CN111851296A - Steel beam hoisting method - Google Patents
Steel beam hoisting method Download PDFInfo
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- CN111851296A CN111851296A CN202010573969.3A CN202010573969A CN111851296A CN 111851296 A CN111851296 A CN 111851296A CN 202010573969 A CN202010573969 A CN 202010573969A CN 111851296 A CN111851296 A CN 111851296A
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- steel beam
- crane
- hoisting
- steel
- hoisting method
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 110
- 239000010959 steel Substances 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 230000005484 gravity Effects 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/60—Derricks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a steel beam hoisting method, which comprises the following steps: s100, paving a crane operation area with steel plates to provide a stable supporting platform; step S200, extending out a suspension arm of the crane and simultaneously descending a lifting hook; step S300, trial hoisting is carried out on the steel beam; s400, binding steel beam components and firmly sleeving ropes at the same time; s500, adopting a pull rope to control stability, and lifting the steel beam component upwards; s600, rotating and moving the crane to a position point, and transporting the steel beam component; step S700, descending a steel beam component; and step S800, untying the rope to finish the hoisting of the steel beam. The invention belongs to the technical field of building construction, and aims to solve the problems of large volume and difficult installation of a steel beam in the prior art. The technical effects achieved are as follows: the steel beam hoisting method is simple and rapid in construction method, effectively achieves hoisting of the steel beam, remarkably improves safety in the construction process, reduces construction period and improves construction quality.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a steel beam hoisting method.
Background
In the existing bridge construction, a cantilever splicing method is usually adopted for construction, and by adopting the method, the rear end of a steel beam needs to be pressed or anchored, so that the temporary engineering quantity is huge. When the method is adopted to construct the large-span steel beam, the front end of the cantilever deforms greatly, and the pier construction at the front end of the cantilever is difficult and dangerous.
In addition, the engineering steel beam has complicated structural body, compact construction period, multiple construction operation surfaces and large transportation difficulty, the engineering steel beams are all ultra-long and ultra-wide, and the whole transportation is difficult to realize; the complexity of the construction environment also puts high demands on the aspects of construction quality, construction period progress, safe production, civilized construction, safety around the site, material equipment entering and leaving the field and the like.
Disclosure of Invention
Therefore, the invention provides a steel beam hoisting method, which aims to solve the problems of large size and difficult installation of a steel beam in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to a first aspect of the invention, a steel beam hoisting method comprises the following steps:
s100, paving a crane operation area with steel plates to provide a stable supporting platform;
step S200, extending out a suspension arm of the crane and simultaneously descending a lifting hook;
Step S300, trial hoisting is carried out on the steel beam;
s400, binding steel beam components and firmly sleeving ropes at the same time;
s500, adopting a pull rope to control stability, and lifting the steel beam component upwards;
s600, rotating and moving the crane to a position point, and transporting the steel beam component;
step S700, descending a steel beam component;
and step S800, untying the rope to finish the hoisting of the steel beam.
Further, the thickness of the steel plate used in step S100 is 20 cm.
Further, step S100 specifically includes: removing surface soil, sundries and sludge in the range of a crane before the crane is in place, then adopting coarse gravel or other water seepage materials to tamp in layers, paving a stone powder cushion layer with the thickness of 10cm on the crane, then repeatedly compacting by using a road roller, then paving two layers of lime soil with the thickness of 20cm, and adopting a level gauge to control the flatness of the installation of a foundation formwork when paving concrete.
Further, step 100 specifically includes: after the operation ground is processed, carrying out bearing capacity inspection, and detecting the ground by adopting a static load test or a static sounding test to ensure that the bearing capacity of the foundation meets the operation requirement of the 400-ton crawler crane.
Further, step S300 specifically includes: and (5) hanging to a height of 5 cm-10 cm in a test, and carrying out hovering inspection.
Further, step S400 specifically includes: the steel beam should be firmly bound, the binding points and the gravity centers of the steel beam components should be symmetrical to each other, and the centers of the binding points are aligned with the gravity centers of the objects and are higher than the gravity centers of the components.
Further, step S500 specifically includes: the uniform movement is kept in the hoisting process, and the collision of the peripheral steel beams is avoided.
Further, the step S700 specifically includes that when the crane hoists the steel beam arm rod to rotate, the cable wind rope is tied to the diagonal of the steel beam, the crane arm rod and the steel beam are kept to rotate in parallel, when the crane descends to 1.5m height during loading of the steel beam, manual steering is adopted, and after steering and aligning, the rope is descended to be unhooked.
Further, step S100 specifically includes: four supporting base plates are correspondingly added under the four supporting legs of the crane.
Further, the support base plate is made of Q235B steel plate and 36B hot rolled steel channels.
The invention has the following advantages: the steel beam hoisting method is simple and rapid in construction method, effectively achieves hoisting of the steel beam, remarkably improves safety in the construction process, reduces construction period and improves construction quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a flowchart of a steel beam hoisting method according to some embodiments of the present invention.
Fig. 2 is a crane structure diagram of a method for hoisting a steel beam according to some embodiments of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the steel beam hoisting method in this embodiment includes the following steps:
s100, paving a crane operation area with steel plates to provide a stable supporting platform;
step S200, extending out a suspension arm of the crane and simultaneously descending a lifting hook;
step S300, trial hoisting is carried out on the steel beam;
s400, binding steel beam components and firmly sleeving ropes at the same time;
s500, adopting a pull rope to control stability, and lifting the steel beam component upwards;
s600, rotating and moving the crane to a position point, and transporting the steel beam component;
step S700, descending a steel beam component;
and step S800, untying the rope to finish the hoisting of the steel beam.
The technical effect that this embodiment reaches does: according to the steel beam hoisting method, the construction method is simple and rapid, the steel beam is effectively hoisted, the safety in the construction process is obviously improved, the construction period is shortened, and the construction quality is improved.
Example 2
As shown in fig. 1 and 2, the steel beam hoisting method in this embodiment includes all the technical features of embodiment 1, and in addition, the steel plate used in step S100 has a thickness of 20cm to protect the road surface from being damaged, so as to prevent the hoisting weight of the crane from being too concentrated to damage the road surface.
Specifically, the steel beam transported to the site is subjected to secondary splicing work, assembled into a hoisting section, the elevation of the pad stone of the main line bridge is retested, and the steel beam support is installed after the elevation is compared with a design value without errors. After the support is installed, re-measuring the elevation of the support; arranging a temporary support; and hoisting the steel beams at different positions in sequence, and unloading and dismantling the temporary support after welding the steel box beam and screwing the high bolt.
In some optional embodiments, step S100 specifically further includes: removing surface soil, sundries and sludge in the range of a crane before the crane is in place, then adopting coarse gravel or other water seepage materials to tamp in layers, paving a stone powder cushion layer with the thickness of 10cm on the crane, then repeatedly compacting by using a road roller, then paving two layers of lime soil with the thickness of 20cm, and adopting a level gauge to control the flatness of the installation of a foundation template when paving concrete; the foundation is ensured to be basically horizontal after pouring, so that the safe construction of a crane is facilitated; if the original surface soil is too wet, the original ground wet soil is turned loose and aired to the optimum water content range for leveling, lime is doped for improvement when the soil quality is poor, then a heavy road roller is adopted for rolling compaction, and the bearing capacity of the foundation is guaranteed to be not less than 241 KPa.
In some optional embodiments, step 100 specifically further includes: after the operation ground is processed, carrying out bearing capacity inspection, and detecting the ground by adopting a static load test or a static sounding test to ensure that the bearing capacity of the foundation meets the operation requirement of the 400-ton crawler crane.
In the implementation process, a crane driver checks whether the operation conditions meet the requirements after boarding, and a specially certified installation mechanic and an electrician check barrier factors influencing the crane operation, check the state of the counterweight and determine the states of all working devices of the crane; checking whether the multiplying power of the lifting hook and the steel wire rope is matched with the hung object; the technical state of the crane is checked, in particular the state of a worktable of the safety protection device is checked, and the functions of the safety protection device are checked by being provided with an electronic moment limit or a safety load indicator. The starting can be carried out only after confirming that each operating lever is at the neutral position (or the clutch is released), and for the crane provided with the energy accumulator and needing to check whether the pressure meets the specified requirement, the crane driver provided with the clutch needs to check whether the function of the clutch can work normally by using the clutch operating handle. At the same time, the clutch must be locked after the clutch is pushed in. The lifting hook is loosened, the arm support is lifted up, the working mechanisms are operated at low speed, the lifting, amplitude variation, stretching and rotation of the working mechanisms and the brake pedal are stably operated, and whether the instruments and the indicator lamps of all parts are normal or not is observed, so that the working can be normally operated when all parts are normal in function.
The beneficial effects in this embodiment are: this embodiment has guaranteed the stability of construction, the safety goes on.
Example 3
As shown in fig. 1 and fig. 2, the steel beam hoisting method in this embodiment includes all the technical features of embodiment 2, and in addition, the step S300 further includes: and when the steel beam is lifted to a height of 5cm to 10cm in an attempt, hovering for checking whether potential safety hazards exist or not, continuing to lift off after the potential safety hazards are confirmed, arranging a lifting point on the steel beam, and connecting the lifting point with a steel wire rope by using a clamping ring during lifting.
In some optional embodiments, step S400 further specifically includes: the steel beam should be firmly bound, the binding points and the gravity centers of the steel beam components should be symmetrical, and the centers of the binding points are aligned with the gravity centers of the objects and are higher than the gravity centers of the components, so that the components are stable after being lifted, and accidents caused by overturning are avoided.
In some optional embodiments, step S500 further specifically includes: the uniform movement is kept in the hoisting process, and the collision of the peripheral steel beams is avoided.
Arranging a cable wind rope: the system is characterized in that 2 cable wind ropes are adopted and bound on steel wire ropes on the side faces of steel beams, when a crane lifts the steel beams, a lifting master commands to closely observe whether the starting points of the steel beams move with lifting waves or not, the interphone commands the rope pulling direction of cable wind ropes pulled by each side to be responsible for people, the steel beams are guaranteed to rotate in the air according to the preset track direction, the steel beams are not touched with un-lifted steel beams, obstacles, crane arms and transport vehicles, and the cable wind ropes can be taken out after the steel beams fall to a lifting person and can hold the steel beams.
The beneficial effects in this embodiment are: the safety of subsequent construction is ensured through trial hoisting; through setting up the guy rope, realized the construction in strong wind weather, guaranteed the security.
Example 4
As shown in fig. 1 and 2, the steel beam hoisting method in this embodiment includes all the technical features of embodiment 3, and in addition, step S700 specifically includes that when the crane rotates the steel beam hoisting arm, the cable wind rope is tied to the diagonal of the steel beam, the crane arm and the steel beam are kept rotating in parallel, when the crane is rope-lowered to 1.5m height when the steel beam is loaded, the crane is manually steered, and after the crane is rope-lowered and aligned, the rope-lowered is unhooked.
The beneficial effects in this embodiment are: through the steps of the embodiment, the construction stability is ensured.
Example 5
As shown in fig. 1 and fig. 2, the steel beam hoisting method in this embodiment includes all the technical features of embodiment 4, and in addition, the step S100 further includes: four supporting base plates are correspondingly added below the four support legs of the crane; the support backing plate is made of Q235B steel plate and 36B hot rolled steel channel.
The beneficial effects in this embodiment are: four 2.5m multiplied by 0.3m support base plates (road base plates) are additionally arranged under four supporting legs of the crane and are used for increasing the stress area and reducing the specific grounding pressure of each supporting leg to the ground.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
Claims (10)
1. A steel beam hoisting method is characterized by comprising the following steps:
s100, paving a crane operation area with steel plates to provide a stable supporting platform;
step S200, extending out a suspension arm of the crane and simultaneously descending a lifting hook;
step S300, trial hoisting is carried out on the steel beam;
s400, binding steel beam components and firmly sleeving ropes at the same time;
s500, adopting a pull rope to control stability, and lifting the steel beam component upwards;
s600, rotating and moving the crane to a position point, and transporting the steel beam component;
Step S700, descending a steel beam component;
and step S800, untying the rope to finish the hoisting of the steel beam.
2. The steel beam hoisting method according to claim 1, wherein the steel plate used in step S100 has a thickness of 20 cm.
3. The steel beam hoisting method according to claim 2, wherein the step S100 further comprises: removing surface soil, sundries and sludge in the range of a crane before the crane is in place, then adopting coarse gravel or other water seepage materials to tamp in layers, paving a stone powder cushion layer with the thickness of 10cm on the crane, then repeatedly compacting by using a road roller, then paving two layers of lime soil with the thickness of 20cm, and adopting a level gauge to control the flatness of the installation of a foundation formwork when paving concrete.
4. The steel beam hoisting method according to claim 3, wherein the step 100 further comprises: after the operation ground is processed, carrying out bearing capacity inspection, and detecting the ground by adopting a static load test or a static sounding test to ensure that the bearing capacity of the foundation meets the operation requirement of the 400-ton crawler crane.
5. The steel beam hoisting method according to claim 1, wherein the step S300 further comprises: and (5) hanging to a height of 5 cm-10 cm in a test, and carrying out hovering inspection.
6. The steel beam hoisting method according to claim 1, wherein the step S400 further comprises: the steel beam should be firmly bound, the binding points and the gravity centers of the steel beam components should be symmetrical to each other, and the centers of the binding points are aligned with the gravity centers of the objects and are higher than the gravity centers of the components.
7. The steel beam hoisting method according to claim 1, wherein the step S500 further comprises: the uniform movement is kept in the hoisting process, and the collision of the peripheral steel beams is avoided.
8. The steel beam hoisting method according to claim 1, wherein the step S700 further comprises the steps of tying a guy rope to the diagonal of the steel beam when the hoisting steel beam arm of the crane rotates, keeping the crane arm and the steel beam rotating in parallel, turning by manual hand when the crane descends to 1.5m height when the steel beam is loaded, and unhooking the rope after the turning is aligned.
9. The steel beam hoisting method according to claim 1, wherein the step S100 further comprises: four supporting base plates are correspondingly added under the four supporting legs of the crane.
10. The method of hoisting a steel beam as claimed in claim 9, wherein the support mat is made of Q235B steel sheet and 36B hot rolled steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573969.3A CN111851296A (en) | 2020-06-22 | 2020-06-22 | Steel beam hoisting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573969.3A CN111851296A (en) | 2020-06-22 | 2020-06-22 | Steel beam hoisting method |
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| CN111851296A true CN111851296A (en) | 2020-10-30 |
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| CN202010573969.3A Pending CN111851296A (en) | 2020-06-22 | 2020-06-22 | Steel beam hoisting method |
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Application publication date: 20201030 |
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