utility model adopts metric system section steel manufacture, and intensity stability is reliable; Firm and reliable connection between distribution beam sections; When adopting numerical controlled machinery to make, make quick and precisely; Install with dismounting convenient and swift; Load is rationally reliable to support transmission; Good skid-proof function is reliably had to the transverse distribution beam on it; Distribution beam structure be used to complete after, bottom wedge mount, top Anti skid stop dog and two ends flange configuration can be removed, with formed steel bending machine by arc-shaped steel back bending to straight line, shaped steel can be made to use in other structure, construction cost can be reduced well; And a large amount of high-quality timber can be saved, have good environmental benefit.
2, material made by the metric system shaped steel that the utility model utilizes qualified manufacturer to dispatch from the factory, instrument processed is made with sectional steel cold-bending machine (comprising comparatively advanced digital-control type), with the method that the method for the broken line close to camber line or hot bending bend, section steel manufacture is become, satisfactory arcuate shape that match with main arch arc.
3, the arch of the utility model arch bridge is by arc distribution beam with unload frame section arc distribution beam and form, arc distribution beam is that a kind of rod member formula full framing is as the longitudinal distribution beam being arranged at rack rod top during cast-in-place arch bridge main arch construction bracket, on the one hand play a part to bear main arch working load and by load going down to support, its shape also will reach consistent with main arch arc on the other hand, meet with the arc after ensureing main arch construction the form parameter requirement designing arc, play a part to mould main arch curved arch shape.
4, the utility model adopts wedge mount, makes load along vertical rod transfers to vertical rod, prevents vertical rod from destroying by bias voltage lateral bending; Can ensure that again arc distribution beam is in equilibrium state.
5, the utility model is provided with at arch top and unloads frame section arc distribution beam, and at the end of engineering, the light safe dismounting arc distribution beam of energy, can larger effect improving dismounting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model cast-in-place arch bridge rod member cribbing steel arc distribution beam structure local.
Fig. 2 is the structural representation that the utility model longitudinally unloads frame section arc distribution beam.
Fig. 3 is the structural representation of the utility model arc distribution beam upper flange section.
Fig. 4 is the structural representation of the utility model cast-in-place arch bridge rod member cribbing steel arc distribution beam structure.
Sequence number in figure and component names are: arc distribution beam 1, flange 2, connector 3, wedge mount 4, Anti skid stop dog 5, adjustable jack 6, rod member formula full framing 7, unload frame section arc distribution beam 8.
Detailed description of the invention
Below in conjunction with embodiment of the present utility model, the utility model is further described.
Embodiment 1:
Referring to Fig. 1,2,3,4, a kind of cast-in-place arch bridge rod member cribbing steel arc distribution beam structure of the utility model, described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam 1, is provided with wedge mount 4 below arc distribution beam 1, is placed on the adjustable jack 6 at rod member formula full framing 7 top; Be provided with Anti skid stop dog 5 above arc distribution beam 1, prevent the transverse distribution beam on top from sliding.
Described structure adopts Steel material to make.
It is shaping that described arc distribution beam 1 adopts i iron to bend.
The two ends of described arc distribution beam 1 are all provided with flange 2, each joint arc distribution beam 1 are mutually docked by flange 2, and recycling connector 3 is tightened fixing.
The method that described arc distribution beam 1 bends shaping employing is: forming mill bends forming method.
Described wedge mount 4, for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
Described Anti skid stop dog 5 adopts i iron to make.
Be provided with at arch bridge top and unload frame section arc distribution beam 8, described frame section arc distribution beam 8 two ends of unloading are provided with outside lower tiltedly symmetrical flange 2.
The construction method taked comprises the following steps:
(1) on the place with the smooth sclerosis of concrete, release arc distribution beam structure 1:1 designed full-page proof, comprised exact position and the geomery of wedge mount 4 and Anti skid stop dog 5, then release arch bridge rod member formula full framing 7 respectively row's vertical rod pile No. line;
(2) measure the arc data of each joint arc distribution beam 1 full-page proof, input numerical control sectional steel cold-bending machine, is bent to shaped steel and matches with predetermined arc; Each joint arc distribution beam 1 after bending is back to full-page proof inspection and coincide situation, as misfitted, should return forming mill adjustment again, until coincide; Arc distribution beam 1 is bent to vault piecemeal by arch springing, and numbers according to the order of sequence;
(3) on full-page proof, measure each wedge mount 4 form parameter, make each wedge mount 4, and number according to the order of sequence;
(4) each wedge mount 4 conforms on full-page proof and positions together with each joint arc distribution beam 1, correct with the lengthwise position or pile No., distance or longitudinal step pitch that ensure arc distribution beam 1 and each wedge mount 4, and both longitudinal axis are aimed at; The fixed form of wedge mount 4 and arc distribution beam 1 is for being welded and fixed, and welding manner is outside fillet weld;
(5) Anti skid stop dog 5 is first made on the ground; Each joint arc distribution beam 1 is interconnected to form arch arc beam on level land, after whole arch arc beam meets the requirements, then in arc distribution beam 1, mark Anti skid stop dog 5 correspondence position according to certain spacing, and the position of alignment mark is installed Anti skid stop dog 5 and is welded and fixed;
(6) often save arc distribution beam 1 two ends and establish one piece of flange 2, flange 2 marks joint line, it is docked with arc distribution beam 1 and accurately meets, and guarantee that flange 2 plate face is in normal plane, adopt full weld seam to weld at joint, can ensure to be connected firmly, improve integrated connection intensity; Every block flange is provided with bolt connecting hole, uses bolt to be fixed connection when being convenient to install; Be reserved with suitable spacing between bolt connecting hole and arc distribution beam, can tighten with spanner or electronic nut driving machine to facilitate bolt;
(7) lay the longitudinal arc distribution beam 1 of several permutation side by side according to arch bridge even width, form the structure supporting whole arch bridge; And lift simultaneously, tower crane, mobile crane or crawler crane is adopted to lift to the arc distribution beam 1 of each sections of the correspondence of each arch, all by arch springing to vault by segment lifting, make each wedge mount of arc distribution beam 1 lower surface correctly be seated on the adjustable jack 6 of each correspondence; Observing by design altitude and establishing operating personnel to finely tune jacking makes elevation of top surface meet; And while guarantee arc distribution beam 1 elevation is correct, observes and adjust all adjustable jacks 6 and contact corresponding wedge mount; And the timely neat bolt with tightening on joint flange 2, again the adjustable jack 6 of each wedge mount 4 correspondence is regulated in right amount, ensure when arc distribution beam 1 adopt i iron, H profile steel bends shaping, each web center of sections arc distribution beam 1 and the center centering of jacking bar, when arc distribution beam 1, to adopt channel-section steel or rectangular steel pipe to bend shaping, the curved arc face plate center of each sections arc distribution beam 1 and the center centering of adjustable jack 6 bar; In same arch, each sections arc distribution beam 1 is in same vertical facade;
(8) be provided with at arch bridge top and unload frame section arc distribution beam 8, unload frame section arc distribution beam 8 two ends and be provided with outside lower tiltedly symmetrical flange 2, flange 2 installation direction on arc distribution beam 1 butt end of docking with it is all corresponding; Unload frame section arc distribution beam 8 one end and be first connected with the arc distribution beam 1 of its docking, and the upper neat and bolt that tightens on flange 2, after lift, the lifting arc distribution beam 1 corresponding with other one end also on together with the bolt tightened on flange 2;
(9) adopt the horizontal elongated entirety of channel-section steel, round steel pipe or rectangular steel pipe to be fixedly connected with to the longitudinal arc distribution beam 1 of several permutation that is arranged side by side, and elongated channel-section steel, round steel pipe or rectangular steel pipe are set at a certain distance; Arc distribution beam 1 welding manner in horizontal elongated, round steel pipe or rectangular steel pipe and arch adopts fillet weld welding mode to be welded and fixed, when welding, laterally elongated channel-section steel, round steel pipe or rectangular steel pipe and junction, arc distribution beam 1 upper surface establish little length weld seam to fix, do not establish elongated weld seam, weld seam is cut off when unloading frame to facilitate channel-section steel, round steel pipe or rectangular steel pipe, and the damage reduced channel-section steel or angle steel and arc distribution beam 1, recycle in order to section bar; By horizontal elongated channel-section steel, round steel pipe or rectangular steel pipe, the arc distribution beam 1 in each arch is connected into entirety, resistance to overturning can be made good, and arc distribution beam 1 can be prevented to be shifted, to turn on one's side;
(10) after a site construction completes, dismantled in order by component, classification is transported to next use building site, can use once again after remaking proper technology process; Also can using making the section bar back bending of arc distribution beam to original state as other purposes when not re-using.
Embodiment 2:
Referring to Fig. 1,2,3,4, a kind of cast-in-place arch bridge rod member cribbing steel arc distribution beam structure of the utility model, described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam 1, is provided with wedge mount 4 below arc distribution beam 1, is placed on the adjustable jack 6 at rod member formula full framing 7 top; Be provided with Anti skid stop dog 5 above arc distribution beam 1, prevent the transverse distribution beam on top from sliding.
Described structure adopts Steel material to make.
It is shaping that described arc distribution beam 1 adopts H profile steel to bend.
The two ends of described arc distribution beam 1 are all provided with flange 2, each joint arc distribution beam 1 are mutually docked by flange 2, and recycling connector 3 is tightened fixing.
The method that described arc distribution beam 1 bends shaping employing is: form approximate curved bend forming method with broken line.
Described wedge mount 4, for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
Described Anti skid stop dog 5 adopts H profile steel to make.
Be provided with at arch bridge top and unload frame section arc distribution beam 8, described frame section arc distribution beam 8 two ends of unloading are provided with outside lower tiltedly symmetrical flange 2.
The construction method taked comprises the following steps:
(1) on the place with the smooth sclerosis of concrete, release arc distribution beam structure 1:1 designed full-page proof, comprised exact position and the geomery of wedge mount 4 and Anti skid stop dog 5, then release arch bridge rod member formula full framing 7 respectively row's vertical rod pile No. line;
(2) measure the arc data of each joint arc distribution beam 1 full-page proof, input numerical control sectional steel cold-bending machine, is bent to shaped steel and matches with predetermined arc; Each joint arc distribution beam 1 after bending is back to full-page proof inspection and coincide situation, as misfitted, should return forming mill adjustment again, until coincide; Arc distribution beam 1 is bent to vault piecemeal by arch springing, and numbers according to the order of sequence;
(3) on full-page proof, measure each wedge mount 4 form parameter, make each wedge mount 4, and number according to the order of sequence;
(4) each wedge mount 4 conforms on full-page proof and positions together with each joint arc distribution beam 1, correct with the lengthwise position or pile No., distance or longitudinal step pitch that ensure arc distribution beam 1 and each wedge mount 4, and both longitudinal axis are aimed at; The fixed form of wedge mount 4 and arc distribution beam 1 is for being welded and fixed, and welding manner is outside fillet weld;
(5) Anti skid stop dog 5 is first made on the ground; Each joint arc distribution beam 1 is interconnected to form arch arc beam on level land, after whole arch arc beam meets the requirements, then in arc distribution beam 1, mark Anti skid stop dog 5 correspondence position according to certain spacing, and the position of alignment mark is installed Anti skid stop dog 5 and is welded and fixed;
(6) often save arc distribution beam 1 two ends and establish one piece of flange 2, flange 2 marks joint line, it is docked with arc distribution beam 1 and accurately meets, and guarantee that flange 2 plate face is in normal plane, adopt full weld seam to weld at joint, can ensure to be connected firmly, improve integrated connection intensity; Every block flange is provided with bolt connecting hole, uses bolt to be fixed connection when being convenient to install; Be reserved with suitable spacing between bolt connecting hole and arc distribution beam, can tighten with spanner or electronic nut driving machine to facilitate bolt;
(7) lay the longitudinal arc distribution beam 1 of several permutation side by side according to arch bridge even width, form the structure supporting whole arch bridge; And lift simultaneously, tower crane, mobile crane or crawler crane is adopted to lift to the arc distribution beam 1 of each sections of the correspondence of each arch, all by arch springing to vault by segment lifting, make each wedge mount of arc distribution beam 1 lower surface correctly be seated on the adjustable jack 6 of each correspondence; Observing by design altitude and establishing operating personnel to finely tune jacking makes elevation of top surface meet; And while guarantee arc distribution beam 1 elevation is correct, observes and adjust all adjustable jacks 6 and contact corresponding wedge mount; And the timely neat bolt with tightening on joint flange 2, again the adjustable jack 6 of each wedge mount 4 correspondence is regulated in right amount, ensure when arc distribution beam 1 adopt i iron, H profile steel bends shaping, each web center of sections arc distribution beam 1 and the center centering of jacking bar, when arc distribution beam 1, to adopt channel-section steel or rectangular steel pipe to bend shaping, the curved arc face plate center of each sections arc distribution beam 1 and the center centering of adjustable jack 6 bar; In same arch, each sections arc distribution beam 1 is in same vertical facade;
(8) be provided with at arch bridge top and unload frame section arc distribution beam 8, unload frame section arc distribution beam 8 two ends and be provided with outside lower tiltedly symmetrical flange 2, flange 2 installation direction on arc distribution beam 1 butt end of docking with it is all corresponding; Unload frame section arc distribution beam 8 one end and be first connected with the arc distribution beam 1 of its docking, and the upper neat and bolt that tightens on flange 2, after lift, the lifting arc distribution beam 1 corresponding with other one end also on together with the bolt tightened on flange 2;
(9) adopt the horizontal elongated entirety of channel-section steel, round steel pipe or rectangular steel pipe to be fixedly connected with to the longitudinal arc distribution beam 1 of several permutation that is arranged side by side, and elongated channel-section steel, round steel pipe or rectangular steel pipe are set at a certain distance; Arc distribution beam 1 welding manner in horizontal elongated, round steel pipe or rectangular steel pipe and arch adopts fillet weld welding mode to be welded and fixed, when welding, laterally elongated channel-section steel, round steel pipe or rectangular steel pipe and junction, arc distribution beam 1 upper surface establish little length weld seam to fix, do not establish elongated weld seam, weld seam is cut off when unloading frame to facilitate channel-section steel, round steel pipe or rectangular steel pipe, and the damage reduced channel-section steel or angle steel and arc distribution beam 1, recycle in order to section bar; By horizontal elongated channel-section steel, round steel pipe or rectangular steel pipe, the arc distribution beam 1 in each arch is connected into entirety, resistance to overturning can be made good, and arc distribution beam 1 can be prevented to be shifted, to turn on one's side;
(10) after a site construction completes, dismantled in order by component, classification is transported to next use building site, can use once again after remaking proper technology process; Also can using making the section bar back bending of arc distribution beam to original state as other purposes when not re-using.
Embodiment 3:
Referring to Fig. 1,2,3,4, a kind of cast-in-place arch bridge rod member cribbing steel arc distribution beam structure of the utility model, described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam 1, is provided with wedge mount 4 below arc distribution beam 1, is placed on the adjustable jack 6 at rod member formula full framing 7 top; Be provided with Anti skid stop dog 5 above arc distribution beam 1, prevent the transverse distribution beam on top from sliding.
Described structure adopts Steel material to make.
It is shaping that described arc distribution beam 1 adopts channel-section steel to bend.
The two ends of described arc distribution beam 1 are all provided with flange 2, each joint arc distribution beam 1 are mutually docked by flange 2, and recycling connector 3 is tightened fixing.
The method that described arc distribution beam 1 bends shaping employing is: hot bending bends forming method.
Described wedge mount 4, for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
Described Anti skid stop dog 5 adopts channel-section steel to make.
Be provided with at arch bridge top and unload frame section arc distribution beam 8, described frame section arc distribution beam 8 two ends of unloading are provided with outside lower tiltedly symmetrical flange 2.
The construction method taked comprises the following steps:
(1) on the place with the smooth sclerosis of concrete, release arc distribution beam structure 1:1 designed full-page proof, comprised exact position and the geomery of wedge mount 4 and Anti skid stop dog 5, then release arch bridge rod member formula full framing 7 respectively row's vertical rod pile No. line;
(2) measure the arc data of each joint arc distribution beam 1 full-page proof, input numerical control sectional steel cold-bending machine, is bent to shaped steel and matches with predetermined arc; Each joint arc distribution beam 1 after bending is back to full-page proof inspection and coincide situation, as misfitted, should return forming mill adjustment again, until coincide; Arc distribution beam 1 is bent to vault piecemeal by arch springing, and numbers according to the order of sequence;
(3) on full-page proof, measure each wedge mount 4 form parameter, make each wedge mount 4, and number according to the order of sequence;
(4) each wedge mount 4 conforms on full-page proof and positions together with each joint arc distribution beam 1, correct with the lengthwise position or pile No., distance or longitudinal step pitch that ensure arc distribution beam 1 and each wedge mount 4, and both longitudinal axis are aimed at; The fixed form of wedge mount 4 and arc distribution beam 1 is for being welded and fixed, and welding manner is outside fillet weld;
(5) Anti skid stop dog 5 is first made on the ground; Each joint arc distribution beam 1 is interconnected to form arch arc beam on level land, after whole arch arc beam meets the requirements, then in arc distribution beam 1, mark Anti skid stop dog 5 correspondence position according to certain spacing, and the position of alignment mark is installed Anti skid stop dog 5 and is welded and fixed;
(6) often save arc distribution beam 1 two ends and establish one piece of flange 2, flange 2 marks joint line, it is docked with arc distribution beam 1 and accurately meets, and guarantee that flange 2 plate face is in normal plane, adopt full weld seam to weld at joint, can ensure to be connected firmly, improve integrated connection intensity; Every block flange is provided with bolt connecting hole, uses bolt to be fixed connection when being convenient to install; Be reserved with suitable spacing between bolt connecting hole and arc distribution beam, can tighten with spanner or electronic nut driving machine to facilitate bolt;
(7) lay the longitudinal arc distribution beam 1 of several permutation side by side according to arch bridge even width, form the structure supporting whole arch bridge; And lift simultaneously, tower crane, mobile crane or crawler crane is adopted to lift to the arc distribution beam 1 of each sections of the correspondence of each arch, all by arch springing to vault by segment lifting, make each wedge mount of arc distribution beam 1 lower surface correctly be seated on the adjustable jack 6 of each correspondence; Observing by design altitude and establishing operating personnel to finely tune jacking makes elevation of top surface meet; And while guarantee arc distribution beam 1 elevation is correct, observes and adjust all adjustable jacks 6 and contact corresponding wedge mount; And the timely neat bolt with tightening on joint flange 2, again the adjustable jack 6 of each wedge mount 4 correspondence is regulated in right amount, ensure when arc distribution beam 1 adopt i iron, H profile steel bends shaping, each web center of sections arc distribution beam 1 and the center centering of jacking bar, when arc distribution beam 1, to adopt channel-section steel or rectangular steel pipe to bend shaping, the curved arc face plate center of each sections arc distribution beam 1 and the center centering of adjustable jack 6 bar; In same arch, each sections arc distribution beam 1 is in same vertical facade;
(8) be provided with at arch bridge top and unload frame section arc distribution beam 8, unload frame section arc distribution beam 8 two ends and be provided with outside lower tiltedly symmetrical flange 2, flange 2 installation direction on arc distribution beam 1 butt end of docking with it is all corresponding; Unload frame section arc distribution beam 8 one end and be first connected with the arc distribution beam 1 of its docking, and the upper neat and bolt that tightens on flange 2, after lift, the lifting arc distribution beam 1 corresponding with other one end also on together with the bolt tightened on flange 2;
(9) adopt the horizontal elongated entirety of channel-section steel, round steel pipe or rectangular steel pipe to be fixedly connected with to the longitudinal arc distribution beam 1 of several permutation that is arranged side by side, and elongated channel-section steel, round steel pipe or rectangular steel pipe are set at a certain distance; Arc distribution beam 1 welding manner in horizontal elongated, round steel pipe or rectangular steel pipe and arch adopts fillet weld welding mode to be welded and fixed, when welding, laterally elongated channel-section steel, round steel pipe or rectangular steel pipe and junction, arc distribution beam 1 upper surface establish little length weld seam to fix, do not establish elongated weld seam, weld seam is cut off when unloading frame to facilitate channel-section steel, round steel pipe or rectangular steel pipe, and the damage reduced channel-section steel or angle steel and arc distribution beam 1, recycle in order to section bar; By horizontal elongated channel-section steel, round steel pipe or rectangular steel pipe, the arc distribution beam 1 in each arch is connected into entirety, resistance to overturning can be made good, and arc distribution beam 1 can be prevented to be shifted, to turn on one's side;
(10) after a site construction completes, dismantled in order by component, classification is transported to next use building site, can use once again after remaking proper technology process; Also can using making the section bar back bending of arc distribution beam to original state as other purposes when not re-using.
Embodiment 4:
Referring to Fig. 1,2,3,4, a kind of cast-in-place arch bridge rod member cribbing steel arc distribution beam structure of the utility model, described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam 1, is provided with wedge mount 4 below arc distribution beam 1, is placed on the adjustable jack 6 at rod member formula full framing 7 top; Be provided with Anti skid stop dog 5 above arc distribution beam 1, prevent the transverse distribution beam on top from sliding.
Described structure adopts alloy material to make.
It is shaping that described arc distribution beam 1 adopts rectangular steel pipe to bend.
The two ends of described arc distribution beam 1 are all provided with flange 2, each joint arc distribution beam 1 are mutually docked by flange 2, and recycling connector 3 is tightened fixing.
The method that described arc distribution beam 1 bends shaping employing is: forming mill bends forming method.
Described wedge mount 4, for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
Described Anti skid stop dog 5 adopts bending steel plate to make.
Be provided with at arch bridge top and unload frame section arc distribution beam 8, described frame section arc distribution beam 8 two ends of unloading are provided with outside lower tiltedly symmetrical flange 2.
The construction method taked comprises the following steps:
(1) on the place with the smooth sclerosis of concrete, release arc distribution beam structure 1:1 designed full-page proof, comprised exact position and the geomery of wedge mount 4 and Anti skid stop dog 5, then release arch bridge rod member formula full framing 7 respectively row's vertical rod pile No. line;
(2) measure the arc data of each joint arc distribution beam 1 full-page proof, input numerical control sectional steel cold-bending machine, is bent to shaped steel and matches with predetermined arc; Each joint arc distribution beam 1 after bending is back to full-page proof inspection and coincide situation, as misfitted, should return forming mill adjustment again, until coincide; Arc distribution beam 1 is bent to vault piecemeal by arch springing, and numbers according to the order of sequence;
(3) on full-page proof, measure each wedge mount 4 form parameter, make each wedge mount 4, and number according to the order of sequence;
(4) each wedge mount 4 conforms on full-page proof and positions together with each joint arc distribution beam 1, correct with the lengthwise position or pile No., distance or longitudinal step pitch that ensure arc distribution beam 1 and each wedge mount 4, and both longitudinal axis are aimed at; The fixed form of wedge mount 4 and arc distribution beam 1 is for being welded and fixed, and welding manner is outside fillet weld;
(5) Anti skid stop dog 5 is first made on the ground; Each joint arc distribution beam 1 is interconnected to form arch arc beam on level land, after whole arch arc beam meets the requirements, then in arc distribution beam 1, mark Anti skid stop dog 5 correspondence position according to certain spacing, and the position of alignment mark is installed Anti skid stop dog 5 and is welded and fixed;
(6) often save arc distribution beam 1 two ends and establish one piece of flange 2, flange 2 marks joint line, it is docked with arc distribution beam 1 and accurately meets, and guarantee that flange 2 plate face is in normal plane, adopt full weld seam to weld at joint, can ensure to be connected firmly, improve integrated connection intensity; Every block flange is provided with bolt connecting hole, uses bolt to be fixed connection when being convenient to install; Be reserved with suitable spacing between bolt connecting hole and arc distribution beam, can tighten with spanner or electronic nut driving machine to facilitate bolt;
(7) lay the longitudinal arc distribution beam 1 of several permutation side by side according to arch bridge even width, form the structure supporting whole arch bridge; And lift simultaneously, tower crane, mobile crane or crawler crane is adopted to lift to the arc distribution beam 1 of each sections of the correspondence of each arch, all by arch springing to vault by segment lifting, make each wedge mount of arc distribution beam 1 lower surface correctly be seated on the adjustable jack 6 of each correspondence; Observing by design altitude and establishing operating personnel to finely tune jacking makes elevation of top surface meet; And while guarantee arc distribution beam 1 elevation is correct, observes and adjust all adjustable jacks 6 and contact corresponding wedge mount; And the timely neat bolt with tightening on joint flange 2, again the adjustable jack 6 of each wedge mount 4 correspondence is regulated in right amount, ensure when arc distribution beam 1 adopt i iron, H profile steel bends shaping, each web center of sections arc distribution beam 1 and the center centering of jacking bar, when arc distribution beam 1, to adopt channel-section steel or rectangular steel pipe to bend shaping, the curved arc face plate center of each sections arc distribution beam 1 and the center centering of adjustable jack 6 bar; In same arch, each sections arc distribution beam 1 is in same vertical facade;
(8) be provided with at arch bridge top and unload frame section arc distribution beam 8, unload frame section arc distribution beam 8 two ends and be provided with outside lower tiltedly symmetrical flange 2, flange 2 installation direction on arc distribution beam 1 butt end of docking with it is all corresponding; Unload frame section arc distribution beam 8 one end and be first connected with the arc distribution beam 1 of its docking, and the upper neat and bolt that tightens on flange 2, after lift, the lifting arc distribution beam 1 corresponding with other one end also on together with the bolt tightened on flange 2;
(9) adopt the horizontal elongated entirety of channel-section steel, round steel pipe or rectangular steel pipe to be fixedly connected with to the longitudinal arc distribution beam 1 of several permutation that is arranged side by side, and elongated channel-section steel, round steel pipe or rectangular steel pipe are set at a certain distance; Arc distribution beam 1 welding manner in horizontal elongated, round steel pipe or rectangular steel pipe and arch adopts fillet weld welding mode to be welded and fixed, when welding, laterally elongated channel-section steel, round steel pipe or rectangular steel pipe and junction, arc distribution beam 1 upper surface establish little length weld seam to fix, do not establish elongated weld seam, weld seam is cut off when unloading frame to facilitate channel-section steel, round steel pipe or rectangular steel pipe, and the damage reduced channel-section steel or angle steel and arc distribution beam 1, recycle in order to section bar; By horizontal elongated channel-section steel, round steel pipe or rectangular steel pipe, the arc distribution beam 1 in each arch is connected into entirety, resistance to overturning can be made good, and arc distribution beam 1 can be prevented to be shifted, to turn on one's side;
(10) after a site construction completes, dismantled in order by component, classification is transported to next use building site, can use once again after remaking proper technology process; Also can using making the section bar back bending of arc distribution beam to original state as other purposes when not re-using.
Claims (8)
1. a cast-in-place arch bridge rod member cribbing steel arc distribution beam structure, is characterized in that: described structure replaces the wooden arched girder structure in cast-in-place arch bridge, supports whole Arch Bridge Construction; This structure is connected and composed by some joint arc distribution beam (1), and arc distribution beam (1) below is provided with wedge mount (4), is placed on the adjustable jack (6) at rod member formula full framing (7) top; Arc distribution beam (1) top is provided with Anti skid stop dog (5), prevents the transverse distribution beam on top from sliding.
2. cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1, is characterized in that: described structure adopts steel or alloy material to make.
3. cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1, is characterized in that: in described arc distribution beam (1) employing i iron, H profile steel, channel-section steel or rectangular steel pipe, any one bends shaping.
4. the cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1 or 3, it is characterized in that: the two ends of described arc distribution beam (1) are all provided with flange (2), each joint arc distribution beam (1) mutually docked by flange (2), recycling connector (3) is tightened fixing.
5. the cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1 or 3, it is characterized in that, the method that described arc distribution beam (1) bends shaping employing is: forming mill bends forming method, form approximate curved bend forming method with broken line or hot bending bends any one in forming method.
6. cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1, is characterized in that: described wedge mount (4), for supporting stress point, guarantees that arc distribution beam is in equilibrium state.
7. cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1, is characterized in that: described Anti skid stop dog (5) adopts any one making in i iron, H profile steel, channel-section steel, angle steel or rectangular steel pipe.
8. cast-in-place arch bridge rod member cribbing steel arc distribution beam structure according to claim 1, it is characterized in that: be provided with at arch bridge top and unload frame section arc distribution beam (8), described frame section arc distribution beam (8) two ends of unloading are provided with outside lower tiltedly symmetrical flange (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032650.0U CN205205680U (en) | 2015-12-14 | 2015-12-14 | Cast -in -place arched bridge member formula support steel arc distribution beam construction |
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| CN201521032650.0U CN205205680U (en) | 2015-12-14 | 2015-12-14 | Cast -in -place arched bridge member formula support steel arc distribution beam construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544396A (en) * | 2015-12-14 | 2016-05-04 | 广西路建工程集团有限公司 | Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method |
| CN114635506A (en) * | 2022-03-30 | 2022-06-17 | 浙江东南网架股份有限公司 | Prismatic steel pipe truss arch springing and mounting method thereof |
-
2015
- 2015-12-14 CN CN201521032650.0U patent/CN205205680U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544396A (en) * | 2015-12-14 | 2016-05-04 | 广西路建工程集团有限公司 | Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method |
| CN114635506A (en) * | 2022-03-30 | 2022-06-17 | 浙江东南网架股份有限公司 | Prismatic steel pipe truss arch springing and mounting method thereof |
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