CN115288446A - Construction method for prefabricated half cage beam steel bars of floor of assembly structure - Google Patents
Construction method for prefabricated half cage beam steel bars of floor of assembly structure Download PDFInfo
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- CN115288446A CN115288446A CN202210800705.6A CN202210800705A CN115288446A CN 115288446 A CN115288446 A CN 115288446A CN 202210800705 A CN202210800705 A CN 202210800705A CN 115288446 A CN115288446 A CN 115288446A
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- 238000010276 construction Methods 0.000 title claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E04G21/162—Handles to carry construction blocks
Abstract
The embodiment of the application provides a construction method for prefabricated half cage beam steel bars of an assembly structure floor, which comprises the following steps: acquiring the information of the steel bars on the beam and the information of the water pipelines embedded in the beam; the obtained steel bar information and the water pipeline information are visually presented; binding the beam bottom reinforcements and the stirrups according to the information of the steel bars and the information of the water pipelines to form a prefabricated half cage beam; hoisting the prefabricated half beam to a specified position, and mounting a beam column core hoop; binding prefabricated half cage beam top reinforcing steel bars after the construction of the beam column core hoop is installed, and binding floor slab panel reinforcing steel bars; and pouring the plate surface concrete after the beam plate steel bars are qualified through inspection. This application embodiment is through concentrating the processing district unloading ligature with floor beam reinforcing bar outside the operation face, ligature Liang Dejin and waist muscle earlier, hoist and mount to the operation face after, carry out ligature roof beam reinforcing bar again, guaranteed floor beam reinforcing bar ligature construction quality, the construction is high-efficient.
Description
Technical Field
The embodiment of the application belongs to the technical field of building engineering, and particularly relates to a construction method for prefabricated half cage beam steel bars of an assembly structure floor.
Background
In recent years, under the large background of the country's full-scale happy country, the fabricated building has obvious advantages as a novel building, and is more widely applied by construction parties due to the advantages of energy conservation, consumption reduction, environmental protection, construction quality improvement, construction period shortening and the like.
At present, the government of China advocates the use of an assembly type construction process during building construction, an assembly type + aluminum mould construction system is common, because the installation of the aluminum mould needs to be completed at one time, a side mould for binding beam ribs cannot be reserved, and in addition, the peripheral of a laminated slab is provided with anchor bars with the length of more than 100mm and part of engineering reinforcing bars are not reasonable enough, and the like, thereby bringing great difficulty to the installation and binding of floor reinforcing bars, causing beam column nodes, difficult binding of reinforcing bars at beam bottoms and other parts in place, easily generating quality defects, and greatly influencing the construction efficiency.
In traditional assembly structure + aluminium mould construction system, the back is accomplished in the aluminium mould installation, carries out ligature roof beam reinforcing bar again, and at this moment, roof beam both sides template has all closed the completion, and the operating personnel arm can't all go deep into the beam bottom, leads to beam bottom reinforcement difficulty, causes easily to leak to tie up or not tie up the phenomenon, causes the hidden danger for construction quality, leads to the fact the risk for later stage entity detection.
Disclosure of Invention
An object of the embodiment of the application is to provide a construction method for prefabricated half cage beam reinforcing steel bars of assembly structure floor, through with floor beam reinforcing steel bars at the concentrated processing district unloading ligature outside the operation face, ligature Liang Dejin and waist muscle earlier, hoist to the operation face after, carry out ligature roof beam reinforcing steel bar again, guaranteed floor beam reinforcing steel bar ligature construction quality, the construction is high-efficient to solve the problem among the background art.
In order to solve the technical problem, the technical scheme of the construction method for the prefabricated half cage beam steel bars of the assembly structure floor provided by the embodiment of the application is as follows:
the embodiment of the application discloses a construction method for prefabricated half cage beam steel bars of an assembly structure floor, which comprises the following steps:
step 1: acquiring the information of the steel bars on the beam and the information of the water pipelines embedded in the beam;
and 2, step: the obtained steel bar information and the water pipeline information are visually presented;
and 3, step 3: binding the beam bottom reinforcements and the stirrups according to the information of the steel bars and the information of the water pipelines to form a prefabricated half cage beam;
and 4, step 4: hoisting the prefabricated half beam to a specified position, and mounting a beam column core hoop;
and 5: binding prefabricated half cage beam top reinforcing steel bars after the construction of the beam column core hoop is installed, and binding floor slab panel reinforcing steel bars;
and 6: and after the beam plate steel bars are qualified by inspection, pouring plate surface concrete.
In an embodiment of any one of the foregoing solutions, the visually presenting the acquired rebar information and water pipeline information specifically includes:
step 11: the concrete parts, the sizes, the reinforcing bars and the water and electricity pipelines of the upper beam are integrated and optimized by using a BIM technology;
step 12: and (4) the floor beam steel bars and the water and electricity pipelines are pre-buried and visualized.
In an embodiment of any one of the above solutions, the binding of the beam bottom reinforcement and the stirrup is performed according to the reinforcement information and the water line information, and specifically includes:
step 31: setting a concentrated steel bar blanking binding area;
step 32: blanking the beam steel bars in the centralized processing area according to a design drawing, and binding the beam bottom steel bars and the stirrup waist bars;
step 33: and after binding and binding the beam bottom steel bars and the stirrup and the waist bars, numbering each beam from west to east according to a drawing.
In a preferred embodiment of any one of the above schemes, the hoisting the precast half girder to a designated position and installing the beam column core hoop specifically includes:
step 41: hoisting the prefabricated half beam to a specified position by using the prefabricated half beam hoisting auxiliary device;
step 42: and then hoisting the floor laminated slab and constructing stirrups in the core area of the beam column.
In a preferred embodiment of any one of the above solutions, the auxiliary device for hoisting a prefabricated half beam includes:
big shoulder pole and little shoulder pole, just big shoulder pole one side through first wire rope with little shoulder pole is connected, big shoulder pole opposite side is connected with tower crane wire rope.
In a preferred embodiment of any of the above aspects, the large carrying pole comprises:
the two ends of the sleeve are open, and the sleeve is internally provided with internal threads;
the two screws are symmetrical to each other in the middle of the sleeve, the outer surface of each screw is provided with an external thread, and the two screws are in threaded connection with the sleeve.
In an embodiment of any of the above solutions, the large shoulder pole further includes:
the two first lifting lugs are respectively arranged at one end of the screw rod, which is far away from the sleeve, and the first lifting lugs are provided with first screw holes;
the screw rod is provided with two second lifting lugs which are respectively arranged at one end of the screw rod, which is far away from the sleeve, the first lifting lug and the second lifting lug are mutually symmetrical along the axial direction of the screw rod, and the second lifting lug is provided with a second screw hole.
In a preferred embodiment of any one of the above solutions, the sleeve has a third lifting lug, and the third lifting lug has a third screw hole.
In a preferred embodiment of any of the above aspects, the carrying pole comprises:
the square tube is used for being inserted into the prefabricated half cage beam;
and the fourth lifting lug corresponds to the second lifting lug and the third lifting lug and is arranged on the square pipe, a fourth screw hole is formed in the fourth lifting lug, and the first steel wire rope is provided with a plurality of steel wire ropes and is used for penetrating through the third screw hole, the fourth screw hole and the third screw hole.
In a preferred embodiment of any one of the above solutions, the fourth lifting lug is located in the middle of the square pipe.
Compared with the prior art, the construction method for the prefabricated half cage beam reinforcing steel bars of the assembly structure floor provided by the embodiment of the application has the advantages that the centralized blanking processing area is arranged, the floor beam reinforcing steel bars are bound and transferred to the centralized processing area, the beam bottom reinforcing steel bars and the waist reinforcing steel bars are bound, the binding quality of the floor beam is guaranteed, the prefabricated rate of an assembly type is improved, the construction is efficient, energy is saved, the environment is protected, the construction period is shortened, and the cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions, and it will be understood by those skilled in the art that the drawings are not necessarily drawn to scale, in which:
FIG. 1 is a schematic flow chart of a construction method for a floor prefabricated half cage beam steel bar of the assembly structure in the embodiment of the application.
FIG. 2 is a schematic diagram of a process of binding beam bottom reinforcements and stirrups according to the reinforcement information and water pipeline information in the construction method of the prefabricated half cage beam reinforcements of the assembly structure floor according to the embodiment of the application.
FIG. 3 is a schematic structural view of a prefabricated half girder hoisting auxiliary device of the construction method for the prefabricated half cage girder steel bars of the assembly structure floor according to the embodiment of the application.
FIG. 4 is a tower crane circuit control schematic diagram of the construction method for prefabricating the half cage beam reinforcing steel bars on the floor of the assembly structure in the embodiment of the application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following embodiments of the present application take a construction method of prefabricated half cage beam steel bars of an assembly structure floor as an example to describe the scheme of the present application in detail, but the embodiments do not limit the protection scope of the present application.
Examples
As shown in fig. 1 to 2, an embodiment of the present application provides a construction method for prefabricated half cage beam steel bars of an assembly structure floor, including:
step 1: acquiring the information of the steel bars on the beam and the information of the water pipelines embedded in the beam;
step 2: the obtained steel bar information and the water pipeline information are visually presented;
and step 3: binding beam bottom reinforcements and stirrups according to the information of the steel bars and the information of the water pipelines so as to form a prefabricated half-cage beam;
and 4, step 4: hoisting the prefabricated half beam to a specified position, and mounting a beam column core hoop;
and 5: binding prefabricated half cage beam top reinforcing steel bars after the construction of the beam column core hoop is installed, and binding floor slab panel reinforcing steel bars;
step 6: and after the beam plate steel bars are qualified by inspection, pouring plate surface concrete.
According to the construction method for prefabricating the semi-cage beam reinforcing steel bars on the assembly structure floor, the concentrated blanking processing area is arranged, the floor beam reinforcing steel bars are bound and transferred to the concentrated processing area, the beam bottom reinforcing steel bars and the waist reinforcing steel bars are bound, the semi-cage beam reinforcing steel bars are hoisted to the floor through the telescopic steel carrying pole, and the beam top reinforcing steel bars are bound finally, so that the binding quality of the floor beam is guaranteed, the prefabricated rate of an assembly type is improved, the construction is efficient, energy is saved, the environment is protected, the construction period is shortened, and the cost is saved.
As shown in fig. 1 to fig. 2, the visually presenting the acquired rebar information and water pipeline information specifically includes:
step 11: the concrete parts, the size, the reinforcing bars and the water and electricity pipelines of the upper beam are integrated and optimized by using the BIM technology;
step 12: and (4) the floor beam steel bars and the water and electricity pipelines are pre-buried and visualized.
In the construction method of the prefabricated half cage beam reinforcing steel bars of the assembly structure floor, the concrete positions, sizes, reinforcing bars and the like of the upper beam and the water and electricity pipelines are integrated and optimized by using the BIM technology, and the floor beam reinforcing steel bars and the water and electricity pipelines are pre-embedded and visualized to be displayed.
As shown in fig. 2, according to reinforcing bar information and water pipeline information, the banding is carried out to roof beam base rail and stirrup ligature, specifically includes:
step 31: setting a centralized steel bar blanking binding area;
step 32: blanking the beam steel bars in the centralized processing area according to a design drawing, and binding the beam bottom steel bars and the stirrup waist bars;
step 33: after the binding of the beam bottom reinforcing steel bars and the stirrup waist bars is finished, each beam is numbered from west to east according to drawings, and the floor beam is prevented from being installed wrongly.
In the construction method for the prefabricated half cage beam reinforcing steel bars of the assembly structure floor, disclosed by the embodiment of the invention, the floor beam reinforcing steel bars can be bound and transferred to the centralized processing area by arranging the centralized reinforcing steel bar blanking binding area, the beam bottom reinforcing steel bars and the waist reinforcing steel bars are bound, the binding quality of the floor beam is ensured, the prefabricated rate of an assembly type is improved, and after the binding is finished, each beam is numbered from west to east according to drawings, so that the construction in the later period can be facilitated.
As shown in fig. 1 to 2, the hoisting of the prefabricated half beam to a designated position and the installation of the beam-column core hoop specifically include:
step 41: hoisting the prefabricated half beam to a specified position by using the prefabricated half beam hoisting auxiliary device;
step 42: and then hoisting the floor laminated slab and constructing stirrups in the core area of the beam column.
In the construction method of the prefabricated half cage beam reinforcing steel bars of the assembly structure floor, the prefabricated half beam is hoisted to the designated position by using the prefabricated half beam hoisting auxiliary device (steel carrying pole), the floor laminated slab is hoisted afterwards, the stirrups of the beam column core area are constructed, the top reinforcing steel bars of the prefabricated half cage beam are bound after the construction of the beam column nodes is completed, the reinforcing steel bars of the floor panel are bound afterwards, the plate surface concrete is poured after the square acceptance of the beam panel reinforcing steel bars, the half cage beam reinforcing steel bars are hoisted to the floor by the telescopic half beam hoisting auxiliary device, and the top reinforcing steel bars of the beam are bound finally, so that the binding quality of the floor beam is ensured, the prefabricated rate of the assembly type floor is improved, the construction is efficient, energy-saving and environment-friendly, the construction period is shortened, and the cost is saved.
As shown in fig. 3, the auxiliary hoisting device for the precast half girder comprises:
In the construction method for the prefabricated half cage beam reinforcement of the assembly structure floor, the large carrying pole 1 and the small carrying pole 7 are adopted, when the construction method is used, the small carrying pole 7 is installed in the prefabricated half cage beam 2, then the small carrying pole 7 is connected with the large carrying pole 1 through the first steel wire rope 8, the small carrying pole 7 and the prefabricated half cage beam 2 can be lifted through the large carrying pole 1, the installation is convenient, the large carrying pole 1 is set to be a telescopic structure for use, so that the length of the large carrying pole 1 can be adjusted according to the actual application requirements, and the prefabricated rate of an assembly type is improved.
As shown in fig. 3, the large shoulder pole 1 includes:
a sleeve 11 with two open ends and internal thread inside;
the screw 12 is provided with two screws 12 which are symmetrical with each other in the middle of the sleeve 11 and are provided with external threads on the outer surface, and the two screws 12 are in threaded connection with the sleeve 11.
As shown in fig. 3, the large shoulder pole 1 further includes:
two first lifting lugs 31 are arranged at one end of the screw 12 far away from the sleeve 11, and a first screw hole 32 is formed in each first lifting lug 31;
the screw rod 12 is provided with two second lifting lugs 33 which are respectively arranged at one end of the screw rod 12 far away from the sleeve 11, the first lifting lug 31 and the second lifting lug 33 are mutually symmetrical along the axial direction of the screw rod 12, the second lifting lug 33 is provided with a second screw hole 34, the sleeve 11 is provided with a third lifting lug 51, and the third lifting lug 51 is provided with a third screw hole 52.
In the construction method for the prefabricated half cage beam reinforcement on the floor of the assembly structure according to the embodiment of the present invention, in order to achieve a stronger structure, in the embodiment of the present invention, preferably, the sleeve 11 and the screw 12 are made of stainless steel materials, and a length of one of the screw 12 is greater than a length of the sleeve 11, and a majority of the screw 12 is located in the sleeve 11, so that stability of the structure can be ensured, when a force is applied, sliding between the screw 12 and the sleeve 11 is prevented, and simultaneously, in order to achieve uniform force application between the screw 12 and the sleeve 11, the screw 12 is symmetrically installed on both sides of the sleeve 11, so that uniform force application on both sides of the sleeve 11 can be achieved, in the embodiment of the present invention, preferably, the first lifting lug 31, the second lifting lug 33, and the third lifting lug 51 are made of stainless steel materials.
As shown in fig. 3, the small shoulder pole 7 includes:
the square pipe 71 is used for being inserted into the prefabricated half cage beam 2;
the fourth lifting lug 72 corresponds to the second lifting lug 33 and the third lifting lug 51, and is mounted on the square tube 71, the fourth lifting lug 72 is provided with a fourth screw hole 73, the first wire rope 8 is provided with a plurality of wires and is used for penetrating the third screw hole 52, the fourth screw hole 73 and the third screw hole 52, and the fourth lifting lug 72 is located in the middle of the square tube 71.
In the construction method for the prefabricated half cage beam reinforcement on the assembly structure floor according to the embodiment of the invention, in order to achieve convenient hoisting, a plurality of fourth lifting lugs 72 are welded on the upper portion of the square pipe 71, and three fourth lifting lugs 72 respectively correspond to two second lifting lugs 33 and one third lifting lug 51, so that when the construction method is installed, the first steel wire rope 8 passes through the third screw hole 52 and the fourth screw hole 73, the third lifting lug 51 is connected with the fourth lifting lug 72, and then the other two first steel wire ropes 8 pass through the second screw hole 34 and the fourth screw hole 73 which correspond to each other, so that the square pipe 71 is conveniently hoisted, in addition, the length of the square pipe 71 can be set according to the length of the prefabricated half cage beam 2 on the actual site, and then the fourth lifting lugs 72 are welded on the square pipe 71, so that the construction can be more convenient.
In the construction method of the prefabricated half cage beam steel bars of the assembly structure floor, the sleeve 11 is a circular steel tube with the diameter of 48mm, the length of the circular steel tube is set according to the length of the floor beam, the square tube 71 is a 40-40mm square tube, the length of the square tube is set according to the length of the floor beam, and when the large carrying pole 1 is manufactured, the construction method specifically comprises the following steps: the length of the stainless steel sleeve is 2000mm, the diameter of the stainless steel sleeve is 48mm, internal threads are arranged in the stainless steel sleeve, the two screw rods are connected with the sleeve, the length of the two screw rods and the sleeve can be adjusted → the connecting side of a tower crane is welded with 2 third lifting lugs 51 with the aperture of 30mm → the connecting part of a small carrying pole is welded with 3 fourth lifting lugs 72 with the aperture of 30mm → red and white warning paint is painted → acceptance is qualified → the stainless steel sleeve is put into use; when the small carrying pole 7 is manufactured, the method specifically comprises the following steps: the length is 2000mm, the size is 40 × 40mm square tube → the joint of the big shoulder pole is welded with 3 fourth lifting lugs 72 with the aperture of 30mm → is painted with red and white warning paint → is accepted and qualified → is put into use; after the prefabricated half cage beam steel bars are bound, the small carrying pole is inserted into the prefabricated half cage beam, the upper part of the large carrying pole is connected with a tower crane steel wire rope, the lower part of the large carrying pole is connected with the small carrying pole inserted into the steel bar cage by adopting three steel wire ropes, the beam steel bars are hoisted to an operation surface, and the beam bottom steel bars and the waist bars are bound in a steel bar centralized processing area outside the operation surface in advance, so that the prefabrication rate is improved, the construction efficiency is improved, and the labor is saved; half cage roof beam reinforcing bar adopts the steel shoulder pole to carry out supplementary hoist and mount, prevent that steel reinforcement cage hoist and mount in-process from producing the deformation, influence construction quality, number prefabricated half cage roof beam muscle earlier before through processing the roof beam muscle, the hoist and mount installation in the later stage of being convenient for, concentrate the unloading in the stock ground before the roof beam reinforcement, reinforcing bar and stirrup below every roof beam ligature roof beam waist in advance, prefabricated half cage roof beam muscle is gone into the mould after, put post node stirrup, then place the superimposed sheet, the superimposed sheet hoist and mount back installation roof beam top owner muscle that finishes, the roof beam bottom muscle is fully pricked, the stirrup interval, quantity is controlled in advance, improve steel bar installation quality, the part below Liang Yaojin is ligatured in advance, the reduction of erection time.
In the embodiment of the invention, construction is strictly organized according to a construction method, the processes are not required to be reversed, the damage or pollution of the former process by the latter process is prevented, materials and equipment are stored orderly in a classified manner in the construction process of each process, the completion of the construction is required to be finished, the site cleaning is required to be finished, the construction of a steel bar raw material stacking site is carried out according to the drawing of a technical department, the site is hardened, a steel bar processing machine tool which meets the national standard is adopted, a low-noise and low-vibration machine tool is adopted, a shaped protective shed is adopted in the steel bar processing site, an environment detector is arranged in the construction site, the noise emission is monitored in real time, a protective cover is arranged in electric welding operation, the electric welding arc light leakage is prevented, the sanitation of the construction site is well realized, each layer of garbage in the construction site is collected according to a designated site in a centralized manner, and the garbage is timely transported to a closed garbage pool outside a building after work.
As shown in figure 4, in the embodiment of the invention, when in hoisting, a tower crane is adopted for hoisting, in order to improve the sensitivity and accuracy of the tower crane, during circuit design, 4 relays RY 1-RY 4 and a peripheral circuit are arranged, an inverter is connected in the circuit and is respectively and electrically connected with the relay RY4, the relay RY3 and the relay RY2 through a control line, the control line can be set in a high/low level mode, positive and negative switching of voltages at two ends AB of the tower crane can be realized, positive and negative rotation is realized, when the coils of the relay RY1 and the relay RY3 work simultaneously, the corresponding normally open switch can be closed, the indicator light is displayed in green, when the coils of the relays RY2 and RY4 work simultaneously, the corresponding normally open switch is closed, and the indicator light is displayed in red.
Application example:
a newly-added block (three groups of groups) B block project total building area of a block project of 12.56 square meters is ensured in a Nanjing subway four-number line Mengbei station block, the project structural form is an assembly type integral shear wall structure, and the basement is a frame structure. 6 high-rise dwelling houses, and floor reinforcing steel bars adopt the technology of prefabricated half cage beam reinforcing steel bars. The method thoroughly solves the problem of beam rib binding by adopting a prefabricated half-cage beam rib technology, the beam ribs are bound in advance, standardized processing is adopted, the steel bar installation time is shortened, the construction period and labor are saved, the steel bar installation quality is improved, the implementation effect is good, the method is used by more than ten projects of Nanjing Anju group, and the method is mature and reliable at present. The construction method has been held for more than ten times, high recognition is given after the same-phase study of the previous communication is used, good praise is won for the Anhui group, and the construction method is consistently considered to be advanced and economical compared with the traditional construction.
By adopting the construction method, the economic benefit is remarkable, newly-added block B block projects of blocks (three groups of blocks) of a subway four-line Mengbei station block guarantee house comprise an underground garage and 6 main buildings, the building area is 12.56 ten thousand square meters, the construction of the prefabricated half cage beam ribs is carried out by applying the construction method, the construction progress is accelerated, the construction period and the labor are saved, and the total cost is saved by 100.2 ten thousand yuan.
Compared with the prior art, the construction method for the prefabricated half cage beam reinforcing steel bars of the assembly structure floor comprises the steps of setting a centralized blanking processing area, binding and transferring the floor beam reinforcing steel bars to the centralized processing area, binding the beam bottom reinforcing steel bars and the waist reinforcing steel bars, hoisting the half cage beam reinforcing steel bars to the floor through the telescopic steel carrying pole, binding the beam top reinforcing steel bars at last, ensuring the binding quality of the floor beam, improving the prefabricated rate of an assembly type, and achieving high construction efficiency, energy conservation, environmental protection, construction period saving and cost saving.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A construction method for prefabricated half cage beam steel bars of an assembly structure floor is characterized by comprising the following steps:
step 1: acquiring the information of the steel bars on the beam and the information of the water pipelines pre-embedded in the beam;
and 2, step: the obtained steel bar information and the water pipeline information are visually presented;
and step 3: binding the beam bottom reinforcements and the stirrups according to the information of the steel bars and the information of the water pipelines to form a prefabricated half cage beam;
and 4, step 4: hoisting the prefabricated half beam to a specified position, and mounting a beam column core hoop;
and 5: binding prefabricated half cage beam top reinforcing steel bars after the construction of the beam column core hoop is installed, and binding floor slab panel reinforcing steel bars;
step 6: and after the beam plate steel bars are qualified by inspection, pouring plate surface concrete.
2. The construction method for the prefabricated half cage beam steel bars on the floor of the assembly structure according to claim 1, wherein the step of visually presenting the obtained steel bar information and the water pipeline information specifically comprises the following steps:
step 11: the concrete parts, the sizes, the reinforcing bars and the water and electricity pipelines of the upper beam are integrated and optimized by using a BIM technology;
step 12: and (4) pre-embedding the floor beam steel bars and the water and electricity pipelines for visual presentation.
3. The construction method of the prefabricated half cage beam steel bars on the assembly structure floor according to claim 2, wherein the step of binding the beam bottom bars and the stirrups according to the steel bar information and the water pipeline information specifically comprises the following steps:
step 31: setting a concentrated steel bar blanking binding area;
step 32: blanking the beam steel bars in the centralized processing area according to a design drawing, and binding the beam bottom steel bars and the stirrup waist bars;
step 33: and after the binding of the beam bottom reinforcing steel bars and the stirrup waist bars is finished, numbering each beam from west to east according to drawings.
4. The construction method for the prefabricated half cage beam steel bars on the assembly structure floor according to claim 3, wherein the prefabricated half beam is hoisted to a specified position, and a beam column core hoop is installed, and the construction method specifically comprises the following steps:
step 41: hoisting the prefabricated half beam to a specified position by using the prefabricated half beam hoisting auxiliary device;
step 42: and then hoisting the floor laminated slab and constructing stirrups in the core area of the beam column.
5. The construction method for the prefabricated half cage beam steel bars of the assembly structure floor according to claim 4, wherein the prefabricated half beam hoisting auxiliary device comprises:
big shoulder pole (1) and little shoulder pole (7), just big shoulder pole (1) one side through first wire rope (8) with little shoulder pole (7) are connected, big shoulder pole (1) opposite side is connected with tower crane wire rope (4).
6. The construction method of the prefabricated half cage beam steel bars of the assembly structure floor according to claim 5, characterized in that the large carrying pole (1) comprises:
a sleeve (11) with two open ends and internal thread inside;
the two screws (12) are symmetrical with each other in the middle of the sleeve (11), the outer surface of each screw is provided with an external thread, and the two screws (12) are in threaded connection with the sleeve (11).
7. The construction method of the prefabricated half cage beam steel bars of the assembly structure floor according to claim 6, characterized in that the big carrying pole (1) further comprises:
the two first lifting lugs (31) are respectively arranged at one end, far away from the sleeve (11), of the screw rod (12), and a first screw hole (32) is formed in each first lifting lug (31);
the two second lifting lugs (33) are respectively arranged at one end of the screw rod (12) far away from the sleeve (11), the first lifting lug (31) and the second lifting lug (33) are mutually symmetrical along the axial direction of the screw rod (12), and a second screw hole (34) is formed in the second lifting lug (33).
8. The construction method of the prefabricated floor half cage beam steel bars of the assembly structure according to claim 7, wherein the sleeve (11) is provided with a third lifting lug (51), and the third lifting lug (51) is provided with a third screw hole (52).
9. The construction method of the prefabricated half cage beam steel bars of the assembly structure floor according to claim 8, characterized in that the small carrying pole (7) comprises:
the square pipe (71) is used for being inserted into the prefabricated half cage beam (2);
the fourth lifting lug (72) corresponds to the second lifting lug (33) and the third lifting lug (51) and is arranged on the square pipe (71), a fourth screw hole (73) is formed in the fourth lifting lug (72), and the first steel wire rope (8) is provided with a plurality of first steel wire ropes and is used for penetrating through the third screw hole (52), the fourth screw hole (73) and the third screw hole (52).
10. The construction method of the prefabricated half cage beam reinforcement of the assembly structure floor according to claim 9, wherein the fourth lifting lug (72) is positioned at the middle part of the square pipe (71).
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