Rectangular aqueduct integral type steel formwork system

Abstract

The utility model discloses an integral steel formwork system for a rectangular aqueduct. The steel formwork system comprises a bottom formwork system, an outer side formwork system, an inner side formwork system, an inner supporting system, a top cross beam system and an aqueduct pull rod hanging formwork system. The top beam system is hinged to the top end of the outer side mold system and the top end of the inner side mold system. The bottom end of the outer side die system is fixedly connected with the bottom die system; the inner supporting system supports the inner side formwork system, and the aqueduct pull rod formwork hanging system is arranged between the top of the inner side formwork system and the top cross beam system. Rectangular aqueduct pouring areas are formed between the outer side mold system and the inner side mold system and between the inner side mold system and the bottom mold system. The problems that an existing groove body formwork is low in efficiency, high in investment, long in construction period, prone to causing damage to a concrete structure and poor in construction convenience are solved.

Description

Technical Field

[0001] This utility model relates to an integral steel formwork system for rectangular aqueducts, belonging to the field of irrigation aqueduct construction technology. Background Technology

[0002] Due to varying flow rates in irrigation aqueducts within water conservancy projects, the aqueduct structure and net dimensions differ. U-shaped and rectangular shapes are the most common. Rectangular aqueducts, however, are not always regular in shape as their design requires consideration of pedestrian walkways, aqueduct tie rods, and other facilities.

[0003] For irregular rectangular aqueducts with small clearance dimensions, problems such as low efficiency, high investment, long construction period, high water seepage, and easy damage to concrete structures need to be addressed during the formwork installation, irregular structure treatment, and formwork removal processes. Utility Model Content

[0004] The present invention aims to provide an integral steel formwork system for rectangular aqueducts, which can solve the problems of low efficiency, high investment, long construction period, easy damage to concrete structures, and poor construction convenience of existing aqueduct formwork.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rectangular aqueduct integral steel formwork system, characterized in that it includes a bottom formwork system, an outer formwork system, an inner formwork system, an inner support system, a top beam system, and an aqueduct tie rod suspension formwork system;

[0007] The outer formwork system, bottom formwork system, inner formwork system, top beam system, and inner support system form an integrated steel formwork system.

[0008] The top beam system is hinged to the top ends of the outer mold system and the inner mold system respectively; the bottom end of the outer mold system is fixedly connected to the bottom mold system.

[0009] The inner support system supports the inner mold system, and the aqueduct tie rod suspension system is provided between the top of the inner mold system and the top crossbeam system.

[0010] A rectangular aqueduct casting area is formed between the outer mold system and the inner mold system, as well as between the inner mold system and the bottom mold system.

[0011] By hinged connection of the top crossbeam system to the top of the outer formwork system and the inner formwork system respectively, after the concrete of the rectangular aqueduct reaches the demolding strength, the bottom formwork system is removed, and then a truck crane is used to dismantle the single-span outer formwork system, inner formwork system, inner support system, and top crossbeam system as a whole using the lifting lugs. This achieves the purpose of installing and dismantling the entire span during the installation and dismantling process, and completely solves the problems of low efficiency, high investment, long construction period, easy damage to concrete structure, and poor construction convenience of the existing aqueduct formwork.

[0012] Based on the embodiments of this utility model, further optimizations can be made to this utility model. The optimized technical solutions are as follows:

[0013] In one preferred embodiment, the outer formwork system includes an outer formwork steel panel facing the rectangular aqueduct casting area, an outer formwork crossbeam fixedly connected to the outer formwork steel panel, an outer formwork truss crossbar located outside the outer formwork crossbeam, and an outer formwork truss upright connected to the outer formwork truss crossbar.

[0014] The outer formwork crossbeams are arranged longitudinally along the outer formwork steel panel. The outer formwork truss crossbars and outer formwork truss uprights form the outer formwork truss. The top of the outer formwork truss uprights is hinged to the top crossbeam system, so that the top crossbeam system and the outer formwork system are connected as a whole.

[0015] The outer mold system and the bottom mold system are fixedly connected by bottom anchors.

[0016] In one preferred embodiment, the inner mold system includes an inner mold steel panel facing the rectangular aqueduct casting area, an inner mold crossbeam fixedly connected to the inner mold steel panel, an inner mold truss crossbar disposed inside the inner mold crossbeam, and an inner mold truss upright connected to the inner mold truss crossbar.

[0017] The inner mold crossbeam is arranged longitudinally along the inner mold steel panel, and the inner mold truss crossbar and inner mold truss upright form the inner mold truss.

[0018] The top of the inner formwork truss upright is hinged to the top crossbeam system, so that the top crossbeam system and the inner formwork system are connected as a whole.

[0019] In a further preferred embodiment, the aqueduct tie rod formwork system includes a tie rod, a tie rod beam, and a shaped template; one end of the shaped template overlaps the inner formwork beam, and the other end is supported on the tie rod beam; the lower end of the tie rod is connected to the tie rod beam, and the top of the tie rod is fixed to the top of the inner formwork system.

[0020] In one preferred embodiment, the internal support system is provided with an upper counter-bracing jack, an inclined bracing jack, and a lower counter-bracing jack;

[0021] The upper counter-bracing jacks support the inner mold system via upper hinged supports, and the diagonal bracing jacks support the inner mold system via diagonal bracing hinged supports.

[0022] The lower counter-bracing jack supports the inner mold system via a lower hinged support.

[0023] In one preferred embodiment, the aqueduct tie rod formwork system includes a tie rod, a tie rod crossbeam, and a shaped template;

[0024] One end of the molded template is connected to the top of the inner mold system, and the other end is supported on the hanger beam; the upper end of the hanger is connected to the top beam system, and the lower end of the hanger is connected to the hanger beam.

[0025] In one preferred embodiment, the top beam system includes a beam, steel lugs disposed on the beam, and reserved holes for hinge connection with the outer mold system and the inner mold system.

[0026] In one preferred embodiment, the middle portion of the outer mold system is recessed inward, and the middle portion of the inner mold system protrudes outward.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. The inner and outer formwork of this utility model can be customized according to the dimensions of the irregular rectangular aqueduct body. The inner and outer formwork are connected to the upper crossbeam by pins. The position of the formwork can be accurately positioned according to the arrangement of the reserved holes. The entire span can be installed and dismantled during installation and dismantling, which is convenient, efficient and economical. The lifting lugs are evenly distributed, and the formwork system has high stability during hoisting.

[0029] 2. In the template system of this utility model, the installation of the aqueduct tie rod template is taken into account, which allows the aqueduct tie rod and the trough body to be cast at one time, and the inner mold is used as a support to reduce the amount of material used.

[0030] 3. Only three internal supports are set inside the trough of this utility model. The supports are supported by jacks, which makes the installation and removal of the supports fast. The template is corrected quickly and accurately using jacks.

[0031] 4. The utility model allows for support conversion after the bottom support is removed, ensuring the stability of the internal formwork system during hoisting. This is especially convenient and quick for construction of aqueducts with small clearance dimensions. Attached Figure Description

[0032] Figure 1 This is a cross-sectional view of the aqueduct body template arrangement according to an embodiment of the present invention;

[0033] Figure 2 This is a front view of the outer mold arrangement of the aqueduct body of this utility model;

[0034] Figure 3 This is a front view of the arrangement of the inner mold of the aqueduct body of this utility model.

[0035] In the figure

[0036] 1. Outer formwork system; 2. Inner formwork system; 3. Top crossbeam system; 4. Aqueduct tie rod suspension formwork system; 5. Internal support system; 6. Bottom formwork system; 7. Aqueduct body; 8. Distribution beam; 11. Outer formwork steel panel; 12. Outer formwork crossbeam; 13. Outer formwork truss crossbar; 14. Outer formwork truss upright; 15. Foot anchorage; 21. Inner formwork steel panel; 22. Inner formwork crossbeam; 23. 1. Inner formwork truss crossbar; 24. Inner formwork truss upright; 31. Horizontal beam; 32. Lifting lug; 33. Reserved hole; 41. Aqueduct tie rod; 42. Lifting rod; 43. Lifting rod crossbeam; 44. Shaped formwork; 51. Upper bracing jack; 52. Upper hinged support; 53. Support pin; 54. Diagonal bracing jack; 55. Diagonal bracing hinged support; 56. Lower hinged support; 57. Lower bracing jack. Detailed Implementation

[0037] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0038] Please see Figures 1-3 This embodiment provides an integral steel formwork system for a rectangular aqueduct with a span of 15m, comprising an outer formwork system 1, an inner formwork system 2, a top crossbeam system 3, an aqueduct tie rod formwork system 4, an inner support system 5, and a bottom formwork system 6. The bottom formwork system 6, the outer formwork system 1, the inner formwork system 2, the inner support system 5, and the top crossbeam system 3 are combined by welding and hinge to form an integral steel formwork system, which also takes into account the fabrication and installation of the aqueduct tie rod formwork.

[0039] The top beam system 3 mainly consists of an I-beam beam 31 with a specification of

[20] , a steel lug 32, and an A25 reserved hole 33.

[0040] like Figure 1 and 2The outer mold system 1 consists of an outer mold steel panel 11, an outer mold crossbeam 12, an outer mold truss crossbar 13, an outer mold truss upright 14, and a base anchor 15. The outer mold crossbeam 12 is arranged longitudinally along the outer mold steel panel 11 and is fully welded to the outer mold steel panel 11. The outer mold truss crossbar 13 and the outer mold truss upright 14 form the outer mold truss, and an A25 pre-reserved hole is provided at the top of the outer mold truss upright 14.

[0041] The outer formwork panel 11 can be customized according to the outer wall size of the aqueduct, thus adapting to different sizes of aqueduct outer walls. I-beams of

[10] can be used as outer formwork crossbeams, fully welded to the outer formwork panel at fixed intervals. The outer formwork truss crossbars 13 and outer formwork truss uprights 14 are welded to form the outer formwork truss system, and A25 pre-drilled holes are provided at the top of the outer formwork truss uprights 14 for connection to the upper crossbeam. The bottom of the outer formwork is fixed using foot anchors.

[0042] like Figure 1 and 3 The inner mold system 2 comprises an inner mold steel panel 21, an inner mold crossbeam 22, an inner mold truss crossbar 23, and an inner mold truss upright 24. The inner mold crossbeam 22 is arranged longitudinally along the inner mold steel panel 21 and is fully welded to it. The inner mold truss crossbar 23 and the inner mold truss upright 24 form the inner mold truss. A25 pre-drilled holes 33 are provided at the top of the inner mold truss upright 24.

[0043] The inner mold steel panel 21 can be customized according to the inner wall size of the aqueduct, thus being suitable for inner walls of different sizes. I-beams with a specification of

[10] can be used as inner mold crossbeams and fully welded to the inner mold steel panel at fixed intervals. The inner mold truss crossbar 23 and the inner mold truss upright 24 are welded to form the inner mold truss system. The inner support hinged support is welded to the inner mold truss upright 24 at fixed intervals, and an A25 reserved hole is set at the top of the inner mold truss upright for connection with the upper crossbeam. A lifting lug is set at the top of the reserved hole.

[0044] In some embodiments, A25 pre-reserved holes can be set according to the positions of the outer mold truss uprights 14 and the inner mold truss uprights 24. The outer mold system 1 and the inner mold system 2 are temporarily fixed by using pins to hinge the outer mold system 1 and the inner mold system 2 with steel pads arranged at both ends of the pins.

[0045] The internal support system 5 consists of an upper counter-bracing jack 51, an upper hinged support 52, a support pin 53, an inclined bracing jack 54, an inclined bracing hinged support 55, a lower hinged support 56, and a lower counter-bracing jack 57. The lower counter-bracing jack 57, the inclined bracing jack 54, and the upper counter-bracing jack 51 are installed from bottom to top on the inner side of the aqueduct body 7, and are connected to the corresponding hinged supports using the support pin 53.

[0046] One end of the formwork 44 is attached to the inner formwork beam. The formwork 44 is positioned using the hanger 42 and the hanger beam 43, and the hanger 42 is fixed to the top of the inner formwork system 2. The formwork 44 is preferably made of plastic.

[0047] In some embodiments, the bottom formwork system 6 consists of 6mm Q235 steel panels and [10 I-beam bottom beams. The outer formwork system 1 consists of 6mm Q235 steel panels, [10 I-beam crossbeams, bottom plate anchorage, and a fixed truss, with the truss uprights welded with stiffening plates. The inner formwork system 2 consists of 6mm Q235 steel panels, [10 I-beam crossbeams, and a fixed truss, with the truss uprights welded with stiffening plates; the inner support system 5 consists of upper and lower counter-bracing jacks, diagonal bracing jacks, support bases, and pins. The top crossbeam system 3 consists of [20 I-beams and Q235 steel plate lifting lugs; the aqueduct tie rod formwork system 4 consists of plastic fixed templates, low crossbars, C12 lifting rods, and upper and lower double nuts. The templates, back beams, supports, and lifting rods are welded and hinged together to form a rectangular aqueduct integral steel formwork system.

[0048] The installation process of the rectangular aqueduct integral steel formwork system in this embodiment is as follows:

[0049] After the support frame system is erected, distribution beams 8 are laid at fixed intervals. The bottom formwork system 6 is laid on top of the distribution beams 8. After the bottom formwork system 6 is installed, the reinforcing steel bars of the aqueduct body 7 are welded and installed. Bottom anchors 15 are pre-embedded at the bottom of the aqueduct body 7 and welded to the reinforcing steel bars of the aqueduct body 7.

[0050] Then, the outer formwork system 1 is installed and temporarily fixed. The upper hinged support 52 and the lower hinged support 56 are accurately positioned and welded to the inner formwork truss uprights 24, thus installing and positioning the inner formwork system 2. At the same time, the aqueduct tie rod formwork system 4 is fabricated and installed. One end of the plastic shaped template 44 is overlapped with the inner formwork crossbeam 22, and the other end is supported on the hanger crossbeam 43. The tie rod template is positioned using the hanger 42 and the hanger crossbeam 43, and the hanger 42 is fixed to the top of the inner formwork system 2. On the inner side of the aqueduct body 7, from bottom to top, the lower support jack 57, the diagonal support jack 54, and the upper support jack 51 are installed respectively, and connected to the corresponding hinged supports using support pins 53. Finally, the outer formwork truss uprights 14 and the inner formwork truss uprights 24 are hinged using pins through the pre-drilled holes 33 (A25) on the [20 I-beam crossbeam 31. Only after the top crossbeam system 3, the outer formwork system 1, and the inner formwork system 2 form a unified whole can concrete pouring be carried out.

[0051] The dismantling process of the rectangular aqueduct integral steel formwork system in this embodiment is as follows:

[0052] Once the concrete in section 7 of the aqueduct reaches the required strength for demolding, the pre-embedded anchoring steel bars 15 are cut. Then, the upper support jacks 51, diagonal support jacks 54, and lower support jacks 57 are depressurized, allowing them to naturally lower. The lower hinged support 56 on the right side of the lower support jack 57 is then moved to the next level. A truck crane is used to hoist the entire span of the formwork system and move it to the next span. This process is repeated to complete the formwork installation for the entire aqueduct.

[0053] This utility model's formwork system is shaped according to the aqueduct wall and can be installed in sections as a whole through hoisting. Customized plastic formwork is arranged in conjunction with the aqueduct tie rod positions. It has the advantages of convenient construction, accurate formwork positioning, low cost, flexible adjustment, and low water seepage.

[0054] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A rectangular aqueduct integral steel formwork system, characterized in that: It includes a bottom formwork system (6), an outer formwork system (1), an inner formwork system (2), an inner support system (5), a top beam system (3), and a trough tie rod suspension formwork system (4); the outer formwork system (1), bottom formwork system (6), inner formwork system (2), top beam system (3), and inner support system (5) form an integral steel formwork system; The top beam system (3) is hinged to the top ends of the outer mold system (1) and the inner mold system (2) respectively; the bottom end of the outer mold system (1) is fixedly connected to the bottom mold system (6); The inner support system (5) supports the inner side mold system (2), and the aqueduct tie rod suspension mold system (4) is provided between the top of the inner side mold system (2) and the top crossbeam system (3); A rectangular aqueduct casting area is formed between the outer mold system (1) and the inner mold system (2) and between the inner mold system (2) and the bottom mold system (6).

2. The rectangular aqueduct integral steel formwork system according to claim 1, characterized in that: The outer mold system (1) is provided with an outer mold steel panel (11) facing the rectangular aqueduct casting area, an outer mold crossbeam (12) fixedly connected to the outer mold steel panel (11), an outer mold truss crossbar (13) set outside the outer mold crossbeam (12), and an outer mold truss upright (14) connected to the outer mold truss crossbar (13). The outer formwork crossbeam (12) is arranged longitudinally along the outer formwork steel panel (11). The outer formwork truss crossbar (13) and the outer formwork truss upright (14) form the outer formwork truss. The top of the outer formwork truss upright (14) is hinged to the top crossbeam system (3) so that the top crossbeam system (3) and the outer formwork system (1) are connected as a whole. The outer mold system (1) and the bottom mold system (6) are fixedly connected by bottom anchors (15).

3. The rectangular aqueduct integral steel formwork system according to claim 1, characterized in that: The inner mold system (2) includes an inner mold steel panel (21) facing the rectangular aqueduct casting area, an inner mold crossbeam (22) fixedly connected to the inner mold steel panel (21), an inner mold truss crossbar (23) set inside the inner mold crossbeam (22), and an inner mold truss upright (24) connected to the inner mold truss crossbar (23). The inner mold crossbeam (22) is arranged longitudinally along the inner mold steel panel (21), and the inner mold truss crossbar (23) and the inner mold truss upright (24) form the inner mold truss; The top of the inner formwork truss upright (24) is hinged to the top crossbeam system (3), so that the top crossbeam system (3) and the inner formwork system (2) are connected as a whole.

4. The rectangular aqueduct integral steel formwork system according to claim 3, characterized in that: The aqueduct tie rod formwork system (4) includes a tie rod (42), a tie rod beam (43), and a template (44); one end of the template (44) overlaps the inner template beam (22), and the other end is supported on the tie rod beam (43); the lower end of the tie rod (42) is connected to the tie rod beam (43), and the top of the tie rod (42) is fixed to the top of the inner template system (2).

5. The rectangular aqueduct integral steel formwork system according to claim 1, characterized in that: The internal support system (5) is equipped with an upper counter-bracing jack (51), an inclined bracing jack (54) and a lower counter-bracing jack (57); The upper counter-bracing jack (51) supports the inner mold system (2) via the upper hinged support (52), and the inclined bracing jack (54) supports the inner mold system (2) via the inclined bracing hinged support (55). The lower counterweight jack (57) supports the inner mold system (2) via the lower hinge support (56).

6. The rectangular aqueduct integral steel formwork system according to claim 1, characterized in that: The aqueduct tie rod formwork system (4) includes a tie rod (42), a tie rod crossbeam (43), and a fixed template (44); One end of the molded template (44) is connected to the top of the inner mold system (2), and the other end is supported on the hanger beam (43); the upper end of the hanger (42) is connected to the top beam system (3), and the lower end of the hanger (42) is connected to the hanger beam (43).

7. The rectangular aqueduct integral steel formwork system according to any one of claims 1-6, characterized in that: The top beam system (3) includes a beam (31), steel lugs (32) provided on the beam (31), and reserved holes (33) that are hinged to the outer mold system (1) and the inner mold system (2).

8. The rectangular aqueduct integral steel formwork system according to any one of claims 1-6, characterized in that: The middle part of the outer mold system (1) is recessed inward, and the middle part of the inner mold system (2) protrudes outward.

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