An assembled tensioning integrated mold for prestressed strip ribs

Abstract

The present invention discloses an assembled tensioning integrated mold for prestressed strip ribs, and relates to the technical field of concrete composite slabs. The assembled tensioning integrated mold for prestressed strip ribs consists of a base unit, a tensioning end mold, an anchoring end beam, a jack and a bolt. A plurality of the base units are connected end to end by the bolts, the anchoring end beam is installed at one end of the connected base units, and is connected by the bolts, two jacks are installed at the other end of the connected base units, and are arranged at the end of the supporting side mold; the tensioning end mold is installed on the base unit and anchored on the jack by a tensioning rod. The present invention is composed of a gridded assembly unit, which is flexible and compact, can be flexibly adjusted according to the length of the prestressed strip slab, has a high repetition rate of assembly unit use, the prestressed tensioning device is integrated with the template, the mold material utilization rate is high, the manufacturing cost is low, and the workers are easy to master, which is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of building moulds, and in particular to an assembled tensioning integrated mould for prestressed strip ribs. Background Art

[0002] In my country, precast concrete components are often manufactured in factories using standard steel formwork, which requires a large one-time investment and is difficult to change in specifications. Only one specification of precast concrete components can be produced. Once the specifications of precast concrete components change, the standard steel formwork used in the early stage often cannot be used in the manufacture of new precast components. The steel formwork must be customized again, which is a serious waste and leads to high costs for precast component processing plants. It is also not in line with the development trend of my country's national strategies such as "dual carbon".

[0003] Prestressed strip ribs are thin and light, with high rigidity. They can be widely used in prefabricated decorative components, and can be combined with prefabricated concrete composite panels to form related new composite panel products, solving the problem of cumbersome on-site installation. Prestressed strip ribs are often highly standardized in width, but the length varies greatly. Conventional shaped steel molds often need to be customized in multiple ways, which has high production costs. Generally, the prestressed tensioning pedestal is separated from the mold and requires additional construction, which further increases the cost, is not conducive to the transfer of production sites, and has low flexibility.

[0004] Therefore, exploring steel molds for the production of prestressed strip ribs that are easy to disassemble and assemble, flexible and adjustable, and cost-controlled is of great significance for reducing the production cost of prefabricated components, improving efficiency, and enhancing production flexibility. Summary of the invention

[0005] The purpose of the present invention is to provide an assembled tensioning integrated mold for prestressed strip ribs, which is flexible and adjustable, has variable specifications, and integrates a tensioning pedestal with the mold, further reducing costs and improving the turnover rate of component parts.

[0006] Technical solution:

[0007] The assembled tensioning integrated mold 1 for prestressed strip ribs is composed of a base unit 2, a tensioning end mold 3, an anchoring end beam 4, a jack 5 and bolts 6.

[0008] Furthermore, the base unit 2 is composed of a rib bottom mold 2.1 and a supporting side mold 2.2. The rib bottom mold 2.1 is provided with transverse rib grooves 2.3 and longitudinal rib grooves 2.4 according to the size of the prestressed strip ribs, for forming reinforcing ribs of the prestressed strip ribs, and a stiffening plate 2.5 is provided at the end of the longitudinal rib groove 2.4. The supporting side formwork 2.2 is composed of a C-type column 2.6, a connecting partition 2.7 and a gasket 2.8; the connecting partition 2.7 is arranged at both ends of the C-type column 2.6, and is composed of a stiffening triangle plate 2.9 and a partition 2.10; an open cross groove 2.11 and a bolt hole 2.12 are arranged on the partition 2.10; the open cross groove 2.11 corresponds to the open groove of the C-type column 2.6; the gasket 2.8 is arranged at the upper edge of the open groove of the C-type column 2.6; the open cross groove 2.11 and the open groove of the C-type column 2.6 are used to pass through the tensioning end formwork 3.

[0009] Furthermore, the tensioning end mold 3 is composed of a tensioning rod 3.1, a transverse plate 3.2, a side longitudinal plate 3.3, a slot bar group 3.4 and an end plate 3.5. The tensioning rod 3.1 is connected to both sides of the transverse plate 3.2, and the connection position corresponds to the center position of the open cross groove 2.11; the side longitudinal plate 3.3 is connected to the upper and lower surfaces of the transverse plate 3.2, and the position corresponds to the tensioning rod 3.1, and the size can pass through the open cross groove 2.11. The slot bar group 3.4 is set on the upper surface of the transverse plate 3.2, and a slot of the size of the prestressed steel wire diameter is reserved in the middle, parallel to the tensioning rod 3.1, for anchoring the prestressed steel wire with pier head. The end plate 3.5 is transversely arranged on the upper surface of the transverse plate 3.2, and a notch is reserved at the position corresponding to the slot between the slot bar group 3.4; a gap is set between the end plate 3.5 and the slot bar group 3.4.

[0010] Furthermore, the anchoring end beam 4 is composed of a square steel 4.1, a cushion block 4.2 and a T-shaped fastener 4.3. The cushion blocks 4.2 are on both sides of the surface of the square steel 4.1, and bolt holes 4.4 are arranged at corresponding positions on the cushion blocks 4.2 and the square steel 4.1. The T-shaped fastener 4.3 is arranged on the surface of the square steel 4.1, on the same side as the cushion block 4.2, and a gap is arranged between the T-shaped fasteners 4.3 for anchoring the prestressed steel wire with pier head.

[0011] Furthermore, a plurality of the base units 2 are connected end to end by bolts 6 and assembled according to the length of the prestressed strip ribs; the anchoring end beam 4 is installed at one end of the connected base unit 2 and connected by bolts 6; two jacks 5 are installed at the other end of the connected base unit 2 and are arranged at the end of the supporting side form 2.2; the tensioning end form 3 is installed on the base unit 2, the end of the transverse plate 3.2 and the side longitudinal plate 3.3 pass through the open cross slot 2.11, the tensioning rod 3.1 passes through the center of the open cross slot 2.11, and is anchored on the jack 5, which is used to adjust the position of the tensioning end form 3 and tension the prestressed tendons.

[0012] Furthermore, the upper surface of the cushion strip 2.8 is flush with the surface of the prestressed strip, so as to control the thickness of the prestressed strip.

[0013] Furthermore, the upper surface of the end plate 3.5 is flush with the surface of the prestressed strip, so as to control the thickness of the prestressed strip.

[0014] Furthermore, the upper surface of the T-shaped fastener 4.3 is flush with the surface of the prestressed strip, which is used to control the thickness of the prestressed strip. The gaps between the T-shaped fasteners 4.3 correspond to the slots between the slot strip groups 3.4, which facilitates the installation of the prestressed steel wire.

[0015] Further, the use process of the assembled tensioning integrated mold is as follows:

[0016] 1) According to the length of the prestressed strip ribs, assemble the mold and spray the release agent;

[0017] 2) Install the custom-length prestressed steel wire with pier heads at both ends into the gaps provided between the T-shaped fasteners 4.3 and into the slots between the slot bar groups 3.4;

[0018] 3) The jack 5 is operated for tensioning, and the gap in the mold is sealed with a plastic strip;

[0019] 4) pouring cement-based materials into the mold and curing them;

[0020] 5) After the strength of the cement-based material reaches the required level, the jack 5 is released and the prestressed steel wire is cut at the position of the tensioning end die 3;

[0021] 6) De-mould the hardened prestressed strip ribs and cut off the excess prestressed steel wires at both ends.

[0022] Beneficial effects:

[0023] 1) The present invention adopts an assembly method to form a whole, the assembly unit has a high degree of standardization, is flexible and compact, can be flexibly adjusted according to the length of the prestressed strip plate, and has a high repetition rate of use of the assembly unit.

[0024] 2) The prestressed tensioning device and the template system of the present invention are an integrated device, with high mold material utilization and low manufacturing cost.

[0025] 3) The present invention is easy and convenient to assemble, and operators can quickly master it, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic diagram of the structure of an assembled tensioning integrated mold for prestressed strip ribs.

[0027] Figure 2 It is a schematic diagram of the structure of the base unit of the present invention.

[0028] Figure 3 It is a schematic diagram of the rib bottom mold structure of the present invention.

[0029] Figure 4 It is a schematic diagram of the supporting side mold structure of the present invention.

[0030] Figure 5 It is a schematic diagram of the C-type column structure of the present invention.

[0031] Figure 6 It is a schematic diagram of the connecting partition structure of the present invention.

[0032] Figure 7 It is a schematic diagram of the tensioning end mold structure of the present invention.

[0033] Figure 8 It is a schematic diagram of the anchoring end beam structure of the present invention.

[0034] In the figure: 1. Assembled tensioning integrated mold; 2. Base unit; 2.1. Rib bottom mold; 2.2. Support side mold; 2.3. Transverse rib groove; 2.4. Longitudinal rib groove; 2.5. Stiffening plate; 2.6. C-type column; 2.7. Connecting partition; 2.8. Pad; 2.9. Stiffening triangle plate; 2.10. Partition; 2.11. Open cross groove; 2.12. Bolt hole; 3. Tensioning end mold; 3.1. Tensioning rod; 3.2. Transverse plate; 3.3. Side longitudinal plate; 3.4. Slot bar group; 3.5. End plate; 4. Anchor end beam; 4.1. Square steel; 4.2. Pad; 4.3. T-type fastener; 4.4. Bolt hole; 5. Jack. DETAILED DESCRIPTION

[0035] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0036] like Figure 1-8As shown, the assembled tensioning integrated mold 1 for prestressed strip ribs is composed of a base unit 2, a tensioning end mold 3, an anchoring end beam 4, a jack 5 and bolts 6.

[0037] The base unit 2 is composed of a rib bottom mold 2.1 and a supporting side mold 2.2. The rib bottom mold 2.1 is provided with a transverse rib groove 2.3 and a longitudinal rib groove 2.4 according to the size of the prestressed strip rib, and a stiffening plate 2.5 is provided at the end of the longitudinal rib groove 2.4. The supporting side mold 2.2 is composed of a C-shaped column 2.6, a connecting partition 2.7 and a pad 2.8; the connecting partition 2.7 is provided at both ends of the C-shaped column 2.6, and is composed of a stiffening triangle plate 2.9 and a partition 2.10; an open cross groove 2.11 and a bolt hole 2.12 are provided on the partition 2.10; the open cross groove 2.11 corresponds to the open groove of the C-shaped column 2.6; the pad 2.8 is provided at the upper edge of the open groove of the C-shaped column 2.6.

[0038] The tensioning end mold 3 is composed of a tensioning rod 3.1, a transverse plate 3.2, a side longitudinal plate 3.3, a slot bar group 3.4 and an end plate 3.5. The tensioning rod 3.1 is connected to both sides of the transverse plate 3.2, and the connection position corresponds to the center position of the open cross groove 2.11; the side longitudinal plate 3.3 is connected to the upper and lower surfaces of the transverse plate 3.2, and the position corresponds to the tensioning rod 3.1, and the size can pass through the open cross groove 2.11. The slot bar group 3.4 is set on the upper surface of the transverse plate 3.2, and a slot of the size of the prestressed steel wire diameter is reserved in the middle, parallel to the tensioning rod 3.1. The end plate 3.5 is horizontally arranged on the upper surface of the transverse plate 3.2, and a notch is reserved at the position corresponding to the slot between the slot bar group 3.4; a gap is set between the end plate 3.5 and the slot bar group 3.4.

[0039] The anchor end beam 4 is composed of a square steel 4.1, a cushion block 4.2 and a T-shaped fastener 4.3. The cushion blocks 4.2 are located on both sides of the surface of the square steel 4.1, and bolt holes 4.4 are arranged at corresponding positions on the cushion blocks 4.2 and the square steel 4.1. The T-shaped fastener 4.3 is arranged on the surface of the square steel 4.1, on the same side as the cushion blocks 4.2, and a gap is arranged between the T-shaped fasteners 4.3.

[0040] The plurality of base units 2 are connected end to end by bolts 6; the anchoring end beam 4 is installed at one end of the connected base units 2 and connected by bolts 6; two jacks 5 are installed at the other end of the connected base units 2 and are arranged at the end of the supporting side mold 2.2; the tensioning end mold 3 is installed on the base unit 2, the end of the transverse plate 3.2 and the side longitudinal plate 3.3 pass through the open cross slot 2.11, the tensioning rod 3.1 passes through the center of the open cross slot 2.11, and is anchored on the jack 5.

[0041] The upper surface of the cushion strip 2.8 is flush with the surface of the prestressed strip board.

[0042] The upper surface of the end plate 3.5 is flush with the surface of the prestressed strip plate.

[0043] The upper surface of the T-shaped fastener 4.3 is flush with the surface of the prestressed strip, and a gap is provided between the T-shaped fasteners 4.3 to correspond to the slots between the slot strip groups 3.4.

[0044] The implementation modes of the present invention are described in detail above in conjunction with the embodiments, but the present invention is not limited to the above-mentioned implementation modes. For ordinary technicians in this technical field, after knowing the contents recorded in the present invention, they can make several equivalent changes and substitutions thereto without departing from the principle of the present invention, and these equivalent changes and substitutions should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An assembled tensioning integrated mold for prestressed strip ribs, characterized in that: The assembled tensioning integrated mold (1) for prestressed strip ribs is composed of a base unit (2), a tensioning end mold (3), an anchoring end beam (4), a jack (5) and bolts (6); The base unit (2) is composed of a rib bottom mold (2.1) and a supporting side mold (2.2); the rib bottom mold (2.1) is provided with a transverse rib groove (2.3) and a longitudinal rib groove (2.4) according to the size of the prestressed strip rib; a stiffening plate (2.5) is provided at the end of the longitudinal rib groove (2.4); the supporting side mold (2.2) is composed of a C-shaped column (2.6), a connecting partition (2.7) and a cushion strip (2.8); the connecting partition (2.7) is arranged at both ends of the C-shaped column (2.6) and is composed of a stiffening triangle plate (2.9) and a partition (2.10); an open cross groove (2.11) and a bolt hole (2.12) are arranged on the partition (2.10); the open cross groove (2.11) corresponds to the open groove of the C-shaped column (2.6); the cushion strip (2.8) is arranged at the upper edge of the open groove of the C-shaped column (2.6); The tensioning end mold (3) is composed of a tensioning rod (3.1), a transverse plate (3.2), a side longitudinal plate (3.3), a slot bar group (3.4) and an end plate (3.5). The tensioning rod (3.1) is connected to both sides of the transverse plate (3.2), and the connection position corresponds to the center position of the open cross groove (2.11); the side longitudinal plate (3.3) is connected to the upper and lower surfaces of the transverse plate (3.2), and the position corresponds to the tensioning rod (3.1), and the size can be determined by the open cross groove (2.11). The slot bar group (3.4) is set on the upper surface of the transverse plate (3.2), and a slot of the same diameter as the prestressed steel wire is reserved in the middle, parallel to the tensioning rod (3.1). The end plate (3.5) is transversely arranged on the upper surface of the transverse plate (3.2), and a notch is reserved at the position corresponding to the slot between the end plate (3.5) and the slot bar group (3.4); a gap is set between the end plate (3.5) and the slot bar group (3.4); The anchoring end beam (4) is composed of a square steel (4.1), a cushion block (4.2) and a T-shaped fastener (4.3); the cushion block (4.2) is located on both sides of the surface of the square steel (4.1); bolt holes (4.4) are provided at corresponding positions on the cushion block (4.2) and the square steel (4.1); the T-shaped fastener (4.3) is provided on the surface of the square steel (4.1) on the same side as the cushion block (4.2); and a gap is provided between the T-shaped fasteners (4.3); A plurality of the base units (2) are connected end to end via bolts (6); the anchor end beam (4) is installed at one end of the connected base units (2) and is connected via bolts (6); two jacks (5) are installed at the other end of the connected base units (2) and are arranged at the end of the supporting side mold (2.2); the tensioning end mold (3) is installed on the base unit (2), the end of the transverse plate (3.2) and the side longitudinal plate (3.3) pass through the open cross groove (2.11), and the tensioning rod (3.1) passes through the center of the open cross groove (2.11) and is anchored on the jack (5).

2. The assembled tensioning integrated mold for prestressed strip ribs according to claim 1, characterized in that: The upper surface of the cushion strip (2.8) is flush with the surface of the prestressed strip board.

3. The assembled tensioning integrated mold for prestressed strip ribs according to claim 1, characterized in that: The upper surface of the end plate (3.5) is flush with the surface of the prestressed strip plate.

4. The assembled tensioning integrated mold for prestressed strip ribs according to claim 1, characterized in that: The upper surface of the T-shaped fastener (4.3) is flush with the surface of the prestressed strip plate, and a gap is provided between the T-shaped fasteners (4.3) to correspond to the slots between the slot strip groups (3.4).

5. The assembled tensioning integrated mold for prestressed strip ribs according to claim 1, characterized in that: The usage process is as follows: 1) According to the length of the prestressed strip ribs, assemble the mold and spray the release agent; 2) installing a prestressed steel wire of a customized length with pier heads at both ends into the gap provided between the T-shaped fasteners (4.3) and into the slots between the slot bar groups (3.4); 3) The jack (5) is operated to perform tensioning, and the gap in the mold is sealed with a plastic strip; 4) Pour cement-based materials into the mold and perform curing; 5) After the strength of the cement-based material reaches the required level, the jack (5) is released, and the prestressed steel wire is cut at the position of the tensioning end die (3); 6) De-mould the hardened prestressed strip ribs and cut off the excess prestressed steel wires at both ends.

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