CN112065062A - Construction method for hoisting and transporting basement water chilling unit - Google Patents
Construction method for hoisting and transporting basement water chilling unit Download PDFInfo
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- CN112065062A CN112065062A CN202010805314.4A CN202010805314A CN112065062A CN 112065062 A CN112065062 A CN 112065062A CN 202010805314 A CN202010805314 A CN 202010805314A CN 112065062 A CN112065062 A CN 112065062A
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- water chilling
- chilling unit
- carrying trolley
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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 invention discloses a construction method for hoisting and transporting a basement water chilling unit, which is characterized in that the position of a reserved hole is reasonably arranged and is close to the edge of a building, a truck-mounted crane is convenient to use, the water chilling unit is vertically hoisted to the basement by the truck-mounted crane and then is transported to an equipment foundation by an electric carrying trolley, wherein when the water chilling unit is transported to the edge of the equipment foundation, the upper and lower positions of a cushion block and the carrying trolley are exchanged, then the water chilling unit is transported to the equipment foundation, the horizontal movement of the water chilling unit is ensured, the construction is safer, compared with a method for hoisting by matching a winch with a pulley block in the traditional construction method, the construction safety can be improved, the operation is simple, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the field of water chilling unit hoisting construction, in particular to a construction method for hoisting and transporting a basement water chilling unit.
Background
The air conditioner main machine room of the public building is mostly arranged in a basement, and the water chilling unit is arranged in the main machine room. The water chilling unit is light about 10 tons and heavy more than 20 tons. The water chilling unit is mostly hung into the basement through a reserved hoisting opening, and the hoisting opening is sealed after the equipment is installed.
Wherein, some buildings are provided with buildings above the reserved hoisting port on the first floor, such as an undaria, and the like, so that a crane cannot be adopted to directly hoist the water chilling unit to the basement main machine room from the hoisting port. Generally, hoisting the device to an outdoor position close to a hoisting port by using a crane; then, horizontally transporting the water chilling unit to the position near a first-layer hoisting opening by using a plurality of winches and arranging corresponding pulley blocks; hoisting the water chilling unit by a hoisting system of a winch, translating the water chilling unit to the upper part of a hoisting port in the air, and descending the water chilling unit to the basement; and a chute is arranged beside the equipment foundation, and the water chilling unit is horizontally transported to the equipment foundation of the air-conditioning main unit room by a winch and a pulley block.
The construction method has the following problems: in the hoisting and transporting process, the structure above the ground is required to bear the load, a hoisting scheme is required to be specially formulated, and the construction risk is high; multiple winches need to operate in a coordinated mode, a pulley system needs multiple reliable fixed points, and a main hoisting point needs structural bearing, which relate to construction safety; a chute on which a foundation is required to be arranged; in addition, the pulley running rope is arranged on the ground and is crossed with the operation of personnel, so that the potential safety hazard is high; in the whole operation process, the labor intensity of operators is very high; the hoisting and transporting efficiency is lower.
Therefore, a new construction mode is urgently needed, potential safety hazards are eliminated, and the effects of simplicity and convenience in operation, safety and high efficiency are achieved.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a construction method for hoisting and transporting a basement water chilling unit, which can improve the construction safety.
According to the embodiment of the invention, the construction method for hoisting and transporting the basement water chilling unit is provided, and comprises the following steps:
s100, arranging a reserved hole serving as a hoisting port, wherein the reserved hole is arranged close to the edge of a building, a partition wall is arranged outside the reserved hole, and the partition wall is constructed after hoisting is finished;
s200, using a truck-mounted crane, moving the truck-mounted crane to the outer side of the reserved hole, and firmly supporting the truck-mounted crane;
s300, vertically hoisting a water chilling unit to a basement through the reserved hole by the truck-mounted crane, wherein the water chilling unit is arranged right below the reserved hole;
s400, horizontally transporting the water chilling unit to an equipment foundation by using the electric carrying trolley, arranging a cushion block below the water chilling unit, wherein the height of the cushion block is not less than that of the equipment foundation, exchanging the upper and lower positions of the cushion block and the electric carrying trolley when the water chilling unit is transported to the edge of the equipment foundation, and then transporting the water chilling unit to the equipment foundation.
The construction method of the water chilling unit for hoisting and transporting the basement at least has the following beneficial effects: the position of the reserved hole is reasonably arranged, the position is close to the edge of a building, the use of the truck-mounted crane is convenient, the water chilling unit is vertically hoisted to the basement through the truck-mounted crane firstly, then the water chilling unit is transported to the equipment foundation through the electric carrying trolley, when the water chilling unit is transported to the edge of the equipment foundation, the upper position and the lower position of the cushion block and the carrying trolley are exchanged, then the water chilling unit is transported to the equipment foundation, the horizontal movement of the water chilling unit is guaranteed, the construction is safer, compared with a method of hoisting through the winch matched with the pulley block in the traditional construction method, the construction safety can be improved, the operation is simple, and the construction efficiency is improved.
According to the construction method of the water chilling unit for hoisting and transporting the basement, provided by the embodiment of the invention, two sets of electric carrying trolleys are respectively a first carrying trolley and a second carrying trolley, two corresponding cushion blocks are respectively a first cushion block and a second cushion block, the first carrying trolley and the first cushion block are arranged at one end of the water chilling unit, the second carrying trolley and the second cushion block are arranged at the other end of the water chilling unit, and the step S400 comprises the following steps:
s410, transporting the water chilling unit to the edge of the equipment foundation from the position right below the reserved hole, wherein in the transporting process, the first cushion block is arranged between the first carrying trolley and the water chilling unit, and the second cushion block is arranged between the second carrying trolley and the water chilling unit;
s420, transporting the water chilling unit to the equipment foundation from the edge of the equipment foundation, wherein the step S420 comprises the following steps;
s421, exchanging the positions of the first carrying trolley and the first cushion block to enable the first carrying trolley to be above the first cushion block, wherein the first cushion block is close to the equipment foundation;
s422, the first carrying trolley and the second carrying trolley move simultaneously to transport the water chilling unit, the first cushion block is removed after the first carrying trolley moves to the equipment foundation, and the first carrying trolley and the second carrying trolley continue to move until the second carrying trolley is close to the equipment foundation;
s423, exchanging the positions of the second carrying trolley and the second cushion block to enable the second carrying trolley to be above the second cushion block, wherein the second cushion block is close to the equipment foundation;
s424, the first carrying trolley and the second carrying trolley move simultaneously to transport the water chilling unit until the water chilling unit reaches an installation position;
s425, removing the first carrying trolley and the second carrying trolley.
According to the construction method of the water chilling unit for hoisting and transporting the basement, in the step S421, a base plate is arranged between the first carrying trolley and the first cushion block in a padded mode, and the base plate extends to the equipment foundation.
According to the construction method of the water chilling unit for hoisting and transporting the basement, in the step S423, a base plate is arranged between the second carrying trolley and the second cushion block in a padded mode, and the base plate extends to the equipment foundation.
According to the construction method of the water chilling unit for hoisting and transporting the basement, the height of the cushion block is 2-5 mm higher than that of the equipment foundation.
According to the construction method for hoisting and transporting the basement water chilling unit, the reserved hole is formed in the position close to the fire fighting passage or the non-basement area, and the truck-mounted crane enters the side of the reserved hole through the fire fighting passage or the non-basement area.
According to the construction method of the water chilling unit for hoisting and transporting the basement, the clearance above the reserved hole is higher than the maximum height of the water chilling unit by more than 2 meters, and the floor slab steel bars extending to the reserved hole are bent downwards by 90 degrees before the step S300.
According to the construction method of the water chilling unit for hoisting and transporting the basement, the clearance above the reserved hole is higher than the maximum height of the water chilling unit by more than 3 meters, and the floor slab steel bars extending to the reserved hole are bent upwards by 90 degrees before the step S300.
According to the construction method of the water chilling unit for hoisting and transporting the basement, the net size of the reserved hole is larger than the external plane size of the water chilling unit by more than 1 meter.
According to the construction method of the water chilling unit for hoisting and transporting the basement, in the step S200, when the water chilling unit is erected along with the crane, the erecting position is arranged on the concrete column or the structural crossbeam.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is an elevation view of a hoisting construction according to an embodiment of the present invention;
FIG. 2 is a front view of a chiller according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a preformed hole and a floor slab reinforcement according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first state structure of a horizontal transport water chilling unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second state structure of the horizontal transport water chilling unit according to the embodiment of the invention;
FIG. 6 is a schematic diagram of a third state structure of the horizontal transport water chilling unit according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of a fourth state structure of the horizontal transport water chilling unit according to the embodiment of the present invention;
FIG. 8 is a schematic diagram of a fifth state of the horizontal transport chiller according to the embodiment of the present invention;
FIG. 9 is a schematic diagram of a sixth state of the horizontal transport chiller according to the embodiment of the present invention;
reference numerals: the water chilling unit comprises a water chilling unit 10, an equipment foundation 20, a reserved hole 30, a truck-mounted crane 40, floor slab steel bars 50, a first carrying trolley 61, a second carrying trolley 62, a first cushion block 71, a second cushion block 72 and a cushion plate 80.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, an embodiment of the invention provides a construction method for hoisting and transporting a basement water chilling unit, which comprises the following steps:
s100, arranging a reserved hole 30 as a hoisting port, arranging the reserved hole 30 close to the edge of a building, and constructing the partition wall after hoisting is finished, wherein the outer side of the reserved hole 30 is a partition wall.
Referring to fig. 3, in some embodiments, when the clearance above the reserved hole 30 is more than 2 m higher than the maximum height of the chiller 10, the floor slab reinforcing bars 50 extending to the reserved hole 30 are bent downward by 90 degrees. The floor slab reinforcing bars 50 are bent downward to ensure the net space for subsequent hoisting, and the reinforcing bars are prevented from bending upward to reduce the hoisting net height. The reserved length of floor slab rebar 50 must meet the requirements for a specified lap length and the inside diameter of the bend arc is no less than 6 times the diameter of the rebar when bent.
In other embodiments, when the clearance above the reserved hole 30 is higher than the maximum height of the chiller 10 by more than 3 meters, the floor slab steel bar 50 extending to the reserved hole 30 can be bent upwards by 90 degrees, so as to facilitate the operation.
In this embodiment, the net size of the preformed hole 30 is larger than the external dimension of the water chilling unit 10 by more than 1 meter, so as to ensure that the floor slab reinforcing steel bar 50 has sufficient preformed length and bending inner diameter, and the reinforcing steel bar is connected with sufficient connection strength in the later period.
S200, using the truck-mounted crane 40, moving the truck-mounted crane 40 to the outer side of the reserved hole 30, and firmly supporting. When the crane is erected, the erecting position is arranged on the concrete column or the structural crossbeam so as to ensure that the erection is firm, the bearing capacity should be checked, and if the bearing capacity is insufficient, corresponding reinforcement should be carried out, and subsequent hoisting operation can be carried out.
In this embodiment, reserved hole 30 is also provided near a fire passage or non-basement area through which truck-mounted crane 40 passes to access reserved hole 30.
S300, vertically hoisting the water chilling unit 10 to the basement through the reserved hole 30 through the truck-mounted crane 40, wherein the water chilling unit 10 is located right below the reserved hole 30.
The outer side of the reserved hole 30 is not a shear wall, but is a partition wall, and construction can be performed after the water chilling unit 10 is hoisted, so that a space for hoisting the water chilling unit 10 by the truck-mounted crane 40 can be reserved at the partition wall, and hoisting is facilitated.
Four suspension ropes are adopted during hoisting, and the elevation angle of each suspension rope is about 45 degrees. If the appearance of the water chilling unit 10 is special, the lifting lugs are high, the lifting ropes are directly hung, and the lifting height is insufficient, then a lifting frame can be arranged to reduce the lifting height.
S400, horizontally transporting the water chilling unit 10 to the equipment foundation 20 by using the electric carrying trolley, wherein the electric carrying trolley can be an electric carrying small tank. And a cushion block is arranged below the water chilling unit 10, the height of the cushion block is not less than that of the equipment foundation 20, when the water chilling unit 10 is transported to the edge of the equipment foundation 20, the upper and lower positions of the cushion block and the electric carrying trolley are exchanged, and then the water chilling unit 10 is transported to the equipment foundation 20. Specifically, the height of the cushion block is 2-5 mm higher than that of the equipment foundation 20.
In this embodiment, there are two sets of electric transporting carriages, which are the first transporting carriage 61 and the second transporting carriage 62 respectively, there are two corresponding spacers, which are the first spacer 71 and the second spacer 72 respectively, the first transporting carriage 61 and the first spacer 71 are disposed at the front end of the water chilling unit 10, the second transporting carriage 62 and the second spacer 72 are disposed at the rear end of the water chilling unit 10, and the step S400 includes the following steps:
s410, referring to FIG. 4, the water chilling unit 10 is transported to the edge of the equipment foundation 20 from the position right below the reserved hole 30, in the transportation process, the first cushion block 71 is arranged between the first carrying trolley 61 and the water chilling unit 10 in a padded mode, and the second cushion block 72 is arranged between the second carrying trolley 62 and the water chilling unit 10 in a padded mode.
The cushion block can play an anti-skidding role, the water chilling unit 10 is prevented from skidding in the moving process of the electric carrying trolley, particularly when the electric carrying trolley is started or stopped, and the cushion block can be made of square wood.
S420, referring to fig. 5 to 9, the water chilling unit 10 is transported to the equipment base 20 from the edge of the equipment base 20, and specifically, the step S420 includes the following steps.
S421, referring to fig. 5, the positions of the first transporting cart 61 and the first block 71 are exchanged, so that the first transporting cart 61 is above the first block 71, and the first block 71 is close to the equipment foundation 20. And during exchange, the hydraulic jack is used for jacking the front end of the base of the water chilling unit 10 by 5mm, and the hydraulic jack is descended after the operation is finished.
S422, referring to FIG. 6, the first carrying trolley 61 and the second carrying trolley 62 move simultaneously to transport the water chilling unit 10, after the first carrying trolley 61 moves to the equipment foundation 20, the first cushion block 71 is removed, and the first carrying trolley 61 and the second carrying trolley 62 continue to move until the second carrying trolley 62 is close to the equipment foundation 20.
S423, referring to fig. 7, the positions of the second carriage 62 and the second head block 72 are exchanged such that the second carriage 62 is above the second head block 72 and the second head block 72 is adjacent to the equipment foundation 20. And during exchange, the rear end of the base of the water chilling unit 10 is jacked up for 5mm by using a hydraulic jack, and the hydraulic jack is lowered after the operation is finished.
S424, referring to fig. 8, the first carrying trolley 61 and the second carrying trolley 62 move simultaneously to transport the chiller 10 until the chiller 10 reaches the installation position on the equipment foundation 20.
S425. referring to fig. 9, the chiller 10 is jacked up by 5mm using the hydraulic jacks, the first and second carrying carts 61 and 62 are removed, and the chiller 10 is accurately positioned.
By adopting the steps S410 to S425, the water chilling unit 10 is accurately transported to the installation position of the equipment foundation 20, and the water chilling unit 10 is horizontally moved in the whole process through the arrangement of the front and rear positions of the first cushion block 71 and the first carrying trolley 61, and the arrangement of the second cushion block 72 and the second carrying trolley 62, and the exchange of the upper and lower positions in the transportation process, so that the construction is safer, and most of the moving distance in the moving process is at least one cushion block pad arranged between the carrying trolley and the water chilling unit 10, so that the water chilling unit 10 can be prevented from slipping, and the transportation safety is improved.
Further, in some embodiments, in step S421, the backing plate 80 is disposed between the first carriage 61 and the first pad block 71, and the backing plate 80 extends onto the equipment foundation 20, so as to ensure that the first carriage 61 can smoothly transit from the first pad block 71 to the equipment foundation 20, thereby improving the construction safety.
In some embodiments, a pad 80 is padded between the second cart 62 and the second pad block 72 in step S423, and the pad 80 extends to the equipment foundation 20 to ensure that the second cart 62 can smoothly transition from the second pad block 72 to the equipment foundation 20.
According to the construction method for hoisting and transporting the basement water chilling unit, the position of the reserved hole 30 is reasonably arranged, the position is close to the edge of a building, the truck-mounted crane 40 is convenient to use, the water chilling unit 10 is vertically hoisted to the basement through the truck-mounted crane 40 firstly, then the water chilling unit 10 is transported to the equipment foundation 20 through the electric carrying trolley, when the water chilling unit 10 is transported to the edge of the equipment foundation 20, the upper position and the lower position of the cushion block and the carrying trolley are exchanged, then the water chilling unit 10 is transported to the equipment foundation 20, the water chilling unit 10 is guaranteed to horizontally move, construction is safer, compared with a method that a winch is matched with a pulley block for hoisting in a traditional construction method, construction safety can be improved, operation is simple, and construction efficiency is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A construction method for hoisting and transporting a basement water chilling unit is characterized by comprising the following steps:
s100, arranging a reserved hole serving as a hoisting port, wherein the reserved hole is arranged close to the edge of a building, a partition wall is arranged outside the reserved hole, and the partition wall is constructed after hoisting is finished;
s200, using a truck-mounted crane, moving the truck-mounted crane to the outer side of the reserved hole, and firmly supporting the truck-mounted crane;
s300, vertically hoisting a water chilling unit to a basement through the reserved hole by the truck-mounted crane, wherein the water chilling unit is arranged right below the reserved hole;
s400, horizontally transporting the water chilling unit to an equipment foundation by using the electric carrying trolley, arranging a cushion block below the water chilling unit, wherein the height of the cushion block is not less than that of the equipment foundation, exchanging the upper and lower positions of the cushion block and the electric carrying trolley when the water chilling unit is transported to the edge of the equipment foundation, and then transporting the water chilling unit to the equipment foundation.
2. The construction method of hoisting and transporting the basement water chilling unit according to claim 1, wherein there are two sets of electric carrying trolleys, namely a first carrying trolley and a second carrying trolley, and there are two corresponding blocks, namely a first block and a second block, the first carrying trolley and the first block are arranged at one end of the water chilling unit, and the second carrying trolley and the second block are arranged at the other end of the water chilling unit, and the step S400 includes the following steps:
s410, transporting the water chilling unit to the edge of the equipment foundation from the position right below the reserved hole, wherein in the transporting process, the first cushion block is arranged between the first carrying trolley and the water chilling unit, and the second cushion block is arranged between the second carrying trolley and the water chilling unit;
s420, transporting the water chilling unit to the equipment foundation from the edge of the equipment foundation, wherein the step S420 comprises the following steps;
s421, exchanging the positions of the first carrying trolley and the first cushion block to enable the first carrying trolley to be above the first cushion block, wherein the first cushion block is close to the equipment foundation;
s422, the first carrying trolley and the second carrying trolley move simultaneously to transport the water chilling unit, the first cushion block is removed after the first carrying trolley moves to the equipment foundation, and the first carrying trolley and the second carrying trolley continue to move until the second carrying trolley is close to the equipment foundation;
s423, exchanging the positions of the second carrying trolley and the second cushion block to enable the second carrying trolley to be above the second cushion block, wherein the second cushion block is close to the equipment foundation;
s424, the first carrying trolley and the second carrying trolley move simultaneously to transport the water chilling unit until the water chilling unit reaches an installation position;
s425, removing the first carrying trolley and the second carrying trolley.
3. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 2, wherein the construction method comprises the following steps: in step S421, a pad plate is disposed between the first carriage and the first pad block, and the pad plate extends to the equipment foundation.
4. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 2, wherein the construction method comprises the following steps: in step S423, a pad plate is disposed between the second carriage and the second pad block, and the pad plate extends to the equipment foundation.
5. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 2, wherein the construction method comprises the following steps: the height of the cushion block is 2-5 mm higher than that of the equipment foundation.
6. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 1, wherein the construction method comprises the following steps: the reserved hole is formed in the position close to a fire fighting passage or a non-basement area, and the truck-mounted crane enters the position beside the reserved hole through the fire fighting passage or the non-basement area.
7. The construction method of the water chilling unit for hoisting and transporting the basement according to any one of claims 1 to 6, wherein: the clearance above the reserved hole is higher than the maximum height of the water chilling unit by more than 2 meters, and before the step S300, the floor slab steel bar extending to the reserved hole is bent downwards by 90 degrees.
8. The construction method of the water chilling unit for hoisting and transporting the basement according to any one of claims 1 to 6, wherein: the clearance above the reserved hole is higher than the maximum height of the water chilling unit by more than 3 meters, and before the step S300, the floor slab steel bar at the reserved hole is bent upwards by 90 degrees.
9. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 1, wherein the construction method comprises the following steps: the net size of the reserved hole is larger than the outline plane size of the water chilling unit by more than 1 meter.
10. The construction method of the water chilling unit for hoisting and transporting the basement according to claim 1, wherein the construction method comprises the following steps: in the step S200, when the crane is erected, the erecting position is set on the concrete column or the structural girder.
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| CN202010805314.4A CN112065062B (en) | 2020-08-12 | 2020-08-12 | Construction method for hoisting and transporting basement water chilling unit |
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| CN112065062B (en) | 2021-11-30 |
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