CN110883914B - Prefabricated concrete pi-shaped beam formwork system and construction method thereof - Google Patents
Prefabricated concrete pi-shaped beam formwork system and construction method thereof Download PDFInfo
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- CN110883914B CN110883914B CN201910968033.8A CN201910968033A CN110883914B CN 110883914 B CN110883914 B CN 110883914B CN 201910968033 A CN201910968033 A CN 201910968033A CN 110883914 B CN110883914 B CN 110883914B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0032—Moulding tables or similar mainly horizontal moulding surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0055—Mould pallets; Mould panels
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Abstract
The invention relates to a precast concrete pi-shaped beam formwork system, which comprises a pedestal system, a support system and a template system; the platform body system mainly comprises a rib beam platform seat, a beam platform seat and a platform seat foundation, wherein the rib beam platform seat and the beam platform seat are unit-assembled movable platform seats; the support system comprises a top plate support, a wing plate support and a steel mould support arm, wherein the top plate support, the wing plate support and the steel mould support arm are unit-assembled movable supports; the template system comprises a mixed template consisting of a steel mold and a bamboo plywood and a Pi beam end mold, the steel mold is adopted at the corners of the ribbed plates and the top plate and the edges of the wing plates, and the bamboo plywood is adopted as the bottom mold and the side mold. The invention has the beneficial effects that: the rib beam pedestal and the cross beam pedestal are variable pedestals, flexible assembly and arrangement can be performed according to pi-shaped beams with different sizes, and compared with a traditional concrete pedestal, the technical advantage is obvious.
Description
Technical Field
The invention relates to a pi-shaped beam formwork system, in particular to a precast concrete pi-shaped beam formwork system and a construction method thereof.
Background
In bridge construction, more and more novel bridge structures and bridge construction technologies are applied and excellent benefit results are obtained. The pi-type simply supported beams are widely applied to actual construction, and commonly used pi-type beams are basically prefabricated in advance in order to not influence the construction period, and a prefabricating site needs to be selected and a pi-type beam formwork system needs to be built. However, the traditional precast concrete pi-shaped beam formwork system is complex in structure, single in size, high in manufacturing cost and inconvenient to disassemble and assemble, and brings many problems to the engineering progress and the engineering cost.
Therefore, a precast concrete pi-shaped beam formwork system which has a simple structure, can adjust the size of a formwork and can be quickly connected, easily detached and recycled and a construction method thereof are needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a precast concrete pi-shaped beam formwork system and a construction method thereof.
The precast concrete pi-shaped beam formwork system comprises a pedestal system, a support system and a template system;
the platform body system mainly comprises a rib beam pedestal, a beam pedestal and a pedestal foundation, wherein the rib beam pedestal and the beam pedestal are unit-assembled movable pedestals, the rib beam pedestal unit and the beam pedestal unit are section steel assembly units formed by connecting longitudinal angle steel, vertical angle steel, cross angle steel, transverse angle steel and fixed angle steel through bolts, a plurality of rib beam pedestal units are connected to form rib beam pedestals which are longitudinally arranged, a plurality of beam pedestal units are connected to form beam pedestals which are transversely arranged, and the pedestal foundation is a concrete foundation;
the bracket system comprises a top plate bracket, a wing plate bracket and a steel die supporting arm, wherein the top plate bracket, the wing plate bracket and the steel die supporting arm are unit-assembled movable brackets, the top plate bracket unit and the wing plate bracket unit are section steel assembling units formed by connecting vertical angle steel, transverse angle steel, longitudinal angle steel, cross angle steel and fixed angle steel through bolts, and the steel die supporting arm is fixedly installed on two sides of the top plate bracket and the wing plate bracket through bolts;
the template system include mixed template and pi beam-ends mould that steel mould and bamboo offset plate are constituteed, the bamboo offset plate constitutes die block and the side form of pi roof beam, the die block includes the roof die block, the rib roof die block, crossbeam die block and pterygoid lamina die block, the side form includes rib roof side form and crossbeam side form, adopt the steel mould in the corner of rib board and roof and pterygoid lamina edge, die block and side form adopt the bamboo offset plate, the steel mould passes through the angle sign indicating number with the bamboo offset plate and is connected fixedly, pi beam-ends mould adopts the steel sheet and sets up at rib roof pedestal both ends.
Preferably, the method comprises the following steps: the rib beam pedestal is located crossbeam pedestal both sides, and pedestal basis top is all located to rib beam pedestal and crossbeam pedestal.
Preferably, the method comprises the following steps: the width of the rib beam pedestal is the sum of the width of the rib beam and the thickness of the double bamboo plywood, and the width of the cross beam pedestal is the sum of the width of the cross beam and the thickness of the double bamboo plywood.
Preferably, the method comprises the following steps: the section steel assembly units are connected through buckles and bolts.
The construction method of the precast concrete pi-shaped beam formwork system comprises the following steps:
1) pouring pedestal foundations with corresponding sizes according to the geometrical sizes of the prefabricated pi-shaped beams, and respectively assembling rib beam pedestal units and cross beam pedestal units with corresponding sizes by utilizing the section steel;
2) sequentially placing rib beam pedestal units and cross beam pedestal units according to the positions of rib beams and cross beams in the prefabricated pi-shaped beams, wherein all the units are connected by adopting buckles and bolts;
3) respectively assembling a top plate support unit, a wing plate support unit and a steel mould support arm with corresponding sizes by utilizing profile steel, connecting the top plate support units and the wing plate support units by adopting buckles and bolts, and placing the top plate support and the wing plate support at corresponding positions of the pedestal foundation;
4) according to the width of the rib beam, manufacturing a rib beam bottom die with the same width by adopting a bamboo plywood, wherein the length direction of the bamboo plywood of the rib beam bottom die is consistent with the arrangement direction of a rib beam pedestal, and placing the rib beam bottom die on the rib beam pedestal; according to the width of the cross beam, bamboo plywood is adopted to manufacture a cross beam bottom die with the same width, the length direction of the bamboo plywood of the cross beam bottom die is consistent with the arrangement direction of the cross beam pedestal, and the cross beam bottom die is placed on the cross beam pedestal; the length direction of the bottom die of the rib beam is orthogonal to the length direction of the bottom die of the cross beam;
5) manufacturing a rib beam side mold and a cross beam side mold by using bamboo plywood, and fixing the manufactured rib beam side mold and the cross beam side mold on two sides of a rib beam bottom mold and a cross beam bottom mold respectively by using expansion screws; the joint of the rib beam side mold and the cross beam side mold is also fixed by expansion screws;
6) manufacturing a top plate bottom die and a wing plate bottom die by using a bamboo plywood, simultaneously manufacturing a top rib corner steel die for connecting the top plate bottom die with a rib beam side die, a wing rib corner steel die for connecting the wing plate bottom die with the rib beam side die and a top plate flange corner steel die, and arranging expansion screws at proper positions of the steel dies to form holes and bolt fixing holes;
7) respectively placing the manufactured top plate bottom die and the wing plate bottom die on the top plate support and the wing plate support, and fixing the corner connectors on the bamboo plywood by using expansion screws at the upper end of the rib beam side die, two sides of the top plate bottom die and two sides of the wing plate bottom die at certain intervals;
8) according to the size and the position of the steel die, steel die supporting arms are arranged and connected on two sides of the top plate support unit and the wing plate support unit, meanwhile, the positions of the top plate bottom die and the wing plate bottom die are further adjusted, the top rib corner steel die, the wing rib corner steel die and the top plate flange corner steel die are symmetrically arranged from inside to outside, holes are punched through expansion screws on the steel dies, the steel dies are connected with the bamboo plywood through the expansion screws, and the angle codes are connected with the steel dies through bolt fixing holes in the steel dies;
9) according to the section sizes of the Pi-shaped beam and the rib beam pedestal, a Pi-shaped beam end mold is made of a steel plate, a prestressed hole and a fixing clamp are arranged in the Pi-shaped beam end mold and are placed at two ends of the rib beam pedestal, the Pi-shaped beam end mold, the rib beam pedestal and a steel film are connected and fixed through the fixing clamp, and an inclined strut is arranged on the outer side of the Pi-shaped beam end mold for further fixing, so that the construction of the prefabricated concrete Pi-shaped beam formwork system is completed.
The invention has the beneficial effects that:
(1) the rib beam pedestal and the cross beam pedestal are variable pedestals, flexible assembly and arrangement can be performed according to pi-shaped beams with different sizes, and compared with a traditional concrete pedestal, the technical advantage is obvious.
(2) According to the stress characteristics of the pi-shaped beam in the prefabricating process, the mixed template formed by the steel die and the bamboo plywood is adopted, the respective advantages are fully utilized, the manufacturing cost of the template can be saved, the template is guaranteed not to deform under stress, and the technical and economic advantages are obvious.
(3) Compared with the traditional bracket system, the bracket system can be directly provided with the bamboo plywood, and various longitudinal and transverse stiffening ribs do not need to be arranged between the bracket and the bamboo plywood, so that the technical advantage is remarkable.
(4) The section steel assembly units are formed by bolt connection, and the section steel assembly units are connected by adopting buckles, so that the section steel assembly units are convenient to rapidly assemble and disassemble, are recycled, save materials and cost, and are beneficial to environmental protection.
Drawings
FIG. 1 is a schematic view of a precast concrete Pi-beam formwork system;
FIG. 2 is a schematic view of a stage system;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a perspective view of a stand system in isolation;
FIG. 5 is a schematic view of a stent system;
FIG. 6 is a top view of FIG. 5;
figure 7 is a perspective view of the wing bracket and steel form support arm unit.
Description of reference numerals: 1-pedestal foundation; 2-vertical angle steel; 3-fixed angle steel; 4-expansion screw; 5-corner brace; 6-bolt; 7-rib corner steel mould; 8, a rib beam bottom die; 9-cross angle steel; 10-transverse angle steel; 11-steel form support arm; 12-a rib beam side mould; 13-top rib corner steel die; 14-Top Panel form; 15-wing plate bottom die; 16-top plate flange corner steel die; 17-longitudinal angle steel; 18-rib beam pedestal; 19-beam pedestal; 20-wing plate bracket; 21-top plate holder; 22-pi beam end mode.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The precast concrete pi-shaped beam formwork system comprises a pedestal system, a support system and a formwork system.
The platform body system mainly be by rib beam pedestal 18, crossbeam pedestal 19 and pedestal foundation 1 are constituteed, rib beam pedestal 18 is the assembled movable pedestal of unit with crossbeam pedestal 19, 18 units of rib beam pedestal and 19 units of crossbeam pedestal all are by vertical angle steel 17, vertical angle steel 2, cross angle steel 9, horizontal angle steel 10 passes through the shaped steel equipment unit that bolt 6 connects formation with fixed angle steel 3, the rib beam pedestal 18 of vertically arranging is constituteed in 18 unit connection of a plurality of rib beam pedestal, 19 unit connection of a plurality of crossbeam pedestal constitutes the crossbeam pedestal 19 of transversely arranging, pedestal foundation 1 is the concrete foundation.
The support system comprises a top plate support 21, a wing plate support 20 and a steel mould support arm 11, wherein the top plate support 21, the wing plate support 20 and the steel mould support arm 11 are unit-assembled movable supports, the top plate support 21 unit and the wing plate support 20 unit are all section steel assembly units formed by connecting vertical angle steel 2, horizontal angle steel 10, longitudinal angle steel 17, cross angle steel 9 and fixed angle steel 3 through bolts 6, and the steel mould support arm 11 is fixedly arranged on two sides of the top plate support 21 and the wing plate support 20 through bolting.
The template system include mixed template and pi roof beam end mould 22 that steel mould and bamboo glued board constitute, the bamboo glued board constitutes the die block and the side form of pi roof beam, the die block includes roof die block 14, rib roof die block 8, crossbeam die block and pterygoid lamina die block 15, the side form includes rib roof side form 12 and crossbeam side form, adopt the steel mould preparation in the corner of floor and roof and pterygoid lamina edge, the template at other positions adopts the bamboo glued board preparation, the steel mould passes through angle sign indicating number 5 with the bamboo glued board and is connected fixedly, pi roof beam end mould 22 adopts the steel sheet and sets up at rib roof pedestal 18 both ends.
More specifically, the unit width of the steel die is made according to the maximum common denominator value (in cm) of the different beam spacings in the pi-beam.
More specifically, the rib pedestal 18 is located on both sides of the beam pedestal 19, and both the rib pedestal 18 and the beam pedestal 19 are provided above the pedestal base 1.
More specifically, the width of the rib beam pedestal 18 is the sum of the rib beam width and twice the thickness of the bamboo plywood, and the width of the beam pedestal 19 is the sum of the beam width and twice the thickness of the bamboo plywood.
More specifically, the section steel assembly units are connected in a manner of easy connection and disassembly through buckles, bolts 6 and the like.
The construction method of the precast concrete pi-shaped beam formwork system comprises the following steps:
1) according to the geometrical size of the prefabricated pi-shaped beam, pouring the pedestal foundation 1 with the corresponding size, and respectively assembling the rib beam pedestal 18 unit and the beam pedestal 19 unit with the corresponding size by utilizing the section steel.
2) The rib beam pedestal 18 unit and the beam pedestal 19 unit are sequentially arranged according to the positions of a rib beam and a beam in the prefabricated pi-shaped beam, and all the units are connected in a mode of easy connection and disassembly by adopting buckles, bolts 6 and the like.
3) Utilize shaped steel to assemble respectively corresponding size's roof support 21 unit, pterygoid lamina support 20 unit and steel mould support arm 11, all adopt easy modes of even dismantling such as buckle, bolt 6 between the roof support 21 unit, between the pterygoid lamina support 20 unit to connect to place roof support 21 and pterygoid lamina support 20 in the relevant position department of pedestal basis 1.
4) According to the width of the rib beam, manufacturing a rib beam bottom die 8 with the same width by adopting a bamboo plywood, wherein the length direction of the bamboo plywood of the rib beam bottom die 8 is consistent with the arrangement direction of the rib beam pedestal 18, and placing the rib beam bottom die 8 on the rib beam pedestal 18; according to the width of the cross beam, bamboo plywood is adopted to manufacture a cross beam bottom die with the same width, the length direction of the bamboo plywood of the cross beam bottom die is consistent with the arrangement direction of the cross beam pedestal 19, and the cross beam bottom die is placed on the cross beam pedestal 19; the longitudinal direction of the rib beam bottom mold 8 is orthogonal to the longitudinal direction of the cross beam bottom mold.
5) Manufacturing a rib beam side mold 12 and a cross beam side mold by using bamboo plywood, and fixing the manufactured rib beam side mold 12 and the manufactured cross beam side mold on two sides of a rib beam bottom mold 8 and a cross beam bottom mold respectively by using expansion screws 4; the joint of the rib beam side mold 12 and the cross beam side mold is also fixed by an expansion screw 4.
6) The top plate bottom die 14 and the wing plate bottom die 15 are manufactured by using a bamboo plywood, the top rib corner steel die 13 used for connecting the top plate bottom die 14 with the rib beam side die 12, the wing rib corner steel die 7 used for connecting the wing plate bottom die 15 with the rib beam side die 12 and the top plate flange corner steel die 16 are manufactured simultaneously, and expansion screws for drilling holes and bolt fixing holes are arranged at proper positions of the steel dies.
7) The manufactured top plate bottom die 14 and the manufactured wing plate bottom die 15 are respectively placed on the top plate support 21 and the wing plate support 20, and the corner connectors 5 are fixed on the bamboo plywood by using the expansion screws 4 at the upper ends of the rib beam side dies 12, two sides of the top plate bottom die 14 and two sides of the wing plate bottom die 15 at certain intervals.
8) According to the size and the position of the steel mould, steel mould supporting arms 11 are arranged and connected on two sides of a top plate support 21 unit and a wing plate support 20 unit, the positions of a top plate bottom mould 14 and a wing plate bottom mould 15 are further adjusted, a top rib corner steel mould 13, a wing rib corner steel mould 7 and a top plate flange corner steel mould 16 are symmetrically placed from inside to outside, holes are punched through expansion screws on the steel moulds, the steel moulds are connected with a bamboo plywood by utilizing the expansion screws 4, bolt fixing holes in the steel moulds are formed, and the angle codes 5 are connected with the steel moulds by utilizing bolts 6.
9) According to the section sizes of the Pi-shaped beam and the rib beam pedestal 18, a Pi-shaped beam end die 22 is made of a steel plate, a prestressed hole and a fixing clamp are arranged in the Pi-shaped beam end die 22 and are placed at two ends of the rib beam pedestal 18, the Pi-shaped beam end die 22 is connected and fixed with the rib beam pedestal 18 and a steel film through the fixing clamp, and an inclined strut is arranged on the outer side of the Pi-shaped beam end die 22 for further fixing, so that the construction of a precast concrete Pi-shaped beam formwork system is completed.
Claims (3)
1. The utility model provides a precast concrete pi type roof beam formwork system which characterized in that: comprises a pedestal system, a support system and a template system;
the platform body system mainly comprises a rib beam pedestal (18), a beam pedestal (19) and a platform foundation (1), the rib beam pedestal (18) and the beam pedestal (19) are movable pedestals of unit assembly type, the rib beam pedestal (18) unit and the beam pedestal (19) unit are section steel assembly units formed by connecting longitudinal angle steel (17), vertical angle steel (2), cross angle steel (9), transverse angle steel (10) and fixed angle steel (3) through bolts (6), a plurality of rib beam pedestals (18) are connected in units to form rib beam pedestals (18) which are longitudinally arranged, a plurality of beam pedestals (19) are connected in units to form beam pedestals (19) which are transversely arranged, and the platform foundation (1) is a concrete foundation; the rib beam pedestal (18) is positioned at two sides of the beam pedestal (19), and the rib beam pedestal (18) and the beam pedestal (19) are both arranged above the pedestal foundation (1);
the bracket system comprises a top plate bracket (21), a wing plate bracket (20) and a steel die supporting arm (11), wherein the top plate bracket (21), the wing plate bracket (20) and the steel die supporting arm (11) are unit-assembled movable brackets, the top plate bracket (21) unit and the wing plate bracket (20) unit are section steel assembling units formed by connecting vertical angle steel (2), horizontal angle steel (10), longitudinal angle steel (17), cross angle steel (9) and fixed angle steel (3) through bolts (6), and the steel die supporting arm (11) is fixedly arranged on two sides of the top plate bracket (21) and the wing plate bracket (20) through bolting; the section steel assembling units are connected through a buckle and a bolt (6);
the template system include mixed template and pi roof beam end mould (22) that steel mould and bamboo offset plate are constituteed, the bamboo offset plate constitutes the die block and the side form of pi roof beam, the die block includes roof die block (14), rib roof die block (8), crossbeam die block and pterygoid lamina die block (15), the side form includes rib roof side form (12) and crossbeam side form, adopt the steel mould in the corner of floor and roof and pterygoid lamina edge department, die block and side form adopt bamboo offset plate, the steel mould passes through angle sign indicating number (5) with bamboo offset plate and is connected fixedly, pi roof beam end mould (22) adopt the steel sheet and set up at rib roof pedestal (18) both ends.
2. The precast concrete pi-beam formwork system according to claim 1, wherein: the width of the rib beam pedestal (18) is the sum of the width of the rib beam and two times of the thickness of the bamboo plywood, and the width of the beam pedestal (19) is the sum of the width of the beam and two times of the thickness of the bamboo plywood.
3. The construction method of the precast concrete pi-shaped beam formwork system based on the claim 1 is characterized by comprising the following steps:
1) pouring a pedestal foundation (1) with corresponding size according to the geometric size of the prefabricated pi-shaped beam, and respectively assembling a rib beam pedestal (18) unit and a beam pedestal (19) unit with corresponding size by using section steel;
2) sequentially placing a rib beam pedestal (18) unit and a beam pedestal (19) unit according to the positions of a rib beam and a beam in the prefabricated pi-shaped beam, and connecting the units by adopting buckles and bolts (6);
3) respectively assembling a top plate support (21) unit, a wing plate support (20) unit and a steel mould support arm (11) with corresponding sizes by using profile steel, connecting the top plate support (21) unit and the wing plate support (20) unit by adopting buckles and bolts (6), and placing the top plate support (21) and the wing plate support (20) at corresponding positions of the pedestal foundation (1);
4) according to the width of the rib beam, a bamboo plywood is adopted to manufacture a rib beam bottom die (8) with the same width, the length direction of the bamboo plywood of the rib beam bottom die (8) is consistent with the arrangement direction of a rib beam pedestal (18), and the rib beam bottom die (8) is placed on the rib beam pedestal (18); according to the width of the cross beam, bamboo plywood is adopted to manufacture a cross beam bottom die with the same width, the length direction of the bamboo plywood of the cross beam bottom die is consistent with the arrangement direction of the cross beam pedestal (19), and the cross beam bottom die is placed on the cross beam pedestal (19); the length direction of the bottom die (8) of the rib beam is orthogonal to the length direction of the bottom die of the cross beam;
5) the method comprises the following steps of manufacturing a rib beam side mold (12) and a cross beam side mold by using bamboo plywood, and fixing the manufactured rib beam side mold (12) and the cross beam side mold on two sides of a rib beam bottom mold (8) and a cross beam bottom mold respectively by using expansion screws (4); the joint of the rib beam side mold (12) and the cross beam side mold is also fixed by an expansion screw (4);
6) the method comprises the following steps of manufacturing a top plate bottom die (14) and a wing plate bottom die (15) by using a bamboo plywood, manufacturing a top rib corner steel die (13) for connecting the top plate bottom die (14) with a rib beam side die (12), a wing rib corner steel die (7) for connecting the wing plate bottom die (15) with the rib beam side die (12) and a top plate flange corner steel die (16) at the same time, and arranging expansion screws at proper positions of the steel dies to form holes and bolt fixing holes;
7) placing the manufactured top plate bottom die (14) and wing plate bottom die (15) on a top plate support (21) and a wing plate support (20) respectively, and fixing the corner connectors (5) on the bamboo plywood by using expansion screws (4) according to a certain distance at the upper end of the rib beam side die (12), two sides of the top plate bottom die (14) and two sides of the wing plate bottom die (15);
8) according to the size and the position of a steel die, steel die supporting arms (11) are arranged and connected on two sides of a top plate support (21) unit and a wing plate support (20) unit, the positions of a top plate bottom die (14) and a wing plate bottom die (15) are further adjusted, a top rib corner steel die (13), a wing rib corner steel die (7) and a top plate flange corner steel die (16) are symmetrically arranged from inside to outside, holes are punched through expansion screws on the steel die, the steel die is connected with a bamboo plywood by the expansion screws (4), and an angle code (5) is connected with the steel die by bolts (6) through bolt fixing holes on the steel die;
9) according to the section sizes of the Pi-shaped beam and the rib beam pedestal (18), a Pi-shaped beam end die (22) is manufactured by utilizing a steel plate, a prestressed hole and a fixing clamp are arranged in the Pi-shaped beam end die (22) and are placed at two ends of the rib beam pedestal (18), the Pi-shaped beam end die (22), the rib beam pedestal (18) and a steel film are connected and fixed through the fixing clamp, an inclined strut is arranged on the outer side of the Pi-shaped beam end die (22) for further fixing, and the construction of the prefabricated concrete Pi-shaped beam formwork system is completed.
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| CN114606860B (en) * | 2022-02-15 | 2023-05-09 | 中铁十五局集团有限公司 | Bridge deck construction method using superposed beam cross beam |
| CN114770709A (en) * | 2022-04-02 | 2022-07-22 | 华能陇东能源有限责任公司 | Wind power foundation prefabricated part die |
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| CN105799056B (en) * | 2016-04-08 | 2018-09-21 | 浙江大学城市学院 | The prefabricated formwork system of T beam batch production and construction method |
| CN107100083A (en) * | 2017-06-23 | 2017-08-29 | 杭州江润科技有限公司 | A kind of T-shaped high pier Cast-in-place Bent Cap formwork erecting structure and construction method |
| CN209868936U (en) * | 2019-01-18 | 2019-12-31 | 桂林天一环保科技有限公司 | Prefabricated beam pedestal bottom die composite template |
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