CN215714692U - Lifting device for construction of cable-stayed bridge - Google Patents
Lifting device for construction of cable-stayed bridge Download PDFInfo
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- CN215714692U CN215714692U CN202122208350.5U CN202122208350U CN215714692U CN 215714692 U CN215714692 U CN 215714692U CN 202122208350 U CN202122208350 U CN 202122208350U CN 215714692 U CN215714692 U CN 215714692U
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Abstract
The utility model provides a lifting device for construction of a cable-stayed bridge, which comprises: the front support column and the rear support column are fixedly arranged on a cross beam of the cable-stayed bridge at intervals, the front support column and the rear support column are fixed on the cross beam of the cable-stayed bridge through bottom distribution beams, the bottom distribution beams are longitudinally arranged and fixed on the cross beam of the cable-stayed bridge, and the front support column and the rear support column are welded on the corresponding bottom distribution beams; the truss is fixedly supported on the tops of the front and rear struts, the truss is transversely arranged, the front end of the truss extends out of the bridge floor, the truss is fixed on the front and rear struts through a top distribution beam, the top distribution beam is longitudinally arranged and welded on the tops of the corresponding struts, and the truss is welded on the top distribution beam; and the first winch and the second winch are movably arranged on the truss, the first winch is positioned in front of the second winch, and the second winch is positioned at the rear end of the truss and used as a standby winch in a normal state. The lifting device for construction of the cable-stayed bridge is high in lifting efficiency and less restricted by a construction site.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a lifting device for cable-stayed bridge construction.
Background
A cable-stayed bridge is also called a diagonal tension bridge, is a bridge with a main beam directly pulled on a cable tower by a plurality of guys, and is a structural system formed by combining a pressure-bearing tower, a pulled cable and a bent-bearing beam body. The cable-stayed bridge mainly comprises a cable tower, a main beam and a stay cable.
In the process of constructing a cable-stayed bridge, the construction of a cable tower is particularly critical, and raw materials required for constructing the cable tower need to be hoisted to a bridge floor from below the bridge. The existing hoisting mode is as follows: the materials are hoisted from under the bridge to the deck by arranging large hoisting equipment such as a tower crane, a crawler crane and the like on the ground under the bridge. Because the ground hoisting equipment occupies a large space, the ground hoisting equipment is easily restricted by an actual construction site. And moreover, hoisting equipment is arranged on the ground under the bridge and hoisted from bottom to top, so that the hoisting efficiency is low. Based on this, the inventor provides a hoisting device of fixed mounting on cable-stay bridge girder to overcome current hoisting equipment hoist and mount inefficiency, easily receive the problem of construction site restraint.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a lifting device for construction of a cable-stayed bridge, which has high lifting efficiency and is less constrained by a construction site.
In order to achieve the above object, the present invention provides a lifting device for cable-stayed bridge construction, which is fixed to a cross beam of a cable-stayed bridge, and is used for lifting an item under the bridge to a bridge floor, the lifting device comprising:
the front support column and the rear support column are fixedly arranged on a cross beam of the cable-stayed bridge at intervals, the front support column and the rear support column are fixed on the cross beam of the cable-stayed bridge through bottom distribution beams, the bottom distribution beams are longitudinally arranged and fixed on the cross beam of the cable-stayed bridge, and the front support column and the rear support column are welded on the corresponding bottom distribution beams;
the truss is fixedly supported on the tops of the front and rear struts, the truss is transversely arranged, the front end of the truss extends out of the bridge floor, the truss is fixed on the front and rear struts through a top distribution beam, the top distribution beam is longitudinally arranged and welded on the tops of the corresponding struts, and the truss is welded on the top distribution beam; and
the first winch and the second winch are movably mounted on the truss, the first winch is located in front of the second winch, and the second winch is located at the rear end of the truss and serves as a standby winch in a normal state.
Preferably, the front pillar and the rear pillar are a steel section frame structure formed by combining steel sections.
Preferably, the front side of the front pillar is provided with a diagonal brace.
Preferably, each bottom distribution beam is fixed on a plurality of cable-stayed bridge cross beams which are sequentially arranged through a plurality of I-shaped steel bases.
Preferably, the I-shaped steel base comprises a top plate, a bottom plate and a web plate connected between the top plate and the bottom plate;
the top plate of each I-shaped steel base is welded and fixed with the corresponding bottom distribution beam, and the bottom plate is fixed with the corresponding cross beam of the cable-stayed bridge through bolts.
Preferably, a first bolt hole is formed in a bottom plate of the I-shaped steel base, a corresponding second bolt hole is formed in the cross beam of the cable-stayed bridge, and the bolt penetrates through the cross beam of the cable-stayed bridge and the I-shaped steel base to fix the cross beam of the cable-stayed bridge and the I-shaped steel base.
Preferably, the bottom distribution beam is an i-shaped steel beam, and a plurality of first stiffening plates and a plurality of second stiffening plates are welded on a web plate of the bottom distribution beam;
the first stiffening plates are respectively positioned at the connecting nodes between the bottom distribution beam and the I-shaped steel base;
and the second stiffening plates are respectively positioned at the connecting nodes between the bottom distribution beam and the front and rear supports.
Preferably, the rear part of the truss is provided with a counter-pulling mechanism for balancing the truss, and the counter-pulling mechanism comprises:
an upper counter-pulling beam fixed on the truss;
a lower reverse pull beam arranged on a cross beam of the cable-stayed bridge through a hinged support; and
and the inhaul cable is fixedly connected between the upper reverse pull beam and the lower reverse pull beam.
Preferably, the stay cable is finish-rolled deformed steel bar, and the upper end and the lower end of the finish-rolled deformed steel bar respectively penetrate through the through holes of the upper counter-pulling beam and the lower counter-pulling beam and are screwed with the corresponding nuts
The utility model has the following beneficial effects:
according to the technical scheme, the lifting device for construction of the cable-stayed bridge is fixedly arranged on a cross beam of the cable-stayed bridge. During hoisting, the article under the bridge can be hoisted to the bridge floor relatively conveniently through the first winch, and compared with the original hoisting equipment arranged on the ground, the hoisting equipment is less constrained by a construction site and has higher hoisting efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural view of a lifting device for construction of a cable-stayed bridge, which is mounted on a cross beam of the cable-stayed bridge;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an assembled perspective view of the truss, front and rear struts, and bottom spreader beam;
FIG. 5 is a schematic view of the assembly of a bottom spreader beam with a cross beam of a cable-stayed bridge;
FIG. 6 is an enlarged view of the point A in FIG. 5;
FIG. 7 is a schematic structural view of a reverse pulling mechanism;
reference numerals
1-a cross beam; 2-a front pillar; 3-rear pillar; 4-a truss; 5-diagonal bracing; 6-a reverse-pulling mechanism; 61-upper counter-pulling beam; 62-lower counter-pulling beam; 63-a pull cable; 64-free bearing; 7-top distribution beam; (ii) a 8-a first winch; 9-a second hoist; 10-bottom distribution beam; 10 a-a first stiffener; 10 b-a second stiffener; 11-an i-section steel base; 11 a-a top plate; 11 b-a bottom plate; 11 c-web.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 2, the cable-stayed bridge is a bridge in which a main beam is directly pulled on a cable tower by a plurality of cables, and is a structural system formed by combining a pressure-bearing tower, a tensioned cable and a bent beam body. The cable-stayed bridge mainly comprises a cable tower, a main beam and a stay cable. The main girder of the cable-stayed bridge adopts a longitudinal and transverse girder system, the longitudinal girder is longitudinally arranged, and the transverse girder is transversely arranged. The longitudinal direction in this context means along the length direction of the deck of the cable-stayed bridge and the transverse direction means along the width direction of the deck of the cable-stayed bridge. Along the length direction of the cable-stayed bridge deck, a plurality of cross beams 1 are sequentially arranged.
Referring to fig. 1 to 3, the present invention discloses a lifting device for cable-stayed bridge construction, which is installed on a cross beam 1 of a cable-stayed bridge and is located near a cable tower for lifting objects under the bridge to a bridge floor.
Specifically, the present invention provides a lifting device for cable-stayed bridge construction, comprising:
the front and rear struts are fixedly arranged on a cross beam 1 of the cable-stayed bridge and are arranged at intervals, the front and rear struts are connected with the cross beam 1 through a bottom distribution beam 10, the bottom distribution beam 10 is longitudinally arranged and fixed on the cross beam 1 of the cable-stayed bridge, the front and rear struts are welded on the corresponding bottom distribution beam 10, and the bottom distribution beam 10 is used for uniformly transmitting the acting force of the front and rear struts to the cross beam 1 of the cable-stayed bridge;
the truss 4 is fixedly supported on the tops of the front and rear struts, the truss 4 is transversely arranged, the front end of the truss 4 extends out of the bridge floor, the truss 4 is fixed on the front and rear struts through a top distribution beam 7, the top distribution beam 7 is longitudinally arranged and welded on the tops of the corresponding struts, the truss 4 is welded on the top distribution beam 7, and the top distribution beam 7 is used for uniformly transmitting the acting force of the truss 4 to the front and rear struts; and
the first winch 8 and the second winch 9 are movably mounted on the truss 4, the first winch 8 is located in front of the second winch 9, and the second winch 9 is located at the rear end of the truss 4 and serves as a standby winch in a normal state.
It can be seen from the above embodiments that the lifting device for cable-stayed bridge construction provided by the utility model is fixedly arranged on the cross beam 1 of the cable-stayed bridge. During hoisting, the article under the bridge can be hoisted to the bridge floor relatively conveniently through the first winch 8, and compared with the original hoisting equipment arranged on the ground, the hoisting equipment is less constrained by a construction site and has higher hoisting efficiency.
Referring to fig. 4, the front pillar 2 and the rear pillar 3 are formed of a steel frame made of a combination of steel sections. To maintain the truss 4 in balance, the front side of the front pillar 4 is provided with a sprag 5.
Referring to fig. 3, 5 and 6, in a preferred embodiment, the bottom distribution beam 10 is fixedly mounted on the cross beam 1 through a plurality of i-steel bases 11, and specifically, the i-steel bases 11 include a top plate 11a, a bottom plate 11b and a web 11c connected between the top plate and the bottom plate. The top plate 11a of each I-shaped steel base 11 is welded and fixed with the corresponding bottom distribution beam 10, and the bottom plate 11b is fixed with the corresponding cross beam 1 through bolts. During installation, a first bolt hole is formed in the bottom plate 11b of the I-shaped steel base 11, a corresponding second bolt hole is formed in the cable-stayed bridge cross beam 1, and a reinforcing bolt penetrates through the steel cross beam 1 and the I-shaped steel base 11 to fix the two.
Through the structure, the lifting device is integrally fixed on the cross beam 1 of the cable-stayed bridge through a plurality of I-shaped steel bases 11 by bolts. The steel beam is fixed by bolts, so that the installation speed is high, and the surface damage to the steel beam 1 is small.
As shown in fig. 5, it is more preferable that the bottom distributor beam 10 is an i-shaped steel beam, a plurality of first stiffener plates 10a and a plurality of second stiffener plates 10b are welded to a web of the bottom distributor beam, the plurality of first stiffener plates 10a are respectively located at connection nodes between the bottom distributor beam 10 and the i-shaped steel base 11, and the plurality of second stiffener plates 10b are respectively located at connection nodes between the bottom distributor beam 10 and the front and rear pillars.
Through the structure, the bottom distribution beam 10 is reinforced by rib plates at the positions of the connecting nodes of the H-shaped steel base 11 and the front and rear pillars, so that the stress is ensured to meet the requirements.
As shown in fig. 1, 2 and 7, in a further technical solution, a counter-pulling mechanism 6 for balancing the truss 4 is provided at the rear part of the truss 4, and the counter-pulling mechanism includes an upper counter-pulling beam 61, a lower counter-pulling beam 62 and a pulling cable 63 fixedly connected between the upper counter-pulling beam 61 and the lower counter-pulling beam 62. Wherein, the upper counter-pulling beam 61 is fixedly connected with the truss 4, and the lower counter-pulling beam is arranged on the cross beam 1 of the cable-stayed bridge through the supporting hinged support 64.
When the article is hoisted, the pull rope 63 of the counter-pulling mechanism 6 applies downward pull force to the rear part of the truss 4, so that the balance of the truss 4 is maintained. Through the structure arrangement, the gravity matching on the truss 4 is changed into a steel cable pulling mode, the hoisting weight on the truss 4 is transmitted to the foundation of the cable-stayed bridge crossbeam 1 through the cable 63, the automatic counterweight balance of the truss 4 is realized, and the hoisting capacity and the hoisting operation safety performance are improved.
Preferably, the tension cable 63 may be made of finish-rolled deformed steel, and the upper and lower ends of the finish-rolled deformed steel are inserted through the through holes of the upper and lower counter beams 61 and 62 and screwed with corresponding nuts, respectively, to fix the finish-rolled deformed steel to the brackets of the upper and lower counter beams 61 and 62.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (9)
1. The utility model provides a hoisting device is used in cable-stay bridge construction fixes on cable-stay bridge's crossbeam for promote the under-bridge article to the bridge floor, its characterized in that, hoisting device includes:
the front support column and the rear support column are fixedly arranged on a cross beam of the cable-stayed bridge at intervals, the front support column and the rear support column are fixed on the cross beam of the cable-stayed bridge through bottom distribution beams, the bottom distribution beams are longitudinally arranged and fixed on the cross beam of the cable-stayed bridge, and the front support column and the rear support column are welded on the corresponding bottom distribution beams;
the truss is fixedly supported on the tops of the front and rear struts, the truss is transversely arranged, the front end of the truss extends out of the bridge floor, the truss is fixed on the front and rear struts through a top distribution beam, the top distribution beam is longitudinally arranged and welded on the tops of the corresponding struts, and the truss is welded on the top distribution beam; and
the first winch and the second winch are movably mounted on the truss, the first winch is located in front of the second winch, and the second winch is located at the rear end of the truss and serves as a standby winch in a normal state.
2. The lifting device for cable-stayed bridge construction according to claim 1, wherein the front pillars and the rear pillars are a steel frame structure in which steel sections are combined.
3. The lifting device for cable-stayed bridge construction according to claim 2, wherein a diagonal brace is provided to a front side of the front pillar.
4. The lifting device for cable-stayed bridge construction according to claim 1, wherein each of the bottom distribution beams is fixed to a plurality of cross members of the cable-stayed bridge, which are sequentially arranged, through a plurality of i-shaped steel bases.
5. The lifting device for cable-stayed bridge construction according to claim 4, wherein the I-shaped steel base comprises a top plate, a bottom plate and a web plate connected between the top plate and the bottom plate;
the top plate of each I-shaped steel base is welded and fixed with the corresponding bottom distribution beam, and the bottom plate is fixed with the corresponding cross beam of the cable-stayed bridge through bolts.
6. The lifting device for cable-stayed bridge construction according to claim 5, wherein the bottom plate of the I-shaped steel base is provided with a first bolt hole, the cross beam of the cable-stayed bridge is provided with a corresponding second bolt hole, and a bolt penetrates through the cross beam of the cable-stayed bridge and the I-shaped steel base to fix the two.
7. The connecting structure of the hoisting frame and the cross beam of the cable-stayed bridge according to claim 4, wherein the bottom distribution beam is an I-shaped steel beam, and a plurality of first stiffening plates and a plurality of second stiffening plates are welded on a web plate of the bottom distribution beam;
the first stiffening plates are respectively positioned at the connecting nodes between the bottom distribution beam and the I-shaped steel base;
and the second stiffening plates are respectively positioned at the connecting nodes between the bottom distribution beam and the front and rear supports.
8. The lifting device for construction of a cable-stayed bridge according to claim 1, wherein a counter-pulling mechanism for balancing the truss is provided at a rear portion of the truss, the counter-pulling mechanism comprising:
an upper counter-pulling beam fixed on the truss;
a lower reverse pull beam arranged on a cross beam of the cable-stayed bridge through a hinged support; and
and the inhaul cable is fixedly connected between the upper reverse pull beam and the lower reverse pull beam.
9. The lifting device for cable-stayed bridge construction according to claim 8, wherein the cable is finish-rolled deformed steel bars, and upper and lower ends of the finish-rolled deformed steel bars pass through the through holes of the upper and lower counter beams, respectively, and are screwed with the corresponding nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122208350.5U CN215714692U (en) | 2021-09-13 | 2021-09-13 | Lifting device for construction of cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122208350.5U CN215714692U (en) | 2021-09-13 | 2021-09-13 | Lifting device for construction of cable-stayed bridge |
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| CN215714692U true CN215714692U (en) | 2022-02-01 |
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| CN202122208350.5U Active CN215714692U (en) | 2021-09-13 | 2021-09-13 | Lifting device for construction of cable-stayed bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855631A (en) * | 2022-05-26 | 2022-08-05 | 中交路桥建设有限公司 | Method for installing multi-beam steel cable tower |
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2021
- 2021-09-13 CN CN202122208350.5U patent/CN215714692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855631A (en) * | 2022-05-26 | 2022-08-05 | 中交路桥建设有限公司 | Method for installing multi-beam steel cable tower |
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