CN111472555B - Hoisting method for steel truss of aerial swimming pool - Google Patents
Hoisting method for steel truss of aerial swimming pool Download PDFInfo
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- CN111472555B CN111472555B CN202010336374.6A CN202010336374A CN111472555B CN 111472555 B CN111472555 B CN 111472555B CN 202010336374 A CN202010336374 A CN 202010336374A CN 111472555 B CN111472555 B CN 111472555B
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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
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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
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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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
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a hoisting method of a steel truss of an aerial swimming pool, wherein a fixed framework and a pre-installed fixed frame are installed on the outer wall of a building in advance, and the hoisting method is technically characterized by comprising the following steps: the preparation method comprises the following steps: arranging an assembling jig frame between two adjacent buildings, and conveying the parts of the air swimming pool steel truss to the assembling jig frame; step S1: assembling a steel truss on the assembling jig frame, and determining a lifting point according to the shape and the structural strength of the steel truss; step S2: a lifting appliance is arranged on a lifting point of the steel truss; step S3: arranging a hydraulic lifter on one opposite side of the two buildings according to the position of a lifting point, wherein the vertical falling point of the steel strand on the hydraulic lifter is opposite to the lifting appliance on the steel truss; step S4: and respectively connecting the steel strands with a lifting appliance at the top of the air swimming pool steel truss. The hoisting method simplifies the installation steps of the aerial swimming pool, shortens the installation period of the aerial swimming pool and reduces the installation cost of the aerial swimming pool by directly hoisting the whole steel truss.
Description
Technical Field
The invention relates to the technical field of an aerial swimming pool, in particular to a hoisting method of a steel truss of the aerial swimming pool.
Background
The present air swimming pool is a swimming pool suspended between two buildings.
The existing aerial swimming pool is installed at high altitude in the installation process generally through a direct assembly mode, and the installation mode needs to build a support column at the bottom of the aerial swimming pool in the process of building the aerial swimming pool and is used for realizing the suspension support of the aerial swimming pool in the building process, so that the aerial swimming pool has enough structural strength in the building process and is not easy to collapse.
However, in the actual installation process, the whole support post needs to be removed after the installation is completed, and the installation is complicated.
Disclosure of Invention
The invention aims to provide a method for hoisting a steel truss of an aerial swimming pool, which simplifies the installation steps of the aerial swimming pool, shortens the installation period of the aerial swimming pool and reduces the installation cost of the aerial swimming pool.
The above object of the present invention is achieved by the following means.
A method for hoisting a steel truss of an aerial swimming pool is characterized in that a fixed frame and a pre-installed fixed frame are installed on an outer wall of a building in advance, and the method comprises the following steps:
the preparation method comprises the following steps: arranging an assembling jig frame between two adjacent buildings, and conveying the parts of the air swimming pool steel truss to the assembling jig frame;
step S1: assembling a steel truss on the assembling jig frame, and determining a lifting point according to the shape and the structural strength of the steel truss;
step S2: a lifting appliance is arranged on a lifting point of the steel truss;
step S3: arranging a hydraulic lifter on one opposite side of the two buildings according to the position of a lifting point, wherein the vertical falling point of the steel strand on the hydraulic lifter is opposite to the lifting appliance on the steel truss;
step S4: respectively connecting the steel strands with a lifting appliance at the top of the steel truss of the aerial swimming pool;
step S5: the hydraulic lifters work synchronously, the integral steel truss is lifted to one hundred millimeters away from the assembling jig frame, the hydraulic lifters are locked, and the steel truss stands still in the air for 12 hours;
step S6: detecting the hydraulic lifter and the steel truss, and continuously and synchronously lifting the hydraulic lifter after the detection is correct;
step S7: when the whole body is synchronously lifted to a distance of about 200mm from the designed elevation, the frequency of a pump station is reduced, the hydraulic lifter performs fine adjustment operation, the steel truss is accurately positioned, the lifting is stopped, and the hydraulic cylinder is locked and is static;
step S8: the steel truss is welded with the pre-installed fixing frames on the buildings at two sides in an opposite mode, and the rod pieces are supplemented after installation;
step S9: and after the steel truss is welded and installed in the opposite opening mode and is qualified through inspection, the hydraulic lifter is unloaded, and the lifting equipment and the temporary structure are dismantled.
Through adopting above-mentioned technical scheme, whole steel truss is direct to be hoisted through hydraulic lifting mechanism, compare in the direct overhead swimming pool of building, above-mentioned mounting means can be directly hoist and mount the steel truss to between two buildings, and directly weld the pre-installation mount on steel truss and the both sides building, realize fixing between steel truss and the both sides building, it is more convenient to install, shortened the construction cycle to the swimming pool steel truss in air, construction cost has been practiced thrift, the performance of enterprises has been promoted to a certain extent.
The invention is further configured to: the steel truss is located hoisting point one side and is provided with infrared ray receiving component, the bottom of hydraulic pressure lifting mechanism is provided with the infrared emitter who corresponds with infrared ray receiving component, works as infrared emitter receives during the signal of infrared ray receiving component, the position of the steel strand wires on the hydraulic pressure lifting mechanism is corresponding with the position of hoisting point, during step S3, the position of adjustment hydraulic pressure lifting mechanism for when being located the infrared emitter of hydraulic pressure lifting mechanism bottom can receive the signal of installing the infrared ray receiving component in steel truss hoisting point position, it is fixed with hydraulic pressure lifting mechanism and installation frame.
By adopting the technical scheme, the axial positioning between the hydraulic lifter and the lifting appliance arranged on the lifting point is facilitated by arranging the infrared emitter and the infrared emitting assembly, the inclination angle of the steel strand is smaller after the steel strand on the hydraulic lifter is fixed between the hydraulic lifter and the lifting appliance, so that the movement of the hydraulic lifter in the process of lifting the steel truss is more stable, the infrared emitter arranged on the hydraulic lifter emits infrared rays after the hydraulic lifter is installed, a worker wears special glasses in the process of moving the steel truss to enable the infrared rays emitted by the infrared emitter to be visible to the naked eye, then the lifting device is commanded to move the steel truss, the movement is stopped when all infrared receivers arranged on the steel truss can receive the infrared rays, and the steel truss is conveniently moved to the required position to be placed, the time required by the position adjustment of the steel truss is shortened.
The invention is further configured to: the infrared receiving assembly comprises an infrared receiver and a connecting piece used for installing the infrared receiver, a lifting appliance for installing the connecting piece is arranged at the top of the steel truss, and the connecting piece is installed in the lifting appliance in the step S2.
By adopting the technical scheme, the installation between the infrared receiver and the lifting appliance is facilitated.
The invention is further configured to: the lifting appliance is provided with an anchorage connector for connecting the steel strands, and the distance between the axis of the anchorage connector and the infrared receiver is equal to the distance between the axis of the hydraulic lifter and the infrared transmitter.
Through adopting above-mentioned technical scheme for infrared receiver's angle can be adjusted according to the place difference of reality, ensures that infrared receiver keeps at the horizontality with the in-process that infrared emitter aimed at.
The invention is further configured to: the hanger is positioned at the bottom of the anchor connector and is fixedly provided with a pressing piece, and the pressing piece is abutted against a pressing plate at the bottom of the anchor connector.
By adopting the technical scheme, the installation between the lifting appliance and the anchor device connector is facilitated.
The invention is further configured to: the bottom of the connecting piece is provided with a ball head, the top of the lifting appliance is provided with a ball head groove for the ball head to be embedded into, and the ball head is embedded into the ball head groove.
By adopting the technical scheme, the adjustment of the position of the connecting piece is facilitated.
The invention is further configured to: and a first circular bubble level meter is arranged at one side of the top of the connecting piece, which is positioned on the infrared receiver, and the position of the connecting piece is adjusted in the step S2, so that the bubble on the circular bubble level meter at the top of the connecting piece is positioned at the center of the first circular bubble level meter.
Through adopting above-mentioned technical scheme, made things convenient for the position control with the connecting piece to become the horizontality to it is higher to make infrared emitter and infrared receiver aim at the precision at the in-process of aiming at, thereby has further reduced the inclination of steel strand wires at the in-process that promotes, makes the steel truss more stable at the in-process motion that promotes.
The invention is further configured to: one side of connecting piece is provided with the screw thread install in the hoist lateral wall just extends into the retaining member of bulb inslot, during step S2, the retaining member extends to in the bulb inslot, with the bulb compresses tightly.
Through adopting above-mentioned technical scheme, after the connecting piece was adjusted to the horizontal position, through the retaining member with locking between connecting piece and the hoist to reduced the steel truss at the in-process of adjusting position and hoist and mount, the skew takes place for the position of connecting piece leads to having made things convenient for locking between connecting piece and the hoist.
The invention is further configured to: and a second circular bubble level gauge is arranged at the top of the hydraulic lifter, and in the step S3, the position of the hydraulic lifter is adjusted so that the bubble of the second circular bubble level gauge at the top of the hydraulic lifter is located at the center of the second circular bubble level gauge.
Through adopting above-mentioned technical scheme, made things convenient for the position control with hydraulic pressure lifting mechanism to the horizontality to further promoted the stability of hydraulic pressure lifting mechanism promotion in-process.
In conclusion, the beneficial technical effects of the invention are as follows:
by arranging the hydraulic lifter and the lifting appliance, the integral lifting of the steel truss can be realized, and the construction period is shortened;
by arranging the infrared receiving assembly and the infrared transmitter, the hydraulic lifter and the lifting appliance at the top of the steel truss can be conveniently positioned, and the positioning precision between the hydraulic lifter and the lifting appliance at the top of the steel truss is improved, so that the lifting precision of the whole steel truss in the lifting process of the hydraulic lifter is improved to a certain extent, and the lifting of the steel truss is more stable;
through setting up first circular bubble spirit level for infrared receiver's receiving face can keep the level, and makes the location between the two more accurate.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a schematic view of a partial explosion structure of the present invention.
Fig. 3 is a partial structural schematic diagram of the present invention.
Fig. 4 is a schematic view of a partial explosion structure in another aspect of the present invention.
In the figure, 1, a fixed frame; 2. pre-installing a fixing frame; 3. assembling a jig frame; 4. a steel truss; 5. a spreader; 51. a fixed block; 511. mounting a through hole; 512. a ball head groove; 55. an anchor connector; 551. fixing the anchor plate; 552. an extrusion head; 553. a compression member; 54. a locking member; 6. an infrared receiving component; 61. an infrared receiver; 62. a connecting member; 621. a ball head; 622. a first circular bubble level; 7. a hydraulic lifter; 71. a second circular bubble level; 72. an infrared emitter; 73. and (4) steel strands.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to the attached drawing 1, the method for hoisting the steel truss of the aerial swimming pool comprises the following steps that a fixed frame 1 and a pre-installed fixed frame 2 are installed on the outer wall of a building in advance:
the preparation method comprises the following steps: an assembling jig frame 3 is arranged between two adjacent buildings, and parts of the air swimming pool steel truss 4 are conveyed to the assembling jig frame 3;
step S1: assembling the steel truss 4 on the assembling jig frame 3, and determining a lifting point according to the shape and the structural strength of the steel truss 4.
Referring to fig. 2, step S2: and a lifting appliance 5 is arranged on a lifting point of the steel truss 4, the lifting appliance 5 is directly welded and fixed on the steel truss 4, and structural reinforcing ribs are symmetrically arranged on two sides of the lifting appliance 5.
The lifting appliance 5 is provided with a fixing block 51 and fixing support legs 52 fixed on two sides of the fixing block 51, a mounting through hole 511 is formed in the top of the fixing block 51, a spherical groove 512 is formed in one side of the fixing block 51, the infrared receiving assembly 6 is mounted in the spherical groove 512, the infrared receiving assembly 6 comprises a connecting piece 62 and an infrared receiver 61 fixed on the top of the connecting piece 62, the infrared receiver 61 is connected with an external control circuit, a ball 621 embedded in the spherical groove 512 is arranged at the bottom of the connecting piece 62, and a first circular bubble level 622 is arranged on the other side, located on the infrared receiver 61, of the connecting piece 62.
A locking member 54 is further installed on one side of the hanger 5 through threads, the end of the locking member 54 extends into the spherical groove, the end of the locking member 54 abuts against the ball head 621, in this embodiment, the locking member 54 is a bolt, hard rubber is arranged on one side of the locking member 54 facing the ball head 621, and anti-skid stripes are arranged on the side wall of the hard rubber.
After the steel truss 4 is assembled, the height of the steel truss 4 is adjusted, so that the steel truss 4 can be kept horizontally arranged, and then the position of the connecting piece 62 is adjusted, so that bubbles of the first circular bubble level 622 are located at the position of the circle center, and the connecting piece 62 is ensured to be horizontally arranged.
Referring to fig. 1 and 3, step S3: the hydraulic lifting device 7 is arranged on one side, opposite to the two buildings, of the lifting point position, the hydraulic lifting device 7 is installed on the fixed frame 1, the hydraulic lifting device 7 is TLJ-2000 type hydraulic lifting device 7, an infrared emitter 72 is arranged at the bottom of the hydraulic lifting device 7, the distance between the infrared emitter 72 and the circle center of the hydraulic lifting device 7 is equal to the distance between the infrared receiver 61 and the circle center of the installation through hole 511 in the lifting appliance 5, and the infrared emitter 72 is connected with an external control circuit.
The top of the hydraulic lifter 7 is provided with a second circular bubble level 71 so that the hydraulic lifter 7 is easily adjusted to a horizontal state during installation.
Referring to fig. 2 and 3, when the infrared ray of the infrared ray emitter 72 can irradiate the infrared ray receiver 61, the hydraulic lifter 7 is fixed to the fixed frame 1 on the building, and the vertical falling point of the steel strand 73 on the hydraulic lifter 7 is opposite to the hanger 5 on the steel truss 4.
Referring to fig. 4, step S4: an anchor connector 55 is arranged in the installation through hole 511 on the lifting appliance 5, the anchor connector 55 is placed in the installation through hole 511, a fixed anchor plate 551 is arranged at the bottom of the steel strand 73 after the steel strand 73 on the hydraulic lifter 7 passes through the anchor connector 55, and the bottom of the steel strand 73 extends out of the fixed anchor plate 551 and is fixed through a squeezing head 552.
A compression member 553 is disposed at the bottom of mounting aperture 511, and a clearance exists between compression member 553 and both anchor plate 551 and anchor connector 55, such that relative rotation of anchor plate 551 and anchor connector 55 when not elevated is possible.
In this embodiment, the pressing member 553 is a channel steel, the channel steel is welded and fixed to the fixing block 51 at the top of the lifting appliance 5, a through hole for the steel strand to pass through is formed in the center of the channel steel, the steel strand passes through the through hole, a fixing anchor plate 551 is fixed to the bottom of the pressing member 553, and then the bottom fixing extrusion head 552 of the fixing anchor plate 551 is used for connecting the steel strand and the lifting appliance 5.
In this step, in addition to using the channel steel as the pressing piece 553, a plurality of L-shaped pressing plates may be equivalently replaced along the installation through hole 511 at intervals in the circumferential direction, and the L-shaped pressing plates are welded and fixed to the hanger 5.
Referring to fig. 1, step S5: the hydraulic lifter 7 works synchronously, the integral steel truss 4 is lifted to be separated from the assembling jig frame by 3 hundred millimeters, the hydraulic lifter 7 is locked, and the steel truss 4 stands still in the air for 12 hours.
Step S6: and detecting the hydraulic lifter 7 and the steel truss 4, and continuously and synchronously lifting the hydraulic lifter 7 after detecting without errors.
Step S7: when the integral synchronous lifting is carried out to a distance of about 200mm from the designed elevation, the frequency of a pump station is reduced, the hydraulic lifter 7 carries out fine adjustment operation, the steel truss 4 is accurately positioned in place, the lifting is stopped, and the hydraulic cylinder is locked and is static.
Step S8: the steel truss 4 is welded with the pre-installed fixing frames 2 on the buildings at two sides in an opposite mode, and the rod pieces are supplemented after installation.
Step S9: and after the steel truss 4 is welded and installed in a butt joint mode and is qualified through inspection, the hydraulic lifter 7 is unloaded, and the lifting equipment and the temporary structure are dismantled.
In conclusion, the hoisting method for the steel truss 4 of the aerial swimming pool can directly hoist the whole steel truss 4 through the hydraulic lifter 7, compared with the method of directly building the aerial swimming pool in the air, the steel truss 4 can be directly hoisted between two buildings by the installation method, the steel truss 4 is directly welded with the pre-installation fixing frames 2 on the buildings on two sides, the steel truss 4 and the buildings on two sides are fixed, the installation is more convenient, the construction period of the steel truss 4 of the aerial swimming pool is shortened, the construction cost is saved, and the enterprise benefit is improved to a certain extent.
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 an aerial swimming pool steel truss hoist and mount method, building outer wall has installed fixed frame (1) and pre-installation mount (2) in advance, its characterized in that:
the preparation method comprises the following steps: an assembling jig frame (3) is arranged between two adjacent buildings, and parts of the air swimming pool steel truss (4) are conveyed to the assembling jig frame (3);
step S1: assembling a steel truss (4) on the assembling jig frame (3), and determining a lifting point according to the shape and the structural strength of the steel truss (4);
step S2: a lifting appliance (5) is arranged on a lifting point of the steel truss (4);
step S3: according to the method, a hydraulic lifter (7) is arranged on one side of the lifting point position opposite to two buildings, the vertical falling point of a steel strand (73) on the hydraulic lifter (7) is opposite to a lifting appliance (5) on a steel truss (4), an infrared receiving assembly (6) is arranged on one side of the lifting point position of the steel truss (4), an infrared transmitter (72) corresponding to the infrared receiving assembly (6) is arranged at the bottom of the hydraulic lifter (7), when the infrared transmitter (72) receives a signal of the infrared receiving assembly (6), the position of the steel strand (73) on the hydraulic lifter (7) corresponds to the position of the lifting point, the position of the hydraulic lifter (7) is adjusted, so that when the infrared transmitter (72) at the bottom of the hydraulic lifter (7) can receive the signal of the infrared receiving assembly (6) arranged at the lifting point position of the steel truss (4), fixing the hydraulic lifter (7) with the mounting frame;
step S4: the steel strand wires (73) are respectively connected with a lifting appliance (5) at the top of the air swimming pool steel truss (4);
step S5: the hydraulic lifters (7) work synchronously, the integral steel truss (4) is lifted to one hundred millimeters away from the assembling jig frame (3), the hydraulic lifters (7) are locked, and the steel truss (4) stands still in the air for 12 hours;
step S6: detecting the hydraulic lifter (7) and the steel truss (4), and continuously and synchronously lifting the hydraulic lifter (7) after the detection is correct;
step S7: when the whole body is lifted to 200mm from the designed elevation synchronously, the frequency of a pump station is reduced, the hydraulic lifter (7) performs fine adjustment operation, the steel truss (4) is accurately in place, the lifting is stopped, and the hydraulic cylinder is locked and is static;
step S8: the steel truss (4) is welded with the pre-installed fixing frames (2) on the buildings at two sides in an opposite way, and the rod piece is supplemented after the installation;
step S9: after the steel truss (4) is welded and installed in an opposite mode and qualified through inspection, the hydraulic lifter (7) is unloaded, and lifting equipment and a temporary structure are dismantled.
2. The method for hoisting the steel truss of the aerial swimming pool according to claim 1, wherein the method comprises the following steps: the infrared receiving assembly (6) comprises an infrared receiver (61) and a connecting piece (62) used for installing the infrared receiver (61), a lifting appliance (5) for installing the connecting piece (62) is arranged at the top of the steel truss (4), and in the step S2, the connecting piece (62) is installed in the lifting appliance (5).
3. The method for hoisting the steel truss of the aerial swimming pool according to claim 2, wherein the method comprises the following steps: an anchorage connector (55) for connecting the steel strand (73) is arranged on the lifting appliance (5), and the distance between the axis of the anchorage connector (55) and the infrared receiver (61) is equal to the distance between the axis of the hydraulic lifter (7) and the infrared emitter (72).
4. The method for hoisting the steel truss of the aerial swimming pool according to claim 3, wherein the method comprises the following steps: the bottom of the lifting appliance (5) positioned at the anchor connector (55) is provided with a pressing piece (553), and the pressing piece (553) is abutted to a pressing plate at the bottom of the anchor connector (55).
5. The method for hoisting the steel truss of the aerial swimming pool according to claim 2, wherein the method comprises the following steps: the bottom of the connecting piece (62) is provided with a ball head (621), the top of the lifting appliance (5) is provided with a ball head groove (52) for embedding the ball head (621), and the ball head (621) is embedded into the ball head groove (52).
6. The method for hoisting the steel truss of the aerial swimming pool according to claim 2, wherein the method comprises the following steps: a first circular bubble level (622) is arranged on one side of the top of the connecting piece (62) on the infrared receiver (61), and in the step S2, the position of the connecting piece (62) is adjusted so that the bubble on the circular bubble level on the top of the connecting piece (62) is located at the center of the first circular bubble level (622).
7. The method for hoisting the steel truss of the aerial swimming pool according to claim 5, wherein the method comprises the following steps: one side of the connecting piece (62) is provided with a locking piece (54) which is installed on the side wall of the lifting appliance (5) in a threaded mode and extends into the ball head groove (52), and in the step S2, the locking piece (54) extends into the ball head groove (52) and is pressed with the ball head (621).
8. The method for hoisting the steel truss of the aerial swimming pool according to claim 1, wherein the method comprises the following steps: a second circular bubble level (71) is arranged at the top of the hydraulic lifter (7), and in the step S3, the position of the hydraulic lifter (7) is adjusted so that the bubble of the second circular bubble level (71) at the top of the hydraulic lifter (7) is located at the center of the second circular bubble level (71).
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| CN202010336374.6A CN111472555B (en) | 2020-04-26 | 2020-04-26 | Hoisting method for steel truss of aerial swimming pool |
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| CN202010336374.6A CN111472555B (en) | 2020-04-26 | 2020-04-26 | Hoisting method for steel truss of aerial swimming pool |
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| CN112479010B (en) * | 2020-11-23 | 2023-01-24 | 中电建十一局工程有限公司 | Steel truss lifting device convenient and quick to lift and fix |
| CN112681147B (en) * | 2020-12-23 | 2022-10-18 | 蒋友富 | Box girder end structure convenient for pier mounting and pier mounting method |
| CN113279615A (en) * | 2021-06-11 | 2021-08-20 | 中建四局第一建筑工程有限公司 | Installation method and device for super high-rise air suspension acrylic swimming pool |
| CN114033223B (en) * | 2021-12-09 | 2023-02-03 | 中建四局第一建设有限公司 | Steel hanging platform under overhanging steel truss of ultrahigh air swimming pool and construction method thereof |
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| CN107012949A (en) * | 2017-05-10 | 2017-08-04 | 中国建筑第二工程局有限公司 | A kind of method for improving of large-span steel vestibule |
| CN110344501A (en) * | 2019-07-26 | 2019-10-18 | 广东建星建造集团有限公司 | A kind of construction method that Steel corridor is integrally promoted |
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