CN108518071A - The installation method of the double-deck large-span steel vestibule - Google Patents
The installation method of the double-deck large-span steel vestibule Download PDFInfo
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- CN108518071A CN108518071A CN201810245982.9A CN201810245982A CN108518071A CN 108518071 A CN108518071 A CN 108518071A CN 201810245982 A CN201810245982 A CN 201810245982A CN 108518071 A CN108518071 A CN 108518071A
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- Prior art keywords
- vestibule
- lower layer
- monolithic
- semi
- span
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The present invention provides a kind of installation methods of the double-deck large-span steel vestibule, include the following steps:A, correspond to the holder that support vestibule is equipped at the position at vestibule both ends on the ground;B, the middle part to lower layer's vestibule and bottom splicing are assembled into lower layer's vestibule semi-monolithic, and identical first truck crane of two tonnages, two first truck cranes is selected to be located at the both sides at the span centre of lower layer's vestibule semi-monolithic in the width direction;C, after the completion of waiting for frame bottom concrete construction, lower layer's vestibule semi-monolithic lifting is placed into the top of holder using two the first truck cranes;D, preparation and vestibule top plate is installed;E, upper layer vestibule main couple is divided into three sections to make and transport to construction site, two sections of upper layers vestibule end main couple is lifted respectively to corresponding position on vestibule top plate using third truck crane, is lifted main couple among the vestibule of upper layer to vestibule top plate using the second truck crane;Coupling beam and tie-rod of the installation for enhancing its intensity on the vestibule main couple of upper layer.
Description
Technical field
The present invention relates to a kind of construction technologies of building vestibule, more particularly, to a kind of double-deck large-span steel vestibule
Installation method.
Background technology
When general progress large-span steel vestibule installation, the installation that vestibule is carried out by large-scale lifting appliance is needed, especially
It is the vestibule of large span, then more larger equipment is needed to carry out lifting installation.But in some remote areas, due to ground
The limitation of manage bar part can not accommodate the lifting appliance of large-tonnage, this just brings to the installation of large-span steel vestibule very big
Difficulty.
Invention content
It is existing double to solve it is an object of the invention to provide a kind of installation method of the double-deck large-span steel vestibule
Layer large-span steel vestibule construction method it is existing due to construction site can not accommodate large tonnage crane cause it is difficult to install
Problem.
The object of the present invention is achieved like this:
A kind of installation method of bilayer large-span steel vestibule, includes the following steps:
A, correspond to the holder that support vestibule is equipped at the position at vestibule both ends on the ground, in mounting bracket to each
Frame bottom carries out the construction of concrete;
B, the middle part to lower layer's vestibule and bottom carry out splicing assembling, are assembled into an entirety, and it is logical that this is collectively referred to as lower layer
Corridor semi-monolithic selects identical first truck crane of two tonnages, this two first truck cranes to be located at lower layer's vestibule semi-monolithic
Span centre at both sides in the width direction;
C, after the completion of waiting for frame bottom concrete construction, the foundation pit backfill of frame bottom is finished, two first vapour are utilized
Vehicle suspension hook hangs the both sides at lower layer's vestibule semi-monolithic span centre, and lower layer's vestibule semi-monolithic lifting is placed into the top of holder, choosing
With second truck crane, the position of the second truck crane adjustment lower layer vestibule semi-monolithic is utilized;
D, preparation and vestibule top plate is installed:Vestibule top plate is made according to the size of vestibule, utilizes two described first in step b
The vestibule top plate is lifted into the top of lower layer's vestibule semi-monolithic by truck crane, and logical by second truck crane cooperation adjustment
Vestibule top plate is fixedly connected by the position of corridor top plate with the top of lower layer vestibule semi-monolithic later;
E, upper layer vestibule main couple is divided into three sections to make and transport to construction site, is located at upper layer vestibule main couple along span side
It is upper layer vestibule end main couple to the main couple section at both ends, is located at main couple of the upper layer vestibule main couple in the middle part of span direction
Section is main couple among the vestibule of upper layer, and a third truck crane is selected to be placed on vestibule top plate, using third truck crane by two
Section upper layer vestibule end main couple is lifted respectively to corresponding position on vestibule top plate, is led to upper layer using second truck crane
Main couple is lifted to vestibule top plate among corridor, and main truss rack position among upper layer vestibule end main couple and upper layer vestibule is adjusted
Weld together with lower layer vestibule after splicing is good;Coupling beam for enhancing its intensity is installed on the vestibule main couple of upper layer and is
Bar.
In stepb, the quality control of lower layer's vestibule semi-monolithic is 60 tons or less than 60 ton.
In stepb, it after lower layer's vestibule semi-monolithic splicing is completed, is horizontally arranged on the ground, the lower layer
The center of vestibule semi-monolithic is located at the span centre of vestibule, and the line of centres between two stands and lower layer's vestibule semi-monolithic
There is angle between length direction.
The tonnage of first truck crane is 160 tons.
The tonnage of second truck crane is 70 tons.
The tonnage of the third truck crane is 25 tons.
In stepb, the springing height of lower layer's vestibule semi-monolithic is the 3 ‰ of its span;
In step e, the springing height for splicing the upper layer vestibule main couple of completion is the 3 ‰ of its span.
In step c, the suspension hook of every first truck crane is being located at lower layer's vestibule semi-monolithic span centre respective side just
Top, each the lifting point of the corresponding lower layer's vestibule semi-monolithic of first truck crane is two, each first automobile
The suspension hook hung is fixedly connected by steel wire rope with two lifting points, the angle between two steel wire ropes of each first truck crane
Degree is equal to or less than 60 °, and the lifting point of lower layer's vestibule semi-monolithic is distributed on the lower boom of its respective side.
In stepb, it installs and is used at the span centre of lower layer's vestibule semi-monolithic when splicing assembles lower layer's vestibule semi-monolithic
Support the falsework of vestibule top plate.
The present invention selects identical first truck crane of two tonnages, two first truck cranes to be located at lower layer's vestibule semi-monolithic
Span centre at both sides in the width direction, that is, use double crane span centre erect-position technologies, can be quick by smaller tonnage truck crane
And the safety for being accurately performed Corridor is in place.
Description of the drawings
Fig. 1 is the structural schematic diagram of vestibule installation of the present invention.
Fig. 2 is the floor map of vestibule lifting of the present invention.
Fig. 3 is the elevational schematic view of Fig. 1.
Fig. 4 is the annexation figure of vestibule lifting point and corresponding truck crane.
In figure:1, lower layer's vestibule semi-monolithic;2, the first truck crane;3, holder.
Specific implementation mode
As shown in Fig. 1 ~ Fig. 4, a kind of installation method of bilayer large-span steel vestibule includes the following steps:
A, correspond to the holder 3 that support vestibule is equipped at the position at vestibule both ends on the ground, in mounting bracket 3 to each
3 bottom of holder carries out the construction of concrete.
B, the middle part to lower layer's vestibule and bottom carry out splicing assembling, are assembled into an entirety, this is collectively referred to as down
Layer vestibule semi-monolithic 1 selects identical first truck crane 2 of two tonnages, and it is whole that this two the first truck cranes 2 are located at lower layer's vestibule half
Both sides at the span centre of body 1 in the width direction, i.e. two the first truck cranes 2 are located at the side along its length of lower layer's vestibule semi-monolithic 1
To the both sides of the width direction at middle part, the projection of the arm axis of the first truck crane 2 on ground is vertical with the span direction of vestibule,
It is its middle part along its length at the span centre of vestibule in the present invention.Upper layer vestibule main couple can make lower part during the installation process
Vestibule will camber become smaller, to avoid during installing upper layer vestibule lower layer's vestibule from continuing to sink, in splicing assemble lower layer
Installation is used to support the falsework of vestibule top plate, falsework 3 at the span centre of lower layer's vestibule semi-monolithic 1 when vestibule semi-monolithic
It is made by H profile steel.After the splicing of lower layer's vestibule semi-monolithic 1 is completed, falsework is removed.In the present embodiment, lower layer's vestibule
For 60 tons or less than 60 tons, the mounting height of lower layer's vestibule semi-monolithic 1 is 30 meters for the quality control of semi-monolithic 1.Since vestibule is adopted
Take upper layer and lower layer layering lifting, in assembly in view of single layer it is whole in place after since section is small deform big, lower layer's vestibule half
Whole 1 springing height is the 3 ‰ of its span, should strictly control lower layer's vestibule half after its single-piece geometric dimension of repetition measurement before assembly
Whole 1 length, camber and lateral bending, the stringent assembled geometric accuracy of control.The splicing of lower layer's vestibule semi-monolithic 1 is completed
Afterwards, it is horizontally arranged on the ground, the center of lower layer's vestibule semi-monolithic 1 is located at the span centre of vestibule, and the center between two stands 3
There is angle, i.e., during lower layer's vestibule semi-monolithic 1 is with vestibule span centre point between line and the length direction of lower layer's vestibule semi-monolithic 1
The heart is obliquely arranged horizontally in close to the root of two holders 3.The tonnage of first truck crane 2 is 160 tons.In the present embodiment
In, lower layer's vestibule is box-structure, and vestibule top plate is provided at the top of lower layer's vestibule, is provided in the bottom of lower layer's vestibule logical
Corridor bottom plate.
C, after the completion of waiting for the construction of 3 lower concrete of holder, the foundation pit backfill of 3 bottom of holder is finished, utilizes two first
Both sides at 2 hook block lower layer vestibule semi-monolithic of truck crane, 1 span centre, and lower layer's vestibule semi-monolithic 1 is lifted to the top for being placed into holder 3
Second truck crane is selected at end, utilizes the position of the second truck crane adjustment lower layer vestibule semi-monolithic 1.Lower layer's vestibule semi-monolithic 1
Weight it is larger, high in this way, big, weight steel construction installed on ground it is integral, by the first truck crane 2 disposably lifting by it just
Position is conducive to improve efficiency, accelerates installation progress, ensures installation quality, reduces security risk.The tonnage of second truck crane is 70
Ton.Suspension centre should be reasonably selected according to lifting span and hoisting weight when being lifted to lower layer's vestibule semi-monolithic 1, due to this hair
Bright lower layer's vestibule be box-structure, the structural focus of lower layer's vestibule in its center, the full symmetric arrangement bar in both ends in assembly
Part.The lifting point of general Traverse truss is selected on top boom, this vestibule is selected on lower boom.That is every first truck crane 2 is hung
Hook is located at the surface of respective side at 1 span centre of lower layer's vestibule semi-monolithic, 2 corresponding lower layer's vestibule semi-monolithic of each first truck crane
1 lifting point is two, and the suspension hook of each first truck crane 2 is fixedly connected by steel wire rope with two lifting points, Mei Ge
Angle between two steel wire ropes of one truck crane 2 is equal to or less than 60 °, i.e. every 2 corresponding two lifting of the first truck crane
Point is respectively positioned on the both sides along span direction at the span centre of lower layer's vestibule semi-monolithic 1, and the lifting point of lower layer's vestibule semi-monolithic 1 is divided equally
Cloth is on the lower boom of its respective side.Every 8 meters of length of steel rope.This knockdown Hoisting Program of upper layer vestibule is conducive to carry
High crane utilization rate is saved machine-team and is taken.Each section of lifting point of upper layer vestibule main couple is arranged on its lower boom, thereon
It is easily deformed after H profile steel stress, steel plate can be used and reinforced as gusset, when metal binding wire rope is lined with sleeper, steel wire rope again
It is protected with the truss girder contact position pipe skin of each section of main couple of upper layer vestibule.The lifting point position of the present invention is reasonable, Ke Yitong
The lifting for completing large-scale component using the truck crane of smaller tonnage is crossed, preferable economic benefit is achieved.
D, preparation and vestibule top plate is installed:Vestibule top plate is made according to the size of vestibule, utilizes two first in step b
Vestibule top plate is lifted into the top of lower layer's vestibule semi-monolithic 1 by truck crane 2, and coordinates adjustment vestibule top plate by the second truck crane
Position, vestibule top plate is fixedly connected with the top of lower layer vestibule semi-monolithic 1 later.
E, by upper layer vestibule main couple be divided into three sections make and transport to construction site, be located at upper layer vestibule main couple along across
The main couple section for spending direction both ends is upper layer vestibule end main couple, is located at master of the upper layer vestibule main couple in the middle part of span direction
Truss section is main couple among the vestibule of upper layer, selects a third truck crane to be placed on vestibule top plate, utilizes third truck crane
Two sections of upper layers vestibule end main couple is lifted respectively to corresponding position on vestibule top plate, the tonnage of third truck crane is 25
Ton.Main couple among the vestibule of upper layer is lifted to vestibule top plate using the second truck crane, by upper layer vestibule end main couple and
Weld together with lower layer vestibule after main truss rack position adjustment splicing is good among upper layer vestibule, by 8 meters of height when being designed due to vestibule
Calculated rigidity is spent, installation layered carries out, therefore is 3 ‰ by code requirement arch camber value when vestibule making, and vestibule arch camber amount reaches
To 160mm, that is, the springing height for splicing the upper layer vestibule main couple of completion is the 3 ‰ of its span.Upper layer vestibule main couple makes
When reserved splicing size to be adjusted.Coupling beam and tie-rod of the installation for enhancing its intensity on the vestibule main couple of upper layer.
In the present embodiment, lower layer's vestibule is box-structure, and upper layer vestibule is truss structure.The span of large span vestibule in the present invention is big
In 56 meters, the tonnage of usually said large automobile crane is equal to or more than 200 tons.
Claims (9)
1. a kind of installation method of bilayer large-span steel vestibule, which is characterized in that include the following steps:
A, correspond to the holder that support vestibule is equipped at the position at vestibule both ends on the ground, in mounting bracket to each
Frame bottom carries out the construction of concrete;
B, the middle part to lower layer's vestibule and bottom carry out splicing assembling, are assembled into an entirety, and it is logical that this is collectively referred to as lower layer
Corridor semi-monolithic selects identical first truck crane of two tonnages, this two first truck cranes to be located at lower layer's vestibule semi-monolithic
Span centre at both sides in the width direction;
C, after the completion of waiting for frame bottom concrete construction, the foundation pit backfill of frame bottom is finished, two first vapour are utilized
Vehicle suspension hook hangs the both sides at lower layer's vestibule semi-monolithic span centre, and lower layer's vestibule semi-monolithic lifting is placed into the top of holder, choosing
With second truck crane, the position of the second truck crane adjustment lower layer vestibule semi-monolithic is utilized;
D, preparation and vestibule top plate is installed:Vestibule top plate is made according to the size of vestibule, utilizes two described first in step b
The vestibule top plate is lifted into the top of lower layer's vestibule semi-monolithic by truck crane, and logical by second truck crane cooperation adjustment
Vestibule top plate is fixedly connected by the position of corridor top plate with the top of lower layer vestibule semi-monolithic later;
E, upper layer vestibule main couple is divided into three sections to make and transport to construction site, is located at upper layer vestibule main couple along span side
It is upper layer vestibule end main couple to the main couple section at both ends, is located at main couple of the upper layer vestibule main couple in the middle part of span direction
Section is main couple among the vestibule of upper layer, and a third truck crane is selected to be placed on vestibule top plate, using third truck crane by two
Section upper layer vestibule end main couple is lifted respectively to corresponding position on vestibule top plate, is led to upper layer using second truck crane
Main couple is lifted to vestibule top plate among corridor, and main truss rack position among upper layer vestibule end main couple and upper layer vestibule is adjusted
Weld together with lower layer vestibule after splicing is good;Coupling beam for enhancing its intensity is installed on the vestibule main couple of upper layer and is
Bar.
2. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that in stepb,
The quality control of lower layer's vestibule semi-monolithic is 60 tons or less than 60 ton.
3. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that in stepb,
After lower layer's vestibule semi-monolithic splicing is completed, it is horizontally arranged on the ground, the centre bit of lower layer's vestibule semi-monolithic
There is folder between the line of centres and the length direction of lower layer's vestibule semi-monolithic at the span centre of vestibule, and between two stands
Angle.
4. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that first vapour
The tonnage that vehicle is hung is 160 tons.
5. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that second vapour
The tonnage that vehicle is hung is 70 tons.
6. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that the third vapour
The tonnage that vehicle is hung is 25 tons.
7. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that in stepb,
The springing height of lower layer's vestibule semi-monolithic is the 3 ‰ of its span;
In step e, the springing height for splicing the upper layer vestibule main couple of completion is the 3 ‰ of its span.
8. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that in step c,
The suspension hook of every first truck crane is located at the surface of respective side at lower layer's vestibule semi-monolithic span centre, each first vapour
The lifting point that vehicle hangs corresponding lower layer's vestibule semi-monolithic is two, the suspension hook of each first truck crane by steel wire rope with
Two lifting points are fixedly connected, and the angle between two steel wire ropes of each first truck crane is described equal to or less than 60 °
The lifting point of lower layer's vestibule semi-monolithic is distributed on the lower boom of its respective side.
9. the installation method of bilayer large-span steel vestibule according to claim 1, which is characterized in that in stepb,
When splicing assembles lower layer's vestibule semi-monolithic, installation is used to support the interim of vestibule top plate at the span centre of lower layer's vestibule semi-monolithic
Holder.
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CN112124858A (en) * | 2020-09-22 | 2020-12-25 | 九州职业技术学院 | Waste coal mine corridor reinforcing method |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN112124858A (en) * | 2020-09-22 | 2020-12-25 | 九州职业技术学院 | Waste coal mine corridor reinforcing method |
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