CN212245935U - High mound girder steel top pushes away equipment hoist device - Google Patents
High mound girder steel top pushes away equipment hoist device Download PDFInfo
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- CN212245935U CN212245935U CN202020774109.1U CN202020774109U CN212245935U CN 212245935 U CN212245935 U CN 212245935U CN 202020774109 U CN202020774109 U CN 202020774109U CN 212245935 U CN212245935 U CN 212245935U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 239000000725 suspension Substances 0.000 claims description 33
- 238000003466 welding Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 13
- 238000009415 formwork Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The invention relates to a high-pier steel beam pushing equipment hoisting device, which relates to the technical field of bridge construction and solves the problem that conventional hoisting equipment cannot work due to the limitation of terrain and hoisting height when the terrain and the pier height of a mountain area at a bridge are high. According to the invention, the hoisting device is fixedly arranged at the front end of the steel beam, the pushing equipment is hoisted to the top of the capping beam by using the device before the steel beam is subjected to pier erection, the pushing equipment moves along with the movement of the steel beam, and the head-connected steel beam is detached after being in place, so that the installation of the hoisting equipment under the condition of high pier height is ensured.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a high pier steel beam pushing equipment hoisting device.
Background
The reinforced concrete composite beam has large span and strong bearing capacity, and is commonly used for overpasses, ramp bridges and municipal roads. When the steel-concrete composite beam is constructed, a construction method of firstly paving steel beams and then pouring concrete bridge decks is generally adopted, when a jacking method is adopted for paving the steel beams, hoisting equipment is generally required to be put in place before the steel beams, jacking equipment is hoisted to the tops of the bent caps and installed in place, and then the steel beams are sequentially pushed in place in a connecting mode along the arrangement direction of the bent caps.
For example, the invention with publication number CN108086169A discloses an installation and lifting method of a movable formwork for bridge construction, which is a method for bridge construction aiming at the movable formwork, and comprises the following steps: assembling a movable mould frame on the ground to prepare for lifting; respectively installing temporary lifting gantries at the pier top positions of the first pier and the second pier, respectively installing continuous jacks on the temporary lifting gantries, assembling lifting steel strands on the continuous jacks, installing a ground assembling support on the ground between the first pier and the second pier, and hoisting and lifting the movable formwork by using the temporary lifting gantries; secondly, pushing the rear guide beam in place; thirdly, pushing the front guide beam in place; and fourthly, butting the main beams, putting the die carrier in place, and preparing to pour the manufactured beam.
In the invention, before hoisting, a temporary hoisting portal is arranged at the pier top, and the hoisting equipment can be hoisted through the temporary hoisting portal.
However, when the bridge is located in a mountainous area and the pier height is high, the conventional hoisting equipment cannot work due to the limitation of the terrain and the hoisting height.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-pier steel beam pushing equipment hoisting device which is fixedly arranged at the front end of a steel beam, wherein the pushing equipment is hoisted to the top of a capping beam by using the device before the steel beam is subjected to pier mounting, the pushing equipment moves along with the movement of the steel beam, and the head-connected steel beam is detached after being in place, so that the installation of the hoisting equipment under the condition of high pier height is ensured.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a high mound girder steel top pushes away equipment hoist device, is including locating the falsework of first joint girder steel front end and installing the electric block on the falsework, the length that the outstanding girder steel front end of falsework is greater than the width of mound top bent cap, be equipped with on the falsework from keeping away from girder steel one end to being close to the track of girder steel one end extension, the electric block slide set up in on the track.
By adopting the technical scheme, the hoisting device is not required to be independently arranged to hoist the jacking equipment before the steel beam is pushed, but the hoisting device is connected to the end part of the steel beam, because the length of the steel beam is generally longer, when the front end of the steel beam extends to the top of the first capping beam in front, the main body part of the steel beam is supported by the pushing platform at one end of the bridge, so that the steel beam still keeps stable support, at the moment, one end of the falsework, far away from the steel beam, is pushed to a position exceeding the capping beam, then the electric hoist is started to enable the lifting rope of the electric hoist to descend below the pier stud, the jacking equipment is hoisted to a position higher than the capping beam, then the electric hoist moves along the track in the direction close to the steel beam and hoists the jacking equipment to the position right above the capping beam, the lifting rope of the electric hoist descends, the jacking equipment is placed on the capping beam, the method comprises the following steps that with continuous forward pushing of a steel beam, the front end of the steel beam is supported on a pushing device at the top of a first cover beam, the pushing device participates in forward pushing of the steel beam, when the front end of the steel beam moves to be close to a next cover beam, the hoisting action is repeated, hoisting of the hoisting device at the top of the next cover beam is achieved, the process is repeated until the pushing device is installed on the last cover beam, subsequent steel beams can be directly pushed along each cover beam, and after the beam falls in place, the hoisting device on the first combined steel beam is dismantled. The hoisting device is installed on the head-connected steel beam, the hoisting of the jacking equipment is carried out in the process of steel beam jacking, the problem that the conventional jacking equipment cannot operate due to the limitation of the terrain and the hoisting height under the condition of high pier height is solved, the complex flow and cost of independently installing the hoisting equipment and moving the hoisting equipment between all pier tops are reduced, and the jacking equipment under the condition of high pier height is ensured to be installed.
The present invention in a preferred example may be further configured to: the falsework comprises at least two groups of suspension beams and fixed beams which are parallel to each other, the suspension beams and the fixed beams are horizontally arranged in the direction parallel to the length direction of a steel beam, the suspension beams are arranged above and below the fixed beams, the fixed beams are connected to the steel beam, the projection of the suspension beams in the horizontal plane is longer than the distance of at least one bent cap at the front end of the steel beam, inclined support beams are respectively connected between the two ends of the suspension beams and the two ends of the fixed beams, and a quadrilateral structure is formed among the suspension beams, the fixed beams and the inclined support beams.
By adopting the technical scheme, the fixed beam is used for fixing the falsework on the top of the steel beam, the suspension beam extends to the front end of the steel beam and is used for ensuring that the electric hoist can move to the front of the cover beam in the hoisting process and hoisting the pushing equipment to the top of the cover beam, and the suspension beam and the fixed beam are connected together by the inclined support beam, so that the stability of the whole falsework structure is ensured.
The present invention in a preferred example may be further configured to: and an intermediate beam is also connected between the suspension beam and the fixed beam and divides the quadrilateral structure into two triangles.
By adopting the technical scheme, the triangle has stability, so that the middle beam is arranged to enable the falsework to be more stable when the jacking and pushing equipment is lifted, and the safety of the lifting process is ensured.
The present invention in a preferred example may be further configured to: the middle beam is vertically arranged, and the end part of the fixed beam and the end part of the inclined strut beam respectively support against two opposite surfaces of the middle beam.
By adopting the technical scheme, when the electric hoist moves to one end of the falsework far away from the steel beam for lifting and hanging the pushing equipment, the end part of the falsework bears the gravity to have downward force, the force is transmitted to the middle beam through the inclined supporting beam and is transmitted to the fixed beam through the middle beam, and the fixed beam is fixed on the steel beam, so that the whole falsework is stable and firm in structure.
The present invention in a preferred example may be further configured to: the falsework is welded and connected with the steel beam through shear nails.
By adopting the technical scheme, the falsework is more firmly connected with the steel beam, and the safety in the hoisting process is ensured.
The present invention in a preferred example may be further configured to: the utility model discloses a fixed beam of hanging, hang the roof beam and be equipped with two sets ofly with the fixed beam altogether, hang between the roof beam and be equipped with the tie-beam between the fixed beam respectively perpendicular to girder steel's length direction, the tie-beam is equipped with four, the both ends of tie-beam weld respectively in hang between the tip of roof beam or between the tip of fixed beam.
By adopting the technical scheme, the two groups of suspension beams and the fixed beams are connected into a whole by the connecting beams, so that the integrity of the falsework is ensured, the two ends of the falsework and the steel beams can be mutually restrained after being connected, and the looseness of the connecting structure is not easy to occur.
The present invention in a preferred example may be further configured to: and shear frames are arranged on the plane formed by the connecting beam and the middle beam and in the plane formed by the connecting beam and the suspension beam.
Through adopting above-mentioned technical scheme, the connection of falsework on vertically and transversely has further been strengthened to the setting of cutting the formula frame, has further improved the wholeness of falsework structure, and when two electric block promoted the part in same lifting device from both ends, electric block can rise in step, and the hoist and mount part rises more steadily.
The present invention in a preferred example may be further configured to: the falsework is formed by welding profile steels.
By adopting the technical scheme, the section steel has larger bending resistance, the deformation of the falsework can be reduced, meanwhile, when the falsework is assembled, the section steel with the required length can be directly cut off, and the section steel is welded to form the falsework, so that the assembling cost of the falsework is lower.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the hoisting device is arranged on the head-connected steel beam, and the pushing equipment is hoisted in the process of pushing the steel beam, so that the problem that the conventional hoisting equipment cannot operate due to the limitation of terrain and hoisting height under the condition of high pier height is solved, the complicated flow and cost for independently installing the hoisting equipment and moving the hoisting equipment among all pier tops are reduced, and the pushing equipment can be installed under the condition of high pier height;
2. the falsework has a stable structure, and the safety of the hoisting process is ensured.
Drawings
Fig. 1 is the utility model discloses a high mound girder steel top pushes away equipment hoist device's installation state sketch map.
Fig. 2 is a schematic perspective view of the hoisting device.
Fig. 3 is a schematic diagram of the P-direction structure in fig. 1.
Fig. 4 is a schematic diagram of the Q-direction structure in fig. 1.
In the drawings, 1, a steel beam; 2. falsework; 21. a suspension beam; 22. a fixed beam; 23. a diagonal bracing beam; 24. a center sill; 25. a connecting beam; 26. a scissor frame; 3. an electric hoist; 4. a track; 5. and a capping beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the high-pier steel beam pushing equipment hoisting device disclosed by the invention comprises a falsework 2 arranged at the front end of a head-connected steel beam 1 and an electric hoist 3 arranged on the falsework 2, wherein a rail 4 extending from one end far away from the steel beam 1 to one end close to the steel beam 1 is arranged on the falsework 2, and the electric hoist 3 is arranged on the rail 4 in a sliding manner.
Referring to fig. 1 and 2, the falsework 2 is formed by welding section steel and comprises two groups of parallel suspension beams 21 and fixed beams 22, wherein the suspension beams 21 and the fixed beams 22 are horizontally arranged in the direction parallel to the length direction of the steel beam 1, the suspension beams 21 are arranged above, the fixed beam 22 is arranged below, the falsework 2 and the steel beam 1 are connected to the upper end face of the steel beam 1 through shear nails in a welding mode, the projection of the suspension beam 21 in the horizontal plane is longer than the distance of at least one cover beam 5 at the front end of the steel beam 1, the two ends of the suspension beam 21 in each group and the two ends of the fixed beam 22 are respectively connected with an inclined support beam 23 and a middle beam 24, a quadrilateral structure is formed among the suspension beam 21, the fixed beam 22 and the two inclined support beams 23 in each group, the quadrilateral structure is divided into two triangles by the middle beam 24, the middle beam 24 in the embodiment is vertically arranged, and the end part of the fixed beam 22 and the end part of the inclined support beam 23 respectively abut against two opposite faces of the middle beam 24. Because the triangle has stability, the arrangement of the middle beam 24 enables the falsework 2 to be more stable when lifting and pushing equipment, and the safety of the lifting process is ensured.
Referring to fig. 3 and 4, connecting beams 25 are respectively arranged between two suspension beams 21 and between two fixed beams 22 in a direction perpendicular to the length direction of the steel beam 1, the number of the connecting beams 25 is four, two ends of each connecting beam 25 are respectively welded between the end portions of the suspension beams 21 or between the end portions of the fixed beams 22, and scissor frames 26 are respectively arranged on a plane formed by the connecting beams 25 and the intermediate beams 24 and a plane formed by the connecting beams 25 and the suspension beams 21. The connecting beams 25 connect the two groups of suspension beams 21 and the fixed beams 22 into a whole, so that the integrity of the falsework 2 is ensured, the two ends of the falsework 2 and the steel beams 1 can be mutually restrained after being connected, and the looseness of a connecting structure is not easy to occur; the arrangement of the shear type frame 26 further strengthens the connection of the falsework 2 in the longitudinal direction and the transverse direction, further improves the structural integrity of the falsework 2, and when two electric hoists 3 lift parts in the same hoisting equipment from two ends, the electric hoists 3 can rise synchronously, so that the hoisting parts rise more stably.
The utility model discloses an implementation principle is: the hoisting device is not required to be independently arranged to hoist the jacking equipment before the steel beam 1 is pushed, but is connected to the end part of the steel beam 1. Because the length of the steel beam 1 is generally longer, when the front end of the steel beam 1 extends to the top of a first capping beam 5 in front, the main body part of the steel beam 1 is supported by a pushing platform at one end of the bridge, so that the steel beam 1 still keeps stable support, at the moment, one end of the falsework 2, which is far away from the steel beam 1, is pushed to a position exceeding the capping beam 5, then the electric hoist 3 is started, a lifting rope of the electric hoist 3 is lowered to the position below a pier stud, the pushing equipment is hoisted to a position higher than the capping beam 5, then the electric hoist 3 moves along the track 4 in the direction close to the steel beam 1, the pushing equipment is hoisted to the position right above the capping beam 5, the lifting rope of the electric hoist 3 is lowered, the pushing equipment is placed on the capping beam 5, a person installs the pushing equipment to a proper position on the capping beam 5, and as the steel beam 1 continuously pushes forwards, the front end of the steel, and the pushing equipment participates in pushing the steel beam 1 forwards, when the front end of the steel beam 1 moves to be close to the next capping beam 5, the hoisting action is repeated, hoisting of the hoisting equipment at the top of the next capping beam 5 is realized, the operation is repeated until the last capping beam 5 is provided with the pushing equipment, the subsequent steel beam 1 can be directly pushed along each capping beam 5, and after the beam is in place, the hoisting device on the first steel beam 1 is detached.
Install above-mentioned hoist device on first-hand joint girder steel 1, carry out the hoist and mount of top pushing equipment at the in-process that girder steel 1 top pushed, solved under the higher circumstances of pier height, the unable operation of conventional hoisting equipment receives topography and hoist and mount height restriction to reduced loaded down with trivial details flow and the cost of installing hoisting equipment alone and removing hoisting equipment between each pier top, guaranteed under the higher circumstances of pier height, top pushing equipment can obtain the installation.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a high mound girder steel pushing equipment hoist device which characterized in that: including locating falsework (2) of first antithetical couplet girder steel (1) front end and installing electric block (3) on falsework (2), the length that falsework (2) outstanding girder steel (1) front end is greater than the width of mound top capping beam, be equipped with on falsework (2) from keeping away from girder steel (1) one end to being close to track (4) that girder steel (1) one end extends, electric block (3) slide set up in on track (4).
2. The high pier steel beam jacking equipment hoisting device of claim 1, wherein: the falsework (2) comprises at least two groups of suspension beams (21) and fixed beams (22) which are parallel to each other, the suspension beams (21) and the fixed beams (22) are horizontally arranged in the length direction parallel to the steel beam (1), the suspension beams (21) are arranged above and below the fixed beams (22), the fixed beams (22) are connected to the steel beam (1), the projection of the suspension beams (21) in the horizontal plane is longer than the distance of at least one cover beam (5) at the front end of the steel beam (1), bracing beams (23) are respectively connected between the two ends of the suspension beams (21) and the two ends of the fixed beams (22), and a quadrilateral structure is formed among the suspension beams (21), the fixed beams (22) and the bracing beams (23).
3. The high pier steel beam jacking equipment hoisting device of claim 2, wherein: an intermediate beam (24) is further connected between the suspension beam (21) and the fixed beam (22), and the quadrilateral structure is divided into two triangles by the intermediate beam (24).
4. The high pier steel beam jacking equipment hoisting device of claim 3, wherein: the middle beam (24) is vertically arranged, and the end part of the fixed beam (22) and the end part of the inclined supporting beam (23) are respectively abutted to two opposite surfaces of the middle beam (24).
5. The high pier steel beam jacking equipment hoisting device of claim 1, wherein: the falsework (2) is connected with the steel beam (1) through shear nails in a welding mode.
6. The high pier steel beam jacking equipment hoisting device of claim 3, wherein: the suspension beam (21) and the fixed beam (22) are provided with two groups, the connection beams (25) are arranged between the suspension beams (21) and between the fixed beams (22) and perpendicular to the length direction of the steel beam (1) respectively, the connection beams (25) are four, and two ends of the connection beams (25) are welded between the end portions of the suspension beams (21) or between the end portions of the fixed beams (22) respectively.
7. The high pier steel beam jacking equipment hoisting device of claim 6, wherein: and a shear type frame (26) is arranged on the plane formed by the connecting beam (25) and the middle beam (24) and in the plane formed by the connecting beam (25) and the suspension beam (21).
8. The high pier steel beam jacking equipment hoisting device of claim 1, wherein: the falsework (2) is formed by welding profile steels.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020774109.1U CN212245935U (en) | 2020-05-11 | 2020-05-11 | High mound girder steel top pushes away equipment hoist device |
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| CN202020774109.1U CN212245935U (en) | 2020-05-11 | 2020-05-11 | High mound girder steel top pushes away equipment hoist device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356082A (en) * | 2021-07-16 | 2021-09-07 | 中国十九冶集团有限公司 | Method for dismantling steel cofferdam for bridge construction water retaining |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356082A (en) * | 2021-07-16 | 2021-09-07 | 中国十九冶集团有限公司 | Method for dismantling steel cofferdam for bridge construction water retaining |
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