Adjustable non-opposite-pulling type U-shaped aqueduct body prefabricating construction formwork and method

Abstract

The invention relates to the technical field of U-shaped aqueduct prefabricating construction, in particular to an adjustable non-opposite-pulling type U-shaped aqueduct body prefabricating construction formwork and method, which comprises an outer side formwork arranged on the outer side of an aqueduct body, an inner side formwork arranged on the inner side of the aqueduct body, a bottom formwork arranged at the bottom of the aqueduct body and an aqueduct top combined pull rod formwork arranged at the top of the aqueduct body, the combined trusses are arranged on the two sides and the top; the outer side formworks are fixedly connected with the trusses, the tops of the trusses on the two sides are fixedly connected through truss combination connecting rods, and the bottoms of the trusses are oppositely pulled and fixedly connected through groove bottom pull rods. The inner side formwork is connected with the truss combination connecting rods through the adjustable supporting rods to be fixed; the adjustable device refers to a vertical insertion depth adjustable bell and spigot which is arranged on the truss; the splicing rib plates between the templates are fixedly connected through gong bolts; groove body concrete is integrally poured and constructed at a time, so that horizontal construction joints and split bolt holes for reinforcing inner and outer side molds are avoided; the insertion depth of the vertical adjustable bell and spigot can be adjusted, inner and outer formworks can be increased or decreased, the device is suitable for construction of aqueducts with the same semicircle inner diameter and different straight section heights, the formwork application range is widened, cost is saved, and the construction quality and working efficiency of the U-shaped aqueduct are improved.

Description

Technical Field

[0001] The invention relates to an adjustable non-pull type U-shaped aqueduct body prefabrication construction template and method, which is suitable for the concrete prefabrication construction of the U-shaped aqueduct body. Background Art

[0002] Aqueducts are divided into rectangular aqueducts and U-shaped aqueducts according to their cross-sectional shapes.

[0003] Aqueduct construction generally adopts construction methods such as on-site casting, on-site prefabrication, or centralized prefabrication. Traditional casting methods use a large number of tension bolts to fix the internal and external formwork. The tension bolt holes are difficult to handle and can easily form leakage channels, which is a quality defect that is difficult to overcome. The U-shaped aqueduct formwork is a special-shaped formwork that requires special processing and customization. It generally adopts a fixed size design, with one specification corresponding to one formwork. There is no size adjustment device. Different templates need to be customized for different specifications and sizes, and the formwork cost is high. Traditional casting methods also have problems such as backward construction technology, slow construction progress, and poor molding quality. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide an adjustable non-tensioned U-shaped aqueduct body prefabricated construction template and method, which is suitable for the one-time integral pouring of the U-shaped aqueduct body concrete, avoiding the occurrence of horizontal construction joints and tension bolt holes for reinforcing the inner and outer molds. At the same time, the straight section of the template can be increased or decreased, and the height can be adjusted to adapt to aqueducts with the same semicircular inner diameter but different straight section heights, thereby saving costs and improving the construction quality and work efficiency of the U-shaped aqueduct.

[0005] In order to realize the above-mentioned technical features, the purpose of the present invention is realized as follows: an adjustable non-pull type U-shaped aqueduct trough body prefabricated construction template and method, which includes an outer template arranged on the outside of the trough body, an inner template arranged on the inside of the trough body, a bottom template arranged at the bottom of the trough body, a trough top combined tie rod template arranged at the top of the trough body, and trusses arranged on both sides and the top; the outer template is connected to the truss, the tops of the trusses on both sides are fixedly connected by truss combined connecting rods, and the bottoms of the trusses are fixedly connected by trough bottom tie rods; the inner template is fixed by connecting the truss combined connecting rods through adjustable support rods; the trough top combined tie rod template is fixedly connected to the upper inner template by bolts; the adjustable device refers to a vertically adjustable socket arranged on the truss. The splicing ribs between all formworks are fixedly connected by bolts; the trough body concrete is poured in one piece to avoid horizontal construction joints and tension bolt holes for reinforcing the inner and outer formworks; the vertically adjustable socket can adjust the insertion depth, and the inner and outer formworks can be increased or decreased accordingly. It is suitable for the construction of semi-circular aqueducts with the same inner diameter and different straight section heights, which increases the adaptability of the formwork, saves costs, and improves the construction quality and work efficiency of U-shaped aqueducts.

[0006] The outer template is composed of multiple steel templates with different external dimensions, including an upper outer template, a lower outer template and an adjustable outer template.

[0007] The inner template includes an upper inner template, a lower inner template, an adjustable inner template and inner ribs for supporting the template, and the inner ribs have multiple ear plates.

[0008] The bottom mold is composed of multiple steel molds with different external dimensions, including a middle bottom mold and an end bottom mold; the bottom mold is placed on the base.

[0009] The trough top combined tie rod formwork is composed of multiple steel formworks of different external dimensions, including a tie rod bottom formwork and a tie rod side formwork. Adjacent tie rod formworks are connected by bolts, and the combined tie rod formwork is fixedly connected to the upper inner formwork by bolts.

[0010] The truss includes an upper truss, a lower truss, a truss combination connecting rod and a vertically adjustable socket; the tops of the upper trusses on both sides are fixedly connected by the truss combination connecting rod, and the bottoms are fixedly connected by the groove bottom pull rod, and the upper truss and the lower truss are connected by the vertically adjustable socket.

[0011] The adjustable support rod includes an adjustable vertical support rod, an adjustable horizontal support rod, and an adjustable diagonal support rod. A single adjustable support rod is composed of a seamless steel pipe, a screw rod, and an ear plate. The two ends of the seamless steel pipe are installed with screw rods through threaded cooperation. One end of the screw rod is connected to the ear plate of the inner template through the ear plate, and the other end of the screw rod is connected to the ear of the truss combination connecting rod through the ear plate. A rotating hole for rotating it is provided in the middle part of the seamless steel pipe, and the internal threads at both ends of the seamless steel pipe rotate in opposite directions.

[0012] The bottom tie rod of the trough adopts a tension screw rod to pass through the lower truss, and is fixed by nuts at both ends of the tension screw rod.

[0013] The base comprises a concrete pedestal supporting the bottom formwork and adjustable supports at the ends.

[0014] The adjustable non-pull U-shaped aqueduct body prefabrication template and method are characterized by comprising the following steps: Step 1: According to the size of the trough body, make the inner template, outer template, bottom template and trough top combined tie rod template, truss, inner template support rod, and trough bottom tie rod respectively; Step 2: Build the base, support the bottom formwork on the base, and then tie the steel frame of the trough body according to the size of the trough body; Step 3: Install the outer formwork, inner formwork and trough top combined tie rod formwork respectively; Step 4: Connect the tops of the upper trusses on both sides with the truss assembly connecting rods, and the bottoms of the lower trusses with the bottom tie rods. Connect the upper and lower trusses with vertically adjustable sockets. Connect the inner formwork to the truss assembly connecting rods with adjustable support rods, and secure the formworks with nuts. Step 5: Use end templates to seal both ends of the casting section and fix them with nuts; Step 6: Pour the trough body in layers. Pour the bottom plate first, and then pour the arc sections, straight wall sections and top beams on both sides after the pouring is completed, so as to realize the one-time integral pouring of the trough body.

[0015] The present invention has the following beneficial effects: by adopting the above-mentioned structure, the concrete of the U-shaped aqueduct body can be poured in one piece at a time, effectively solving the problem of quality defects easily occurring in horizontal construction joints, tie rod holes and other parts in traditional layered casting and forming construction. This construction process is relatively simple, reduces construction joint treatment, secondary formwork pouring and other construction steps, and can improve construction quality and work efficiency. At the same time, the straight section of the template can be increased or decreased by adjusting the socket depth, and the height can be adjusted to adapt to the construction of U-shaped aqueducts with the same semicircular inner diameter and different straight section heights. The template can be reused, saving template costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] Figure 1 It is a longitudinal end view of the present invention.

[0018] Figure 2 Figure 1 of the present invention Figure 1 Middle BB view.

[0019] Figure 3 For the present invention Figure 1 Middle II view.

[0020] Figure 4 For the present invention Figure 1 Middle II-II view.

[0021] In the figure: inner formwork 1, outer formwork 2, bottom formwork 3, trough top combined tie rod formwork 4, truss 5, adjustable support rod 6, trough bottom tie rod 7, base 8, trough body 9; upper inner formwork 11, lower inner formwork 12, adjustable inner formwork 13, upper outer formwork 21, lower outer formwork 22, adjustable outer formwork 23, Middle bottom formwork 31, end bottom formwork 32; tie rod bottom formwork 41, tie rod side formwork 42, upper truss 51, lower truss 52, truss assembly connecting rod 53, upper and lower truss connecting socket 54, adjustable vertical support rod 61, adjustable horizontal support rod 62, adjustable diagonal support rod 63, middle fixed base 81, end adjustable support 82; DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1-4 An adjustable non-pull-type U-shaped aqueduct body prefabricated construction template and method, comprising an inner template 1 arranged on the inner side of the aqueduct body, an outer template 2 arranged on the outer side of the aqueduct body, a bottom template 3 arranged at the bottom of the aqueduct body, a top combined tie rod template 4 arranged at the top of the aqueduct body, and trusses 5 arranged on both sides and the top; the outer template 2 is connected to the trusses 5; the inner template 1 is connected to an adjustable support rod 6, the other end of which is connected to the truss 5; the top combined tie rod template 4 is fixedly connected to the inner template 1 by bolts; the adjustable finger device refers to a vertically adjustable socket 54 on the truss. The fixed limit between the templates is fixedly connected by the truss 5 arranged on the outside, the bottom tie rod 7, and the inner template adjustable support rod 6, and no pull-holes are formed on the aqueduct body.

[0024] Furthermore, the inner template 1 includes an upper inner mold 11, a lower inner mold 12, and an adjustable inner mold 13. Multiple lugs are provided on the inner ribs of the inner template for fixed connection with the adjustable support rods 6.

[0025] Furthermore, the outer formwork 2 includes an upper outer formwork 21, a lower outer formwork 22, and an adjustable outer formwork 23. The upper outer formwork 21 is fixedly connected to the upper truss 51, and the lower outer formwork 22 is fixedly connected to the lower truss 52. The upper trusses 51 and lower trusses 52 are connected and fixed via upper and lower truss connection sockets 54. The upper trusses 51 on both sides are connected and fixed via truss combination connecting rods 53, and the lower trusses 52 on both sides are connected and fixed via groove bottom tie rods 7, thereby completing the outer formwork fixation.

[0026] Furthermore, the bottom mold 3 is composed of multiple steel molds of different dimensions, including a middle bottom mold 31 and an end bottom mold 32. The combined bottom mold 3 can adapt to the shape of the bottom of the tank body, and the bottom mold 3 is placed on the base 8.

[0027] Furthermore, the trough top composite tie rod formwork 4 is constructed of multiple steel formworks of different dimensions, including a tie rod bottom formwork 41 and a tie rod side formwork 42. Two adjacent tie rod formworks are bolted together to form a tie rod formwork. The tie rod formwork 4 is bolted to the inner formwork 1. The trough top composite tie rod formwork 4 can be used to cast the tie beam 9002.

[0028] Furthermore, the truss 5 includes an upper truss 51, a lower truss 52, a truss assembly connecting rod 53, and upper and lower truss connecting sockets 54, and the insertion depth of the upper and lower truss connecting sockets is adjustable.

[0029] Furthermore, the inner mold support rod 6 includes an adjustable vertical support rod 61, an adjustable horizontal support rod 62, and an adjustable diagonal support rod 63; one end of the inner mold support rod 6 is connected to the inner mold 1, and the other end is connected to the truss combination connecting rod 53. The length of the support rod can be adjusted through the screw rods at both ends.

[0030] Furthermore, the bottom tie rod 7 includes a tie screw 71 and a nut 72. The tie screw 71 passes through both the base 8 and the lower truss 52 and is fixed at both ends of the tie screw 71. By arranging the truss 5 and the bottom tie rod 7 outside the trough body, the formation of screw holes after pouring is effectively avoided, effectively solving the problem of quality defects in horizontal construction joints, tie rod holes and other parts in traditional layered multi-casting methods.

[0031] Furthermore, the upper truss 51, the lower truss 52, and the truss combination connecting rod 53 are made of two 12# channel steels, wherein the outer vertical support of the lower truss 52 is made of two 18# channel steels, and the diameter of the channel bottom pull rod 7 is 25 mm.

[0032] Furthermore, the bottom mold 3 is composed of multiple steel molds, which are connected into an integral bottom mold system by bolts, and are connected to the outer mold 2 by bolts to reinforce the bottom of the mold.

[0033] Furthermore, the inner mold support rod 6 is made of a Φ95mm seamless steel tube, with M65*350mm screws at both ends. The ends of the screws are connected to lugs with bolt holes. A circular hole is drilled in the middle of the seamless steel tube to form a Φ34mm rotary hole. Rebar is inserted into the rotary hole to adjust the length of the inner mold support rod 6, thereby supporting and reinforcing the inner mold.

[0034] The method for casting the aqueduct body using the integral casting construction template of the rectangular aqueduct body without tension bolts is characterized by It includes the following steps: Step 1: According to the size of the trough body, respectively make the inner template 1, outer template 2, bottom template 3 and trough top combined tie rod template 4, truss 5, inner template support rod 6, trough bottom tie rod 7; Step 2: Set up the base 8, support the bottom form 3 on the base 8, and then tie the steel frame of the trough body according to the size of the trough body; Step 3: Install the outer formwork 2, inner formwork 1 and trough top combined tie rod formwork 4 respectively; Step 4: Connect the tops of the upper trusses 51 on both sides with the truss assembly connecting rods 53, and connect the bottoms of the lower trusses 52 with the pull rods 7. Connect the upper trusses 51 and the lower trusses 51 with the vertically adjustable sockets 54. Connect the inner formwork 1 to the truss assembly connecting rods 53 with the adjustable support rods 6, and fix the formworks with nuts. Step 5: Use end templates to seal both ends of the casting section and fix them with nuts; Step 6: Cast the trough body. During the casting process, cast in layers. Cast the bottom plate first. After the casting is completed, cast the arc sections, straight wall sections and top beams on both sides, thereby realizing the one-time integral casting of the trough body 9001.

Claims

1. An adjustable non-pull U-shaped aqueduct body prefabrication construction template and method, characterized by: It comprises an inner template (1) arranged on the inner side of the trough body, an outer template (2) arranged on the outer side of the trough body, a bottom template (3) arranged at the bottom of the trough body, a trough top combined tie rod template (4) arranged at the top of the trough body, and trusses (5) arranged on both sides and the top; the outer template (2) is connected to the truss (5); the inner template (1) is connected to the truss (5) through an adjustable support rod (6); the trough top combined tie rod template (4) is fixedly connected to the inner template (1) through bolts; the adjustable finger device refers to a vertically adjustable insertion depth socket (54) on the truss.

2. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The inner template (1) comprises an upper inner mold (11), a lower inner mold (12), and an adjustable inner mold (13). Multiple ear plates are provided on the inner ribs of the inner template for fixed connection with the adjustable support rod (6).

3. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The outer template (2) includes an upper outer template (21), a lower outer template (22), and an adjustable outer template (23). The upper outer template (21) is fixedly connected to the upper truss (51), and the lower outer template (22) is fixedly connected to the lower truss (52). The upper truss (51) and the lower truss (52) are connected and fixed via upper and lower truss connection sockets (54). The upper trusses (51) on both sides are connected and fixed via truss combination connecting rods (53), and the lower trusses (52) on both sides are connected and fixed via groove bottom pull rods (7), thereby completing the outer template fixation.

4. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The bottom mold (3) is composed of a plurality of steel molds of different external dimensions, including a middle bottom mold (31) and an end bottom mold (32). The bottom mold (3) is placed on a base (8).

5. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The trough top combined tie rod formwork (4) is composed of multiple steel formworks of different external dimensions, including a tie rod bottom formwork (41) and a tie rod side formwork (42). Two adjacent tie rod formworks are connected by bolts, and the tie rod formwork (4) is fixedly connected to the inner formwork (1) by bolts.

6. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The truss (5) comprises an upper truss (51), a lower truss (52), a truss assembly connecting rod (53), and upper and lower truss connecting sockets (54); the insertion depth of the upper and lower truss connecting sockets is adjustable.

7. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The inner mold support rod (6) comprises an adjustable vertical support rod (61), an adjustable horizontal support rod (62), and an adjustable oblique support rod (63); one end of the inner mold support rod (6) is connected to the inner mold (1), and the other end is connected to the truss combination connecting rod (53), and the length of the support rod can be adjusted by screw rods at both ends.

8. The adjustable non-pull U-shaped aqueduct body prefabrication construction template and method according to claim 1, characterized in that The bottom tie rod (7) comprises a tie screw (71) and a nut (72). The tie screw (71) passes through the base (8) and the lower truss (52) at the same time, and is fixed at both ends of the tie screw (71) by nuts (72).

9. The method and method for prefabricating the adjustable non-pull U-shaped aqueduct body according to any one of claims 1 to 8 are characterized in that It includes the following steps: Step 1: according to the size of the trough body, respectively make the inner template (1), the outer template (2), the bottom template (3), the trough top combined tie rod template (4), the truss (5), the inner template support rod (6), and the trough bottom tie rod (7); Step 2: Set up the base (8), support the bottom form (3) on the base (8), and then tie the steel frame of the trough body according to the size of the trough body; Step 3: Install the outer formwork (2), the inner formwork (1) and the trough top combined tie rod formwork (4) respectively; Step 4: Connect the tops of the upper trusses (51) on both sides with the truss combination connecting rods (53), and connect the bottoms of the lower trusses (52) with the pull rods (7). Connect the upper trusses (51) and the lower trusses (52) with the vertically adjustable sockets (54). Connect the inner template (1) with the truss combination connecting rods (53) through the adjustable support rods (6), and fix the templates with nuts. Step 5: Use end templates to seal both ends of the casting section and fix them with nuts; Step 6: Cast the trough body (9). During the casting process, cast in layers, first cast the bottom plate, and then cast the arc sections on both sides, the straight wall section and the top beam after the casting is completed, so as to achieve a one-time integral casting of the trough body.

Images