CN112627539B - Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method - Google Patents
Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method Download PDFInfo
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- CN112627539B CN112627539B CN202011428819.XA CN202011428819A CN112627539B CN 112627539 B CN112627539 B CN 112627539B CN 202011428819 A CN202011428819 A CN 202011428819A CN 112627539 B CN112627539 B CN 112627539B
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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
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
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Abstract
The invention provides a four-hole inverted siphon roof plate double-layer steel bar lifting, positioning and fixing device which comprises a plurality of adjustable lifting hooks, a fixed beam and an embedded part, wherein the embedded part is positioned in a bottom plate bin, a fixed door-shaped support frame is connected to the embedded part, the fixed beam is positioned above the support frame, the fixed beam is connected with the support frame, the plurality of adjustable lifting hooks are uniformly distributed on the fixed beam at intervals, and the adjustable lifting hooks are used for adjusting lifting positioning and fixing four-hole inverted siphon roof plate double-layer steel bars. The invention has simple structure, convenient and rapid installation and reliable fixation, is suitable for concrete pouring of the top plate of the large inverted siphon wall body, effectively solves the problem that the reinforcing steel frame of the porous inverted siphon top plate can sink and bend, can effectively ensure that the reinforcing steel bar trolley and the steel mould trolley come in and go out in sequence to form flow line operation, accelerates the construction progress, improves the working efficiency of working procedures and working hours, reduces the rework rate, accelerates the construction progress of inverted siphon concrete and saves the construction cost.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and a construction method.
Background
In the fields of water conservancy and hydropower engineering, municipal administration, channel engineering and the like, when a large channel passes through a river, inverted siphons are mostly adopted, a large porous inverted siphon wall body and a top plate are widely used for concrete lining by a single steel form trolley, steel bar manufacturing and installation, formwork erection and concrete pouring can be carried out only by utilizing the same steel form trolley, the concrete pouring construction period is long, and the steel form trolley occupies a long service life. In order to accelerate the large inverted siphon construction progress, the large inverted siphon is constructed in a flow process by adopting complete equipment of a steel bar trolley and a steel mould trolley, firstly, the steel bar trolley moves forwards after the steel bar trolley performs steel bar manufacturing and installation and the steel mould trolley enters in place to perform mould erecting and concrete pouring. Because large-scale porous fall siphon span is big, if the roof reinforcing bar does not support fixed can sink the bending, influence reinforcing bar protective layer, reinforcing bar platform truck antedisplacement and steel form platform truck discrepancy. In the flow construction of the complete equipment of the steel bar trolley and the steel mould trolley, the steel bar of the top plate is prevented from bending downwards, so that the steel bar trolley moves forwards and the rear steel mould trolley smoothly enters, a steel bar protective layer is qualified, the concrete construction progress is accelerated, and the concrete construction quality is improved. The invention discloses a large porous inverted siphon roof reinforcing steel bar lifting and fixing device applied to large inverted siphon concrete pouring.
Chinese patent document CN 105803957B describes a box culvert jacking device and a box culvert jacking method, including a box culvert, three layers of steel grids, sprayed concrete, four rows of pipe curtains and i-beams, but the whole steel bar manufacturing and installation, the formwork erection and the concrete pouring of the scheme can be performed only by using a steel form car, and the service life of the concrete pouring construction period is long. Chinese patent document CN 106120579 a describes a box culvert template, which includes an inner template, an outer template, a lower tongue-and-groove template, an upper tongue-and-groove template, an inner mold support and an inner mold back edge, but this solution has a complex structure, complex operation, high cost and defective use, and thus needs to be improved.
Disclosure of Invention
The invention mainly aims to provide a four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and a construction method, and solves the problems of low progress, complex operation and low concrete construction quality of large inverted siphon concrete pouring construction.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a double-deck reinforcing bar of four holes inverted siphon roof lifts by crane location fixing device, includes a plurality of adjustable promotion lifting hooks, fixed beam and built-in fitting, and the built-in fitting is located the bottom plate storehouse, fixedly connected with support frame on the built-in fitting, and the fixed beam is located the support frame top, and fixed beam and support frame are connected, and a plurality of adjustable promotion lifting hooks evenly spaced apart distribution are on the fixed beam, and adjustable promotion lifting hook is used for adjusting promotion and fixed inverted siphon roof steel reinforcement frame.
In the preferred scheme, the embedded part comprises a base, a connecting plate is arranged on the base, a limiting cylinder is arranged on the connecting plate, a plurality of first waist-round holes are symmetrically arranged on the side wall of the limiting cylinder in a penetrating mode, the supporting frame is connected with the embedded part through screws, and fixing holes are further formed in one side of each first waist-round hole.
In the preferred scheme, the base includes the fixed plate, is equipped with two baffles on the fixed plate relatively, and the baffle tip is equipped with the board of directly stretching, directly stretches the board and extends to the baffle outside.
In the preferred scheme, the support frame includes first ejector pin, and first ejector pin below evenly distributed has a plurality of montants, and the montant lower extreme runs through relatively and is equipped with a plurality of second waist round holes, and the support frame passes through screw and built-in fitting fixed.
In a preferred scheme, a first adjusting part, a driving rod and a second adjusting part are arranged on the adjustable lifting hook from top to bottom, the first adjusting part and the second adjusting part are respectively in threaded connection with the driving rod, a first hook is arranged on one side of the first adjusting part, and a second hook is arranged on one side of the second adjusting part; the first hook is of a C-shaped structure and comprises two protrusions which are oppositely arranged.
In the preferred scheme, detachable is connected with adjusting device on the first couple, adjusting device includes the second ejector pin, second ejector pin both ends are provided with the third couple relatively, the third couple is used for buckle in first couple bottom, the second ejector pin still includes two relative parallel arrangement's bracing piece, it is equipped with the spacing hole to run through on the bracing piece, spacing hole direction is parallel with the second ejector pin, wear to be equipped with the curved bar in the spacing hole, the curved bar both ends are equipped with first helical gear respectively, first helical gear is located the bracing piece outside, spacing downthehole spring that still has set firmly, the spring is located the curved bar top, the actuating lever upper end is equipped with the second helical gear, second helical gear and first helical gear meshing.
In the preferred scheme, a circular ring is arranged on one side of the first adjusting part, and the bottom of the first hook is sleeved with the circular ring.
A construction method of an inverted siphon roof comprises the following steps:
step1, constructing a bottom plate bin and installing embedded parts in the bottom plate bin;
step2, using a reinforcing steel bar trolley in front to carry out reinforcing steel bar frame installation of the downdraft wall body and the top plate;
step3, mounting a support frame, and mounting the fixed beam after the support frame is mounted;
step4, arranging a plurality of adjustable lifting hooks at intervals, and then lifting a reinforcing steel bar frame on the reinforcing steel bar trolley;
step5, the reinforcing steel bar trolley in front leaves the position of the bin and enters the next position of the bin, the steel mould trolley in back enters the position of the bin, and then the mould is erected;
step6, supporting a top plate reinforcing steel frame by a steel mould trolley, and carrying out concrete pouring and vibrating on the wall body and the top plate;
and Step7, curing to the design strength, and then carrying out inverted siphon top plate installation of the next bin.
In a preferable scheme, in the Step4, the number of the adjustable lifting hooks is 10, and the adjustable lifting hooks are uniformly and symmetrically arranged.
In the preferable scheme, in the Step6, the steel bar frame is placed on a concrete cushion block of the steel mould trolley after the steel bar frame is lowered by the adjustable lifting hook, the fixing device is removed, and the steps from the Step1 to the Step7 are repeated until the whole inverted siphon top plate is installed.
The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and the construction method have the beneficial effects that:
1) high efficiency: the structure is simple, the installation is convenient and fast, the fixation is reliable, because the large inverted siphon span is large, the weight of the steel bar is large, if the middle part is not supported or lifted to fix the inverted siphon top plate, the steel bar can bend downwards, and the entering and exiting of a steel bar trolley and a steel mould trolley are influenced;
2) the economic efficiency is as follows: the utility model provides a four holes fall siphon roof double-deck reinforcing bar and carry and hang location fixing device is suitable for being used for large-scale fall siphon wall body roof plate concrete placement on will falling siphon roof plate reinforcing bar promotion fixed beam, the effectual siphon roof plate reinforcing bar that has solved problem of bending down can effectively guarantee that reinforcing bar platform truck, steel form platform truck come in and go out for the construction progress has practiced thrift construction cost.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is an overall elevational cross-sectional schematic view of the present invention;
FIG. 2 is a schematic longitudinal cross-section of the invention along a wall;
FIG. 3 is a schematic view of the present invention taken along the middle of the body of the hole;
FIG. 4 is a general schematic view of the adjustable lifting hook of the present invention;
FIG. 5 is a schematic view of an integral embedment mounting support bracket of the present invention;
FIG. 6 is a schematic front view of an embedment mounting support bracket of the present invention;
FIG. 7 is a schematic top view of an embedment mounting support bracket of the present invention;
FIG. 8 is a schematic left view of an embedment mounting bracket of the present invention;
FIG. 9 is a schematic view of the overall adjustment device of the present invention;
FIG. 10 is a schematic elevational view of the adjustment device of the present invention;
FIG. 11 is a schematic top view of the adjustment device of the present invention;
FIG. 12 is a schematic cross-sectional view of an adjustment device A-A of the present invention;
fig. 13 is a schematic left side view of the adjustment device of the present invention.
In the figure: an adjustable lifting hook 1; a first adjustment portion 101; a second regulating portion 102; a drive lever 103; a first hook 104; a second hook 105; a projection 106; the second bevel gear 107; a circular ring 108; a fixed beam 2; a support frame 3; a first jack 301; a vertical rod 302; a second waist circular hole 303; an embedded part 4; a base 401; a connecting plate 402; a limiting cylinder 403; a first waist aperture 404; a fixed plate 405; a baffle 406; a straight extension plate 407; a fixing hole 408; a floor silo 5; a reinforcing steel bar frame 6; an adjusting device 7; a second top bar 701; a third hook 702; a support rod 703; a limiting hole 704; a knee lever 705; a first beveled gear 706; a spring 707; a fixing hole 708; and a screw 8.
Detailed Description
Example 1
As shown in fig. 1-13, a four-hole inverted siphon roof double-layer steel bar lifting and positioning fixing device comprises a plurality of adjustable lifting hooks 1, a fixed beam 2 and an embedded part 4, wherein the embedded part 4 is located in a bottom plate bin 5, a support frame 3 is fixedly connected onto the embedded part 4, the fixed beam 2 is located above the support frame 3, the fixed beam 2 is connected with the support frame 3, the adjustable lifting hooks 1 are uniformly distributed on the fixed beam 2 at intervals, and the adjustable lifting hooks 1 are used for adjusting lifting and fixing inverted siphon roof steel bar frames 6. From this structure to make the reinforcing bar platform truck carry out reinforcing bar frame 6's system ann back, the reinforcing bar platform truck antedisplacement in the place ahead, the steel form platform truck that is in the rear prepares to take one's place and gos forward, through a plurality of adjustable promotion lifting hooks 1 hoist and mount reinforcing bar frame 6, prevents that roof reinforcing bar frame 6 from influencing reinforcing bar platform truck antedisplacement and steel form platform truck entering because the dead weight is too big downwarping, has guaranteed holistic construction safety and efficiency of construction.
In a preferable scheme, the embedded part 4 comprises a base 401, a connecting plate 402 is arranged on the base 401, a limiting cylinder 403 is arranged on the connecting plate 403, a plurality of first waist-round holes 404 are symmetrically arranged on the side wall of the limiting cylinder 403 in a penetrating manner, the support frame 3 is connected with the embedded part 4 through screws 8, and a fixing hole 408 is further arranged on one side of each first waist-round hole 404. By the structure, the embedded part 4 is arranged on the cushion concrete, the whole stability is ensured, the limiting cylinder 403 ensures the verticality of the support frame 3, and the first waist round hole 404 is used for slightly adjusting the support piece 3.
Preferably, the base 401 includes a fixing plate 405, two baffles 406 are oppositely disposed on the fixing plate 405, a straight extending plate 407 is disposed at an end of the baffle 406, and the straight extending plate 407 extends to an outer side of the baffle 406. By the structure, the stability and firmness of the embedded part 4 are ensured.
In a preferable scheme, the support frame 3 comprises a first ejector rod 301, a plurality of vertical rods 302 are uniformly distributed below the first ejector rod 301, a plurality of second waist round holes 303 penetrate through the lower ends of the vertical rods 302 relatively, and the support frame 3 is fixed with the embedded part 4 through screws 8. From this structure to make support frame 3 can adjust, and guarantee the straightness that hangs down of support frame.
In a preferable scheme, the adjustable lifting hook 1 is provided with a first adjusting part 101, a driving rod 103 and a second adjusting part 102 from top to bottom, the first adjusting part 101 and the second adjusting part 102 are respectively in threaded connection with the driving rod 103, a first hook 104 is arranged on one side of the first adjusting part 101, and a second hook 105 is arranged on one side of the second adjusting part 102; the first hook 104 is a C-shaped structure, and the first hook 104 includes two protrusions 106 disposed oppositely. With this structure, the threads of the first adjustment part 101 and the second adjustment part 102 are opposite to each other, so that the protrusion 106 can limit the swing of the first hook 104, the first hook 104 can firmly connect the adjustable lifting hook 1 to the fixed beam 2, the height adjustment of the steel bar frame 6 can be quickly completed by adjusting the driving rod 103, and the stability of the overall adjustment can be ensured.
In a preferable scheme, the first hook 104 is detachably connected with an adjusting device 7, the adjusting device 7 includes a second ejector rod 701, two ends of the second ejector rod 701 are oppositely provided with third hooks 702, the third hooks 702 are used for being buckled at the bottom of the first hook 104, the second ejector rod 701 further includes two support rods 703 arranged in parallel, a limiting hole 704 penetrates through the support rods 703, the direction of the limiting hole 704 is parallel to that of the second ejector rod 701, a curved rod 705 penetrates through the limiting hole 704, two ends of the curved rod 705 are respectively provided with first helical gears 706, the first helical gears 706 are located on the outer sides of the support rods 703, a spring 707 is further fixedly arranged in the limiting hole 704, the spring 707 is located above the curved rod 705, the upper end of the drive rod 103 is provided with a second helical gear 107, and the second helical gear 107 is meshed with the first helical gear 706. From this structure to make can accomplish the promotion of two adjacent adjustable lifting hook 1 fast through curved bar 705, it is efficient to adjust, and guaranteed the stable synchronization between two adjacent adjustable lifting hook 1, increase holistic stability, the overall dimension and the first couple 104 phase-match of third couple 702 have guaranteed that first regulating part 101 can be stable installs on first couple 104, prevent that first regulating part 101 from rotating under the effect of actuating lever 103.
In a preferred embodiment, a ring 108 is disposed on one side of the first adjusting portion 101, and the ring 108 is sleeved at the bottom of the first hook 104. With this structure, the first adjusting part 101 can be easily detached from the first hook 104.
A construction method of a four-hole inverted siphon top plate comprises the following steps:
step1, constructing a bottom plate bin 5 and installing embedded parts 4 in the bottom plate bin 5;
step2, using a reinforcing steel bar trolley at the front to carry out the reverse siphon of the reinforcing steel bar frame 6 of the wall body and the top plate;
step3, installing a support frame 3, and installing a fixed beam 2 after the support frame 3 is installed;
step4, arranging a plurality of adjustable lifting hooks 1 at intervals, and then lifting a steel bar frame 6 on the steel bar trolley;
step5, the reinforcing steel bar trolley in the front leaves the position of the storage bin and enters the next position of the storage bin, the steel mould trolley in the rear enters the position of the storage bin, and then the mould is erected;
step6, supporting the top plate steel reinforcement frame 6 by a steel mould trolley, and carrying out concrete pouring and vibrating on the wall body and the top plate;
and Step7, curing to the design strength, and then carrying out inverted siphon top plate installation of the next bin. From this structure, through setting up reinforcing bar platform truck and steel mould platform truck, guaranteed the high efficiency of whole construction, promoted holistic construction quality with reinforcing bar platform truck, steel mould platform truck cooperation.
In a preferable scheme, in the Step4, the number of the adjustable lifting hooks is 10, and the adjustable lifting hooks are uniformly and symmetrically arranged. By the structure, the whole stress is uniform, and the service efficiency of the adjustable lifting hook is high.
In the preferable scheme, in Step6, the adjustable lifting hook 1 lowers the steel bar frame 6, then places the steel bar frame on a concrete cushion block of a steel mould trolley, removes the fixing device, and repeats the steps of Step 1-Step 7 until the whole inverted siphon top plate is installed. By the structure, the construction progress can be effectively improved, the working efficiency of working procedures and working hours is improved, the rework rate is reduced, the construction progress of the inverted siphon concrete is accelerated, and the construction cost is saved.
The structure is contained to certain engineering inverted siphon for C30 reinforced concrete box, total length 415.0m, 28 sections altogether, 10 holes are established altogether to the inverted siphon, haplopore drill way size is 5.5X 4.5 (wide X height), perpendicular rivers divide 3 antithetical couplets to the hole body, and wherein 4 holes in the middle of are one and ally oneself with, 3 holes one in both sides allies oneself with, roof concrete thickness 120, 80cm adopt the reinforcing bar platform truck to carry out the reinforcing bar system ann, the steel mould platform truck carries out the wall, roof concrete pouring, concrete operation is as follows:
1) manufacturing and installing steel bars: install built-in fitting 4 earlier during bottom plate storehouse concrete construction, then adopt reinforcing bar platform truck to fall siphon wall, the system of roof reinforcing bar frame 6 ann, carry out the installation of support frame 3 after reinforcing bar system ann is accomplished, at support frame 3 installation fixed beam 2, on fixed beam 2 even interval arrangement adjustable lifting hook 1 promotes fixed beam 2 with the roof reinforcing bar, adjust adjustable lifting hook 1 and make the roof reinforcing bar not downwarp.
2) Erecting a mold and pouring concrete: go up the fixed beam 2 of roof reinforcing bar promotion with reinforcing bar platform truck forward through adjustable promotion lifting hook 1 and get into next position of a storehouse, rear steel form platform truck moves ahead and gets into the position of a storehouse, erect the mould, support roof reinforcing bar frame 6 by the steel form platform truck, promote reinforcing bar frame 6, demolish a supporting beam etc., carry out the wall body, roof concreting, vibrate, pour and accomplish the back, preceding storehouse is carried out reinforcing bar frame 6 by the reinforcing bar platform truck and is made ann and accomplish simultaneously, promote fixed beam 2 with the roof reinforcing bar through adjustable promotion lifting hook 1, circulation removal reinforcing bar platform truck and steel form platform truck carry out the concrete placement construction.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (9)
1. The utility model provides a double-deck reinforcing bar of four holes inverted siphon roof lifts by crane location fixing device which characterized by: the lifting device comprises a plurality of adjustable lifting hooks (1), a fixed beam (2) and an embedded part (4), wherein the embedded part (4) is positioned in a bottom plate bin (5), a support frame (3) is fixedly connected onto the embedded part (4), the fixed beam (2) is positioned above the support frame (3), the fixed beam (2) is connected with the support frame (3), the adjustable lifting hooks (1) are uniformly distributed on the fixed beam (2) at intervals, and the adjustable lifting hooks (1) are used for adjusting lifting and fixing a reversed suction siphon top plate reinforcing steel bar frame (6);
the supporting frame (3) comprises a first ejector rod (301), a plurality of vertical rods (302) are uniformly distributed below the first ejector rod (301), a plurality of second waist round holes (303) are formed in the lower ends of the vertical rods (302) in a penetrating mode, and the supporting frame (3) is fixed through screws (8) and embedded parts (4).
2. The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device of claim 1, which is characterized in that: the embedded part (4) comprises a base (401), a connecting plate (402) is arranged on the base (401), a limiting cylinder (403) is arranged on the connecting plate (402), a plurality of first waist round holes (404) are symmetrically arranged on the side wall of the limiting cylinder (403) in a penetrating mode, the supporting frame (3) is connected with the embedded part (4) through screws (8), and a fixing hole (408) is further formed in one side of each first waist round hole (404).
3. The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device of claim 2, which is characterized in that: the base (401) comprises a fixing plate (405), two baffles (406) are oppositely arranged on the fixing plate (405), a straight extending plate (407) is arranged at the end part of each baffle (406), and the straight extending plate (407) extends towards the outer side of each baffle (406).
4. The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device of claim 1, which is characterized in that: the adjustable lifting hook (1) is provided with a first adjusting part (101), a driving rod (103) and a second adjusting part (102) from top to bottom, the first adjusting part (101) and the second adjusting part (102) are respectively in threaded connection with the driving rod (103), a first hook (104) is arranged on one side of the first adjusting part (101), and a second hook (105) is arranged on one side of the second adjusting part (102);
the first hook (104) is of a C-shaped structure, and the first hook (104) comprises two protrusions (106) which are oppositely arranged.
5. The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device of claim 4, which is characterized in that: the detachable adjusting device (7) is connected to the first hook (104), the adjusting device (7) comprises a second ejector rod (701), third hooks (702) are arranged at two ends of the second ejector rod (701) oppositely, the third hooks (702) are used for being buckled at the bottom of the first hook (104), the second ejector rod (701) further comprises two supporting rods (703) which are arranged in parallel relatively, limiting holes (704) penetrate through the supporting rods (703), the directions of the limiting holes (704) are parallel to the second ejector rod (701), a curved rod (705) penetrates through the limiting holes (704), first bevel gears (706) are arranged at two ends of the curved rod (705), the first bevel gears (706) are located on the outer side of the supporting rods (703), springs (707) are further fixedly arranged in the limiting holes (704), the springs (707) are located above the curved rods (705), second bevel gears (107) are arranged at the upper ends of the driving rods (103), and the second bevel gears (107) are meshed with the first bevel gears (706).
6. The four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device of claim 4, which is characterized in that: a circular ring (108) is arranged on one side of the first adjusting portion (101), and the bottom of the first hook (104) is sleeved with the circular ring (108).
7. A construction method of a four-hole inverted siphon top plate is characterized by comprising the following steps: the method comprises the following steps:
step1, constructing a bottom plate bin (5), and installing an embedded part (4) in the bottom plate bin (5);
step2, using a reinforcing steel bar trolley at the front to carry out the reverse siphon of the reinforcing steel bar frame (6) of the wall body and the top plate;
step3, installing a support frame (3), and installing a fixed beam (2) after the support frame (3) is installed;
step4, arranging a plurality of adjustable lifting hooks (1) at intervals, and then lifting a reinforcing steel bar frame (6) on the reinforcing steel bar trolley;
step5, the reinforcing steel bar trolley in the front leaves the position of the storage bin and enters the next position of the storage bin, the steel mould trolley in the rear enters the position of the storage bin, and then the mould is erected;
step6, supporting a top plate reinforcing steel frame (6) by a steel mould trolley, and pouring and vibrating concrete of the wall body and the top plate;
step7, curing to design strength, and then carrying out inverted siphon top plate installation of the next bin.
8. The construction method of the four-hole inverted siphon roof as claimed in claim 7, wherein: in the Step4, the number of adjustable lifting hooks is 10, and the adjustable lifting hooks are uniformly and symmetrically arranged.
9. The construction method of the four-hole inverted siphon roof as claimed in claim 7, wherein: in the Step6, the steel bar frame (6) is placed on the concrete cushion block of the steel mould trolley after the steel bar frame is lowered by the adjustable lifting hook (1), the fixing device is removed, and the steps of the steps 1-Step 7 are repeated until the whole inverted siphon top plate is installed.
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| CN202011428819.XA CN112627539B (en) | 2020-12-09 | 2020-12-09 | Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method |
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