CN211368405U - Bridge girder erection machine main beam structure for suspending bridge sections - Google Patents
Bridge girder erection machine main beam structure for suspending bridge sections Download PDFInfo
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- CN211368405U CN211368405U CN201921540243.9U CN201921540243U CN211368405U CN 211368405 U CN211368405 U CN 211368405U CN 201921540243 U CN201921540243 U CN 201921540243U CN 211368405 U CN211368405 U CN 211368405U
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Abstract
A bridge girder erection machine main girder structure for suspending bridge sections comprises a main girder, wherein a hole opening mechanism is arranged at the center of the bottom of the main girder, the lower part of the hole opening mechanism is connected with a carrying pole beam through finish-rolled twisted steel, and the carrying pole beam is connected with the bridge sections; the tapping mechanism comprises a top plate, a web plate and a bottom plate, wherein the top plate and the bottom plate are horizontally arranged at the top and the bottom of the web plate respectively, the web plate comprises a first web plate and a second web plate, and the first web plate and the second web plate are welded on the upper surface and the lower surface of a main beam bottom plate of the main beam respectively. A frame bridge crane girder structure for hanging bridge segment section, be provided with trompil mechanism in the bottom intermediate position of girder, the bridge segment section just can hang in girder bottom intermediate position, can reduce to hang in other positions and need the extra equipment weight who increases, can also make the girder balanced bear, optimize the atress situation of girder, simple structure, convenient the regulation, it is quick effective, application prospect is extensive.
Description
Technical Field
The utility model relates to a bridge crane girder technical field, concretely relates to bridge crane girder structure for hanging bridge segment section.
Background
With the high-speed development of national economy in China, the nation carries out vigorous investment and construction on large public facilities such as bridges, railways and the like, and accelerates the self development and research of the road and bridge mechanical industry in China. In more than ten years, the design and production industry of bridge erecting machines in China is different from military projects, and a plurality of road, railway and bridge erecting projects are successfully completed, so that the great effect is achieved. Functionally, the bridge girder erection machine is used for hoisting prefabricated reinforced concrete or prestressed concrete beam pieces or beam sections to a preset position, and the bridge girder erection machine is influenced by factors in various aspects such as site topography, beam piece weight, span of adjacent piers and the like, so that the difficulty in design and construction of the bridge girder erection machine is caused. Aiming at different working environments, the bridge girder erection machine meeting corresponding production conditions is needed, which is a great challenge in the industry and enables various bridge girder erection machines to be transported at the same time.
The main girder of a bridge girder erection machine is also commonly referred to as a main girder. The main beam structure of the bridge girder erection machine is a main bearing component of the bridge girder erection machine and is also the most important component of the bridge girder erection machine. The performance of the bridge girder erection machine directly determines whether the construction quality and the safety of the bridge girder erection machine are good or not. With the development of bridge girder erection machines towards heavy loads, under heavy and complicated working conditions, the main girder structure of the traditional bridge girder erection machine cannot meet the current requirements, and the improvement of the main girder structure is very necessary. The structure of the main beam is specially designed according to the requirement of the field condition, and factors in various aspects such as economy, manufacture and safety are considered, so that the main beam can be flexibly selected and used.
Chinese patent application No. CN201910018267.6 discloses a main beam structure and a main beam of a streamlined multi-box beam, providing a streamlined main beam structure, which improves the wind resistance stability, and does not improve the balanced bearing of the main beam.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a bridge girder erection machine girder structure for hanging bridge segment section, bottom intermediate position at the girder is provided with trompil mechanism, can let the girder pass through shoulder pole roof beam and connect bridge segment section, bridge segment section just can hang girder bottom intermediate position like this, can reduce and hang other positions and need additionally increased equipment weight, can also make the girder balanced bear, can optimize the atress situation of girder, carry out reinforcement mechanism through the relevant position at trompil mechanism, the intensity of trompil mechanism has been strengthened, it is stronger to make it bear the load ability, moreover, the steam generator is simple in structure, convenient regulation, and is quick effective, and application prospect is extensive.
The technical scheme is as follows: a bridge girder erection machine main girder structure for suspending bridge sections comprises a main girder, wherein a hole opening mechanism is arranged at the center of the bottom of the main girder, the lower part of the hole opening mechanism is connected with a carrying pole beam through finish-rolled twisted steel, and the carrying pole beam is connected with the bridge sections; the tapping mechanism comprises a top plate, a web plate and a bottom plate, wherein the top plate and the bottom plate are horizontally arranged at the top and the bottom of the web plate respectively, the web plate comprises a first web plate and a second web plate, and the first web plate and the second web plate are welded on the upper surface and the lower surface of a main beam bottom plate of the main beam respectively.
A bridge girder erection machine girder structure for hanging bridge segment section, be provided with trompil mechanism in the bottom intermediate position of girder, pass the trompil mechanism with finish rolling twisted steel, can let the girder pass through the shoulder pole roof beam and connect bridge segment section.
Further, in the main beam structure of the bridge girder erection machine for suspending the bridge segment, the top plate and the bottom plate are provided with a plurality of openings, and the finish-rolled twisted steel bar penetrates through the openings to be connected with the shoulder pole beam.
Further, in the above main beam structure of the bridge girder erection machine for suspending the bridge segment, the hole opening mechanism is provided with a reinforcing mechanism.
Through carrying out the reinforcement mechanism in tapping mechanism's relevant position, strengthened tapping mechanism's intensity, make it bear the load ability stronger.
Further, in the main beam structure of the bridge girder erection machine for suspending the bridge segment, the reinforcing mechanism is an internal rib plate, and the internal rib plate is arranged inside the web plate.
The strength of the reinforcing mechanism is further enhanced by arranging the internal rib plate in the web plate, so that the tapping mechanism has stronger load bearing capacity.
Further, in the main beam structure of the bridge girder erection machine for suspending the bridge section, the internal rib plate comprises a first internal rib plate and a second internal rib plate; the first internal rib plate is arranged between the first webs, and the second internal rib plate is arranged between the second webs.
Further, in the main beam structure of the bridge girder erection machine for suspending the bridge sections, the number of the main beams is 2, and the main beams are respectively arranged at two ends of the upper part of the shoulder pole beam.
Through the design, the bridge sections can be suspended in the middle of the bottom of the main beam, the additional equipment weight required for suspending the bridge sections in other positions is reduced, the main beam can be uniformly supported, and the stress condition of the main beam is optimized.
The utility model has the advantages that:
(1) the structure is simple, the adjustment is convenient, the middle position of the bottom of the main beam is provided with the tapping mechanism, 2 main beams are respectively arranged at two ends of the upper part of the carrying pole beam, the finish rolling twisted steel bar passes through the tapping mechanism, and the main beam is connected with the bridge segment through the carrying pole beam, so that the bridge segment can be hung at the middle position of the bottom of the main beam, the extra increased equipment weight needed by hanging at other positions can be reduced, the main beam can be enabled to bear in a balanced manner, the stress condition of the main beam is optimized, various requirements in the process of hanging the bridge segment are met, the working efficiency is improved, and the application prospect is wide;
(2) through carrying out the reinforcement mechanism in tapping mechanism's relevant position, strengthened tapping mechanism's intensity, inside gusset makes it bear the load capacity stronger, can also make the structure compacter, has increased life.
Drawings
Fig. 1 is a front view of the whole structure of a main beam structure of a bridge girder erection machine for suspending bridge sections according to the present invention;
fig. 2 is a front view of the tapping mechanism and the reinforcing mechanism of the main beam structure of the bridge girder erection machine for suspending bridge sections according to the present invention;
fig. 3 is a top view of the tapping mechanism and the reinforcing mechanism of the main beam structure of the bridge girder erection machine for suspending bridge sections according to the present invention;
in the figure: the main beam comprises a main beam 1, a hole opening mechanism 11, a top plate 111, a web plate 112, a first web plate 1121, a second web plate 1122, a bottom plate 113, a hole 114, a reinforcing mechanism 12, an internal rib plate 121, a first internal rib plate 1211, a second internal rib plate 1212, finish-rolled twisted steel bars 4, a main beam bottom plate 13, a shoulder pole beam 2, a bridge section 3 and a lifting appliance.
Detailed Description
The invention will be further elucidated with reference to the accompanying figures 1-3 and the specific embodiments.
The main beam structure of the bridge girder erection machine for suspending bridge sections, which has the structure shown in fig. 1 and 2, comprises a main beam 1, wherein a hole opening mechanism 11 is arranged at the center of the bottom of the main beam 1, the lower part of the hole opening mechanism 11 is connected with a carrying pole beam 2 through a finish rolling threaded steel bar 4, and the carrying pole beam 2 is connected with a bridge section 3; the hole opening mechanism 11 includes a top plate 111, a web 112, and a bottom plate 113, the top plate 111 and the bottom plate 113 are respectively horizontally disposed on the top and the bottom of the web 112, the web 112 includes a first web 1121 and a second web 1122, and the first web 1121 and the second web 1122 are respectively welded to the upper and lower surfaces of the main beam bottom plate 13 of the main beam 1.
As shown in fig. 1 and 3, the top plate 111 and the bottom plate 113 are provided with a plurality of openings 114, and the finish-rolled twisted steel 4 is connected to the shoulder pole beam 2 through the openings 114.
As shown in fig. 2 and 3, the hole opening mechanism 11 is provided with a reinforcing mechanism 12. The reinforcing mechanism 12 is an internal rib plate 121, and the internal rib plate 121 is arranged inside the web 112. The internal rib plates 121 comprise a first internal rib plate 1211 and a second internal rib plate 1212; the first internal rib 1211 is disposed between the first webs 1121, and the second internal rib 1212 is disposed between the second webs 1122.
As shown in fig. 1, the number of the main beams 1 is 2, and the main beams 1 are respectively provided at both ends of the upper portion of the shoulder pole beam 2.
Examples
The structural basis is as shown in FIGS. 1 to 3.
A bridge crane girder construction for hanging bridge girder segment section, 2 girder 1 sets up at 2 upper portion both ends of shoulder pole roof beam, the bottom intermediate position of girder 1 is provided with trompil mechanism 11, pass the trompil 114 of trompil mechanism with finish rolling twisted steel 4, girder 1 connects bridge segment 3 through shoulder pole roof beam 2, at this moment, bridge segment 2 just in time hangs in girder 1 bottom intermediate position, reduce and hang in other positions and need additionally increased equipment weight, can also make 1 balanced bears of girder, the atress situation of girder 1 has been optimized. Moreover, the inner rib plate 121 enables the loading bearing capacity of the tapping mechanism 11 to be stronger, enables the structure of the tapping mechanism 11 to be more compact, and prolongs the service life of the tapping mechanism
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, the embodiments of the present invention can be arbitrarily combined with each other, and the same shall be regarded as the disclosure of the present invention as long as the idea of the present invention is not violated.
Claims (6)
1. A bridge girder erection machine main girder structure for suspending bridge sections is characterized by comprising a main girder (1), wherein a hole opening mechanism (11) is arranged at the center of the bottom of the main girder (1), the lower part of the hole opening mechanism (11) is connected with a carrying pole beam (2) through a finish rolling threaded steel bar (4), and the carrying pole beam (2) is connected with the bridge sections (3); the tapping mechanism (11) comprises a top plate (111), a web plate (112) and a bottom plate (113), the top plate (111) and the bottom plate (113) are respectively horizontally arranged at the top and the bottom of the web plate (112), the web plate (112) comprises a first web plate (1121) and a second web plate (1122), and the first web plate (1121) and the second web plate (1122) are respectively welded to the upper surface and the lower surface of a main beam bottom plate (13) of the main beam (1).
2. The main girder structure of a bridge girder erection machine for suspending bridge sections according to claim 1, wherein the top plate (111) and the bottom plate (113) are provided with a plurality of openings (114), and the finish-rolled twisted steel (4) is connected to the spreader beam (2) through the openings (114).
3. A bridge girder construction according to claim 2, wherein the opening means (11) is provided with a reinforcing means (12).
4. A bridge girder construction according to claim 3, wherein the stiffening means (12) is an internal web (121), the internal web (121) being arranged inside the web (112).
5. A bridge girder construction according to claim 4, wherein the internal rib (121) comprises a first internal rib (1211) and a second internal rib (1212); the first internal rib (1211) is arranged between the first webs (1121), and the second internal rib (1212) is arranged between the second webs (1122).
6. A main beam structure of a bridge girder erection machine for suspending bridge sections according to claim 1, wherein the number of the main beams (1) is 2, and the main beams (1) are respectively provided at both ends of the upper portion of the shoulder pole beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540243.9U CN211368405U (en) | 2019-09-17 | 2019-09-17 | Bridge girder erection machine main beam structure for suspending bridge sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540243.9U CN211368405U (en) | 2019-09-17 | 2019-09-17 | Bridge girder erection machine main beam structure for suspending bridge sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211368405U true CN211368405U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921540243.9U Active CN211368405U (en) | 2019-09-17 | 2019-09-17 | Bridge girder erection machine main beam structure for suspending bridge sections |
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| CN (1) | CN211368405U (en) |
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