Structural conversion layer type steel concrete beam casting mold and its hanging mold construction method

Abstract

The present application relates to a casting mold for a structural transition layer steel concrete beam, which relates to the field of beam casting, and comprises a main steel beam arranged at a designed position, a bottom template is arranged on the main steel beam, the bottom template is formed by a plurality of template blocks connected to each other, two adjacent template blocks are connected by connecting bolts, the bottom template is connected to the main steel beam by a U-shaped hanging rod, the U-shaped hanging rod passes through the bottom template, and a fixing nut is threadedly connected to one end of the U-shaped hanging rod passing through the bottom template, side templates are arranged on both sides of the bottom template, and a support is arranged between the two side templates. The present application has the effect of improving the increase of engineering expenditure and extension of construction period in the construction of structural transition layer steel concrete beams due to the erection of load-bearing brackets.

Description

Technical Field

[0001] The present application relates to the field of beam casting, and in particular to a structural conversion layer type steel concrete beam casting mold and a mold hanging construction method thereof. Background Art

[0002] At present, with the increasing number of high-rise buildings in cities, the utilization rate of space in high-rise buildings is also an issue that needs to be considered. In order to improve the utilization rate of urban buildings, people usually set the lower floors as shopping malls and shopping centers with larger spaces, and the upper floors as residences, office buildings, etc. In this case, structural transfer layer type steel concrete beams came into being.

[0003] The traditional casting of structural transfer layer type steel concrete beams is to set up a load-bearing support below the designed position of the beam, then lay the formwork on the load-bearing support, finally lay the steel bars in the formwork and bundle them, and finally pour the concrete to form the form. Since the cross-sectional area and span of the structural transfer layer type steel concrete beam are large, the safety and reliability of the load-bearing support has a great influence on the casting quality of the structural transfer layer type steel concrete beam, which requires a lot of time to design the load-bearing support. The construction of the load-bearing support will not only increase the project expenditure, but also prolong the construction period. Summary of the invention

[0004] In order to improve the problem of increased engineering expenditure and prolonged construction period due to the erection of load-bearing supports during the construction of structural transition layer type steel concrete beams, the present application provides a structural transition layer type steel concrete beam casting mold and a hanging mold construction method thereof.

[0005] On the one hand, the present application provides a structural conversion layer type steel concrete beam casting mold adopts the following technical solution:

[0006] A structural transition layer steel concrete beam casting mold includes a main steel beam set at a designed position, a bottom template is provided on the main steel beam, and the bottom template is formed by a plurality of template blocks connected to each other. Two adjacent template blocks are connected by connecting bolts, and the bottom template is connected to the main steel beam by a U-shaped hanging rod, and the U-shaped hanging rod passes through the bottom template. The U-shaped hanging rod has a fixing nut threadedly connected at one end passing through the bottom template, and side templates are provided on both sides of the bottom template, and a support is provided between the two side templates.

[0007] By adopting the above technical scheme, when installing the casting mold, first hoist the main steel beam to the designed position, and place the U-shaped hanging rod on the main steel beam, then hoist the template blocks to the bottom of the main steel beam in turn after assembly, then pass the U-shaped hanging rod through the template blocks, and screw on the fixing nuts to fix the template blocks under the main steel beam, and continue to hoist the template blocks in turn in the same way, and then fix the template blocks in turn through connecting bolts to form a bottom template, and then install the side template on the bottom template, and fix the side template through the support, so as to complete the installation of the casting mold. Compared with the prior art, this scheme reduces the time for building the load-bearing support, thereby shortening the construction period of the structural transition layer steel concrete beam, and also reduces construction investment, which is more economical.

[0008] In a specific possible implementation mode, the template block includes an upper template and a lower template, the lower template is provided with a wood strip groove, the lower template is provided with a square wood strip for inserting into the wood strip groove, and the square wood strip is located between the lower template and the upper template.

[0009] By adopting the above technical solution, when pouring the beam, the upper formwork receives the concrete, and the lower formwork is connected to the U-shaped hanging rod to bear the load. When the concrete beam solidifies, its volume will expand. The upper formwork squeezes the square wooden strips, causing the square wooden strips to deform to adapt to the change in the volume of the beam, thereby effectively avoiding damage to the connection between the lower formwork and the U-shaped hanging rod.

[0010] In a specific feasible implementation scheme, the lower template is provided with a bottom plate for inserting the wooden strip groove, the square wooden strip is placed on the bottom plate, a disassembly rod is provided on the bottom plate, the disassembly rod passes through the bottom wall of the lower template, a fixing bolt is provided on the lower template, the fixing bolt passes through the lower template and is inserted into the upper template, the fixing bolt is rotatably arranged with the lower template, and the fixing bolt is threadedly connected with the upper template.

[0011] By adopting the above technical solution, when assembling the template blocks, the square wooden strips are first placed in the wooden strip grooves on the lower template, and then the upper template is placed on the square wooden strips. Finally, the upper template is connected to the lower template by fixing bolts, and the installation of the template blocks is completed, reducing the workload of high-altitude installation of the template blocks. After being squeezed, the square wooden strips will be stuck in the wooden strip grooves. At this time, by knocking the disassembly rod, the disassembly rod pushes the bottom plate to push the square wooden strips out of the wooden strip grooves, thereby improving the convenience of disassembling the square wooden strips.

[0012] In a specific possible implementation scheme, a threaded groove is provided on the bottom wall of the lower template, the disassembly rod is inserted into the threaded groove, an adjustment column is provided on the lower template, an adjustment groove is provided on the adjustment column for inserting the disassembly rod, the adjustment column is inserted into the threaded groove and is threadedly connected to the lower template.

[0013] By adopting the above technical solution, when the square wooden strips are installed, the square wooden strips are placed in the wooden strip grooves, the adjusting column is inserted into the threaded grooves, and the adjusting column is screwed. The adjusting column pushes the bottom plate up through the disassembly rod, thereby adjusting the height of the square wooden strips extending out of the wooden strip grooves, thereby improving the convenience of adjusting the height of the square wooden strips extending out of the wooden strip grooves.

[0014] In a specific possible implementation scheme, a rib plate is provided on the side template, and a connecting screw is provided on the rib plate, and the connecting screw passes through the rib plate and is threadedly connected to the upper template;

[0015] The support member includes a through screw rod arranged between the two side templates, the through screw rod passes through the two side templates, two groups of positioning nuts are sleeved on the through screw rod, each group of positioning nuts is evenly arranged on both sides of the side template, and the positioning nuts are in conflict with the side templates.

[0016] By adopting the above technical solution, when installing the opposite side formwork and the formwork block, first install the base plate and the formwork block by connecting screws, then place two sets of positioning nuts on both sides of the two side formworks respectively, then pass the through screws through the two sets of positioning nuts and the two side formworks in turn, and then tighten the two sets of positioning nuts against the side formworks, thereby fixing the opposite side formwork and improving the reliability of the installation between the two side formworks.

[0017] By adopting the above technical solution, each of the template blocks is provided with a plurality of ear plates, and the ear plates are evenly arranged on the upper template and the lower template. The ear plates on two adjacent template blocks are arranged opposite to each other, and the connecting bolts pass through the oppositely arranged ear plates, and the connecting bolts are threadedly connected with connecting nuts for abutting the ear plates.

[0018] By adopting the above technical solution, when connecting the template blocks, the connecting bolts are passed through the two ear plates, and then the connecting nuts are screwed to tighten the two ear plates, so that the template blocks are connected to form a bottom template, thereby improving the stability of the connection between the template blocks.

[0019] In a specific feasible implementation scheme, a bottom plate is provided at the end of the bottom template, and the bottom plate includes two casting plates, each of the two casting plates is provided with a telescopic groove, each of the two casting plates is provided with a telescopic plate for sliding in the telescopic groove, the telescopic plates correspond one to one with the telescopic grooves, and the casting plates are inserted with fastening bolts for contacting the telescopic plates, and the fastening bolts are threadedly connected to the casting plates.

[0020] By adopting the above technical solution, when the formwork blocks are installed, the length of the main steel beam is not always an integer multiple of the length of the formwork blocks. Therefore, the last formwork block is connected with the bottom plate, the telescopic plate is pulled out of the casting plate, and the length of the telescopic plate extending out of the casting plate is adjusted to adapt to the length of the main steel beam. Then, the fastening bolts are tightened to tighten the telescopic plate, which effectively avoids cutting of the formwork blocks, thereby improving the convenience of installing the bottom formwork.

[0021] In a specific feasible implementation scheme, a spring groove is provided on the casting plate, and the spring groove is arranged on the bottom wall of the telescopic groove. A support plate is hinged on the casting plate, and the support plate is located in the spring groove. A telescopic spring is provided on the casting plate for pushing the support plate to contact the wall of the telescopic groove.

[0022] By adopting the above technical solution, when the telescopic plate extends out of the casting plate, the telescopic spring pushes the support plate to rotate and contact with the wall of the telescopic groove, thereby improving the supporting strength of the casting plate.

[0023] In a specific feasible implementation scheme, a square wooden block is provided between the two casting plates, a through hole 1 is provided on the two casting plates for the U-shaped hanging rod to pass through, and the through holes on the two casting plates correspond one to one, and a through hole 2 is provided on the telescopic plate for the U-shaped hanging rod to pass through, and the through holes 2 on the two telescopic plates correspond one to one.

[0024] By adopting the above technical solution, the expansion of the beam during solidification is accommodated by the square wood blocks, the U-shaped hanging rod passes through the through hole and fixes the casting plate by the fixing nut, and the U-shaped hanging rod passes through the telescopic plate and is fixed by the fixing nut, thereby improving the stability of the installation of the bottom plate and the main steel beam.

[0025] On the other hand, the present application also provides a method for constructing a structural conversion layer type steel concrete beam formwork, comprising the following steps:

[0026] S1: Several formwork blocks are assembled on the ground, and then the main steel beam is hoisted to the designed position;

[0027] S2: erecting an artificial support around the main steel beam, and hanging a U-shaped hanging rod on the main steel beam;

[0028] S3: hoisting the template blocks in batches to the bottom of the main steel beam, passing the U-shaped hanging rod through the template blocks, screwing the fixing nuts on the U-shaped hanging rods, so that the template blocks are fixed under the main steel beam, and two adjacent template blocks are fixed by connecting bolts to form a bottom template;

[0029] S4: placing the steel bars on the bottom formwork and bundling them, then installing the side formwork on the bottom formwork, and then fixing the two side formworks by supporting members, and pouring concrete.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. When assembling the cast mold of the structural conversion layer steel concrete beam, the assembled template blocks are hoisted to the bottom of the main steel beam in turn, and then the U-shaped hanging rod is hung on the main steel beam, and the U-shaped hanging rod passes through the template block and is fixed by the fixing nut, and then the template blocks are connected to each other by connecting bolts to form a bottom template, and then the side template is installed on the bottom template, and the two side templates are connected by a support. Compared with the prior art, this scheme reduces the erection of the load-bearing bracket, thereby shortening the construction period of the structural conversion layer steel concrete beam and reducing the construction cost;

[0032] 2. When assembling the bottom formwork, the end of the bottom formwork is connected with the bottom plate. By adjusting the length of the telescopic plate extending out of the casting plate, the bottom formwork is adapted to the length of the main steel beam, effectively avoiding the cutting of the formwork block, thereby improving the convenience of the bottom formwork installation, and at the same time improving the supporting strength of the casting plate through the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a casting mold for a structural conversion layer type steel concrete beam in an embodiment of the present application.

[0034] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0035] Figure 3 is along Figure 1 Cross-sectional view along line BB.

[0036] Figure 4 is along Figure 1 Sectional view along the CC line.

[0037] Figure 5 It is an exploded view used to show square timber strips and timber strip grooves.

[0038] Figure 6 It is a schematic diagram used to show the structure of the base plate.

[0039] Figure 7 It is an exploded view of the square wood block and the positioning slot.

[0040] Figure 8 is along Figure 6 Sectional view along line DD.

[0041] Fig. 9 yes Figure 8 Enlarged view of middle part E.

[0042] Fig.10 It is a structural diagram used to show the spring slot.

[0043] Fig.11 yes Fig.10 Enlarged view of part F in the middle.

[0044] Description of reference numerals: 1. Main steel beam; 11. U-shaped hanging rod; 12. Fixing nut; 13. Ear plate; 14. Connecting bolt; 15. Connecting nut; 2. Bottom template; 21. Template block; 211. Upper template; 212. Lower template; 221. Wood strip groove; 222. Square wood strip; 223. Fixing bolt; 224. Bottom plate; 225. Disassembly rod; 226. Threaded groove; 227. Adjusting column; 228. Adjusting groove; 3. Side template; 31. Rib plate; 3 2. Rib plate; 33. Connecting screws; 4. Support member; 41. Through screw; 42. Positioning nut; 5. Bottom plate; 51. Casting plate; 521. Telescopic groove; 522. Telescopic plate; 53. Pull rod; 54. Fastening bolt; 551. Positioning groove; 552. Square wood block; 561. Spring groove; 562. Telescopic spring; 563. Sliding rod; 564. Support plate; 565. Connecting plate; 566. Extruded arc surface; 571. Through hole one; 572. Through hole two. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-11 This application is described in further detail.

[0046] The embodiment of the present application discloses a casting mold for a structural conversion layer type steel concrete beam.

[0047] Reference Figure 1 , Figure 2 and Figure 3A structural conversion layer steel concrete beam casting mold includes a main steel beam 1 hoisted to a designed position, the main steel beam 1 is an I-beam, the main steel beam 1 spans between two supporting columns, a plurality of U-shaped hanging rods 11 are hung on the main steel beam 1, the opening of each U-shaped hanging rod 11 is downward, and the plurality of U-shaped hanging rods 11 are arranged along the length direction of the main steel beam 1, a plurality of template blocks 21 are arranged below the main steel beam 1, each template block 21 corresponds to two U-shaped hanging rods 11, each template block 21 includes an upper template 211 and a lower template 212, each U-shaped hanging rod 11 passes through the upper template 211 and the lower template 212 in sequence, and the U-shaped hanging rod 11 passes through the lower template 212. One end of the plate is provided with a fixing nut 12, and the fixing nut 12 is threadedly connected to the U-shaped hanging rod 11, and each upper template 211 and the lower template 212 are connected. Two groups of ear plates 13 are provided on each of the upper templates 211. Taking the upper template 211 as an example, the two groups of ear plates 13 are evenly arranged on both sides of the upper template 211. The number of ear plates 13 in each group is two, and the two ear plates 13 in the same group are evenly arranged at both ends of the upper template 211. The ear plates 13 on the two adjacent upper templates 211 are arranged opposite to each other. The arrangement of the ear plates 13 on the lower template 212 is consistent with the upper template 211. Connecting bolts 14 are provided on the ear plates 13. The connecting bolts 14 pass through the two ear plates 13 in turn. Connecting nuts 15 are threadedly connected to the connecting bolts 14. The connecting nuts 15 are tightly pressed against the ear plates 13. Several template blocks 21 are interconnected to form a bottom template 2. Two side templates 3 are provided on the bottom template 2. The side templates 3 are located on both sides of the bottom template 2. A support 4 is provided between the two side templates 3.

[0048] When installing the casting mold of the structural conversion layer steel concrete beam, first hoist the main steel beam 1 to the designed position, then set up a number of U-shaped hanging rods 11 on the main steel beam 1, then hoist the template block 21 to the bottom of the main steel beam 1, then the U-shaped hanging rod 11 passes through the upper template 211 and the lower template 212 in turn, then screw the fixing nut 12 onto the U-shaped hanging rod 11, adjust the height of the upper template 211 and the lower template 212 by rotating the fixing nut 12, then hoist the remaining template blocks 21 to the bottom of the main steel beam 1 and connect them to the main steel beam 1. The U-shaped hanging rod 11 is connected, and then the template blocks 21 are connected to each other through the connecting bolts 14 to form the bottom template 2, and then the side templates 3 are installed on the bottom template 2, and the two side templates 3 are supported by the support members 4. When supporting the casting mold, this solution does not need to build a load-bearing bracket, thereby shortening the construction period of the structural transition layer type steel concrete beam, reducing the construction investment of the structural transition layer type steel concrete beam, and being more economical; the bottom template 2 is composed of the template blocks 21, which improves the convenience of the bottom template 2 during lifting and disassembly.

[0049] Reference Figure 2A rib plate 31 is welded at the bottom of each side formwork 3, a plurality of rib plates 32 are arranged on the rib plate 31, the rib plates 32 are welded to the side formwork 3, a connecting screw 33 is arranged on the rib plate 31, the connecting screw 33 passes through the rib plate 31 and is inserted into the upper formwork 211, and the connecting screw 33 is threadedly connected to the upper formwork 211; the connecting screw 33 passes through the rib plate 31 and is threadedly connected to the upper formwork 211, so that the side formwork 3 is fixed to the bottom formwork 2, thereby improving the stability of the connection between the side formwork 3 and the bottom formwork 2.

[0050] Reference Figure 3 , Figure 4 and Figure 5 , two wood strip grooves 221 are provided on the opposite sides of the lower template 212 and the upper template 211, each wood strip groove 221 is arranged along the length direction of the bottom template 2, and a square wood strip 222 is provided on the lower template 212, one end of the square wood strip 222 is inserted into the wood strip groove 221 on the lower template 212, and the other end of the square wood strip 222 is inserted into the wood strip groove 221 on the upper template 211, and each square wood strip 222 corresponds to two wood strip grooves 221, and each lower template 212 is provided with two fixing bolts 223, and the two fixing bolts 223 are arranged along the length direction of the bottom template 2, and the two fixing bolts 223 are located between the two wood strip grooves 221, and each fixing bolt 223 passes through the lower template 212 and is inserted into the upper template 211, and the fixing bolt 223 is rotatably arranged with the lower template 212, and the fixing bolt 22 3 is threadedly connected with the upper template 211, a bottom plate 224 is provided on the lower template 212, the bottom plate 224 is arranged on the bottom wall of the wood strip groove 221, the bottom plate 224 corresponds to the wood strip groove 221 on the lower template 212, a disassembly rod 225 is fixedly provided on each bottom plate 224, a threaded groove 226 is provided on the bottom wall of the lower template 212, the threaded groove 226 corresponds to the disassembly rod 225, the disassembly rod 225 passes through the lower template 212 and extends into the threaded groove 226, an adjusting column 227 for inserting into the threaded groove 226 is provided on the lower template 212, the adjusting column 227 corresponds to the threaded groove 226, the adjusting column 227 is threadedly connected with the lower template 212, an adjusting groove 228 is provided on the adjusting column 227 for the disassembly rod 225 to be inserted, and the disassembly rod 225 conflicts with the bottom wall of the adjusting groove 228.

[0051] When assembling the template block 21, first place the bottom plate 224 on the bottom wall of the wood strip groove 221, and extend the disassembly rod 225 into the threaded groove 226, then place the square wood strip 222 in the wood strip groove 221 on the lower template 212, and then place the upper template 211 on the square wood strip 222, so that the square wood strip 222 is inserted into the wood strip groove 221 of the upper template 211, and then pass the fixing bolt 223 through the lower template 212 and insert it into the upper template 211, and then tighten the fixing bolt 223, so that the upper template 211, the lower template 212 and the square wood strip 222 are tightly pressed, thereby completing the assembly of the template block 21. When the structural transition layer type steel concrete beam is poured and solidified, the beam will expand, so the beam squeezes the upper template 211, so that the square wood strip 222 is deformed to cope with the expansion of the beam, thereby effectively avoiding the damage caused by the expansion of the beam to the connection between the template block 21 and the U-shaped hanging rod 11.

[0052] When the upper template 211 is squeezed by the beam, the upper template 211 pushes the fixing bolt 223 to slide along the lower template 212, thereby effectively preventing the connection between the fixing bolt 223 and the lower template 212 from being squeezed and damaged; when the square wood strip 222 is squeezed and deformed, the square wood strip 222 will be stuck in the wood strip groove 221, making it extremely difficult to replace the subsequent other wood strip 222. By knocking the disassembly rod 225, the disassembly rod 225 moves the square wood strip 222 out of the wood strip groove 221 through the bottom plate 224, thereby The convenience of disassembling the square wooden strips 222 is improved; when the square wooden strips 222 are inserted into the wooden strip grooves 221, errors will occur in the production of the wooden strip grooves 221. By actively adjusting the column 227, the adjusting column 227 pushes the disassembly rod 225 to move, and the disassembly rod 225 adjusts the length of the square wooden strips 222 extending out of the wooden strip grooves 221 through the bottom plate 224, so that the top walls of the two square wooden strips 222 are at the same height, so that the two square wooden strips 222 both support the upper template 211, thereby improving the uniformity of the force on the square wooden strips 222.

[0053] Reference Figure 3 The support member 4 in this embodiment includes a plurality of through screws 41, and the plurality of through screws 41 are arranged along the length direction of the side formwork 3, each through screw 41 passes through the two side formworks 3 in sequence, and each through screw 41 is sleeved with two groups of positioning nuts 42, and the number of each group of positioning nuts 42 is two, and each positioning nut 42 is threadedly connected to the through screw 41, and each side formwork 3 is located between the two positioning nuts 42 of the same group; when the side formwork 3 and the bottom formwork 2 are installed, a positioning nut 42 will be installed to one end of the through screw 41 first, and then the through screw 41 will be inserted and the remaining positioning nuts 42 will be installed, and then the positioning nut 42 will be rotated so that the two positioning nuts 42 of the same group will press the side formwork 3 tightly, thereby realizing the fixation between the two side formworks 3, thereby improving the stability of the side formwork 3 during pouring.

[0054] Reference Figure 6, Figure 7 and Figure 8 The bottom template 2 is provided with a bottom plate 5, which is located at the end of the bottom template 2. The bottom plate 5 is connected to the adjacent template block 21 by means of an ear plate 13 and a connecting bolt 14. The bottom plate 5 includes two casting plates 51, and the two casting plates 51 are provided with a telescopic groove 521. Each casting plate 51 is provided with a telescopic plate 522 for sliding in the telescopic groove 521, and each telescopic plate 522 is provided with a pull rod 53. Each casting plate 51 is threadedly connected with a fastening bolt. 54, the fastening bolt 54 is inserted into the telescopic groove 521 and pressed against the telescopic plate 522, two groups of positioning grooves 551 are provided on the opposite side walls of the two casting plates 51, and the number of each group of positioning grooves 551 is two, and each positioning groove 551 is connected to the telescopic groove 521. Two square wooden blocks 552 are provided between the two casting plates 51, and both ends of each square wooden block 552 are inserted into the oppositely arranged positioning grooves 551, and both ends of each square wooden block 552 are in contact with the telescopic plate 522 on the same side.

[0055] Reference Fig. 9 , Fig.10 and Fig.11 A spring groove 561 is provided on the bottom wall of the telescopic groove 521, and three telescopic springs 562 are provided in the spring groove 561. The three telescopic springs 562 are arranged along the width direction of the spring groove 561. One end of the telescopic spring 562 is fixedly connected to the groove wall of the spring groove 561, and a slide bar 563 is fixedly provided at the other end of the telescopic spring 562. The slide bar 563 slides along the spring groove 561. The spring groove 561 is hinged with a support plate 564 at one end away from the telescopic spring 562. A connecting plate 565 is hinged on the slide bar 563. The connecting plate 565 is hinged to the support plate 564 at one end away from the slide bar 563. The depth of the spring groove 561 is greater than the connecting plate 564. The sum of the widths of the connecting plate 565 and the support plate 564, the support plate 564 is provided with an extruded arc surface 566, the extruded arc surface 566 conflicts with the upper side wall of the telescopic groove 521, the two casting plates 51 are provided with a through hole 571 for the U-shaped hanging rod 11 to pass through, the through holes 571 on the two casting plates 51 correspond one to one, the telescopic plate 522 is provided with a through hole 572 for the U-shaped hanging rod 11 to pass through, the through holes 572 on the two telescopic plates 522 correspond one to one, according to the different positions of the through hole 571 on the casting plate 51, the bottom plate 5 is made into different specifications to adapt to the different lengths of the casting plate 51 extended by the telescopic plate 522.

[0056] When installing the bottom formwork 2, the length of the main steel beam 1 is usually not an integer multiple of the formwork block 21, so the bottom plate 5 is used to install the end of the bottom formwork 2. First, measure the remaining length after the last formwork block 21, and then the operator pulls the telescopic plate 522 out of the telescopic groove 521 through the pull rod 53, so that the sum of the lengths of the casting plate 51 and the telescopic plate 522 is equal to the remaining length after the last formwork block 21, and then install the square wood block 552 of the same length between the two casting plates 51, and then simply fix the two casting plates 51 and the square wood block 552 and hoist them to the main steel beam. Below the beam 1, the U-shaped hanging rod 11 is then passed through the through hole 1 571 and the through hole 2 572 in sequence, and then the bottom plate 5 is fixed by the fixing nut 12, thereby completing the installation of the bottom formwork 2, effectively avoiding the cutting of the formwork block 21, reducing the waste of building materials, and improving the convenience of installing the bottom formwork 2; when the telescopic plate 522 extends out of the telescopic groove 521, the sliding rod 563 is pushed to slide by the telescopic spring 562, and the sliding rod 563 pushes the supporting plate 564 to rotate out of the spring groove 561 through the connecting plate 565, and contacts with the upper side wall of the telescopic groove 521, thereby improving the supporting strength of the casting plate.

[0057] The implementation principle of a casting mold for a structural transition layer type steel concrete beam in an embodiment of the present application is as follows: when installing the casting mold, first hoist the main steel beam 1 to the designed position, and place the U-shaped hanging rod 11 on the main steel beam 1, and then hoist the template blocks 21 to the bottom of the main steel beam 1 in sequence after assembly, and then pass the U-shaped hanging rod 11 through the template block 21, and screw on the fixing nut 12, so that the template block 21 is fixed to the bottom of the main steel beam 1, and the same method is continuously adopted to hoist the template blocks 21 in sequence, and then the template blocks 21 are fixed in sequence by connecting bolts 14 to form a bottom template 2, and then the side template 3 is installed on the bottom template 2, and the side template 3 is fixed by the support 4, thereby completing the installation of the casting mold. Compared with the prior art, this scheme reduces the time for building the load-bearing support, thereby shortening the construction period of the structural transition layer type steel concrete beam, and also reducing construction investment, which is more economical.

[0058] The present application also discloses a method for constructing a structural conversion layer type steel concrete beam formwork, comprising the following steps:

[0059] S1: Several template blocks 21 are assembled on the ground, and then the main steel beam 1 is hoisted to the designed position;

[0060] S2: erecting an artificial support around the main steel beam 1, and hanging a U-shaped hanging rod 11 on the main steel beam 1;

[0061] S3: hoist the template blocks 21 to the bottom of the main steel beam 1 in batches, and pass the U-shaped hanging rod 11 through the template blocks 21, screw the fixing nuts 12 on the U-shaped hanging rod 11, so that the template blocks 21 are fixed under the main steel beam 1, and two adjacent template blocks 21 are fixed by connecting bolts 14;

[0062] S4: placing the steel bars on the template block 21 and tying them, then installing the side templates 3 on the template block 21, and then fixing the two side templates 3 by the support members 4, and pouring concrete.

[0063] In step S1, the formwork block 21 is assembled on the ground, and the main steel beam 1 is hoisted by a large crane. In step S2, the artificial support is located below the main steel beam 1. The distance between the top wall of the artificial support and the main steel beam 1 is 1m. The length of the artificial support extending outward from the main steel beam 1 is 70cm, and handrails are provided on both sides to ensure the safety of the operator. When the height of the artificial support exceeds two meters, the operator needs to wear a safety belt to operate.

[0064] In step S3, a template block 21 is first hoisted to one end of the main steel beam 1 by a crane and fixed by a U-shaped hanging rod 11. Then, the height of the template block 21 is adjusted by rotating the fixing nut 12, and then the next template block 21 is hoisted. After the installation is completed, the two template blocks 21 are connected by connecting bolts 14, and the installation of the remaining template blocks 21 is completed in this way. The end is installed using the base plate 5.

[0065] In step S4, first place the steel bars on the bottom formwork 2 and bundle them. The iron wire used for bundling should be tied into an eight-shaped shape. The steel bars should deviate from the insertion position of the through screw 41 to ensure that the through screw 41 passes through the steel bars smoothly. The distance between the steel bars and the boundary of the structural transition layer steel concrete beam is 40 mm, and the spacing between the bottom steel bars and the bottom formwork 2 is 30 mm. When installing the side formwork 3, it is connected with connecting screws 33, and anti-slip pads are added on the connecting screws 33. The support 4 is a through screw 41. When screwing the positioning nut 42, the positioning nut 42 on the outside of the side formwork 3 should be screwed first, and then the positioning nut 42 on the inside should be screwed.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A structural transfer layer type steel concrete beam casting mold, Features: The invention comprises a main steel beam (1) arranged at a designed position, wherein a bottom template (2) is provided on the main steel beam (1), wherein the bottom template (2) is formed by a plurality of template blocks (21) connected to each other, wherein two adjacent template blocks (21) are connected via connecting bolts (14), wherein the bottom template (2) and the main steel beam (1) are connected via a U-shaped hanging rod (11), wherein the U-shaped hanging rod (11) passes through the bottom template (2), wherein one end of the U-shaped hanging rod (11) passing through the bottom template (2) is threadedly connected with a fixing nut (12), wherein side templates (3) are provided on both sides of the bottom template (2), and a support member (4) is provided between the two side templates (3); A bottom plate (5) is provided on the bottom template (2), and the bottom plate (5) comprises two casting plates (51), and the two casting plates (51) are both provided with telescopic grooves (521), and the two casting plates (51) are both provided with telescopic plates (522) for sliding in the telescopic grooves (521), and the telescopic plates (522) correspond to the telescopic grooves (521) one by one, and the casting plates (51) are plugged with fastening bolts (54) for contacting the telescopic plates (522), and the fastening bolts (54) are threadedly connected to the casting plates (51); The casting plate (51) is provided with a spring groove (561), and the spring groove (561) is arranged on the bottom wall of the telescopic groove (521). The casting plate (51) is hinged with a support plate (564), and the support plate (564) is located in the spring groove (561). The casting plate (51) is provided with a telescopic spring (562) for pushing the support plate (564) to contact the wall of the telescopic groove (521).

2. The structural conversion layer type steel concrete beam casting mold according to claim 1, Features: The template block (21) comprises an upper template (211) and a lower template (212); a wood strip groove (221) is provided on the lower template (212); a square wood strip (222) for inserting into the wood strip groove (221) is provided on the lower template (212); and the square wood strip (222) is located between the lower template (212) and the upper template (211).

3. The structural conversion layer type steel concrete beam casting mold according to claim 2, Features: The lower template (212) is provided with a bottom plate (224) for inserting the wood strip groove (221), the square wood strip (222) is placed on the bottom plate (224), the bottom plate (224) is provided with a disassembly rod (225), the disassembly rod (225) penetrates the bottom wall of the lower template (212), the lower template (212) is provided with a fixing bolt (223), the fixing bolt (223) passes through the lower template (212) and is inserted into the upper template (211), the fixing bolt (223) is rotatably arranged with the lower template (212), and the fixing bolt (223) is threadedly connected with the upper template (211).

4. The structural conversion layer type steel concrete beam casting mold according to claim 3, Features: A threaded groove (226) is provided on the bottom wall of the lower template (212), the disassembly rod (225) is inserted into the threaded groove (226), an adjustment column (227) is provided on the lower template (212), an adjustment groove (228) is provided on the adjustment column (227) for the disassembly rod (225) to be inserted, and the adjustment column (227) is inserted into the threaded groove (226) and is threadedly connected to the lower template (212).

5. The structural conversion layer type steel concrete beam casting mold according to claim 2, Features: The side template (3) is provided with a rib plate (31), the rib plate (31) is provided with a connecting screw (33), the connecting screw (33) passes through the rib plate (31) and is threadedly connected to the upper template (211); The support member (4) comprises a through screw (41) arranged between the two side templates (3), the through screw (41) passing through the two side templates (3), two groups of positioning nuts (42) are sleeved on the through screw (41), each group of positioning nuts (42) is evenly arranged on both sides of the side template (3), and the positioning nuts (42) are in contact with the side template (3).

6. The structural conversion layer type steel concrete beam casting mold according to claim 2, Features: Each template block (21) is provided with a plurality of ear plates (13), and the ear plates (13) are evenly arranged on the upper template (211) and the lower template (212). The ear plates (13) on two adjacent template blocks (21) are arranged opposite to each other, and the connecting bolts (14) pass through the oppositely arranged ear plates (13). The connecting bolts (14) are threadedly connected with connecting nuts (15) for contacting the ear plates (13).

7. The structural conversion layer type steel concrete beam casting mold according to claim 1, Features: A square wood block (552) is provided between the two casting plates (51), a through hole (571) is provided on the two casting plates (51) for the U-shaped hanging rod (11) to pass through, and the through holes (571) on the two casting plates (51) correspond one to one, and a through hole (572) is provided on the telescopic plate (522) for the U-shaped hanging rod (11) to pass through, and the through holes (572) on the two telescopic plates (522) correspond one to one.

8. A method for constructing a structural transition layer type steel concrete beam hanging formwork, comprising the structural transition layer type steel concrete beam casting formwork according to any one of claims 1 to 7, Features: The following steps are involved: S1: A number of formwork blocks (21) are assembled on the ground, and then the main steel beam (1) is hoisted to the designed position; S2: erecting an artificial support around the main steel beam (1), and hanging a U-shaped hanging rod (11) on the main steel beam (1); S3: hoisting the template blocks (21) in batches to the bottom of the main steel beam (1), passing the U-shaped hanging rod (11) through the template blocks (21), screwing the fixing nuts (12) on the U-shaped hanging rod (11), so that the template blocks (21) are fixed under the main steel beam (1), and two adjacent template blocks (21) are fixed by connecting bolts (14); S4: placing the steel bars on the template block (21) and tying them, then installing the side template (3) on the template block (21), then fixing the two side templates (3) by means of a support member (4), and pouring concrete.

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