CN103437298B - Precast concrete box-beam hanging method and hanging apparatus - Google Patents
Precast concrete box-beam hanging method and hanging apparatus Download PDFInfo
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- CN103437298B CN103437298B CN201310396270.4A CN201310396270A CN103437298B CN 103437298 B CN103437298 B CN 103437298B CN 201310396270 A CN201310396270 A CN 201310396270A CN 103437298 B CN103437298 B CN 103437298B
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Abstract
The invention discloses a kind of precast concrete box-beam hanging method and hanging apparatus, described hanging method and device can reduce the damage to precast concrete box-beam in hoisting process, ensure prefabricated case beam level in hoisting process simultaneously.This device comprises precast concrete box-beam hanging apparatus and comprises equalizer bar, connecting rod, crossbeam; Described hanging method comprises step, install hanging apparatus at precast concrete box-beam two ends, start hanging device hoisting balance beam, the position of adjustment precast concrete box-beam makes it to be positioned at level, crossbeam drives precast concrete box-beam to be upwards promoted to above bridge pier, location and installation.Adopt this hanging apparatus, its compact conformation, good stability, and the damage to precast concrete box-beam in hoisting process can be reduced; Can repeatedly use, long service life; Adopt this hanging method, simple to operate, can realize precast concrete box-beam and be horizontal all the time in the process of lifting, be convenient to location, hoisting process safety is higher.
Description
Technical field
The present invention relates to precast concrete box-beam lifting field, especially a kind of precast concrete box-beam hanging method and hanging apparatus.
Background technology
Known: precast concrete box-beam has now been widely used in bridge engineering, but because the prefabricated case beam scale of construction is larger, erection process uses the big machineries such as Bridge Erector usually, but usually use wire rope (or suspender belt) to be bundled by case beam through hole for hoist when cannot use Bridge Erector, then rope band is hung on straddle truck or hoist lifting hook, realize carrying and the erection of case beam, due to the way of contact of rope band and case beam, be easy to make the places such as case beam hole for hoist and belly impaired, very easily damage is caused to rope band simultaneously, both case beam quality had been affected, bring potential safety hazard can to again the lifting of reusable rope band.Need two ends to lift by crane during lifting simultaneously, but due to rope band flexibility comparatively large, easily produce case beam skew back, bring larger difficulty to the installation in place of case beam, need constantly adjust.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of damage that can reduce in hoisting process prefabricated case beam, ensures the precast concrete box-beam hanging apparatus of prefabricated case beam level in hoisting process simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: precast concrete box-beam hanging apparatus, comprise equalizer bar, connecting rod, crossbeam, described equalizer bar two ends are connected with connecting rod by the first syndeton, described crossbeam two ends are connected with connecting rod by the second syndeton, and described connecting rod is between equalizer bar and crossbeam.
Preferably, described connecting rod two ends are provided with pin-and-hole, and described first syndeton comprises upper pin, and described equalizer bar two ends are provided with pin-and-hole; Described second syndeton comprises lower bearing pin, and described crossbeam two ends are provided with lower pin-and-hole; Described upper pin passes the pin-and-hole of connecting rod one end and coordinates with the upper pin-and-hole on equalizer bar, and described lower bearing pin passes the pin-and-hole of the connecting rod other end and coordinates with the lower pin-and-hole on crossbeam.
Further, described equalizer bar is provided with hoisting structure; Described equalizer bar is provided with hoisting structure; Described equalizer bar is hollow structure; The soffit at described equalizer bar two ends is provided with installing hole, described upper pin-and-hole runs through the two sides of equalizer bar and is positioned at above installing hole, described connecting rod one end is arranged in installing hole, described hoisting structure, comprise lifting bearing pin, described equalizer bar upper surface center, to being arranged with hole for hoist, described equalizer bar is provided with through hole, described through hole runs through the two sides of equalizer bar and is positioned at below hole for hoist, and described lifting bearing pin coordinates with through hole; Described crossbeam is hollow structure, described crossbeam two ends are provided with runs through the upper surface of crossbeam and the connecting hole of soffit, the inner chamber of described crossbeam is provided with ribs and limiting plate, described connecting hole is between ribs and the inwall of beam-end, described ribs is between limiting plate and connecting hole, described lower pin-and-hole is arranged on crossbeam both ends of the surface center, and run through end face and the ribs of crossbeam, one end of described connecting rod is inserted in connecting hole, described lower bearing pin one end and limiting plate are close to, and the other end extends the end face of crossbeam.
Further, described second syndeton, also comprises screw and clamping plate, and described lower bearing pin one end is provided with groove, and described clamping plate are arranged on the end face of crossbeam, and described clamping plate one end is fixed by screw, and the groove of the other end and lower bearing pin is adaptive.
Further, described connecting rod two ends are provided with wing plate, and described pin-and-hole is arranged on wing plate center; The wing plate spatial vertical of described connecting rod one end wing plate and the connecting rod other end, the wing plate of described connecting rod one end and installing hole adaptation, the wing plate of the other end and connecting hole adaptation.
Present invention also offers a kind of precast concrete box-beam hanging method utilizing above-mentioned precast concrete box-beam hanging apparatus, comprise the following steps: A, by the first syndeton equalizer bar two ends connect connecting rod, equalizer bar is connected with hanging device simultaneously; B, place crossbeam respectively in the bottom surface at precast concrete box-beam two ends, the connecting rod be connected with equalizer bar two ends is connected with the two ends of crossbeam respectively by the second syndeton; C, startup hanging device, slowly promote crossbeam until crossbeam contacts with the bottom surface at precast concrete box-beam two ends, braking hanging device; D, the hanging device started on any one end of precast concrete box-beam, the position of adjustment precast concrete box-beam, makes solidifying native prefabricated case beam keep horizontal level, braking hanging device; E, start hanging device on precast concrete box-beam two ends, and the hoisting velocity of hanging device on precast concrete box-beam two ends is identical simultaneously; Precast concrete box-beam is winched to above bridge pier, braking hanging device; F, by the position of manual adjustment precast concrete box-beam above bridge pier, precast concrete box-beam two ends are all positioned at directly over bridge pier; Described bridge pier side is provided with gripper shoe, starts hanging device and slowly reduces precast concrete box-beam, and in the gripper shoe making crossbeam be positioned at bridge pier and the two ends of precast concrete box-beam are dropped on bridge pier, are arranged on by precast concrete box-beam on bridge pier; G, crossbeam and connecting rod to be split, start hanging device, hanging device promotes connecting rod and equalizer bar, makes connecting rod depart from precast concrete box-beam; H, crossbeam, connecting rod and equalizer bar are hung go back to ground.
Further, described connecting rod two ends are provided with pin-and-hole, and described first syndeton comprises upper pin, and described equalizer bar two ends are provided with pin-and-hole; Described second syndeton comprises lower bearing pin, and described crossbeam two ends are provided with lower pin-and-hole; In steps A, equalizer bar is connected with hanging device by lifting bearing pin, passes pin-and-hole and coordinate with the upper pin-and-hole of equalizer bar by upper pin, connects connecting rod and equalizer bar; In stepb by the pin-and-hole of lower bearing pin through connecting rod, and coordinate with the lower pin-and-hole of crossbeam, connect connecting rod and crossbeam.
Further, described equalizer bar is hollow structure; State on equalizer bar and be provided with hoisting structure, the soffit at described equalizer bar two ends is provided with installing hole, described upper pin-and-hole runs through the two sides of equalizer bar, and being positioned at above installing hole, described hoisting structure, comprises lifting bearing pin, described equalizer bar upper surface center is to being arranged with hole for hoist, described equalizer bar is provided with through hole, and described through hole runs through the two sides of equalizer bar and is positioned at below hole for hoist, and described lifting bearing pin coordinates with through hole; Described crossbeam is hollow structure, described crossbeam two ends are provided with runs through the upper surface of crossbeam and the connecting hole of soffit, the inner chamber of described crossbeam is provided with ribs and limiting plate, described connecting hole is between ribs and the inner side of crossbeam end face, and described ribs is between limiting plate and connecting hole; In steps A, equalizer bar is connected with hanging device by lifting bearing pin, is arranged in installing hole by connecting rod one end simultaneously, passes pin-and-hole and coordinate with the upper pin-and-hole of equalizer bar by upper pin, connects connecting rod and equalizer bar; In stepb one end of connecting rod is arranged in connecting hole, by the pin-and-hole of lower bearing pin through connecting rod, and coordinates with the lower pin-and-hole of crossbeam, connect connecting rod and crossbeam; Described lower bearing pin one end and limiting plate are close to, and the other end extends the end face of crossbeam.
Further, described second syndeton also comprises screw and clamping plate, described lower bearing pin one end is provided with groove, further comprising the steps of between described step B and step C, the end face of crossbeam installs clamping plate, by one end of screw strap, by adaptive for the groove of the clamping plate other end and lower bearing pin.
Further, further comprising the steps of between steps A and step B, in beam surface upper, anti-skid protection pad is set.
The invention has the beneficial effects as follows: the equalizer bar of precast concrete box-beam hanging apparatus of the present invention, connecting rod and crossbeam all adopt stiffener, good stability in the process of lifting, can the damage of less precast concrete box-beam, hanging apparatus itself is not easily damaged simultaneously, can repeatedly use, long service life.Precast concrete box-beam hanging method of the present invention is by adopting above-mentioned precast concrete box-beam hanging apparatus to lift precast concrete box-beam.Precast concrete box-beam hanging method of the present invention, compared with traditional hanging method, simple to operate, construction safety.Simultaneously in the process of lifting, precast concrete box-beam position easily controls, and can realize stable, the balance lifting of precast concrete box-beam.Can realize precast concrete box-beam to be horizontal all the time in the process of lifting, be convenient to location, hoisting process safety is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of whole Lift-on/Lift-off System in precast concrete box-beam hoisting process in embodiment;
Fig. 2 is the normal axomometric drawing of precast concrete box-beam hanging apparatus in embodiment;
Fig. 3 is the front view of precast concrete box-beam hanging apparatus in embodiment;
Fig. 4 is the sectional view of embodiment middle cross beam along the A-A in Fig. 3;
Fig. 5 is the lateral view of precast concrete box-beam hanging apparatus in embodiment;
Fig. 6 is the B-B sectional view in Fig. 5;
Fig. 7 is the normal axomometric drawing of connecting rod in embodiment;
Fig. 8 is the structural representation of embodiment second syndeton;
Indicate in figure: 1-equalizer bar, 11-installing hole, 12-hole for hoist, 13-through hole, 2-connecting rod, 21-wing plate, 22-pin-and-hole, 3-crossbeam, 31-connecting hole, 32-ribs, 33-limiting plate, pin-and-hole under 34-, 35a-upper surface, 35b-soffit, 41-upper pin, 42-lower bearing pin, 43-lifts bearing pin, 44-clamping plate, 45-screw, 5-precast concrete box-beam, 51-hole for hoist, 6-hanging device, 7-anti-skid protection pad.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figures 2 to 6, precast concrete box-beam hanging apparatus of the present invention, comprise equalizer bar 1, connecting rod 2, crossbeam 3, described equalizer bar 1 two ends are connected with connecting rod 2 by the first syndeton, described crossbeam 3 two ends are connected with connecting rod 2 by the second syndeton, and described connecting rod 2 is between equalizer bar 1 and crossbeam 3.
Above-mentioned precast concrete box-beam hanging apparatus comprises three parts: equalizer bar 1, connecting rod 2 and crossbeam 3.When lifting precast concrete box-beam 5, precast concrete box-beam 5 two ends are placed on the upper surface of crossbeam 3, hanging device 6 hoisting balance beam 1, equalizer bar 1 draws high crossbeam 3 by connecting rod 2, crossbeam 3 drives precast concrete box-beam 5 upwards to promote, thus realizes the lifting to precast concrete box-beam 5.Because precast concrete box-beam 5 is placed on crossbeam 3 all the time in the process of lifting, crossbeam 3, when being subject to connecting rod 2 pulling force upwards, produces a power upwards to precast concrete box-beam 5, drives precast concrete box-beam 5 to rise.Because crossbeam 3 can not produce extruding due to distortion to precast concrete box-beam 5 for stiffener, cause the damage of prefabricated case beam 5.Therefore can effectively avoid causing damage to precast concrete box-beam 5 in the process of lifting by this hanging apparatus.Simultaneously because the equalizer bar 1 of whole hanging apparatus, connecting rod 2 and crossbeam 3 are stiffener, can not moderate finite deformation be there is, good rigidly, good stability in the process of lifting, ensure that the safety of lifting.Lift because precast concrete box-beam 5 is installed on a stable hanging apparatus, when the hanging device 6 at precast concrete box-beam 5 two ends carries out simultaneously operating, precast concrete box-beam 5 can be made to be in level all the time.Thus be conducive to improving stability in precast concrete box-beam 5 hoisting process, safety, be convenient to the position of precast concrete box-beam 5 in hoisting process and when lift simultaneously and adjust.When Bridge Erector can not be used to lift precast concrete box-beam 5, traditional hanging method adopts wire rope or suspender belt to lift, because wire rope and suspender belt are flexible member, easily be out of shape during under tension, the damage that extruding causes precast concrete box-beam 5 can be produced to precast concrete box-beam 5 side, less stable in the process of lifting, wayward simultaneously, is easily subject to the interference of extraneous factor.Therefore adopt above-mentioned hanging apparatus can overcome conventional concrete prefabricated case beam 5 lift in problem, realize stable, the balance lifting to precast concrete box-beam 5.
In order to make the easy to connect, quick, stable of the connection of connecting rod 2 and equalizer bar 1 and connecting rod 2 and crossbeam 3.Can be realized by the first syndeton reasonable in design and the second syndeton.First syndeton and the second syndeton can be dismountable syndeton and fixed connection structure.Fixed connection structure can adopt welding, and dismountable syndeton for fastener or can be connected by high-strength bolt.Wherein a kind of preferred embodiment as shown in Figure 5, and the first syndeton and the second syndeton adopt pin shaft connection structure.Described connecting rod 2 two ends are provided with pin-and-hole 22, and described first syndeton comprises upper pin 41, and described equalizer bar 1 two ends are provided with pin-and-hole; Described second syndeton comprises lower bearing pin 42, and described crossbeam 3 two ends are provided with lower pin-and-hole 34; Described upper pin 41 passes the pin-and-hole 22 of connecting rod 2 one end and coordinates with the upper pin-and-hole on equalizer bar 1, and described lower bearing pin 42 passes the pin-and-hole 22 of connecting rod 2 other end and coordinates with the lower pin-and-hole 34 on crossbeam 3.Be connected by upper pin 41 between connecting rod 2 with equalizer bar 1, be connected by lower bearing pin 42 between connecting rod 2 with crossbeam 3, thus assembling process in rapid and convenient.Adopt its good stability that is rigidly connected simultaneously, the stability of hanging device in hoisting process can be ensured.
In order to save the production material of equalizer bar 1 and crossbeam 3, alleviating the weight of equalizer bar 1 self, alleviating lifting load, simultaneously in order to make equalizer bar 1 and hanging device fast easy to connect.As shown in Figures 3 to 6, described equalizer bar 1 is provided with hoisting structure, described equalizer bar 1 is hollow structure, the soffit at described equalizer bar 1 two ends is provided with installing hole 11, described upper pin-and-hole runs through the two sides of equalizer bar 1 and is positioned at above installing hole 11, described connecting rod 2 one end is arranged in installing hole 11, described hoisting structure, comprise lifting bearing pin 43, described equalizer bar 1 upper surface center, to being arranged with hole for hoist 12, described equalizer bar 1 is provided with through hole 13, described through hole 13 runs through the two sides of equalizer bar 1 and is positioned at below hole for hoist 12, and described lifting bearing pin 43 coordinates with through hole 13, described crossbeam 3 is hollow structure, described crossbeam 3 two ends are provided with runs through the upper surface 35a of crossbeam 3 and the connecting hole 31 of soffit 35b, the inner chamber of described crossbeam 3 is provided with ribs 32 and limiting plate 33, described connecting hole 31 is between ribs 32 and the inwall of crossbeam 3 end, described ribs 32 is between limiting plate 33 and connecting hole 31, described lower pin-and-hole 34 is arranged on crossbeam 3 both ends of the surface center, and run through end face and the ribs 32 of crossbeam 3, one end of described connecting rod 2 is inserted in connecting hole 31, described lower bearing pin 42 one end and limiting plate 33 are close to, the other end extends the end face of crossbeam 3.
By while ensureing that the intensity of equalizer bar 1 meets precast concrete box-beam lifting requirements, equalizer bar 1 is arranged to hollow structure.Thus the manufactured materials of equalizer bar 1 can be reduced while alleviating equalizer bar 1 own wt, reduce cost of manufacture.On equalizer bar 1, be provided with installing hole 11 simultaneously, connecting rod 2 one end is arranged in installing hole 11, make whole hanging apparatus structure compacter, and certain positioning action played to connecting rod 2, make connecting rod 2 lifting process in can not relatively and equalizer bar 1 slide.Improve the stability of whole hanging apparatus.Described hoisting structure, comprises lifting bearing pin 43.Be connected with between hanging device by lifting bearing pin 43, quick and convenient, be conducive to increasing work efficiency.Owing to being provided with the connecting hole 31 of upper surface and the soffit running through crossbeam 3 at crossbeam 3 two ends, one end of connecting rod 2 is arranged in connecting hole 31, therefore the effect can playing location to connecting rod 2 makes connecting rod 2 can not slide when lifting, connecting rod 2 remains unchanged with the position relationship of crossbeam 3, thus makes whole hanging apparatus stability better.
In order to make connecting rod 2 reliable with the stable connection of crossbeam 3, ensure the safety of hoisting process.As shown in Figure 7, the second syndeton, also comprises screw 45 and clamping plate 44, and described lower bearing pin 42 one end is provided with groove, and described clamping plate 44 are arranged on the end face of crossbeam 3, and described clamping plate 44 one end is fixed by screw 45, and the groove of the other end and lower bearing pin 42 is adaptive.Adaptive by clamping plate 44 and the groove on lower bearing pin 42, lower bearing pin 42 is fixed, makes lower bearing pin 42 play can not occur in the process of lifting, therefore ensure that stability and the reliability of connection.
In order to make the connection of connecting rod 2 with crossbeam 3 and the stable connection of connecting rod 2 and equalizer bar 1, firmly.Reasonably can arrange the position of connecting rod 2, crossbeam 3 and equalizer bar 1 simultaneously.As shown in figures 1 to 6, connecting rod 2 two ends are provided with wing plate 21, and described pin-and-hole 22 is arranged on wing plate 21 center; Described connecting rod 2 one end wing plate 21 is mutually vertical with the wing plate 21 of connecting rod 2 other end; The wing plate 21 of described connecting rod 2 one end is adaptive with installing hole 11, and the wing plate 21 of the other end is adaptive with connecting hole 31.Because the wing plate 21 at connecting rod 2 two ends is mutually vertical, the length of crossbeam 3 can be made shorter by favorably situated installation site, thus save the production material of crossbeam 3, reduce costs.Whole hoisting equipment structure can be made compacter, stability is better simultaneously.The wing plate at described connecting rod 2 two ends can be set to U-shaped, and U-shaped wing plate corner angle are few, not easily causes the injury to people in the process of carrying and transport.
Present invention also offers a kind of precast concrete box-beam hanging method adopting above-mentioned precast concrete box-beam hanging apparatus, comprise the following steps:
A, by the first syndeton equalizer bar 1 two ends connect connecting rod 2, equalizer bar 1 is connected with hanging device 6 simultaneously.
B, place crossbeam 3 respectively in the bottom surface at precast concrete box-beam 5 two ends, the connecting rod 2 be connected with equalizer bar 1 two ends is connected with the two ends of crossbeam 3 respectively by the second syndeton;
C, startup hanging device 6, slowly promote crossbeam 3 until crossbeam 3 contacts with the bottom surface at precast concrete box-beam 5 two ends, braking hanging device 6.
D, the hanging device 6 started on any one end of precast concrete box-beam 5, the position of adjustment precast concrete box-beam 5, makes solidifying native prefabricated case beam 5 keep horizontal level, braking hanging device 6.
E, start hanging device 6 on precast concrete box-beam 5 two ends, and the hoisting velocity of hanging device 6 on precast concrete box-beam 5 two ends is identical simultaneously; Precast concrete box-beam 5 is winched to above bridge pier, braking hanging device 6.
F, by the position of manual adjustment precast concrete box-beam 5 above bridge pier, precast concrete box-beam 5 two ends are all positioned at directly over bridge pier; Described bridge pier side is provided with gripper shoe, starts hanging device 6 and slowly reduces precast concrete box-beam 5, and in the gripper shoe making crossbeam 3 be positioned at bridge pier and the two ends of precast concrete box-beam 5 are dropped on bridge pier, are arranged on bridge pier by precast concrete box-beam 5;
G, crossbeam 3 and connecting rod 2 are split, start hanging device 6, hanging device 6 promotes connecting rod 2 and equalizer bar 1, makes connecting rod 2 depart from precast concrete box-beam 5.
H, crossbeam 3, connecting rod 2 and equalizer bar 1 are hung go back to ground.
Above-mentioned precast concrete box-beam hanging method, in step by being connected with connecting rod 2 by equalizer bar 1, equalizer bar 1 is connected with hanging device 6, completes the connection between hanging apparatus and hanging device 6.In stepb precast concrete box-beam 5 is arranged on crossbeam 3, achieves the installation of precast concrete box-beam 5 and hanging device.In step C, start hanging device 6 makes precast concrete box-beam 5 contact with crossbeam 3, for regulating the position of precast concrete box-beam 5 ready.Achieve in step D and the position of precast concrete box-beam 5 is adjusted.In step e, realize precast concrete box-beam 5 to rise to above bridge pier.Location and the installation of precast concrete box-beam 5 is achieved in step F.Remove in step G and be arranged on hanging apparatus on precast concrete box-beam 5.Hanging apparatus hung go back to ground in step H to complete and once lift, hanging apparatus can be reused and repeat the lifting that above-mentioned steps completes precast concrete box-beam 5 next time.
In stepb the connecting rod 2 be connected with equalizer bar 1 two ends is connected with the two ends of crossbeam 3 respectively by the second syndeton; When described precast concrete box-beam 5 has hole for hoist 51, the two ends of described crossbeam 3 are positioned at immediately below hole for hoist 51, the connecting rod 2 be connected is passed hole for hoist 51, and be connected with the two ends of crossbeam 3 respectively by the second syndeton with equalizer bar 1 two ends.The second described syndeton adopts removable syndeton.Therefore guarantee is after precast concrete box-beam 5 has lifted, and the connecting rod 2 through the hole for hoist 51 on precast concrete box-beam 5 can be removed.
Above-mentioned precast concrete box-beam hanging method, because the precast concrete box-beam hanging apparatus adopted is made up of stiffener, therefore in the process of lifting, hanging apparatus is out of shape less under under tension effect.In whole hoisting process, precast concrete box-beam 5 is positioned at above crossbeam 3, and crossbeam 3 only contacts with the bottom surface of precast concrete box-beam 5.Can not there is moderate finite deformation when under tension in crossbeam 3, be expressed to the side of precast concrete box-beam 5, cause damage to it.In this method, synchronous hoist controlling is carried out to hanging device 6 simultaneously, can ensure that precast concrete box-beam 5 is in level in hoisting process, be conducive to precast concrete box-beam 5 in the location at lifting initial stage and installation location.
In order to make the connection of connecting rod 2 and equalizer bar 1, and connecting rod 2 and crossbeam 3 is easy to connect, quick, stable.Can be realized by the first syndeton reasonable in design and the second syndeton.Wherein a kind of preferred embodiment as shown in Figure 5, and the first syndeton comprises upper pin 41, and described connecting rod 2 two ends are provided with pin-and-hole 22, and described equalizer bar 1 is provided with pin-and-hole; Described second syndeton, comprises lower bearing pin 42, and described crossbeam 3 is provided with lower pin-and-hole 34; In steps A, equalizer bar 1 is connected with hanging device 6 by lifting bearing pin 43, is passed pin-and-hole 22 and is coordinated with the upper pin-and-hole of equalizer bar 1, connect connecting rod 2 and equalizer bar 1 by upper pin 41; In stepb by the pin-and-hole 22 of lower bearing pin 42 through connecting rod 2, and coordinate with the lower pin-and-hole 34 of crossbeam 3, connect connecting rod 2 and crossbeam 3.Be connected by upper pin 41 between connecting rod 2 with equalizer bar 1, be connected by lower bearing pin 42 between connecting rod 2 with crossbeam 3, thus assembling process in rapid and convenient.Adopt its good stability that is rigidly connected simultaneously, the stability of hanging device in hoisting process can be ensured.
In order to save the production material of equalizer bar 1, alleviating the weight of equalizer bar 1 self simultaneously, in order to alleviate the weight of crossbeam 3 self, alleviating lifting load.As Fig. 3,4 and Fig. 6 shown in, equalizer bar 1 is hollow structure; State on equalizer bar 1 and be provided with hoisting structure, the soffit at described equalizer bar 1 two ends is provided with installing hole 11, described upper pin-and-hole runs through the two sides of equalizer bar 1, and being positioned at above installing hole 11, described hoisting structure, comprises lifting bearing pin 43, described equalizer bar 1 upper surface center is to being arranged with hole for hoist 12, described equalizer bar 1 is provided with through hole 13, and described through hole 13 runs through the two sides of equalizer bar 1 and is positioned at below hole for hoist 12, and described lifting bearing pin 43 coordinates with through hole 13; Described crossbeam 3 is hollow structure, described crossbeam 3 two ends are provided with runs through the upper surface 35a of crossbeam 3 and the connecting hole 31 of soffit 35b, ribs 32 is provided with between the upper surface 35a of described crossbeam 3 and soffit 35b, and ribs 32 is positioned at crossbeam 3 inside, described connecting hole 31 is between ribs 32 and the inner side of crossbeam 3 end face, described crossbeam 3 inside is provided with limiting plate 33, and described ribs 32 is between limiting plate 33 and connecting hole 31; In steps A, equalizer bar 1 is connected with hanging device 6 by lifting bearing pin 43, simultaneously by connecting rod 2 one end and installing hole 11 adaptation, connects connecting rod 2 and equalizer bar 1 by upper pin 41; In stepb by one end of connecting rod 2 and connecting hole 31 adaptation, connect connecting rod 2 and crossbeam 3 by lower bearing pin 42; Described lower bearing pin 42 one end and limiting plate 33 are close to, and the other end extends the end face of crossbeam 3.
By under ensureing that the intensity of equalizer bar 1 meets the prerequisite of precast concrete box-beam lifting requirements, equalizer bar 1 is arranged to hollow structure.Thus the manufactured materials of equalizer bar 1 can be reduced while alleviating equalizer bar 1 own wt, reduce cost of manufacture.On equalizer bar 1, be provided with installing hole 11 simultaneously, connecting rod 2 one end is arranged in installing hole 11 in step, make whole hanging apparatus structure compacter, and certain positioning action played to connecting rod 2, make connecting rod 2 lifting process in can not relatively and equalizer bar 1 slide.Improve the stability of whole hanging apparatus.Described hoisting structure, comprises lifting bearing pin 43, is connected with between hanging device by lifting bearing pin 43, quick and convenient, is conducive to increasing work efficiency.Simultaneously owing to being provided with the connecting hole 31 of upper surface and the soffit running through crossbeam 3 at crossbeam 3 two ends, in stepb one end of connecting rod 2 is arranged in connecting hole 31, therefore the effect can playing location to connecting rod 2 makes connecting rod 2 can not slide when lifting, connecting rod 2 remains unchanged with the position relationship of crossbeam 3, thus makes whole hanging apparatus stability better.
In order to make connecting rod 2 reliable with the stable connection of crossbeam 3, ensure the safety of hoisting process.As shown in Figure 8, second syndeton, also comprise screw 45 and clamping plate 44, described lower bearing pin 42 one end is provided with groove, further comprising the steps of between described step B and step C, the end face of crossbeam 3 installs clamping plate 44, by one end of screw 45 strap 44, by adaptive for the groove of clamping plate 44 other end and lower bearing pin 42.Because one end of clamping plate 44 is fixed, adaptive by the groove on the other end of clamping plate 44 and lower bearing pin 42, lower bearing pin 42 is fixed, makes lower bearing pin 42 play can not occur in the process of lifting, therefore ensure that stability and the reliability of connection.
In order to increase precast concrete box-beam 5 be placed on crossbeam 3 time, the frictional force between precast concrete box-beam 5 and crossbeam 3, prevents concrete prefabricated case 5 from sliding.Further comprising the steps of between steps A and step B, at crossbeam 3 upper surface, anti-skid protection pad 7 is set.At crossbeam 3 upper surface, anti-skid protection pad 7 is being set, when precast concrete box-beam 5 can be made to be placed on crossbeam 3, prefabricated case beam 5 is positioned on the anti-skid protection pad 7 of crossbeam 3 upper surface, the frictional force between crossbeam 3 and precast concrete box-beam 5 can be increased by anti-skid protection pad 7, thus can prevent precast concrete box-beam 5 from sliding in the process of lifting.
In order to make the connection of connecting rod 2 with crossbeam 3 and the stable connection of connecting rod 2 and equalizer bar 1, firmly.Reasonably can arrange the position of connecting rod 2, crossbeam 3 and equalizer bar 1 simultaneously.Described connecting rod 2 two ends are provided with wing plate 21, and described pin-and-hole 22 is arranged on wing plate 21 center; Wing plate 21 spatial vertical of described connecting rod 2 one end wing plate 21 and connecting rod 2 other end, in step by adaptive with installing hole 11 for the wing plate 21 of connecting rod 2 one end, the wing plate 21 of the one end do not connected by connecting rod 2 is in stepb adaptive with connecting hole 31.Because all there is gap between wing plate 21 and installing hole 11 and between wing plate 21 and connecting hole 31, when being subject to unbalanced External Force Acting, a certain amount of play can be there is.Due to wing plate 21 spatial vertical at connecting rod 2 two ends, therefore the movement of connecting rod 2 on equalizer bar 3 and connecting rod 2 moving direction on crossbeam 3 is mutually vertical, can form the effect of location restriction mutually.The connecting rod 2 of this structure can reduce the length of crossbeam 3 by favorably situated installation site simultaneously, thus saves the production material of crossbeam 3, reduces costs.Whole hoisting equipment structure can be made compacter, stability is better simultaneously.The shape of described wing plate can be U-shaped, low to the danger damaged of human body in the less handling process of U-shaped wing plate corner angle, and be convenient to carrying and artificial installation, safety is good.
When lifting precast concrete box-beam 5, hanging device 6 can be mobile crane or tower crane.Mobile crane is marched into the arena fast, and transition is convenient, but hoisting height is limited.Tower crane can carry out the lifting of high height, but its construction time is long, implements the long in time limit of lifting construction.Therefore rational hanging device can be selected according to concrete construction environment.
Lift after installation work completes at precast concrete box-beam 5, need hanging apparatus to hang go back to ground.Hanging apparatus, after precast concrete box-beam 5 installation, can be dismantled from solidifying native prefabricated case beam 5.The connecting rod 2 of hanging apparatus and equalizer bar 1 depart from solidifying native prefabricated case beam 5 as a whole under the effect of hanging device 7.The crossbeam 3 of hanging apparatus can hang go back to ground separately, also can lift by crane go back to ground with connecting rod 2 and equalizer bar 1 one.By using wire rope or suspender belt, crossbeam 3 can be connected with connecting rod 2 and/or equalizer bar 1, hang go back to ground as a whole.Also by wire rope or suspender belt crossbeam 3 can be connected with hanging device 6 and hang go back to ground separately.
Embodiment
As shown in Fig. 2 to Fig. 8, precast concrete box-beam hanging apparatus, comprise equalizer bar 1, connecting rod 2, crossbeam 3, described equalizer bar 1 two ends are connected with connecting rod 2 by the first syndeton, described crossbeam 3 two ends are connected with connecting rod 2 by the second syndeton, and described connecting rod 2 is between equalizer bar 1 and crossbeam 3.Described equalizer bar 1 is provided with hoisting structure.Described first syndeton, comprises upper pin 41, and described connecting rod 2 two ends are provided with pin-and-hole 22, and described equalizer bar 1 is provided with pin-and-hole; Described second syndeton, comprises lower bearing pin 42, and described crossbeam 3 is provided with lower pin-and-hole 34; Described upper pin 41 passes the pin-and-hole 22 of connecting rod 2 one end and coordinates with the upper pin-and-hole on equalizer bar 1, and described lower bearing pin 42 passes the pin-and-hole 22 of connecting rod 2 other end and coordinates with the lower pin-and-hole 34 on crossbeam 3.Described equalizer bar 1 is hollow structure; The soffit at described equalizer bar 1 two ends is provided with installing hole 11, and described upper pin-and-hole runs through the two sides of equalizer bar 1, and is positioned at above installing hole 11, and described connecting rod 2 one end is arranged in installing hole 11, and described upper pin 41 through pin-and-hole 22, and coordinates with upper pin-and-hole; Described hoisting structure, comprise lifting bearing pin 43, described equalizer bar 1 upper surface center, to being arranged with hole for hoist 12, described equalizer bar 1 is provided with through hole 13, described through hole 13 runs through the two sides of equalizer bar 1 and is positioned at below hole for hoist 12, and described lifting bearing pin 43 coordinates with through hole 13.Described lifting bearing pin 43 coordinates with through hole 13.Described crossbeam 3 is hollow structure, described crossbeam 3 two ends are provided with runs through the upper surface 35a of crossbeam 3 and the connecting hole 31 of soffit 35b, the inner chamber of described crossbeam 3 is provided with ribs 32 and limiting plate 33, described connecting hole 31 is between ribs 32 and the inwall of crossbeam 3 end, described ribs 32 is between limiting plate 33 and connecting hole 31, described lower pin-and-hole 34 is arranged on crossbeam 3 both ends of the surface center, and run through end face and the ribs 32 of crossbeam 3, one end of described connecting rod 2 is arranged in connecting hole 31, described lower bearing pin 42 one end and limiting plate 33 are close to, the other end extends the end face of crossbeam 3.Described second syndeton, also comprises screw 45 and clamping plate 44, and described lower bearing pin 42 one end is provided with groove, and described clamping plate 44 are arranged on the end face of crossbeam 3, and described clamping plate 44 one end is fixed by screw 45, and the groove of the other end and lower bearing pin 42 is adaptive.Described connecting rod 2 two ends are provided with U-shaped wing plate 21 centered by connecting rod 2, and described pin-and-hole 22 is arranged on wing plate 21 center; Described connecting rod 2 one end wing plate 21 is mutually vertical with the wing plate 21 of connecting rod 2 other end; The wing plate 21 of described connecting rod 2 one end is adaptive with installing hole 11, and the wing plate 21 of the other end is adaptive with connecting hole 31.Described crossbeam 3 upper surface is provided with anti-skid protection pad 7.
Precast concrete box-beam hanging apparatus described in embodiment is adopted to comprise the following steps the method that precast concrete box-beam 5 lifts:
A, equalizer bar 1 two ends connect connecting rod 2, by one end of connecting rod 2 and installing hole 11 adaptation, pass pin-and-hole 22 by upper pin 41 and coordinate with the upper pin-and-hole of equalizer bar 1, connecting equalizer bar 1 and connecting rod 2, simultaneously by lifting bearing pin 43, equalizer bar 1 is connected with hanging device 6.
B, place crossbeam 3 respectively in the bottom surface at precast concrete box-beam 5 two ends, described crossbeam 3 upper surface is provided with anti-skid protection pad 7, described precast concrete box-beam 5 has hole for hoist 51, the two ends of described crossbeam 3 are positioned at immediately below hole for hoist 51, the connecting rod 2 be connected with equalizer bar 1 two ends is passed hole for hoist 51, the one end do not connected by connecting rod 2 on equalizer bar 1 by the pin-and-hole 22 of lower bearing pin 42 through connecting rod 2, and coordinates with the lower pin-and-hole 34 of crossbeam 3, connects equalizer bar 1 and crossbeam 3.The end face of crossbeam 3 installs clamping plate 44, by one end of screw 45 strap 44, by adaptive for the groove of clamping plate 44 other end and lower bearing pin 42.
C, startup hanging device 6, slowly promote crossbeam 3 until crossbeam 3 contacts with the bottom surface at precast concrete box-beam 5 two ends, braking hanging device 6;
D, the hanging device 6 started on any one end of precast concrete box-beam 5, the position of adjustment precast concrete box-beam 5, makes solidifying native prefabricated case beam 5 keep horizontal level, braking hanging device 6;
E, start hanging device 6 on precast concrete box-beam 5 two ends, and the hoisting velocity of hanging device 6 on precast concrete box-beam 5 two ends is identical simultaneously; Precast concrete box-beam 5 is winched to above bridge pier, braking hanging device 6;
F, by the position of manual adjustment precast concrete box-beam 5 above bridge pier, precast concrete box-beam 5 two ends are all positioned at directly over bridge pier; Described bridge pier side is provided with gripper shoe, starts hanging device 6 and slowly reduces precast concrete box-beam 5, and in the gripper shoe making crossbeam 3 be positioned at bridge pier and the two ends of precast concrete box-beam 5 are dropped on bridge pier, are arranged on bridge pier by precast concrete box-beam 5;
G, crossbeam 3 and connecting rod 2 are split, start hanging device 6, hanging device 6 promotes connecting rod 2 and equalizer bar 1, makes connecting rod 2 detach hole for hoist 51;
Crossbeam 3 is connected for entirety hangs go back to ground with connecting rod 2 and/or equalizer bar 1 by H, use wire rope or suspender belt; Or to be connected with hanging device 6 by wire rope or suspender belt by crossbeam 3 and to hang go back to ground separately, connecting rod 2 and equalizer bar 1 hang go back to ground as a whole.
Hanging device described in above-mentioned steps adopts mobile crane or tower crane.
In the process that precast concrete box-beam is lifted, first in the bottom surface at precast concrete box-beam two ends, crossbeam 3 is installed, anti-skid protection pad 7 is set between precast concrete box-beam and crossbeam 3 simultaneously.Then be connected with crossbeam 3 by connecting rod 2, the upper end of connecting rod 2 connects equalizer bar 1, is connected with hanging device by the lifting bearing pin 43 on equalizer bar 1.Start hanging device, hanging device promotes equalizer bar 1, and equalizer bar 1 passes through connecting rod 2 by pull transfer on crossbeam 3, and crossbeam 3 drives precast concrete box-beam to rise.Because crossbeam 3 is stiffener, extruding can not be formed to the precast concrete box-beam 5 be arranged on crossbeam 3 when being subject to connecting rod 2 pulling force upwards in the process lifted, therefore can not cause the damage of precast concrete box-beam 5.Owing to arranging anti-skid protection pad 7 between precast concrete box-beam 5 and crossbeam 3, therefore, it is possible to ensure that whole Lift-on/Lift-off System stability is better in hoisting process, sliding not easily appears in precast concrete box-beam.In order to make precast concrete box-beam 2 that level can be kept to rise in the process of lifting, precast concrete box-beam 5 being adjusted to horizontal level, synchronous lifting is carried out to hanging device 6.Thus the crossbeam 3 at precast concrete box-beam 5 two ends that can make rises according to identical speed, ensure the stability of precast concrete box-beam 5 in hoisting process.This hanging device carrying out after lifting completes to precast concrete box-beam 5, owing to adopting pinned connection between connecting rod 2 and crossbeam 3, therefore convenient disassembly.Only need extract lower bearing pin 42, crossbeam 3 just can be made to be separated with connecting rod 2, then by hanging device 6, connecting rod 2 and equalizer bar 1 be sling.Can be coupled together with connecting rod 2 and equalizer bar 1 by crossbeam 3 after partition by wire rope, entirety hangs go back to ground simultaneously.Then the lifting carried out next time is re-used.
Precast concrete box-beam hanging apparatus of the present invention in sum, compact conformation, good stability, and the damage to precast concrete box-beam 5 in hoisting process can be reduced.This hanging apparatus self degree of wear in hoisting process is little simultaneously, can repeatedly use, long service life.Precast concrete box-beam hanging method of the present invention, simple to operate, can realize precast concrete box-beam to be horizontal all the time in the process of lifting, be convenient to the location of precast concrete box-beam 5 in lifting and installation process, hoisting process safety is higher.
Claims (6)
1. precast concrete box-beam hanging apparatus, it is characterized in that: comprise equalizer bar (1), connecting rod (2), crossbeam (3), described equalizer bar (1) two ends are connected with connecting rod (2) by the first syndeton, described crossbeam (3) two ends are connected with connecting rod (2) by the second syndeton, and described connecting rod (2) is positioned between equalizer bar (1) and crossbeam (3);
Described connecting rod (2) two ends are provided with pin-and-hole (22), and described first syndeton comprises upper pin (41), and described equalizer bar (1) two ends are provided with pin-and-hole; Described second syndeton comprises lower bearing pin (42), and described crossbeam (3) two ends are provided with lower pin-and-hole (34); Described upper pin (41) through connecting rod (2) one end pin-and-hole (22) and coordinate with the upper pin-and-hole on equalizer bar (1), described lower bearing pin (42) through connecting rod (2) other end pin-and-hole (22) and coordinate with the lower pin-and-hole (34) on crossbeam (3);
(1) is provided with hoisting structure to described equalizer bar, described equalizer bar (1) is hollow structure, the soffit at described equalizer bar (1) two ends is provided with installing hole (11), described upper pin-and-hole runs through the two sides of equalizer bar (1) and is positioned at installing hole (11) top, described connecting rod (2) one end is arranged in installing hole (11), described hoisting structure, comprise lifting bearing pin (43), described equalizer bar (1) upper surface center is to being arranged with hole for hoist (12), described equalizer bar (1) is provided with through hole (13), described through hole (13) runs through the two sides of equalizer bar (1) and is positioned at hole for hoist (12) below, described lifting bearing pin (43) coordinates with through hole (13), described crossbeam (3) is hollow structure, described crossbeam (3) two ends are provided with the connecting hole (31) of upper surface (35a) and the soffit (35b) running through crossbeam (3), the inner chamber of described crossbeam (3) is provided with ribs (32) and limiting plate (33), described connecting hole (31) is positioned between the inwall of ribs (32) and crossbeam (3) end, described ribs (32) is positioned between limiting plate (33) and connecting hole (31), described lower pin-and-hole (34) is arranged on crossbeam (3) both ends of the surface center, and run through end face and the ribs (32) of crossbeam (3), one end of described connecting rod (2) is inserted in connecting hole (31), described lower bearing pin (42) one end and limiting plate (33) are close to, the other end extends the end face of crossbeam (3).
2. precast concrete box-beam hanging apparatus as claimed in claim 1, it is characterized in that: described second syndeton, also comprise screw (45) and clamping plate (44), described lower bearing pin (42) one end is provided with groove, described clamping plate (44) are arranged on the end face of crossbeam (3), described clamping plate (44) one end is fixed by screw (45), and the groove of the other end and lower bearing pin (42) is adaptive.
3. precast concrete box-beam hanging apparatus as claimed in claim 1, it is characterized in that: described connecting rod (2) two ends are provided with wing plate (21), described pin-and-hole (22) is arranged on wing plate (21) center; The wing plate (21) of described connecting rod (2) one end and wing plate (21) spatial vertical of connecting rod (2) other end, the wing plate (21) of described connecting rod (2) one end is adaptive with installing hole (11), and the wing plate (21) of the other end is adaptive with connecting hole (31).
4. adopt the precast concrete box-beam hanging method of precast concrete box-beam hanging apparatus according to claim 1, it is characterized in that, comprise the following steps:
A, by the first syndeton equalizer bar (1) two ends connect connecting rod (2), equalizer bar (1) is connected with hanging device (6) simultaneously;
B, place crossbeam (3) respectively in the bottom surface at precast concrete box-beam (5) two ends, the connecting rod (2) be connected with equalizer bar (1) two ends is connected with the two ends of crossbeam (3) respectively by the second syndeton;
C, startup hanging device (6), slowly promote crossbeam (3) until crossbeam (3) contacts with the bottom surface at precast concrete box-beam (5) two ends, braking hanging device (6);
D, the hanging device (6) started on any one end of precast concrete box-beam (5), the position of adjustment precast concrete box-beam (5), solidifying native prefabricated case beam (5) is made to keep horizontal level, braking hanging device (6);
E, start hanging device (6) on precast concrete box-beam (5) two ends, and the hoisting velocity of hanging device (6) on precast concrete box-beam (5) two ends is identical simultaneously; Precast concrete box-beam (5) is winched to above bridge pier, braking hanging device (6);
F, by manual adjustment precast concrete box-beam (5) position above bridge pier, precast concrete box-beam (5) two ends are all positioned at directly over bridge pier; Described bridge pier side is provided with gripper shoe, start hanging device (6) and slowly reduce precast concrete box-beam (5), in the gripper shoe making crossbeam (3) be positioned at bridge pier and the two ends of precast concrete box-beam (5) are dropped on bridge pier, are arranged on bridge pier by precast concrete box-beam (5);
G, crossbeam (3) and connecting rod (2) to be split, start hanging device (6), hanging device (6) promotes connecting rod (2) and equalizer bar (1), makes connecting rod (2) depart from precast concrete box-beam (5);
H, crossbeam (3), connecting rod (2) and equalizer bar (1) are hung go back to ground.
5. precast concrete box-beam hanging method as claimed in claim 4, it is characterized in that: described second syndeton also comprises screw (45) and clamping plate (44), described lower bearing pin (42) one end is provided with groove, further comprising the steps of between described step B and step C, the end face of crossbeam (3) is installed clamping plate (44), by one end of screw (45) strap (44), by adaptive for the groove of clamping plate (44) other end and lower bearing pin (42).
6. the precast concrete box-beam hanging method as described in claim 4 or 5, is characterized in that: further comprising the steps of between steps A and step B, arranges anti-skid protection pad (7) at crossbeam (3) upper surface.
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| CN201310396270.4A CN103437298B (en) | 2013-09-04 | 2013-09-04 | Precast concrete box-beam hanging method and hanging apparatus |
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| CN201310396270.4A CN103437298B (en) | 2013-09-04 | 2013-09-04 | Precast concrete box-beam hanging method and hanging apparatus |
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| CN108252539A (en) * | 2018-03-22 | 2018-07-06 | 上海言诺建筑材料有限公司 | Hoisting structure and hanging device |
| CN109019300B (en) * | 2018-09-13 | 2020-03-27 | 中联重科股份有限公司 | Lifting appliance for lifting crane boom |
| CN110306389B (en) * | 2018-12-29 | 2024-03-26 | 常熟市奥斯维车辆科技有限公司 | Lifting combined tool for track traffic prefabricated road bed board |
| CN109914262B (en) * | 2019-04-09 | 2020-09-04 | 中铁十八局集团第二工程有限公司 | Construction method for hoisting steel truss arch member by utilizing high-low carrying pole beam through narrow closure opening |
| CN110775824A (en) * | 2019-09-19 | 2020-02-11 | 广州机施建设集团有限公司 | Synchronous hoisting method, mechanism and system of double cranes |
| CN110512532A (en) * | 2019-09-25 | 2019-11-29 | 中铁十六局集团有限公司 | A kind of hangar system for Bridge Erector of constructing by cross for precast segmental beam |
| CN112160249A (en) * | 2020-09-24 | 2021-01-01 | 中铁十一局集团第二工程有限公司 | Small-radius large-span bridge via hole construction method |
| CN113152306B (en) * | 2021-03-17 | 2022-12-20 | 中铁八局集团有限公司 | Small-radius large-gradient prefabricated T beam frame construction method |
| CN116142945B (en) * | 2023-04-17 | 2023-06-16 | 安徽数智建造研究院有限公司 | Auxiliary device for subway station roof construction |
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| JP2004210487A (en) * | 2003-01-06 | 2004-07-29 | Yuasa Kensetsu Kk | Concrete block lifting tool |
| CN101195460B (en) * | 2007-12-25 | 2010-06-16 | 中铁四局集团有限公司 | Large-scale girder bottom hoisting device and method thereof |
| CN202208595U (en) * | 2011-09-09 | 2012-05-02 | 江都市建材机械厂有限公司 | Special lifting appliance for PCCP (Pre-stressed Concrete Cylinder Pipe) processing |
| CN202466428U (en) * | 2012-03-14 | 2012-10-03 | 中国十九冶集团有限公司 | Structure for hoisting sections of precast box girder |
| CN203411911U (en) * | 2013-09-04 | 2014-01-29 | 中国十九冶集团有限公司 | Concrete precast box beam hoisting device |
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