CN110080521B - Large-section prestressed frame beam formwork system and construction method - Google Patents
Large-section prestressed frame beam formwork system and construction method Download PDFInfo
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- CN110080521B CN110080521B CN201910419596.1A CN201910419596A CN110080521B CN 110080521 B CN110080521 B CN 110080521B CN 201910419596 A CN201910419596 A CN 201910419596A CN 110080521 B CN110080521 B CN 110080521B
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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Abstract
The invention provides a large-section prestressed frame beam formwork system and a construction method, wherein an opening support is arranged between opposite opening plates; when a frame beam support system is erected, 2 column side hoop plates are arranged on the outer side of a bearing column along the circumferential direction, and a transverse supporting beam and a sliding supporting beam are arranged on the outer sides of the column side hoop plates on the upper layer and the lower layer respectively; a beam bottom die is arranged on the bearing platform plate, and a steel bar control body is arranged on the beam bottom die; after the pressure plate adjusting bolts are adjusted to connect the connecting steps of the combined pressure plate with the beam side mold, fastening screw rods are arranged between the pressure plate connecting bolts; supporting and reinforcing the template through a transverse pressure rod and a vertical pressure rod; when the frame beam is cured and constructed, the top end of the position control baffle is connected with the sliding maintenance device, and a downpipe is arranged between the sliding maintenance device and the water storage tank. The invention can improve the concrete pouring and maintaining construction quality, improve the stress performance of a construction structure, reduce the difficulty of formwork erection and positioning and protect the construction environment.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a large-section prestressed frame beam formwork system and a construction method, which can improve the stress performance of a construction structure, reduce the difficulty in formwork erection and positioning and protect the construction environment, and are suitable for large-section prestressed frame beam construction engineering.
Background
With the steady and rapid development of national economy in China, concrete structures gradually develop towards large span and large height, and a large number of large-section frame beam column structures appear. Compared with the conventional concrete beam column structure, the concrete beam column structure has the characteristics of large member section size, high supporting requirement of a formwork system, difficult control of concrete pouring construction and the like
The prior art has provided a reinforced concrete frame beam formwork support frame, which comprises a horizontal support rod and a longitudinal support rod, wherein the horizontal support rod and the longitudinal support rod are positioned on the same horizontal plane and are mutually vertical; the horizontal support rod comprises a horizontal telescopic rod and two support end rods, the support end rods comprise a vertical rod piece and a transverse rod piece which are connected through end portions, two ends of the horizontal telescopic rod are movably connected with the end portions of the two transverse rod pieces respectively, and the transverse rod piece is connected with the longitudinal support rod. The structure overcomes the defects of troublesome operation, poor supporting stability and easy generation of expansion, running and deviation of the existing supporting device of the reinforced concrete frame beam to a certain extent, obtains better effect under proper working conditions, and is still to be further researched in the aspects of improving the integrity of a template supporting system, reducing the difficulty of field layout and positioning and the like.
In view of the above, the invention provides a large-section prestressed frame beam formwork system and a construction method, which can improve the concrete pouring and maintenance construction quality, improve the stress performance of a construction structure, reduce the difficulty in formwork erection and positioning, and protect the construction environment.
Disclosure of Invention
The invention aims to provide a large-section prestressed frame beam formwork system and a construction method, which can improve the concrete pouring and maintenance construction quality, improve the stress performance of a construction structure and reduce the difficulty in formwork erection and positioning.
In order to achieve any one of the above purposes, the invention provides a large-section prestressed frame beam formwork system and a construction method, wherein the large-section prestressed frame beam formwork system comprises the following steps of:
1) construction preparation: rechecking the site position of the frame beam and determining the mix proportion of concrete, determining the process of site construction, and preparing materials and devices required by the construction;
2) arranging hole supports: the outer coating groove plates are respectively arranged on the adjacent hollow edges of the opposite opening plates, one end of the jacking screw is connected with the sliding plate connecting bolt, the other end of the jacking screw is connected with the jacking bolt, and the outer coating groove plates are firmly connected with the opening plates through the jacking bolt; placing the pressure-bearing cross beam between the compression baffles on the outer-coated trough plate, and firmly connecting the pressure-bearing cross beam with the compression transverse plate through compression bolts; the bottom end of the reinforcing support column is provided with a support column bottom plate; sleeving the positioning hoop plates on the reinforcing support columns, and firmly connecting the two positioning hoop plates through the connecting ear plates by using hoop plate bolts; two ends of the positioning stay bar are connected with the stay bar bottom plate and the positioning hoop plate through stay bar rotating shafts;
3) erecting a frame beam support system: 2 column side hoop plates are arranged on the outer side of the bearing column along the circumferential direction, and a separated sleeve plate and a joint closing body are arranged between the column side hoop plates and the bearing column; arranging a transverse supporting beam on the outer side of the column side hoop plate on the upper layer, enabling the transverse supporting beam to be connected with the column side hoop plate in a welding mode, and arranging an inclined supporting rod and a supporting rod adjusting bolt between the transverse supporting beam and the separated sleeve plate; firstly, connecting a bottom plate of a supporting beam and a longitudinal supporting beam into a whole, arranging a transverse connecting pull rod and a pull rod adjusting bolt between adjacent longitudinal supporting beams, then arranging the bottom plate of the supporting beam on a transverse supporting beam, and adjusting the plane position of the longitudinal supporting beam through the pull rod adjusting bolt; a bottom plate limiting tenon is arranged between the transverse supporting beam and the supporting beam bottom plate, and the bearing platform plate is connected with the longitudinal supporting beam through a connecting boot cap; a sliding support beam is arranged on the outer side of the column side hoop plate on the lower layer, and the sliding support beam is connected with a sliding beam cable on the outer side of the separated sleeve plate through a cable anchoring plate; a sliding channel and a sliding baffle are arranged on the sliding support beam; a sliding support rod is arranged between the material storage box and the sliding baffle, and a box bottom sliding beam is arranged between the sliding support rod and the sliding support beam;
4) the frame beam template is erected and positioned: rechecking the spatial positions and the stability of the longitudinal supporting beams and the bearing platform plate; a limiting upright rod is arranged on the bearing platform plate, and an upright rod inclined support is arranged between the limiting upright rod and the bearing platform plate; a rod top supporting plate is arranged at the top end of the limiting vertical rod, and a supporting plate reinforcing plate is arranged between the limiting vertical rod and the rod top supporting plate; arranging a beam bottom die on the bearing platform plate, arranging a beam side die on the inner side of a side die bottom baffle of the beam bottom die, and enabling a side die connecting rod at the bottom of the beam side die to penetrate through the side die bottom baffle and then be connected with a side die fastening bolt; the die side connecting bolt on the outer side of the beam side die is connected with the limiting upright rod through a transverse connecting rod; firstly, adjusting a pressure plate adjusting bolt to firmly connect a connecting step of the combined pressure plate with a beam side mold, arranging a fastening screw between pressure plate connecting bolts opposite to each other in a mirror image manner, and controlling the transverse position of the combined pressure plate by tensioning the fastening bolt; a reinforcing steel bar control body and a bottom support embedded groove are arranged on the beam bottom die, a grout stop baffle is arranged between the reinforcing steel bar control body and the bottom support embedded groove, and a bottom die reinforcing plate is arranged at the lower part of the bottom support embedded groove;
5) supporting and reinforcing the template: a column side hoop plate is arranged on the bearing column, and the connecting ear plates are firmly connected through hoop plate bolts; a hoop lateral transverse plate is arranged on the outer side of the column lateral hoop plate, and a first pressure lever baffle plate is arranged on the hoop lateral transverse plate; a plate end joint filling layer is arranged at the joint of the beam bottom die and the bearing column, a second pressure lever baffle plate is arranged on the lower surface of the beam bottom die, and a transverse pressure lever is arranged between the first pressure lever baffle plate and the second pressure lever baffle plate; a vertical compression bar is arranged between the beam bottom die and the hoop lateral transverse plate;
6) and (3) concrete pouring construction: the erection quality of the template is rechecked on site, the construction is performed on concrete, and the flatness of the surface of the frame beam is synchronously controlled;
7) and (3) frame beam maintenance construction: arranging a supporting beam strut on the bearing platform plate at the top of the longitudinal supporting beam, connecting the top end of the supporting beam strut with the cantilever supporting beam, and arranging a supporting beam diagonal brace between the cantilever supporting beam and the bearing platform plate; arranging a position control baffle and a rope block pier on the upper surface of the cantilever support beam, and arranging a position control rope between the position control baffle and the rope block pier; connecting the top end of the position control baffle with the sliding maintenance device, and tightly connecting an elastic connecting plate on the sliding maintenance device with the frame beam; a downpipe is arranged between the sliding maintenance device and the water storage tank.
According to another aspect of the present invention, the present invention provides a large-section prestressed framework formwork system, which is characterized in that the construction is completed according to any one of the construction methods of the large-section prestressed framework formwork system.
Compared with the prior art, the invention has the following beneficial effects:
(1) the jacking screw rod of the large-section prestressed frame beam formwork system is connected with the integral sliding plate, so that the large-section prestressed frame beam formwork system is convenient to lay on site, and can apply transverse jacking force to the external wrap groove plate, thereby improving the structural integrity; meanwhile, a pressing baffle and a pressing transverse plate are arranged between the bearing beam and the outer-coated channel steel, so that the deformation and displacement of the bearing beam can be effectively limited; the reinforcing brace is provided with the positioning hoop plate connected with the positioning brace rod, so that the positioning difficulty of the reinforcing brace can be reduced.
(2) The large-section prestressed frame beam formwork system provided by the invention is provided with the double-layer column side hoop plate, and the inner side of the column side hoop plate is provided with the separated sleeve plate, so that the connection strength of the supporting structure and the bearing column can be effectively improved; the transverse position of the longitudinal supporting beam can be adjusted through the pull rod adjusting bolt according to needs, so that the difficulty in field laying and positioning of the longitudinal supporting beam and the bearing platform plate is reduced; in addition, the material storage box capable of sliding transversely is arranged, so that the difficulty in storing and collecting materials can be reduced, and the field construction environment can be protected.
(3) The large-section prestressed frame beam support die system provided by the invention is provided with the steel bar control body on the beam bottom die, so that the requirement of dynamic control of the thickness of the steel bar cage protection layer at the bottom of the beam can be met; meanwhile, the side bottom baffle, the transverse connecting rod, the combined type pressing plate and the fastening bolt are synchronously adopted to position the beam side die, so that the template positioning precision can be improved while the template supporting difficulty is reduced.
(4) According to the invention, vertical and horizontal top pressure can be synchronously applied to the beam bottom die through the vertical pressure plate and the horizontal pressure rod, so that the problem of die explosion at the beam end is avoided.
(5) The concrete beam is maintained by spraying water by adopting the sliding maintenance device, so that the quality of concrete maintenance construction can be improved; meanwhile, the water intercepting trough plate of the sliding maintenance device is connected with the water storage tank, so that the maintenance water can be recycled while the environment pollution caused by the maintenance water is avoided.
Drawings
Fig. 1 is a construction flow chart of a large-section prestressed frame beam formwork system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the portal support layout based on fig. 1.
Fig. 3 is a schematic view illustrating a structure of the coupling of the integrated slide plate and the slide plate coupling groove of fig. 2.
Fig. 4 is a schematic view of the structure of the frame beam-support system of fig. 1.
Fig. 5 is a schematic cross-sectional view of the structure of the longitudinal corbel of fig. 4.
FIG. 6 is a schematic view of a connecting structure of a box bottom sliding beam and a sliding support beam in FIG. 4;
fig. 7 is a schematic cross-sectional view of the beam formwork support structure of fig. 1.
Fig. 8 is a schematic longitudinal sectional view of the beam formwork supporting structure of fig. 1.
Fig. 9 is a schematic view of the reinforcing bar retainers of fig. 7 coupled to the bottom mold of the girder.
Fig. 10 is a schematic structural view of the modular platen of fig. 7 and 8.
Fig. 11 is a schematic structural view of the formwork support reinforcement construction of fig. 1.
Fig. 12 is a structural view illustrating maintenance work of the frame beam of fig. 1.
Fig. 13 is a cross-sectional view of the skid maintenance device of fig. 12.
In the figure: 1-a frame beam; 2-a hole plate; 3, wrapping a trough plate outside; 4-pressing the screw; 5-a sliding plate connecting bolt; 6-jacking and pressing the bolt; 7-a pressure-bearing beam; 8-pressing the baffle; 9-a compression bolt; 10-pressing the transverse plate; 11-a reinforcing brace; 12-a strut bottom plate; 13-positioning the hoop plate; 14-hoop plate bolts; 15-connecting ear plates; 16-positioning a brace rod; 17-a strut shaft; 18-a strut bottom plate; 19-column side straps; 20-a support column; 21-a separate deck; 22-seam closures; 23-transverse bracing beams; 24-diagonal braces; 25-strut adjusting bolt; 26-corbel bottom plate; 27-longitudinal corbel; 28-transverse connecting pull rod; 29-a pull rod adjusting bolt; 30-a water supply pump; 31-bottom plate limiting falcon; 32-a load-bearing platform plate; 33-connecting boot cap; 34-a sliding support beam; 35-sliding beam guy cable; 36-stay cable anchor plate; 37-a glide channel; 38-a slide damper; 39-material storage case; 40-a sliding stay bar; 41-box bottom sliding beam; 42-limiting vertical rods; 43-vertical rod diagonal bracing; 44-a pole top strut; 45-bracing plate stiffening plate; 46-beam bottom die; 47-beam side form; 48-side bottom flaps; 49-side die connecting rods; 50-a filter residue plate; 51-side form fastening pins; 52-mold side connecting pins; 53-transverse tie bars; 54-a pressure plate adjusting bolt; 55-a combined press plate; 56-connecting step; 57-press plate connecting bolt; 58-fastening screw; 59-tensioning the fastening bolt; 60-steel bar control body; 61-bottom support embedded groove; 62-a pulp stop baffle; 63-bottom die reinforcing plate; 64-hoop lateral transverse plates; 65-a strut first baffle; 66-plate end joint filling layer; 67-a compression bar second baffle; 68-transverse strut; 69-vertical compression bar; 70-beam brace strut; 71-cantilever supporting beams; 72-bracing beam diagonal bracing; 73-position control baffle; 74-rope block pier; 75-a position control rope; 76-a sliding maintenance device; 77-elastic connection plate; 78-a water storage tank; 79-downpipe; 80-a slide plate connecting groove; 81-integral skate board; 82-baffle side support; 83-a slide plate limiting groove; 84-a sprinkler head; 85-a skateboard connection board; 86-strap connecting shaft; 87-sleeve plate fastening ribs; 88-a sliding supporting plate; 89-a bottom support of the reinforcement cage; 90-bottom support adjusting rod; 91-turning a handle; 92-built-in bolt; 93-water cut-off groove plate; 94-moving the water pipe; 95-composite closing plate; 96-water pipe buttress; 97-water supply pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Fig. 1 is a flow chart of a construction process of a large-section prestressed frame beam formwork system according to an embodiment of the present invention, and referring to fig. 1, a construction method of a large-section prestressed frame beam formwork system includes the following construction steps:
1) construction preparation: rechecking the site position of the frame beam 1, determining the mixing proportion of concrete, determining the process of site construction, and preparing materials and devices required by the construction;
2) arranging hole supports: an outer-coating groove plate 3 is respectively arranged on the adjacent hollow edges of the opposite hole plates 2, one end of a jacking screw rod 4 is connected with a sliding plate connecting bolt 5 arranged on the outer-coating groove plate 3, the other end of the jacking screw rod is connected with a jacking bolt 6, and the outer-coating groove plate 3 and the hole plates 2 are firmly connected; the pressure-bearing cross beam 7 is arranged between the pressing baffle plates 8 on the outer packing trough plate 3 and is fixedly arranged on the pressing transverse plate 10 on the pressure-bearing cross beam 7, and particularly, the pressure-bearing cross beam 7 and the pressing transverse plate 10 can be firmly connected through the pressing bolt 9; the bottom end of the reinforcing support column 11 is provided with a support column bottom plate 12 which is arranged on the pressure-bearing cross beam 7; the positioning hoop plate 13 is sleeved on the reinforcing support column 11 and fixed, in the embodiment of the invention, the positioning hoop plate 13 adopts a hoop plate bolt 14 to firmly connect the two positioning hoop plates 13 through a connecting lug plate 15; two ends of a positioning stay bar 16 are connected with a stay bar bottom plate 18 and a positioning hoop plate 13 through stay bar rotating shafts 17 and are arranged on the pressure-bearing cross beam 7;
3) erecting a frame beam support system: at least 2 column side hoop plates 19 are arranged on the outer side of the bearing column 20 along the circumferential direction, and a separated sleeve plate 21 and a joint closing body 22 are sequentially arranged between the column side hoop plates 19 and the bearing column 20; a transverse supporting beam 23 is arranged on the outer side of the column side hoop plate 19 on the upper layer, in one embodiment of the invention, the transverse supporting beam 23 is connected with the column side hoop plate 19 in a welding way, and an inclined supporting rod 24 and a supporting rod adjusting bolt 25 are arranged between the transverse supporting beam 23 and the separated sleeve plate 21; firstly, connecting the corbel bottom plate 26 and the longitudinal corbel 27 into a whole, arranging a transverse connecting pull rod 28 and a pull rod adjusting bolt 29 between the adjacent longitudinal corbels 27, then placing the corbel bottom plate 26 on the transverse supporting beam 23, and adjusting the plane position of the longitudinal corbel 27 through the pull rod adjusting bolt 29; in one embodiment of the invention, a bottom plate limiting tenon 31 is arranged between the transverse supporting beam 23 and the supporting beam bottom plate 26, and the bearing platform plate 32 is connected with the longitudinal supporting beam 27 through a connecting shoe cap 33; a sliding support beam 34 is arranged on the outer side of the column side hoop plate 19 on the lower layer, and the sliding support beam 34 is connected with a sliding beam cable 35 on the outer side of the separated sleeve plate 21 through a cable anchoring plate 36; a sliding channel 37 and a sliding baffle 38 are arranged on the sliding support beam 34; a sliding support rod 40 is arranged between the material storage box 39 and the sliding baffle 38, a box bottom sliding beam 41 is arranged between the sliding support beam 34 and the sliding support beam, and the sliding support rod is arranged on the sliding channel 37;
4) the frame beam template is erected and positioned: rechecking the spatial position and stability of the longitudinal support beams 27 and the bearing platform plate 32; a limiting upright rod 42 is arranged on the bearing platform plate 32, and in one embodiment of the invention, an upright rod inclined strut 43 is arranged between the limiting upright rod 42 and the bearing platform plate 32; a rod top supporting plate 44 is arranged at the top end of the limiting upright rod 42, and a supporting plate reinforcing plate 45 is arranged between the limiting upright rod 42 and the rod top supporting plate 44 in one embodiment of the invention; arranging a beam bottom die 46 on the bearing platform plate 32, placing a beam side die 47 on the inner side of a side die bottom baffle plate 48 of the beam bottom die 46, and connecting a side die connecting rod 49 at the bottom of the beam side die 47 with a side die fastening bolt 51 after penetrating through the side die bottom baffle plate 48; the die side connecting bolt 52 at the outer side of the beam side die 47 is connected with the limiting upright rod 42 through a transverse connecting rod 53; firstly, adjusting a pressure plate adjusting bolt 54 to firmly connect a connecting step 56 of the combined pressure plate 55 with the beam side mold 47, then arranging a fastening screw 58 between the pressure plate connecting bolts 57 which are opposite in mirror image, and controlling the transverse position of the combined pressure plate 55 by tensioning the fastening bolt 59; a steel bar control body 60 and a bottom support embedded groove 61 are arranged on the beam bottom die 46, a grout stop baffle 62 is arranged between the steel bar control body 60 and the bottom support embedded groove 61, and a bottom die reinforcing plate 63 is arranged at the lower part of the bottom support embedded groove 61;
5) supporting and reinforcing the template: a column side hoop plate 19 is arranged on the bearing column 20, and the connecting lug plates 15 are firmly connected through hoop plate bolts 14; a hoop lateral transverse plate 64 is arranged on the outer side of the column lateral hoop plate 19, and a first pressing rod baffle plate 65 is arranged on the hoop lateral transverse plate 64; a plate end gap filling layer 66 is arranged at the joint of the beam bottom die 46 and the bearing column 20, a pressure bar second baffle 67 is arranged on the lower surface of the beam bottom die, and a transverse pressure bar 68 is arranged between the pressure bar first baffle 65 and the pressure bar second baffle 67; a vertical pressure rod 69 is arranged between the beam bottom die 46 and the hoop lateral transverse plate 64;
6) and (3) concrete pouring construction: the erection quality of the template is rechecked on site, the construction is performed on concrete, and the flatness of the surface of the frame beam 1 is synchronously controlled;
7) and (3) frame beam maintenance construction: a supporting beam strut 70 is arranged on the bearing platform plate 32 at the top of the longitudinal supporting beam 27, the top end of the supporting beam strut 70 is connected with an overhanging supporting beam 71 to form an L-shaped structure, and a supporting beam inclined strut 72 is arranged between the overhanging supporting beam 71 and the bearing platform plate 32; a position control baffle 73 and a rope block pier 74 are arranged on the upper surface of the cantilever beam 71, and a position control rope 75 is arranged between the position control baffle 73 and the rope block pier 74; the top end of the position control baffle 73 is connected with the sliding maintenance device 76, and the elastic connecting plate 77 on the sliding maintenance device 76 is tightly connected with the frame beam 1; a downpipe 79 is provided between the skid maintenance device 76 and the storage tank 78.
In the step 2), the opening support consists of a pressure-bearing beam 7 and an outer-coated trough plate 3; the cross section of the outer wrapping groove plate 3 is U-shaped, the opening plate 2 is wrapped, a sliding plate connecting groove 80 and a pressing baffle plate 8 are arranged on the opposite side surfaces of the outer wrapping groove plate 3, the sliding plate connecting groove 80 is connected with an integral sliding plate 81, the pressing baffle plate 8 is arranged on the upper side of the outer wrapping groove plate 2, and a baffle plate side support 82 is arranged between the pressing baffle plate 8 and the outer wrapping groove plate 3;
the sliding plate connecting groove 80 is provided with a sliding plate limiting groove 83; the integral sliding plate 81 is provided with a sliding plate connecting bolt 5, and a sliding plate connecting plate 85 is arranged at the joint of the integral sliding plate 81 and the sliding plate limiting groove 83; the pressure-bearing cross beam 7 is formed by rolling profile steel, and a stay bar bottom plate 18 is arranged on the upper surface of the pressure-bearing cross beam.
In the step 3), the separated sleeve plates 21 are formed by rolling steel plates and are integrally arranged on the inner sides of the column side hoop plates 19 along the vertical direction, and sleeve plate connecting shafts 86 are arranged between the connected separated sleeve plates 21; the separate sleeve plate 21 is connected with the column side hoop plate 19 through a sleeve plate fastening rib 87; the cross section of the bottom plate limiting tenon 31 is in a right trapezoid shape, and the right-angle side is connected with the supporting beam bottom plate 26; the sliding support beam 34 is rolled by steel plate, and is connected with the box bottom sliding beam 41 through a sliding support plate 88, and the sliding support plate 88 is arranged in the sliding channel 37.
The lateral bracing beam 23 is disposed outward perpendicularly to the column-side hoop plate 19, and the slide bracing beam 34 is disposed outward perpendicularly to the column-side hoop plate 19.
In the step 4), a side die connecting rod 49 and a die side connecting bolt 52 are arranged on the outer side of the beam side die 47; the rod top supporting plate 44 is vertically welded with the limiting upright rod 42, and the lower surface of the rod top supporting plate is provided with a pressure plate adjusting bolt 54 and a combined pressure plate 55; the lower part of the combined pressing plate 55 is provided with a connecting step 56 connected with the beam side mould 47, and the inner side of the combined pressing plate is provided with a pressing plate connecting bolt 57; the steel bar control body 60 consists of a steel bar cage bottom support 89, a bottom support adjusting rod 90 and a rotating handle 91, and the steel bar cage bottom support 89 and the rotating handle 91 are respectively vertically welded with the bottom support adjusting rod 90; the grout stop baffle 62 is a rubber plate, and two ends of the grout stop baffle are respectively connected with the bottom support 89 of the reinforcement cage and the bottom support embedded groove 61; the plane width of the bottom die reinforcing plate 63 is 10-20 cm wider than the bottom support embedded groove 61, and a built-in bolt 92 connected with the bottom support adjusting rod 90 is arranged on the bottom die reinforcing plate 63.
In the step 7), one end of a position control rope 75 is connected with the position control baffle 73, and the other end of the position control rope passes through the rope baffle and then is connected with external winding and pulling equipment; the sliding maintenance device 76 consists of a water intercepting trough plate 93, a movable water pipe 94, a combined closing plate 95 and an elastic connecting plate 77; the movable water pipe 94 is communicated with a water supply pipe 97 and is connected with the water intercepting trough plate 93 through a water pipe buttress 96, and the upper surface of the movable water pipe is provided with a water spraying head 84; the combined closing plate 95 is vertically arranged along the periphery of the water cut-off trough plate 93, and the top end of the combined closing plate is connected with the elastic connecting plate 77; the water storage tank 78 is provided therein with a filter cake 50, and the side wall is communicated with a water supply pipe 97 and the water supply pump 30.
Fig. 2 is a schematic view of a layout structure of portal frames in fig. 1, fig. 3 is a schematic view of a connection structure of an integral type slide plate and a slide plate connection groove in fig. 2, fig. 4 is a schematic view of a erection structure of a beam frame system in fig. 1, fig. 5 is a schematic view of a cross section of a structure of a longitudinal support beam in fig. 4, fig. 6 is a schematic view of a connection structure of a box bottom slide beam and a slide support beam in fig. 4, fig. 7 is a schematic view of a cross section of a beam formwork erection structure in fig. 1, fig. 8 is a schematic view of a longitudinal section of a beam formwork erection structure in fig. 1, fig. 9 is a schematic view of a connection structure of a reinforcing steel bar control body and a beam bottom die in fig. 7, fig. 10 is a schematic view of a combined type press plate structure in fig. 7 and fig.
The width of the frame beam 1 is 60cm, the height is 1.2m, and the concrete strength grade is C35.
The thickness of the orifice plate 2 is 120mm, and the concrete strength grade is C35.
The jacking screw rod 4 is made of a stainless steel screw rod with the diameter of 30 mm.
The sliding plate connecting bolt 5 and the jacking bolt 6 are both stainless steel bolts with the inner diameter of 30 mm. .
The pressing baffle 8 and the pressing transverse plate 10 are both formed by cutting steel plates with the thickness of 10 mm.
The compression bolt 9 is a stainless steel bolt with a diameter of 22 mm.
The reinforcing support column 11 is made of a steel pipe with the diameter of 100mm and the wall thickness of 2 mm.
The support column bottom plate 12 and the positioning hoop plate 13 are both formed by rolling steel plates with the thickness of 2 mm.
The hoop plate bolts 14 are high-strength bolts with a diameter of 20 mm.
The connecting lug plate 15 and the positioning hoop plate 13 are integrally rolled, and the height is 5 cm.
The positioning stay bar 16 is made of a steel pipe with a diameter of 30 mm.
The stay bar rotating shaft 17 is connected with the positioning hoop plate 13 in a welding mode through a spherical hinge with the diameter of 30 mm.
The stay bar bottom plate 18 and the column side hoop plate 19 are both formed by rolling steel plates with the thickness of 2 mm.
The bearing column 20 has a plan size of 1000 x 1000mm and a concrete strength rating of C40.
The separated sleeve plate 21 is formed by rolling a steel plate, is integrally arranged on the inner side of the column side hoop plate 19 along the vertical direction, and is formed by rolling the steel plate with the thickness of 10 mm.
The seam obturator 22 is made of a rubber material having a thickness of 1 mm.
The transverse bracing beam 23 is made of H-shaped steel with the specification of 200 × 200 × 8 × 12.
The diagonal brace 24 is a stainless steel screw rod with a diameter of 60 mm.
The stay adjusting bolt 25 is a stainless steel bolt with an inner diameter of 60 mm.
The corbel bottom plate 26 is made of a steel plate with a thickness of 2 mm.
The longitudinal corbel 27 is made of H-shaped steel with the specification of 150 × 150 × 7 × 10.
The transverse connecting pull rod 28 is a stainless steel screw rod with a diameter of 30 mm.
The pull rod adjusting bolt 29 is a stainless steel bolt with an inner diameter of 30 mm.
The water supply pump 30 uses a 220v motor and a medium flow water pump with a head of 24 m.
Spacing falcon 31 cross-section of bottom plate is right trapezoid, adopts the steel sheet rolling that thickness is 2mm to form.
The load-bearing platform plate 32 is made of a steel plate having a thickness of 6 mm.
The connecting boot cap 33 is formed by welding steel bars with the thickness of 10 mm.
The sliding support beam 34 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the sliding support beam is rectangular, the width of the sliding support beam is 400mm, and the height of the sliding support beam is 200 mm.
The sliding beam cable 35 is a steel wire rope with the diameter of 26 mm.
The cable anchor plate 36 is made of a steel plate with the thickness of 10 mm.
The width of the sliding channel 37 is 200mm, and the height is 100 mm; the sliding baffle 38 is made of a steel plate with the thickness of 2cm through rolling.
The material storage box 39 is formed by welding steel plates with the thickness of 1mm, and the volume of the material storage box is 1.5m 3.
The sliding support rod 40 is made of steel bars with the diameter of 20 mm.
The box bottom sliding beam 41 is formed by rolling a steel plate with the thickness of 10mm and is welded with the sliding supporting plate 88; the sliding supporting plate 88 is made of steel with the thickness of 160mm and the height of 80mm, and the strength grade is Q235.
The limiting vertical rod 42 is a steel pipe with the diameter of 60 mm.
The vertical rod inclined strut 43 is made of a steel pipe with the diameter of 30 mm.
The rod top supporting plate 44 and the supporting plate reinforcing plate 45 are both formed by rolling steel plates with the thickness of 2 mm.
The beam bottom die 46 and the beam side die 47 both adopt alloy templates with the thickness of 3 mm.
The side die bottom baffle 48 is cut from a steel plate with the thickness of 2 mm.
The side die connecting rod 49 adopts a screw rod with the diameter of 30 mm.
The filter residue plate 50 is made of a steel plate with the thickness of 1mm, and holes with the diameter of 2mm are formed in the filter residue plate 50.
The side die fastening bolt 51 adopts a stainless steel bolt with the inner diameter of 30mm
The die side connecting bolt 52 is welded with the beam side die 47, and a screw hole with the inner diameter of 30mm is arranged inside the die side connecting bolt.
The transverse connecting rod 53 is formed by combining a stainless steel screw rod with the diameter of 30mm and a bolt.
The pressure plate adjusting bolt 54 is made of a bolt and a bolt with adjustable length.
The combined pressing plate 55 is formed by rolling a steel plate with the thickness of 2mm, and the height of the connecting step 56 is 2mm and the length is 5 cm.
The pressure plate connecting bolt 57 and the tensioning fastening bolt 59 are both bolts with the inner diameter of 10 mm.
The fastening screw 58 is a screw having a diameter of 10 mm.
The steel bar control body 60 consists of a steel bar cage bottom support 89, a bottom support adjusting rod 90 and a rotating handle 91; wherein the bottom support 89 and the rotating handle 91 of the steel reinforcement cage are both formed by rolling steel plates with the thickness of 2 mm; the bottom support adjusting rod 90 is made of a screw rod with the diameter of 30 mm.
The plane size of the bottom support embedded groove 61 is the same as that of the bottom support 89 of the reinforcement cage; the grout stop plate 62 is a rubber sheet with a thickness of 1 mm.
The bottom die reinforcing plate 63 is formed by rolling a steel plate with the thickness of 10mm, and the plane width of the bottom die reinforcing plate is 15cm wider than that of the bottom support embedded groove 61.
Hoop lateral plate 64 adopts the steel sheet that thickness is 2cm, and depression bar first baffle 65 and depression bar second baffle 67 all adopt the steel sheet that thickness is 10mm to make.
The plate end gap filling layer 66 is cut from a rubber plate with a thickness of 10 mm.
The transverse pressure lever 68 and the vertical pressure lever 69 are respectively formed by combining screws and bolts with the diameters of 20mm and 30mm, and the length of the transverse pressure lever and the vertical pressure lever is adjustable.
The support beam strut 70 and the support beam diagonal brace 72 are both rolled from H-shaped steel with the specification of 150 × 150 × 7 × 10. The cantilever support beams 71 are all H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8, and are connected with the support beam support columns 70 and the support beam inclined supports 72 in a welding mode.
The position control baffle 73 is made of a steel plate with the thickness of 2 mm.
The rope block 74 is rolled from a steel plate having a thickness of 2 mm.
The position control rope 75 is a steel wire rope with the diameter of 10 mm.
The sliding maintenance device 76 consists of a water intercepting trough plate 93, a movable water pipe 94, a combined closing plate 95 and an elastic connecting plate 77. Wherein the elastic connecting plate 77 is made of a rubber plate with a thickness of 10 mm; the movable water pipe 94 is a steel pipe with the diameter of 60 mm; the water intercepting trough plate 93 is a steel plate with the thickness of 1 mm; the combined closing plate 95 is made of a steel plate with the thickness of 2mm and is welded with the water intercepting trough plate 93.
The water storage tank 78 is formed by welding iron sheets with the thickness of 0.2mm, and the volume of the water storage tank is 1m 3.
The downpipe 79 and the water supply pipe 97 are both rubber pipes with a diameter of 60 mm.
The sliding plate connecting groove 80 and the integral sliding plate 81 are both formed by rolling steel plates with the thickness of 10 mm.
The height of the sliding plate limiting groove 83 is 10mm, and the width is 100 mm; the slide plate connecting plate 85 is made of a steel plate with the thickness of 6mm and the width of 80 mm.
The sprinkler head 84 is a water-saving sprinkler head.
The sleeve plate connecting shaft 86 adopts a rotating shaft with the diameter of 10 mm.
The strap fastening ribs 87 are made of stainless steel screws with a diameter of 20 mm.
The built-in bolt 92 is a bolt having an inner diameter of 30 mm.
The water pipe buttress 96 is made of a steel pipe material with a diameter of 100 mm.
The opening support consists of a pressure-bearing cross beam 7 and an outer-coated trough plate 3. The pressure-bearing cross beam 7 adopts H-shaped steel with the specification of 300 multiplied by 10 multiplied by 15. The cross section of the outer wrapping groove plate 3 is U-shaped and is formed by rolling a steel plate with the thickness of 2 mm.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. A construction method of a large-section prestressed frame beam formwork system is characterized by comprising the following construction steps:
1) construction preparation: rechecking the site position of the frame beam (1), determining the mixing proportion of concrete, determining the process of site construction, and preparing materials and devices required by the construction;
2) arranging hole supports: an outer-coating groove plate (3) is respectively arranged on the adjacent empty edges of the opposite hole plates (2), one end of a jacking screw rod (4) is connected with a sliding plate connecting bolt (5) arranged on the outer-coating groove plate (3), the other end of the jacking screw rod is connected with a jacking bolt (6), and the outer-coating groove plate (3) and the hole plates (2) are firmly connected; the pressure-bearing cross beam (7) is arranged between the pressing baffle plates (8) on the outer packing trough plate (3) and is fixedly arranged on the pressing transverse plate (10) on the pressure-bearing cross beam (7); the bottom end of the reinforcing support column (11) is provided with a support column bottom plate (12) which is arranged on the pressure-bearing cross beam (7); sleeving the positioning hoop plate (13) on the reinforcing support column (11) and fixing; two ends of a positioning stay bar (16) are connected with a stay bar bottom plate (18) and a positioning hoop plate (13) through a stay bar rotating shaft (17) and are arranged on the pressure-bearing cross beam (7);
3) erecting a frame beam support system: at least 2 column side hoop plates (19) are arranged on the outer side of the bearing column (20) along the circumferential direction, and a separated sleeve plate (21) and a joint closing body (22) are sequentially arranged between the column side hoop plates (19) and the bearing column (20) from outside to inside; a transverse supporting beam (23) is arranged on the outer side of the column side hoop plate (19) on the upper layer; firstly, connecting a supporting beam bottom plate (26) and a longitudinal supporting beam (27) into a whole, arranging a transverse connecting pull rod (28) and a pull rod adjusting bolt (29) between the adjacent longitudinal supporting beams (27), then placing the supporting beam bottom plate (26) on a transverse supporting beam (23), and adjusting the plane position of the longitudinal supporting beam (27) through the pull rod adjusting bolt (29); a bottom plate limiting tenon (31) is arranged between the transverse supporting beam (23) and the supporting beam bottom plate (26), so that the bearing platform plate (32) is connected to the longitudinal supporting beam (27); a sliding support beam (34) is arranged on the outer side of the column side hoop plate (19) of the lower layer, so that the sliding support beam (34) is connected with a sliding beam cable (35) on the outer side of the separated sleeve plate (21) through a cable anchoring plate (36); a sliding channel (37) and a sliding baffle (38) are arranged on the sliding support beam (34); a sliding support rod (40) is arranged between the material storage box (39) and the sliding baffle (38), and a box bottom sliding beam (41) is arranged between the sliding support rod and the sliding support beam (34);
4) the frame beam template is erected and positioned: rechecking the spatial position and stability of the longitudinal support beam (27) and the bearing platform plate (32); a limiting upright rod (42) is arranged on the bearing platform plate (32); a rod top supporting plate (44) is arranged at the top end of the limiting upright rod (42); arranging a beam bottom die (46) on the bearing platform plate (32), placing a beam side die (47) on the inner side of a side die bottom baffle (48) of the beam bottom die (46), and enabling a side die connecting rod (49) at the bottom of the beam side die (47) to penetrate through the side die bottom baffle (48) and then be connected with a side die fastening bolt (51); the die side connecting bolt (52) at the outer side of the beam side die (47) is connected with the limiting upright rod (42) through a transverse connecting rod (53); firstly, adjusting a pressure plate adjusting bolt (54) to firmly connect a connecting step (56) of a combined pressure plate (55) with a beam side mold (47), then arranging a fastening screw rod (58) between pressure plate connecting bolts (57) which are opposite in a mirror image, and controlling the transverse position of the combined pressure plate (55) by tensioning a fastening bolt (59); a steel bar control body (60) and a bottom support embedded groove (61) are arranged on the beam bottom die (46), a grout stop baffle (62) is arranged between the steel bar control body (60) and the bottom support embedded groove (61), and a bottom die reinforcing plate (63) is arranged at the lower part of the bottom support embedded groove (61);
5) supporting and reinforcing the template: a fixed column side hoop plate (19) is arranged on the bearing column (20); a hoop lateral transverse plate (64) is arranged on the outer side of the column lateral hoop plate (19), and a first pressing rod baffle plate (65) is arranged on the hoop lateral transverse plate (64); a second pressure lever baffle plate (67) is arranged on the lower surface of the beam bottom die (46), and a transverse pressure lever (68) is arranged between the first pressure lever baffle plate (65) and the second pressure lever baffle plate (67); a vertical compression bar (69) is arranged between the beam bottom die (46) and the hoop lateral transverse plate (64);
6) and (3) concrete pouring construction: the erection quality of the template is rechecked on site, the construction is performed on concrete, and the flatness of the surface of the frame beam (1) is synchronously controlled;
7) and (3) frame beam maintenance construction: arranging a supporting beam strut (70) on a bearing platform plate (32) at the top of a longitudinal supporting beam (27), connecting the top end of the supporting beam strut (70) with an overhanging supporting beam (71), and arranging a supporting beam diagonal support (72) between the overhanging supporting beam (71) and the bearing platform plate (32); a position control baffle (73) and a rope block pier (74) are arranged on the upper surface of the cantilever beam (71), and a position control rope (75) is arranged between the position control baffle (73) and the rope block pier (74); the top end of the position control baffle (73) is connected with the sliding maintenance device (76), and an elastic connecting plate (77) on the sliding maintenance device (76) is tightly connected with the frame beam (1); a downpipe (79) is arranged between the sliding maintenance device (76) and the water storage tank (78).
2. The construction method of the formwork system for the large-section prestressed frame beam according to claim 1, characterized in that: in the step 2), the opening support consists of a pressure-bearing beam (7) and an outer-coated trough plate (3); the cross section of the outer wrapping groove plate (3) is U-shaped, a sliding plate connecting groove (80) and a pressing baffle plate (8) are arranged on the outer wrapping groove plate (3), the sliding plate connecting groove (80) is connected with an integral sliding plate (81), and a baffle plate side support (82) is arranged between the pressing baffle plate (8) and the outer wrapping groove plate (3); a sliding plate limiting groove (83) is arranged on the sliding plate connecting groove (80); a sliding plate connecting bolt (5) is arranged on the integral sliding plate (81), and a sliding plate connecting plate (85) is arranged at the joint of the integral sliding plate (81) and the sliding plate limiting groove (83); the pressure-bearing cross beam (7) is formed by rolling profile steel, and a support rod bottom plate (18) is arranged on the upper surface of the pressure-bearing cross beam.
3. The construction method of the formwork system for the large-section prestressed frame beam according to claim 1, characterized in that: in the step 2), the pressure-bearing beam (7) is firmly connected with the compression transverse plate (10) through the compression bolt (9), and the two positioning hoop plates (13) are firmly connected through the connecting lug plates (15) by adopting hoop plate bolts (14).
4. The construction method of the formwork system for the large-section prestressed frame beam according to claim 1, characterized in that: in the step 3), the separated sleeve plates (21) are integrally arranged on the inner sides of the column side hoop plates (19) along the vertical direction, and sleeve plate connecting shafts (86) are arranged between the connected separated sleeve plates (21); the separated sleeve plate (21) is connected with the column side hoop plate (19) through a sleeve plate fastening rib (87); the transverse section of the bottom plate limiting tenon (31) is in a right-angle trapezoid shape, and the right-angle side is connected with the supporting beam bottom plate (26); the sliding support beam (34) is connected with the box bottom sliding beam (41) through a sliding support plate (88), and the sliding support plate (88) is arranged in the sliding channel (37).
5. The construction method of the formwork system of the large-section prestressed frame beam according to claim 1, characterized in that in step 3), the transverse bracing beam (23) is welded with the column side hoop plate (19), and the diagonal bracing bar (24) and the bracing bar adjusting bolt (25) are arranged between the transverse bracing beam (23) and the separate sleeve plate (21); the bearing platform plate (32) is connected with the longitudinal support beam (27) through a connecting boot cap (33).
6. The construction method of the formwork system for the large-section prestressed frame beam according to claim 1, characterized in that: in the step 4), a side die connecting rod (49) and a die side connecting bolt (52) are arranged on the outer side of the beam side die (47); the rod top supporting plate (44) is vertically welded with the limiting upright rod (42), and the lower surface of the rod top supporting plate is provided with a pressure plate adjusting bolt (54) and a combined pressure plate (55); the lower part of the combined pressing plate (55) is provided with a connecting step (56) connected with the beam side die (47), and the inner side of the combined pressing plate is provided with a pressing plate connecting bolt (57); the steel bar control body (60) consists of a steel bar cage bottom support (89), a bottom support adjusting rod (90) and a rotating handle (91), and the steel bar cage bottom support (89) and the rotating handle (91) are respectively and vertically welded with the bottom support adjusting rod (90); the grout stop baffle (62) is a rubber plate, and two ends of the grout stop baffle are respectively connected with the bottom support (89) of the reinforcement cage and the bottom support embedded groove (61); the plane width of the bottom die reinforcing plate (63) is wider than that of the bottom support embedded groove (61), and a built-in bolt (92) connected with the bottom support adjusting rod (90) is arranged on the bottom die reinforcing plate (63).
7. The construction method of the large-section prestressed frame beam formwork system according to claim 1, characterized in that: an upright inclined strut (43) is arranged between the limiting upright (42) and the bearing platform plate (32), and a supporting plate reinforcing plate (45) is arranged between the limiting upright (42) and a rod top supporting plate (44).
8. The construction method of the formwork system for the large-section prestressed frame beam according to claim 1, characterized in that: in the step 7), one end of a position control rope (75) is connected with a position control baffle (73), and the other end of the position control rope penetrates through the rope baffle and then is connected with external rolling and pulling equipment; the sliding maintenance device (76) consists of a water interception trough plate (93), a movable water pipe (94), a combined closing plate (95) and an elastic connecting plate (77); the movable water pipe (94) is communicated with a water supply pipe (97) and is connected with the water interception trough plate (93) through a water pipe buttress (96), and the upper surface of the movable water pipe is provided with a water spraying head (84); the combined closing plate (95) is vertically arranged along the periphery of the water cut-off trough plate (93), and the top end of the combined closing plate is connected with the elastic connecting plate (77); the inside of the water storage tank (78) is provided with a filter residue plate (50), and the side wall is communicated with a water supply pipe (97) and a water supply pump (30).
9. The construction method of the large-section prestressed frame beam formwork system according to claim 1, characterized in that in step 5), the column side hoop plate (19) firmly connects the connecting ear plate (15) through hoop plate bolts (14), and a plate end gap filling layer (66) is arranged at the joint of the beam bottom formwork (46) and the load-bearing column (20).
10. A large-section prestressed frame beam formwork system, characterized in that the construction is completed according to the construction method of the large-section prestressed frame beam formwork system of any one of claims 1 to 9.
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| CN201910419596.1A CN110080521B (en) | 2019-05-20 | 2019-05-20 | Large-section prestressed frame beam formwork system and construction method |
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| DE4141917C1 (en) * | 1991-12-18 | 1993-05-27 | Peri Gmbh, 7912 Weissenhorn, De | |
| JP2750666B2 (en) * | 1994-10-24 | 1998-05-13 | 安藤建設株式会社 | Movable formwork for precast concrete members |
| DE102007016724B3 (en) * | 2007-04-07 | 2008-10-02 | Peri Gmbh | Beam formwork with automatic de-shuttering of the inner shield |
| KR101886838B1 (en) * | 2016-10-26 | 2018-08-08 | 인하대학교 산학협력단 | supporting system for formwork |
| CN206562762U (en) * | 2017-03-14 | 2017-10-17 | 上海嘉实（集团）有限公司 | A kind of Fabricated Beam-Slab aluminum dipping form fast assembling disassembling structure |
| CN206599993U (en) * | 2017-03-24 | 2017-10-31 | 杭州通达集团有限公司 | A kind of cast-in-place tool-type erecting device for crossing beam forms |
| CN108951840B (en) * | 2018-08-08 | 2020-02-04 | 核工业西南建设集团有限公司 | Method for constructing arc-shaped outer wall of basement based on single-side formwork support of shaped support |
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