CN116752678B - Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates - Google Patents
Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates Download PDFInfo
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- CN116752678B CN116752678B CN202310742062.9A CN202310742062A CN116752678B CN 116752678 B CN116752678 B CN 116752678B CN 202310742062 A CN202310742062 A CN 202310742062A CN 116752678 B CN116752678 B CN 116752678B
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- bar truss
- floor support
- truss floor
- support plate
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- 238000000465 moulding Methods 0.000 title claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 44
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- 239000002023 wood Substances 0.000 description 10
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
Abstract
The application relates to the technical field of steel bar truss floor support plate sloping plate production, in particular to a steel bar truss floor support plate sloping plate recycled aggregate block pouring molding construction process, which comprises the following construction steps: step 1: sequentially overlapping a plurality of cross beams on the working ground; step 2: the steel bar truss floor support plate is arranged at the top of the cross beam; step 3: ejecting a control line of the steel bar truss floor support plate on the cross beam; step 4: the top surface of one side of the steel bar truss floor support plate, which is close to the control line, is welded with a peg; step 5: uniformly binding additional steel bars on the top surface of the steel bar truss floor support plate; step 6: paving a layer of coarse aggregate on the top surface of the steel bar truss floor support plate; step 7: pouring recycled aggregate concrete at the top of the coarse aggregate; step 8: grinding the surface of the concrete layer structure; step 9: and the maintenance film is covered on the surface of the concrete layer structure, and is subjected to watering maintenance, so that the construction process can be simplified, and the quality of the finished product of the inclined floor slab can be improved.
Description
Technical Field
The application relates to the technical field of steel bar truss floor support plate sloping plate production, in particular to a steel bar truss floor support plate sloping plate recycled aggregate block pouring molding construction process.
Background
When the recycled aggregate block concrete is applied to floor construction, different floors can be set according to construction scenes so as to be used for adapting to different space positions, in the prior art, in the process of pouring the horizontal floors, a wood template is stably installed firstly, then the aggregate block is laid on the installed wood template, finally concrete is poured on the top surface of the aggregate block, so that the concrete permeates into gaps among the aggregate blocks, the cohesiveness among the aggregate blocks is improved, and the horizontal floors are obtained after the moisture of the concrete is hardened.
However, when the forming construction process of the horizontal floor slab is applied to the floor slab with the inclined angle, the wood form is firstly installed on the working ground in an inclined way, then the recycled aggregate is laid in the wood form, and after the recycled aggregate is laid, concrete is poured in the wood form, so that the whole wood form is filled with the concrete, and the inclined floor slab is obtained.
The inventor finds that when the wood template is obliquely placed, the concrete has certain fluidity, and the concrete and the recycled aggregate can be piled up towards the bottom of the wood template under the action of the dead weight of the concrete and the recycled aggregate, so that the inclined floor cannot be poured at one time, but can be continuously paved with the recycled aggregate and the concrete upwards after the concrete at the bottom layer is hardened, thus the construction period is long, and the aggregate blocks in the inclined floor are unevenly distributed, so that the quality of a finished product of the inclined floor is influenced.
Disclosure of Invention
In order to reduce the lower sliding position condition of recycled aggregate during the forming of the inclined floor slab, the application provides a pouring forming construction process of the inclined plate recycled aggregate block of the steel bar truss floor carrier plate, which can improve the quality of finished products of the inclined floor slab and ensure the loading capacity of the inclined floor slab.
The application provides a construction process for pouring and forming recycled aggregate blocks of a steel bar truss floor carrier plate sloping plate, which adopts the following technical scheme:
the inclined plate pouring molding construction process comprises the following construction steps:
step 1: and taking a plurality of cross beams, carrying out flatness detection and flatness treatment on the upper and lower surfaces of the cross beams, and sequentially overlapping the cross beams.
Step 2: and hoisting the steel bar truss floor support plate, wherein the steel bar truss floor support plate is installed at the top of the cross beam.
Step 3: and popping control lines of the steel bar truss floor support plates on the cross beams, wherein the control lines are splicing lines between the two steel bar truss floor support plates.
Step 4: and welding bolts on the top surface of one side of the steel bar truss floor support plate, which is close to the control line, wherein the welding bolts distributed on two adjacent steel bar truss floor support plates are in one-to-one opposite distribution.
Step 5: and uniformly binding additional steel bars on the top surface of the steel bar truss floor support plate.
Step 6: and a layer of coarse aggregate is paved on the top surface of the steel bar truss floor support plate.
Step 7: and pouring recycled aggregate concrete at the top of the coarse aggregate until gaps among the coarse aggregate, between the coarse aggregate and the steel bar truss floor support plate and between the coarse aggregate and the additional steel bars are filled with the recycled aggregate concrete, so as to form a concrete layer structure.
Step 8: and (3) grinding the surface of the concrete layer structure.
Step 9: and (3) taking a curing film, covering the curing film on the surface of the concrete layer structure, and watering and curing.
Through adopting above-mentioned technical scheme, the steel bar truss building carrier plate is installed on the top surface of crossbeam steadily, guarantee the straightness accuracy of steel bar truss building carrier plate, help improving the structural stability after the sloping floor shaping, through marking out the position of control line, install the welding peg additional in the control line both sides, can play the effect of reinforcing connection stability between two boards, the setting of welding peg and additional reinforcing bar can effectively block coarse aggregate, make coarse aggregate be difficult for receiving the gravity influence, or the condition that the washing of the stronger recycled aggregate concrete of mobility appears the gliding aversion, reduce coarse aggregate and pile up the phenomenon, make coarse aggregate evenly dispersed at the top surface of steel bar truss building carrier plate, and not gather on the control line, reduce the splice seam condition between two boards because of the atress is too big and the sag condition, help improving the finished product quality of sloping floor, guarantee the loading capacity of sloping floor.
Preferably, the construction step of the step 1 includes the following processing steps:
step 1.1: and determining the inclination angle between the cross beams and the horizontal plane, wherein the magnitude of the inclination angle is inversely proportional to the distance between two adjacent cross beams.
Step 1.2: and calibrating the positions of the cross beams, wherein the cross beams are distributed in parallel, and the upper surfaces of the cross beams are positioned on the same straight line.
Through adopting above-mentioned technical scheme, inclination between crossbeam and the horizontal plane and the distance between two adjacent crossbeams are inversely proportional, can provide sufficient holding power for laying coarse aggregate and the regeneration aggregate concrete on steel bar truss building carrier plate surface, and then guarantee the bearing capacity of sloping floor, moreover, a plurality of crossbeam parallel distribution, and its upper surface are in on same straight line, help improving the connection density between steel bar truss building carrier plate and the crossbeam, improve the connection stability of both.
Preferably, the construction step of the step 2 includes the following processing steps:
step 2.1: before the steel bar truss floor support plate is placed on the top of the cross beam, a plurality of web member foot seats are uniformly arranged at the bottom of the steel bar truss floor support plate;
step 2.2: the web member foot seats are in fit and clamping connection with the cross beams, whether the plane shape of the steel bar truss floor support plate is changed or not is checked, and whether the web member foot seats are absent at the parts of the steel bar truss floor support plate distributed at the top of the cross beams or not is checked;
step 2.3: if the plane shape of the steel bar truss floor supporting plate has bending deformation, tilting deformation, forking damage, additional cracks, additional holes, cutting the deformed part of the steel bar truss floor supporting plate, and after the steel bar truss floor supporting plate is cut, repairing and welding support steel bars on the top surface of the cross beam close to the steel bar truss floor supporting plate;
step 2.4: if the web member foot seats are absent in the steel bar truss floor carrier plate parts distributed at the tops of the cross beams, repairing and welding support steel bars on the top surfaces of the cross beams close to the web member foot seats;
step 2.5: after each beam is guaranteed to be stably abutted with the steel bar truss floor support plate, the beam and the steel bar truss floor support plate are reinforced.
Through adopting above-mentioned technical scheme, the outer wall condition of inspection steel bar truss building carrier plate guarantees the integrality of steel bar truss building carrier plate, and web member foot stall and crossbeam adaptation joint, or consolidate again after support reinforcing bar and crossbeam looks butt, makes a plurality of crossbeam can support steel bar truss building carrier plate simultaneously, and then evenly disperses the load on the steel bar truss building carrier plate, is difficult for taking place fatigue crack and takes place plastic deformation and destroy, helps prolonging the life of sloping floor.
Preferably, the construction step of the step 4 includes the following processing steps:
step 4.1: and (3) taking a plurality of welding studs, and cleaning impurities on the surfaces of the welding studs and the edge surfaces of the steel bar truss floor support plates.
Step 4.2: and a plurality of stud seats are welded on the edge surface of the steel bar truss floor support plate, and the stud seats are equidistantly distributed side by side.
Step 4.3: and correspondingly inserting the welding studs into the stud seats, and fixing the welding studs between the steel bar truss floor support plate and the cross beam.
Through adopting above-mentioned technical scheme, the setting of peg seat can play spacing, location, the effect of direction to the welding peg, the vertical plug in of welding peg seat is under the produced electric arc of welder or the effect of electric current, make the welding peg connect firmly between steel bar truss building carrier plate and crossbeam, namely, realize playing the rigidity combination connection effect in different connecting pieces, strengthen the structural strength of splice seam effectively, simultaneously, can block thick aggregate and pass through the splice seam between two boards, reduce the splice seam between two boards and sag the condition because of the atress is too big, help improving the finished product quality of sloping floor.
Preferably, in the construction step of the step 2, before the steel bar truss floor support plates are hoisted, the actual size of each steel bar truss floor support plate is calculated, so that the outer wing edges of each steel bar truss floor support plate are guaranteed to be lapped on the upper surface of the corresponding beam.
Through adopting above-mentioned technical scheme, the outer wing edge of every steel bar truss building carrier plate all overlap joint at its crossbeam upper surface that corresponds, on the one hand can reduce steel bar truss building carrier plate's outer wing edge atress and take place deformation to improve oblique floor's aesthetic property and structural stability, the second aspect can guarantee that each position of steel bar truss building carrier plate can receive same holding power, thereby can evenly dispersed lay the produced power of load at steel bar truss building carrier plate surface, thereby improve the volume stability of steel bar truss building carrier plate itself, reduce fatigue crack's production.
Preferably, in the construction step of the step 2, two adjacent steel bar truss building carrier plates are aligned and spliced, the splicing seams of the two adjacent steel bar truss building carrier plates are welded and fixed, the straightness error d between the plates is calculated, and the stagger error h between the plates is calculated.
Through adopting above-mentioned technical scheme, through straightness accuracy error d, the error h of staggering between the calculation board, the connection parameter between the control panel, the splice seam welding of two adjacent steel bar truss building carrier plates is fixed, can improve the connection density between two boards to further improve the connection stability between two boards.
Preferably, the construction step of the step 6 includes the following processing steps:
step 6.1: and transferring coarse aggregate into the hopper, transferring the hopper to the throwing position at the top of the steel bar truss floor support plate, and calculating the height between the hopper and the steel bar truss floor support plate.
Step 6.2: and if the height D between the hopper and the steel bar truss floor support plate is less than or equal to 500mm, opening the hopper, unloading coarse aggregate on the top surface of the steel bar truss floor support plate at one time, and then manually dispersing, paving and finishing.
Step 6.3: and if the height D between the hopper and the steel bar truss floor support plate is more than 500mm, opening the hopper, unloading coarse aggregate on the top surface of the steel bar truss floor support plate through an auxiliary device, and calculating the fluctuation amplitude value of the coarse aggregate substitution rate.
Through adopting above-mentioned technical scheme, when the tower crane unloaded the coarse aggregate in the hopper to steel bar truss building carrier plate top, according to the actual throwing height in the scene and adopt different modes of unloading, can improve the flexibility of unloading, can guarantee simultaneously that the coarse aggregate does not destroy steel bar truss building carrier plate when unloading, help improving the finished product quality of sloping floor.
Preferably, in the construction step of the step 6, when the coarse aggregate is unloaded on the top surface of the steel bar truss floor carrier plate, the coarse aggregate is fully watered and wetted.
Through adopting above-mentioned technical scheme, through fully watering moist coarse aggregate, can slow down the too fast and release too much heat of regeneration aggregate concrete hardening process, reduce the inside shrink of concrete layer structure, produce the crack phenomenon, help improving concrete layer structural strength, improve the finished product quality of sloping floor.
Preferably, in the construction step of step 7, when the recycled aggregate concrete is poured on top of the coarse aggregate, the coarse aggregate and the recycled aggregate concrete are fully vibrated from the lower end of the pouring layer point by point until no bubbles appear on the surface of the concrete layer structure, no ash slurry is poured out, and no significant sinking of the concrete layer structure occurs.
Through adopting above-mentioned technical scheme, lay coarse aggregate and regeneration aggregate concrete at steel bar truss building carrier plate top surface under the effect of gravity, a portion can slide to steel bar truss building carrier plate's lower extreme, from down upwards up the point by point and shift up, just fully vibrate, reduce the gap between each material, improve the compactibility of material, help improving the finished product quality of sloping floor.
Preferably, in the construction step of step 8, after the recycled aggregate concrete pouring is completed, before the initial setting of the concrete structure, the surface of the concrete structure is scraped and beaten and flattened, and before the water collection of the concrete structure is dry and hard, the surface of the concrete structure is polished and polished repeatedly.
Through adopting above-mentioned technical scheme, scrape the surface of concrete layer structure and clap level and smooth, polish the surface of concrete layer structure and polish repeatedly, can improve concrete layer structure surface's roughness, reduce the bleeding phenomenon and the sand phenomenon that floats on surface, help improving the cohesiveness between the material in the inclined floor, improve the structural strength of inclined floor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with the prior art, the arrangement of the welding studs and the additional steel bars can effectively block coarse aggregate, so that the coarse aggregate is not easily influenced by gravity or is not easily washed by recycled aggregate concrete with strong fluidity to cause sliding displacement, the accumulation phenomenon of the coarse aggregate is reduced, the coarse aggregate is uniformly dispersed on the top surface of a steel bar truss floor carrier plate and is not accumulated on a control line, the sinking condition of a splicing seam between two plates due to overlarge stress is reduced, the quality of a finished product of an inclined floor slab is improved, and the loading capacity of the inclined floor slab is ensured;
2. the plurality of cross beams can simultaneously support the steel bar truss floor support plate, so that the load on the steel bar truss floor support plate is uniformly dispersed, and the steel bar truss floor support plate is not easy to generate fatigue cracks to generate plastic deformation and damage, thereby being beneficial to prolonging the service life of the inclined floor slab;
3. under the action of gravity, coarse aggregate and recycled aggregate concrete paved on the top surface of the steel bar truss floor support plate partially slide to the lower end of the steel bar truss floor support plate, move up point by point from bottom to top and vibrate fully, gaps among materials are reduced, the compactness of the materials is improved, and the quality of finished products of the inclined floor slabs is improved.
Drawings
Fig. 1 is a flowchart of a swash plate pouring molding construction process in an embodiment of the application.
Fig. 2 is a schematic view of the structure of an inclined floor slab according to an embodiment of the present application.
Fig. 3 is a schematic diagram of splicing two adjacent steel bar truss floor carrier plates in an embodiment of the application.
Fig. 4 is a schematic view of a state in which two adjacent steel bar truss building carrier plates are disassembled in an embodiment of the application.
Fig. 5 is a schematic view showing a structure in which additional reinforcing bars are installed on the top surface of a girder-reinforced floor deck according to an embodiment of the present application.
Fig. 6 is a cross-sectional view of fig. 2.
Reference numerals illustrate: 1. steel bar truss floor support plate; 2. a control line; 3. welding the peg; 31. a steel rope; 4. adding reinforcing steel bars; 411. a connecting frame body; 4111. a V-shaped frame; 4112. a reinforcing frame; 412. an isosceles triangle frame body; 413. u-shaped occlusion grooves; 421. a connecting rod; 422. a mating lever; 43. a reinforcing seat; 431. a clamping groove; 44. a thread connecting sleeve; 5. coarse aggregate; 6. recycled aggregate concrete; 7. and (5) an inclined floor slab.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a construction process for pouring and forming recycled aggregate blocks of a steel bar truss floor carrier plate sloping plate.
Referring to fig. 1, the coarse aggregate 5 applied in the embodiment of the application is a waste concrete block, the steel bar truss floor support plate 1 is used to replace a wood template system to construct the inclined floor slab 7, the material of the steel bar truss floor support plate 1 is determined according to the situation, and an operator selects a hard aluminum plate, a steel plate, an iron plate and an alloy plate according to the actual application scene, so that the steel bar truss floor support plate 1 has stronger structural strength and is not easy to deform, the thickness of the plate body is thinner, the steel bar truss floor support plate 1 is used as a bottom support plate and is used for bearing the coarse aggregate 5 and a concrete layer structure, the steel bar truss floor support plate 1, the coarse aggregate 5 and the concrete layer structure are assembled into a whole to form the inclined floor slab 7, and the steel bar truss floor support plate 1 does not need to be disassembled after the construction of the inclined floor slab 7 is completed, thereby being beneficial to simplifying the construction steps of the inclined floor slab 7.
The construction scene of the inclined floor slab 7 is a working floor with a certain height and an angle, the construction height can be determined according to the actual construction scene, the angle between the working floor and the horizontal plane is A, A is more than 0 degrees and less than or equal to 45 degrees, and in the embodiment of the application, A=20 degrees.
Referring to fig. 1, the construction process for pouring and forming the recycled aggregate blocks of the inclined plates of the steel bar truss floor support plates comprises the following construction steps:
step 1: in the embodiment of the application, the cross section of the cross beam is square, flatness detection and flatness treatment are carried out on the upper surface and the lower surface of the cross beam, and the cross beams are sequentially lapped on the working ground.
Step 1.1: and determining the inclination angle between the cross beam and the horizontal plane, wherein the magnitude of the inclination angle is inversely proportional to the distance between two adjacent cross beams.
Step 1.2: and calibrating the positions of the cross beams, wherein the cross beams are distributed in parallel, and the upper surfaces of the cross beams are positioned on the same straight line.
Before the cross beam is installed on the working ground, the flatness of the working ground is detected, the flatness treatment is carried out on the working ground, the number of pits on the surface of the working ground is reduced, and the cross beam is fixed on the working ground in a screw connection mode or a welding or riveting mode.
In the embodiment of the application, the number of the cross beams is determined according to the situation, when the inclination angle between the cross beams and the horizontal plane is larger, the distance between the cross beams is smaller, the number of the cross beams is larger, when the inclination angle is larger than 15 degrees, the distance between the cross beams is reduced by 15mm when the inclination angle is increased by 1 degree, so that the number of the cross beams is increased, and the cross beams arranged on the working ground are ensured to be distributed equidistantly all the time.
Step 2: in the embodiment of the application, the steel bar truss floor support plates 1 with the same specification are selected, the steel bar truss floor support plates 1 are corrugated plates made of aluminum alloy, the steel bar truss floor support plates 1 are hoisted through a crane, the steel bar truss floor support plates 1 are clamped by means of corresponding hoisting clamps, the steel bar truss floor support plates 1 are not pressed by external force, and therefore the hoisting quality of the steel bar truss floor support plates 1 is ensured until the steel bar truss floor support plates 1 are installed at the top of a beam.
Step 2.1: before the steel bar truss floor support plate 1 is placed on the top of the cross beam, a plurality of web member foot seats are uniformly arranged at the bottom of the steel bar truss floor support plate, and the web member foot seats are fixed on the bottom surface of the steel bar truss floor support plate 1 through welding and are inverted U-shaped seat bodies;
step 2.2: the crane is used for placing the top of the beam on the steel bar truss floor carrier plate 1, so that the opening part of the web member foot seat faces the beam, and the web member foot seat is in fit and clamping connection with the beam.
It is checked whether there is a change in the planar shape of the steel bar truss deck 1, and whether the portion of the steel bar truss deck 1 distributed at the top of the cross beam lacks the web foot.
Step 2.3: if the plane shape of the steel bar truss floor support plate 1 has bending deformation, tilting deformation, split breakage, additional crack or additional hole, the deformed part of the steel bar truss floor support plate 1 is cut by a cutting machine, the cutting mode can adopt mechanical cutting or oxygen cutting, and after the steel bar truss floor support plate 1 is cut, support steel bars are subjected to repair welding on the top surface of a beam close to the steel bar truss floor support plate.
Step 2.4: if the part of the steel bar truss floor support plate 1 distributed at the top of the cross beam is lack of the abdomen rod foot seat, the support steel bars are repair welded on the top surface of the cross beam close to the abdomen rod foot seat.
The height dimension of the support steel bars is consistent with the height dimension of the web member foot seats, and after the support steel bars are additionally arranged on the top surface of the cross beam, the part of the steel bar truss floor support plate 1 paved at the web member foot seats and the part of the steel bar truss floor support plate 1 paved at the support steel bars are positioned on the same inclined plane, so that the straightness of the steel bar truss floor support plate 1 is ensured.
Step 2.5: after guaranteeing that each crossbeam and steel bar truss building carrier plate 1 steady butt, consolidate crossbeam and steel bar truss building carrier plate 1, the reinforcement mode can adopt welding reinforcement or connecting piece to consolidate, makes a plurality of crossbeam can support steel bar truss building carrier plate 1 simultaneously, disperses the load on the steel bar truss building carrier plate 1 evenly, makes steel bar truss building carrier plate 1 be difficult for taking place fatigue crack and take place plastic deformation and destroy.
Specifically, in the construction step of step 2, before hoisting the steel bar truss floor support plates 1, the actual size of each steel bar truss floor support plate 1 is calculated, the length size of the cross beam is calculated, and the width size of the cross beam is calculated.
More specifically, in the construction step of step 2, the adjacent two steel bar truss floor support plates 1 are aligned and spliced, the splicing seams of the adjacent two steel bar truss floor support plates 1 are welded and fixed through a welding machine so as to improve the connection density between the two plates, after the welding and splicing are completed, the splicing seams are ground flat through a grinding machine, welding slag remained near the splicing seams is cleaned, straightness errors d and h between the plates are calculated, the straightness errors d and h between the plates are less than 10mm, and the staggering errors h and h between the plates are calculated.
Referring to fig. 3 and 4, step 3: and a control line 2 of the steel bar truss floor support plate 1 is popped up on the beam, wherein the control line 2 is a splicing line between the two steel bar truss floor support plates 1.
Step 4: the top surface of one side of the steel bar truss floor support plate 1, which is close to the control line 2, is welded with bolts 3, and the welding bolts 3 distributed on two adjacent steel bar truss floor support plates 1 are in one-to-one opposite distribution.
Step 4.1: and (3) cleaning impurities on the surfaces of the welding pegs 3 and the edge surfaces of the steel bar truss floor support plates 1, wherein the impurities are water, oil stain, rust, sand, metal scraps or dust.
Step 4.2: and a plurality of bolt seats are welded on the edge surface of the steel bar truss floor support plate 1, and are distributed at equal intervals and side by side.
Step 4.3: the welding studs 3 are correspondingly inserted into the stud seats, and the welding studs 3 are fixed between the steel bar truss floor support plate 1 and the cross beam through the action of a welding gun.
When the welding stud 3 is additionally arranged, the welding stud 3 is vertically inserted into the stud seat, the welding stud 3 penetrates through the stud seat and the steel bar truss floor plate under the action of electric arc or current generated by a welding gun, the bottom end of the welding stud 3 is fixed on the top surface of the cross beam, and then the welding stud 3 is firmly connected between the steel bar truss floor support plate 1 and the cross beam, so that the structural strength of a spliced seam is effectively enhanced.
Referring to fig. 3 and 5, step 5: the top surface of the steel bar truss floor support plate 1 is uniformly bound with additional steel bars 4, the additional steel bars 4 are paved perpendicular to the top surface of the steel bar truss floor support plate 1, and the additional steel bars 4 comprise connecting rod 421 groups and connecting frame groups.
In the embodiment of the present application, when binding the additional reinforcing bars 4, there are the following two operation modes:
scheme one: the connecting frame group comprises two connecting frame bodies 411, the two connecting frame bodies 411 are symmetrically distributed along the central lines of the two connecting frame bodies, the connecting frame bodies 411 comprise V-shaped frames 4111 and reinforcing frames 4112, the reinforcing frames 4112 are fixed on the top surface of the steel bar truss floor support plate 1 through welding, the V-shaped frames 4111 are fixed on the top surface of the reinforcing frames 4112, the V-shaped frames 4111 incline upwards from the top surface of the reinforcing frames 4112 to the connecting frame bodies 411 which are symmetrical with the center of the V-shaped frames 4111, in the embodiment of the application, a plurality of connecting frame groups are distributed on the same straight line in an equidistant and parallel mode, and the arrangement direction of the connecting frame groups is consistent with the length direction of the steel bar truss floor support plate 1.
Moreover, the connecting rod 421 group includes three connecting rods 421, and the extending direction of the connecting rods 421 is consistent with the length direction of the steel bar truss floor support plate 1, so that two connecting rods 421 are respectively welded on the top surfaces of the reinforcing frames 4112 of the two connecting frame bodies 411, and the other connecting rod 421 is welded between the V-shaped frames 4111 of the two connecting frame bodies 411, so that the three connecting rods 421 and the two connecting frame bodies 411 form an isosceles triangle truss after being assembled.
In the embodiment of the application, the plurality of connecting frame groups are connected in series through the connecting rod 421 group, so that the structural stability of the isosceles triangle truss is effectively improved.
The V-shaped frame 4111 and the reinforcing frame 4112 are both steel bar structures formed by processing round steel bars, the diameter size of the steel bar structures is set to B, and in the embodiment of the application, the distance B between the outer wing edge of the steel bar truss floor support plate 1 and the support steel bars at the end is more than or equal to 5B.
Scheme II: the connecting frame group has a plurality of, and the connecting frame group includes isosceles triangle support body 412, and U-shaped interlock groove 413 has been seted up respectively to the three bight of isosceles triangle support body 412, and the bottom surface of isosceles triangle support body 412 welds with the top surface of steel bar truss building carrier plate 1 mutually, and connecting rod 421 group includes three cooperation pole 422, and three cooperation pole 422 corresponds the welding in three U-shaped interlock groove 413, and the extending direction of cooperation pole 422 is unanimous with the length direction of steel bar truss building carrier plate 1, makes three cooperation pole 422 and isosceles triangle support body 412 constitute isosceles triangle truss after assembling mutually.
In the embodiment of the application, the isosceles triangle frames 412 are connected in series by the connecting rod 421 group, so that the structural stability of the isosceles triangle truss is effectively improved.
In order to improve the splicing stability between two adjacent steel bar truss building carrier plates 1, two ends of a connecting rod 421 distributed on one side close to the top surface of the steel bar truss building carrier plate 1 correspondingly extend out of the first connecting frame group and the last connecting frame group, the top surface of the steel bar truss building carrier plate 1 is fixed with a reinforcing seat 43, a clamping groove 431 is formed in the middle of the reinforcing seat 43, the end of the connecting rod 421 is clamped with the clamping groove 431 close to the reinforcing seat 43, the position of the connecting rod 421 can be limited, and the overall structural stability of the additional steel bars 4 can be improved.
In order to further improve the splicing stability between the two steel bar truss building carrier plates 1, referring to fig. 3 and 4, two ends of the connecting rod 421 distributed on one side far away from the top surface of the steel bar truss building carrier plate 1 correspondingly extend out of the first connecting frame group and the last connecting frame group, meanwhile, external threads are formed on the outer walls of the end parts of the connecting rods 421, the two connecting rods 421 distributed on the two adjacent steel bar truss building carrier plates 1 and arranged on the same plane are abutted, and the two connecting rods 421 are reinforced through the threaded connecting sleeve 44, so that the connection density between the two adjacent steel bar truss building carrier plates 1 is effectively improved.
Synchronously, the steel ropes 31 are bound by the two welding studs 3 distributed on the left side and the right side of the control line 2, the binding number of the steel ropes 31 is determined according to the situation, and an operator can adjust according to the actual situation, so that the linkage between the two adjacent steel bar truss floor support plates 1 is effectively improved.
Referring to fig. 2 and 6, step 6: a layer of coarse aggregate 5 is paved on the top surface of the steel bar truss floor support plate 1, and waste concrete blocks with the diameter size of 60mm-150mm are selected as the coarse aggregate 5.
Step 6.1: coarse aggregate 5 is transported into the hopper through the excavator, the hopper is transported to the throwing position at the top of the steel bar truss floor support plate 1 through the tower crane, and the height between the hopper and the steel bar truss floor support plate 1 is calculated.
Step 6.2: if the height D between the hopper and the steel bar truss floor support plate 1 is less than or equal to 500mm, the hopper is opened, coarse aggregate 5 is unloaded on the top surface of the steel bar truss floor support plate 1 at one time, then the coarse aggregate 5 is manually scattered and paved and trimmed, and the height of the pavement of the coarse aggregate 5 is ensured to be lower than the height of the additional steel bars 4 in the correction process.
Step 6.3: if the height D between the hopper and the steel bar truss floor support plate 1 is more than 500mm, the hopper is opened, coarse aggregate 5 is unloaded on the top surface of the steel bar truss floor support plate 1 through an auxiliary device, the fluctuation range value of the coarse aggregate 5 substitution rate is calculated, and the fluctuation range value of the coarse aggregate 5 substitution rate does not exceed +/-5% of a preset value.
In the embodiment of the application, operators can select different types of auxiliary devices according to actual application scenes, the auxiliary devices are a string barrel, a chute or a chute, one end of each auxiliary device is communicated with the output end of the hopper, and the auxiliary devices are arranged in a downward inclined way by the hopper so as not to damage the steel bar truss floor support plate 1 when coarse aggregate 5 is discharged.
In the construction step of the step 6, when the coarse aggregate 5 is unloaded on the top surface of the steel bar truss floor carrier plate 1, the coarse aggregate 5 is fully watered and wetted, so that the solidification process of the recycled aggregate concrete 6 is slowed down, excessive heat is released, the phenomenon of shrinkage and cracking in the concrete layer structure is reduced, and the structural strength of the concrete layer is improved.
Step 7: and pouring recycled aggregate concrete 6 at the top of the coarse aggregate 5 until gaps among the coarse aggregate 5, between the coarse aggregate 5 and the steel bar truss floor support plate 1 and between the coarse aggregate 5 and the additional steel bars 4 are filled with the recycled aggregate concrete 6, and meanwhile, the recycled aggregate concrete 6 completely covers the additional steel bars 4 and the coarse aggregate 5 to form a concrete layer structure.
Specifically, in the construction step of step 7, when the recycled aggregate concrete 6 is poured at the top of the coarse aggregate 5, the coarse aggregate 5 and the recycled aggregate concrete 6 are fully vibrated by the vibrator from the lower end of the pouring layer, a part of the coarse aggregate 5 and the recycled aggregate concrete 6 paved on the top surface of the steel bar truss floor support plate 1 slide to the lower end of the steel bar truss floor support plate 1 under the action of gravity, and the gaps among materials are reduced and the compactness of the materials is improved by moving the coarse aggregate and the recycled aggregate concrete from bottom to top point by point and fully vibrating under the action of the vibrator.
Specifically, the vibrator is an inserted vibrating rod, and is vibrated while pouring recycled aggregate concrete 6, so that the vibrator can be quickly inserted and pulled out during operation, and can be vertically pulled during vibration, so that vertical vibration is uniform.
More specifically, the vibrator insertion mode can adopt determinant or staggered mode, the vibrator is not mixed to avoid vibration leakage, the vibration time of each point is not less than 30 seconds, the surface condition of the concrete layer structure is observed, and the vibration is stopped until no air bubble appears on the surface of the concrete layer structure, no ash slurry is flooded out and no obvious sinking condition of the concrete layer structure appears.
If the structural embedded parts or reserved holes or places where the reinforcing steel bars are dense are required to be additionally arranged on the top surface of the steel bar truss floor support plate 1, measures are required to be formulated in advance, and the frequency of vibration is enhanced in the construction process.
Step 8: the surface of the concrete layer structure is ground flat by a grinder.
After the recycled aggregate concrete 6 is poured, before the initial setting of the concrete structure, the surface of the concrete structure is scraped and beaten to be smooth through a scraping rule, and before the water collection of the concrete structure is dry and hard, the surface of the concrete structure is polished through a wood washboard and polished repeatedly, so that the flatness of the surface of the concrete structure is improved, the bleeding phenomenon and the floating phenomenon of the surface are reduced, the cohesiveness among materials in the inclined floor slab 7 is improved, and the structural strength of the inclined floor slab 7 is improved.
Step 9: taking a curing film, wherein the curing film is a gunny bag in the embodiment of the application, so as to reduce the construction cost, covering the curing film on the surface of the concrete layer structure, and watering and curing.
And (3) after pouring is finished, 4-6 hours later, the recycled aggregate concrete 6 is subjected to watering maintenance, the watering times are more than or equal to 7 times per day, and the maintenance time is more than or equal to 14 days.
And the recycled aggregate concrete 6 is poured for 36 hours, so that the inclined floor slab 7 is prevented from being pressed by external force.
The foregoing is illustrative of the present application, and is not meant to limit the scope of the application in any way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. The inclined plate pouring molding construction process is characterized by comprising the following construction steps of:
step 1: taking a plurality of cross beams, performing flatness detection and flatness treatment on the upper and lower surfaces of the cross beams, and sequentially overlapping the cross beams;
step 1.1: determining an inclination angle between the cross beam and the horizontal plane, wherein the magnitude of the inclination angle is inversely proportional to the distance between two adjacent cross beams;
step 1.2: calibrating the positions of a plurality of cross beams, wherein the cross beams are distributed in parallel, and the upper surfaces of the cross beams are positioned on the same straight line;
step 2: hoisting a steel bar truss floor support plate (1), wherein the steel bar truss floor support plate (1) is arranged at the top of the cross beam;
step 3: ejecting control lines (2) of the steel bar truss floor support plates (1) on the cross beams, wherein the control lines (2) are splicing lines between the two steel bar truss floor support plates (1);
step 4: the bolts (3) are welded on the top surface of one side, close to the control line (2), of the steel bar truss floor support plate (1), and the welding bolts (3) distributed on two adjacent steel bar truss floor support plates (1) are in one-to-one opposite distribution;
step 5: uniformly binding additional steel bars (4) on the top surface of the steel bar truss floor support plate (1);
step 6: paving a layer of coarse aggregate (5) on the top surface of the steel bar truss floor support plate (1);
step 7: pouring recycled aggregate concrete (6) at the top of the coarse aggregates (5) until gaps among the coarse aggregates (5), between the coarse aggregates (5) and the steel bar truss floor support plate (1) and between the coarse aggregates (5) and the additional steel bars (4) are filled with the recycled aggregate concrete (6) to form a concrete structure;
step 8: grinding the surface of the concrete layer structure;
step 9: and (3) taking a curing film, covering the curing film on the surface of the concrete layer structure, and watering and curing.
2. The swash plate pouring forming process according to claim 1, wherein in the step 2, the process steps include:
step 2.1: before the steel bar truss floor support plate (1) is placed on the top of the cross beam, a plurality of web member foot seats are uniformly arranged at the bottom of the steel bar truss floor support plate (1);
step 2.2: the web member foot seats are in fit and clamping connection with the cross beams, whether the plane shape of the steel bar truss floor support plate (1) is changed or not is checked, and whether the web member foot seats are absent at the parts of the steel bar truss floor support plate (1) distributed at the top of the cross beams or not is checked;
step 2.3: if the plane shape of the steel bar truss floor support plate (1) has bending deformation, tilting deformation, forking damage, additional cracks or additional holes, cutting the deformed part of the steel bar truss floor support plate (1), and after the steel bar truss floor support plate (1) is cut, repairing and welding support steel bars on the top surface of the cross beam close to the steel bar truss floor support plate;
step 2.4: if the part of the steel bar truss floor support plate (1) distributed at the top of the cross beam is lack of the web member foot seat, repairing welding support steel bars on the top surface of the cross beam close to the web member foot seat;
step 2.5: after ensuring that each beam is stably abutted with the steel bar truss floor support plate (1), the beams and the steel bar truss floor support plate (1) are reinforced.
3. The swash plate pouring forming process according to claim 1, wherein in the step 4, the process steps include:
step 4.1: taking a plurality of welding studs (3), and cleaning impurities on the surfaces of the welding studs (3) and the edge surfaces of the steel bar truss floor support plates (1);
step 4.2: a plurality of stud seats are welded on the edge surface of the steel bar truss floor support plate (1), and the stud seats are distributed in an equidistant and side-by-side manner;
step 4.3: and correspondingly inserting the welding studs (3) into the stud seats, and fixing the welding studs (3) between the steel bar truss floor support plate (1) and the cross beam.
4. The inclined plate pouring molding construction process according to claim 1, wherein in the construction step of the step 2, before the steel bar truss floor support plates (1) are hoisted, the actual size of each steel bar truss floor support plate (1) is calculated, and the outer wing edge of each steel bar truss floor support plate (1) is guaranteed to be lapped on the upper surface of the corresponding cross beam.
5. The inclined plate pouring molding construction process according to claim 1, wherein in the construction step of the step 2, two adjacent steel bar truss floor support plates (1) are aligned and spliced, splicing seams of the two adjacent steel bar truss floor support plates (1) are welded and fixed, straightness errors d among the plates are calculated, and stagger errors h among the plates are calculated.
6. The swash plate pouring forming process according to claim 1, wherein in the step 6, the process steps include:
step 6.1: transferring coarse aggregate (5) into a hopper, transferring the hopper to a throwing position at the top of the steel bar truss floor support plate (1), and calculating the height between the hopper and the steel bar truss floor support plate (1);
step 6.2: if the height D between the hopper and the steel bar truss floor support plate (1) is less than or equal to 500mm, opening the hopper, unloading coarse aggregate (5) on the top surface of the steel bar truss floor support plate (1) at one time, and then manually dispersing, paving and finishing;
step 6.3: and if the height D between the hopper and the steel bar truss floor support plate (1) is more than 500mm, opening the hopper, unloading the coarse aggregate (5) on the top surface of the steel bar truss floor support plate (1) through an auxiliary device, and calculating the fluctuation range value of the substitution rate of the coarse aggregate (5).
7. The inclined plate casting construction process according to claim 1 or 6, wherein in the construction step of step 6, when the coarse aggregate (5) is unloaded on the top surface of the steel bar truss floor support plate (1), the coarse aggregate (5) is sufficiently watered.
8. The inclined plate casting construction process according to claim 1 or 6, wherein in the construction step of step 7, when the recycled aggregate concrete (6) is cast on top of the coarse aggregate (5), the coarse aggregate (5) and the recycled aggregate concrete (6) are fully vibrated from the lower end of the casting layer point by point until no bubbles appear on the surface of the concrete structure, no mortar is poured out, and no significant sinking of the concrete structure occurs.
9. The inclined plate pouring molding construction process according to claim 1, wherein in the construction step of the step 8, after the pouring of the recycled aggregate concrete (6) is completed, before the initial setting of the concrete layer structure, the surface of the concrete layer structure is scraped and flattened, and before the water of the concrete layer structure is dried and hardened, the surface of the concrete layer structure is polished and polished repeatedly.
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| CN202310742062.9A CN116752678B (en) | 2023-06-20 | 2023-06-20 | Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108824852A (en) * | 2018-05-29 | 2018-11-16 | 中国建筑第二工程局有限公司 | A kind of large size arc steelframe grandstand space orientation and construction method of installation |
| CN110258886A (en) * | 2019-07-02 | 2019-09-20 | 长沙而道新能源科技有限公司 | A kind of construction method of steel bar truss floor support plate |
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| EP2848750B1 (en) * | 2012-05-08 | 2017-07-12 | Kunshan Ecological Building Technology Co., Ltd | Method of casting in-situ steel wire mesh cement slab with spliced rack and suspended formwork |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824852A (en) * | 2018-05-29 | 2018-11-16 | 中国建筑第二工程局有限公司 | A kind of large size arc steelframe grandstand space orientation and construction method of installation |
| CN110258886A (en) * | 2019-07-02 | 2019-09-20 | 长沙而道新能源科技有限公司 | A kind of construction method of steel bar truss floor support plate |
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