Self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction technology

Abstract

The present invention discloses a self-supporting cantilever formwork, a formwork construction auxiliary device and a formwork construction process, and relates to the technical field of bridge construction. The self-supporting cantilever formwork comprises a formwork body and a support rod, and two opposite sides on the formwork body are respectively a connecting side and a cantilever side, and the connecting side is hinged to the outer edge of the upper wing plate of the I-beam on the side of the composite beam, and one end of the support rod is hinged to the cantilever side, and the other end is used to abut against the angle between the lower wing plate and the web of the I-beam, so as to support the formwork body through the support rod. The self-supporting cantilever formwork, the formwork construction auxiliary device and the formwork construction process have the characteristics of convenient disassembly and assembly, and safe construction.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a self-supporting cantilever formwork, a formwork construction auxiliary device and a formwork construction process. Background Art

[0002] I-beam-concrete composite beams are widely used in large-span and multi-span railway bridge projects. Compared with concrete simply supported beams and concrete continuous beams, they have the advantages of large span capacity and low building height.

[0003] However, during the construction process, the wing plates of the I-beam-concrete composite beam need to be cast in situ, but the wing plates are high above the ground, and the installation and disassembly of the formwork at the wing plates are cumbersome and less safe.

[0004] In view of this, it is particularly important to develop and design a self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction process that can solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a self-supporting cantilever formwork, which has the characteristics of convenient disassembly and assembly and safer construction.

[0006] Another object of the present invention is to provide a template construction auxiliary device, which also has the characteristics of convenient disassembly and assembly and safer construction.

[0007] Another object of the present invention is to provide a formwork construction process, which also has the characteristics of convenient disassembly and assembly and safer construction.

[0008] The present invention provides a technical solution:

[0009] In the first aspect, an embodiment of the present invention provides a self-supporting cantilever formwork, comprising a formwork body and a support rod; two opposite sides on the formwork body are respectively a connecting side and a cantilever side, and the connecting side is hinged to the outer edge of the upper wing plate of the I-beam on the side of the composite beam; one end of the support rod is hinged to the cantilever side, and the other end is used to support the angle between the lower wing plate and the web of the I-beam, so as to support the formwork body through the support rod.

[0010] In combination with the first aspect, in a first implementation method of the first aspect, one end of the support rod away from the template body is a supporting end, and the end face of the supporting end has a first supporting surface and a second supporting surface set at an angle, and the first supporting surface is used to support the side surface of the web, and the second supporting surface is used to support the top surface of the lower wing plate.

[0011] In combination with the first aspect and its above-mentioned implementation method, in a second implementation method of the first aspect, a telescopic adjustment portion is provided at one end of the support rod close to the template body, and the support rod is hinged to the cantilevered side edge through the telescopic adjustment portion; the telescopic adjustment portion can be extended or shortened to adjust the height of the cantilevered side edge.

[0012] In combination with the first aspect and the above-mentioned implementation manner, in a third implementation manner of the first aspect, the telescopic adjustment part is a forward and reverse wire adjustment rod.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in a fourth implementation method of the first aspect, a lifting connection portion is provided on the support rod, and a lifting hole is opened on the formwork body; the self-supporting cantilever formwork also includes a lifting piece, which can pass through the lifting hole and be connected to the lifting connection portion to lift the support rod, thereby driving the support rod to rotate relative to the formwork body, so that the end of the support rod away from the cantilever side is located within the angle between the web and the lower wing plate.

[0014] In combination with the first aspect and the above-mentioned implementation manner, in a fifth implementation manner of the first aspect, there are multiple template bodies, the multiple template bodies are arranged in an array, and the cantilevered sides of adjacent template bodies are connected to each other.

[0015] In combination with the first aspect and the above-mentioned implementation methods, in a sixth implementation method of the first aspect, the self-supporting cantilever formwork also includes an anti-detachment connecting rope, which can be connected to the cantilever side and is used to connect to the steel bars on the composite beam.

[0016] In the second aspect, an embodiment of the present invention further provides a formwork construction auxiliary device for installing the self-supporting cantilever formwork; the formwork construction auxiliary device includes a construction crane, which is used to be movably arranged on the composite beam and can be connected to the cantilever side to lift the formwork body for movement.

[0017] In combination with the second aspect, in a first implementation method of the second aspect, the formwork construction auxiliary device also includes a construction rail, which is used to be installed on the composite beam and is arranged along the extension direction of the composite beam. The construction crane can be movably arranged on the construction rail to hoist the formwork body connected to different positions of the composite beam along the construction rail.

[0018] In combination with the second aspect and its above-mentioned implementation, in a second implementation of the second aspect, the formwork construction auxiliary device also includes a construction transport vehicle, which can be movably arranged on the construction rail, and the construction transport vehicle can move along the construction rail to transport the formwork body.

[0019] In the third aspect, an embodiment of the present invention further provides a formwork construction process, which is applied to the formwork construction auxiliary device, and the formwork construction process includes: lifting the formwork body to the outer edge of the upper wing plate; hingedly connecting the connecting side and the outer edge of the upper wing plate; lifting the support rod, and making the end of the support rod away from the formwork body abut against the angle between the lower wing plate and the web, thereby supporting the formwork body through the support rod.

[0020] In combination with the third aspect, in a first implementation method of the third aspect, the formwork construction process also includes: lifting the cantilever side, and at the same time lifting the connecting side by an auxiliary channel, wherein the auxiliary channel is a through channel arranged when pouring bridge deck concrete on the composite beam, and one end of the auxiliary channel faces the connecting side; disconnecting the connecting side from the upper wing plate, and lowering the connecting side to make the formwork body in a hanging state; lifting the self-supporting cantilever formwork to a preset position to complete the dismantling of the self-supporting cantilever formwork.

[0021] Compared with the prior art, the self-supporting cantilever formwork provided by the embodiment of the present invention has the following beneficial effects over the prior art:

[0022] The two opposite sides on the formwork body are respectively a connecting side and a cantilever side. The connecting side is hinged to the outer edge of the upper wing plate of the I-beam on the side of the composite beam. One end of the support rod is hinged to the cantilever side, and the other end is used to abut against the angle between the lower wing plate and the web of the I-beam corresponding to the formwork body, so as to support the formwork body through the support rod. In this way, when installing the formwork body, the connecting side of the formwork body hinged to the support rod can be hinged to the outer edge of the upper wing plate first, and then the support rod can be lifted on the composite beam so that the end of the support rod away from the cantilever side can abut against the angle between the lower wing plate and the web of the corresponding I-beam. When disassembling the formwork body, the connection between the connecting side and the upper wing plate can be disconnected, so that the formwork body can be lifted. Its installation and disassembly are relatively convenient, and during the construction process, there is no need for construction personnel to support and remove the formwork under the I-beam, and its construction process is also safer.

[0023] The beneficial effects of the formwork construction auxiliary device and formwork construction process provided by the embodiments of the present invention relative to the prior art are the same as the beneficial effects of the above-mentioned self-supporting cantilever formwork relative to the prior art, and will not be repeated here.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic structural diagram of the self-supporting cantilever formwork provided in the first embodiment of the present invention when installed on a composite beam at one viewing angle.

[0027] Figure 2 A schematic structural diagram of the self-supporting cantilever formwork provided in the first embodiment of the present invention when installed on a composite beam from another perspective.

[0028] Figure 3 A schematic structural diagram of the support rods of the self-supporting cantilever formwork provided in the first embodiment of the present invention.

[0029] Figure 4 A schematic structural diagram of a template construction auxiliary device provided in the second embodiment of the present invention.

[0030] Figure 5 A schematic structural diagram of the template construction auxiliary device provided in the second embodiment of the present invention when installing the template body.

[0031] Figure 6 A schematic structural diagram of the template construction auxiliary device provided in the second embodiment of the present invention when the template body is dismantled.

[0032] Figure 7 A partial flow chart of the template construction process provided for the third embodiment of the present invention.

[0033] Figure 8 Another partial flow chart of the template construction process provided for the third embodiment of the present invention.

[0034] Icons: 20-formwork construction auxiliary device; 21-construction crane; 212-lifting steel rope; 22-construction guide rail; 23-construction transport vehicle; 10-self-supporting cantilever formwork; 11-formwork body; 111-connecting side; 112-cantilever side; 113-lifting hole; 12-support rod; 120-support end; 121-first abutting surface; 122-second abutting surface; 123-telescopic adjustment part; 125-lifting connection part; 13-lifting piece; 15-anti-slip connecting rope; 900-combined beam; 910-I-beam; 912-upper wing plate; 913-web plate; 916-lower wing plate; 920-bridge deck concrete; 921-auxiliary channel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. The orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship usually placed when the invention product is used, or the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. The terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

[0037] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] First embodiment:

[0040] See also Figure 1 and Figure 2 , Figure 1 A schematic structural diagram of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention when installed on a composite beam 900 at a certain viewing angle. Figure 2 The schematic diagram of the structure of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention when installed on a composite beam 900 from another perspective. The composite beam 900 is an I-beam-concrete composite beam.

[0041] The first embodiment of the present invention provides a self-supporting cantilever formwork 10, which has the characteristics of being easy to assemble and disassemble and safer to construct.

[0042] The structural composition, working principle and beneficial effects of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention will be specifically introduced below.

[0043] See also Figure 1 , Figure 2 and Figure 3 , Figure 3 A schematic structural diagram of the support rod 12 of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention.

[0044] The self-supporting cantilever formwork 10 includes a formwork body 11 and a support rod 12. The formwork body 11 is supported by the support rod 12 to facilitate the installation and disassembly of the formwork body 11. There is no need for manual work to support or remove the formwork under the composite beam 900. The operation is convenient and safe.

[0045] Specifically, the two opposite sides on the template body 11 are a connecting side 111 and a cantilevered side 112. In the present embodiment, the template body 11 is rectangular, and the connecting side 111 and the cantilevered side 112 are two non-adjacent edges on the template body 11. The connecting side 111 is hinged to the outer edge of the upper wing plate 912 of the I-beam 910 on the side of the composite beam 900, wherein the side of the composite beam 900 refers to the vertical side of the composite beam 900, and an I-beam 910 is respectively arranged on the two vertical sides of the composite beam 900, and the upper wing plates 912 and the lower wing plates 916 of the two I-beams 910 are arranged horizontally. In addition, the outer edge of the upper wing plate 912 refers to the edge of the upper wing plate 912 away from the composite beam 900.

[0046] One end of the support rod 12 is hinged to the cantilever side 112, and the other end is used to abut against the angle between the lower wing plate 916 and the web 913 of the I-beam 910 corresponding to the template body 11, so as to support the template body 11 through the support rod 12, so that the template body 11 is as shown in FIG. Figure 1 Status shown.

[0047] In this way, when installing the formwork body 11, the connecting side 111 of the formwork body 11 of the hinged support rod 12 can be hinged to the outer edge of the upper wing plate 912 first, and then the support rod 12 can be lifted on the composite beam 900 so that the end of the support rod 12 away from the cantilevered side 112 is against the angle between the lower wing plate 916 and the web 913 of the corresponding I-beam 910. When disassembling the formwork body 11, the connection between the connecting side 111 and the upper wing plate 912 can be disconnected, and the formwork body 11 can be lifted. The installation and disassembly are relatively convenient, and during the construction process, there is no need for construction personnel to support and remove the formwork under the I-beam 910, and the construction process is also safer.

[0048] Furthermore, one end of the support rod 12 away from the template body 11 is a support end 120, and the end face of the support end 120 may have a first supporting surface 121 and a second supporting surface 122 set at an angle, and the first supporting surface 121 is used to abut against the side of the web 913 of the I-beam 910, and the second supporting surface 122 is used to abut against the top surface of the lower wing plate 916 of the I-beam 910. In other words, the support end 120 abuts against the web 913 and the top surface of the lower wing plate 916 of the I-beam 910 at the same time, so as to improve the stability of the support rod 12 abutting against the I-beam 910 through the surface-to-surface abutment, thereby improving the stability of the template body 11.

[0049] In addition, a telescopic adjustment portion 123 may be provided at one end of the support rod 12 close to the template body 11, and the support rod 12 is hinged to the cantilevered side edge 112 through the telescopic adjustment portion 123, and the telescopic adjustment portion 123 can be extended or shortened to adjust the height of the cantilevered side edge 112, thereby adjusting the template body 11 to a preset position.

[0050] It should be noted that the telescopic adjustment part 123 can be a forward and reverse wire adjustment rod, that is, the telescopic adjustment part 123 is a structure composed of a sleeve and two sections of screw rods threadedly connected to the two ends of the sleeve. By rotating the sleeve in different directions, the two sections of the screw rods can be moved closer to or away from each other, so as to achieve the effect of adjusting the length of the support rod 12; of course, in other embodiments, the telescopic adjustment part 123 can also be other telescopic structures, and this embodiment does not limit its structural form.

[0051] Furthermore, the support rod 12 may be provided with a lifting connection portion 125, the formwork body 11 may be provided with a lifting hole 113, and the self-supporting cantilever formwork 10 may further include a lifting member 13, which can pass through the lifting hole 113 and is connected to the lifting connection portion 125 to lift the support rod 12, thereby driving the support rod 12 to rotate relative to the formwork body 11, so that the end of the support rod 12 away from the cantilever side 112 is located within the angle between the web 913 and the lower wing plate 916. In this way, when installing the formwork body 11, the construction personnel can lift the lifting member 13 connected to the lifting connection portion 125 on the support rod 12 on the composite beam 900 to achieve driving the support rod 12 to move, so that the support end 120 is against the angle between the web 913 and the lower wing plate 916, and the operation is safer.

[0052] It should be noted that, in the present embodiment, the lifting member 13 is a steel bar, which can pass through the lifting hole 113 and detachably hook the lifting connection part 125. The construction personnel operate the lifting member 13 above the composite beam 900 to complete the movement of the mobile support end 120 within the angle between the web 913 and the lower wing plate 916. Of course, in other embodiments, the lifting member 13 may also be a steel rope or an auxiliary lifting drive member arranged on the composite beam 900.

[0053] Furthermore, there may be a plurality of template bodies 11 , and the plurality of template bodies 11 are arranged in an array, and the cantilevered side edges 112 of adjacent template bodies 11 are connected to each other, thereby improving the stability of the template bodies 11 .

[0054] It should be noted that, in this embodiment, a latch hole (not marked in the figure) is provided on the cantilever side 112, and the adjacent template bodies 11 are connected by removably inserting the latch into the latch hole on the adjacent template body 11 to facilitate installation and removal.

[0055] Furthermore, the self-supporting cantilever formwork 10 may also include an anti-detachment connecting rope 15, which can be connected to the cantilever side 112 and is used to connect to the steel bars on the composite beam 900 to prevent the formwork body 11 from suddenly falling when installing or removing the formwork body 11, thereby further improving safety.

[0056] The working principle of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention is:

[0057] The two opposite sides of the formwork body 11 are respectively a connecting side 111 and a cantilevered side 112. The connecting side 111 is hinged to the outer edge of the upper wing plate 912 of the I-beam 910 on the side of the composite beam 900. One end of the support rod 12 is hinged to the cantilevered side 112, and the other end is used to abut against the angle between the lower wing plate 916 and the web 913 of the I-beam 910 corresponding to the formwork body 11, so as to support the formwork body 11 through the support rod 12. In this way, when installing the formwork body 11, the connecting side of the formwork body 11 of the hinged support rod 12 can be first 111 is hinged to the outer edge of the upper wing plate 912, and then the support rod 12 is pulled up on the composite beam 900 so that one end of the support rod 12 away from the cantilevered side edge 112 is pressed against the angle between the lower wing plate 916 and the web 913 of the corresponding I-beam 910. When disassembling the formwork body 11, the connection between the side edge 111 and the upper wing plate 912 can be disconnected, and the formwork body 11 can be lifted. The installation and disassembly are relatively convenient, and during the construction process, there is no need for construction personnel to support and remove the formwork under the I-beam 910, and the construction process is also safer.

[0058] In summary:

[0059] The first embodiment of the present invention provides a self-supporting cantilever formwork 10, which has the characteristics of convenient assembly and disassembly and safe construction.

[0060] Second embodiment:

[0061] See also Figure 4 , Figure 5 and Figure 6 , Figure 4 A schematic structural diagram of a template construction auxiliary device 20 provided in a second embodiment of the present invention. Figure 5 This is a schematic structural diagram of the template construction auxiliary device 20 provided in the second embodiment of the present invention when the template body 11 is installed. Figure 6 This is a schematic structural diagram of the template construction auxiliary device 20 provided in the second embodiment of the present invention when the template body 11 is disassembled.

[0062] The second embodiment of the present invention provides a formwork construction auxiliary device 20, which is used to assist in the installation of a self-supporting cantilever formwork 10, and has the characteristics of being easy to assemble and disassemble and safer to construct.

[0063] The template construction auxiliary device 20 includes a construction crane 21, which can be movably arranged on the composite beam 900, and the construction crane 21 can be connected to the cantilevered side 112 to lift the template body 11 for movement. When installing the template body 11, the template body 11 is lifted and moved to the outer edge position of the wing plate 912 on the I-beam 910. When disassembling the template body 11, the template body 11 is lifted to prevent the template body 11 from falling, thereby improving the convenience and safety of disassembly and assembly of the template body 11, and the template body 11 can also be lifted and transported to the composite beam 900.

[0064] It should be noted that, in the present embodiment, the construction crane 21 is a cantilever crane, which can rotate to cooperate with the boom to drive the cantilever formwork to move.

[0065] Furthermore, the formwork construction auxiliary device 20 may also include a construction rail 22, which is used to be installed on the composite beam 900, and the construction rail 22 is arranged along the extension direction of the composite beam 900. The construction crane 21 can be movably arranged on the construction rail 22 to hoist the formwork body 11 connected to different positions of the composite beam 900 along the construction rail 22.

[0066] In addition, the formwork construction auxiliary device 20 may further include a construction transport vehicle 23 , which may be movably disposed on the construction guide rail 22 . The construction transport vehicle 23 may move along the construction guide rail 22 to transport the formwork body 11 .

[0067] When installing the formwork body 11, the formwork body 11 can be hoisted from the construction transport vehicle to a position close to the outer edge of the upper wing plate 912 by the construction crane 21, so as to start the installation of the self-supporting cantilever formwork 10. Before installation, the anti-drop connection rope 15 is connected to the steel bars on the composite beam 900 to prevent the formwork body 11 from falling suddenly; when the connecting side 111 is close to the outer edge of the upper wing plate 912, the side 111 and the upper wing plate 912 are hingedly connected; the formwork body 11 is lowered, and at the same time ... anti-drop connection rope 15 is connected to the steel bars on the composite beam 900, the anti-drop connection rope 15 is connected to the steel bars on the composite beam 900 to prevent the formwork body 11 from falling suddenly; when the anti-drop connection rope 15 is connected to the steel bars on the composite beam 900, the anti-drop connection rope 15 is connected to The lifting member 13 lifts the support rod 12 so that the support rod 12 is supported at the right angle between the lower wing plate 916 and the web 913 of the I-beam 910. When the formwork body 11 is basically in place and the support rod 12 plays a supporting role, the construction personnel fine-tune the height of the formwork body 11 by rotating the telescopic adjustment part 123 so that the formwork body 11 is located at a preset position, and then connects with the adjacent formwork body 11, removes the lifting rope 212 between the formwork body 11 and the construction crane 21, and completes the installation of the formwork body 11.

[0068] When disassembling the formwork body 11, first connect the anti-drop connection rope 15 to the anchor point on the poured bridge deck concrete 920 on the composite beam 900 to prevent the formwork from falling off suddenly; then connect the cantilevered side 112 of the formwork body 11 to the lifting rope 212 of the construction crane 21, and then extend the lifting member 13 through the auxiliary channel 921 to pull the connecting side 111 of the formwork body 11, wherein the auxiliary channel 921 is a through hole corresponding to the connecting side 111 set when pouring the bridge deck concrete 920, disconnect the connection between the connecting side 111 and the upper wing plate 912, and then gradually lower the formwork body 11 until the formwork body 11 is in a suspended state, as shown in FIG. Figure 6 Then the formwork body 11 is lifted up by a construction crane 21 and placed on a construction transport vehicle, which is then transported to another location for installation of the formwork body 11 to achieve recycling.

[0069] The working principle of the template construction auxiliary device 20 provided in the second embodiment of the present invention is:

[0070] The self-supporting cantilever formwork 10 is transported by a construction transport vehicle, and the construction crane 21 lifts the self-supporting cantilever formwork 10 from the construction transport vehicle to a position close to the outer edge of the upper wing plate 912, so as to start the installation of the self-supporting cantilever formwork 10. When disassembling the formwork body 11, the cantilever side 112 of the formwork body 11 is connected by the construction crane 21 to lift the formwork body 11, maintain the position of the formwork body 11, and lift the formwork body 11 to the construction transport vehicle on the composite beam 900 by the construction crane 21, and then transport it to another position by the construction transport vehicle for installation of the formwork body 11.

[0071] In summary:

[0072] The second embodiment of the present invention provides a template construction auxiliary device 20, which also has the characteristics of convenient assembly and disassembly and safer construction.

[0073] Third embodiment:

[0074] See also Figure 7 , Figure 7 A partial flow chart of the template construction process provided for the third embodiment of the present invention.

[0075] The third embodiment of the present invention provides a formwork construction process, which is applied to the auxiliary construction device in the above embodiment to install and remove the self-supporting cantilever formwork 10. The formwork construction process also has the characteristics of convenient assembly and disassembly and safer construction.

[0076] It should be noted that the basic principles and technical effects of the template construction process provided in this embodiment are the same as those in the above embodiments. For the sake of brief description, for parts not mentioned in this embodiment, reference may be made to the corresponding contents in the above embodiments.

[0077] The template construction process includes:

[0078] Step S101: hoist the formwork body 11 to the outer edge of the upper wing plate 912 to facilitate the installation of the self-supporting cantilever formwork 10. Before installation, the anti-drop connection rope 15 can be connected to the steel bars on the composite beam 900 to prevent the formwork body 11 from falling suddenly and improve safety.

[0079] Step S102: hinge the side 111 and the outer edge of the upper wing plate 912. When the side 111 is connected close to the outer edge of the upper wing plate 912, the side 111 and the upper wing plate 912 are hingedly connected to facilitate the lower template body 11, further improving the safety of installing the template body 11.

[0080] Step S103: Pull up the support rod 12, and make the end of the support rod 12 away from the formwork body 11 abut against the angle between the lower wing plate 916 and the web plate 913. The formwork body 11 is supported by the support rod 12, and the formwork operation is simpler, and only needs to be operated on the composite beam 900, which is safer. In addition, the construction personnel can also fine-tune the height of the formwork body 11 by rotating the telescopic adjustment part 123, so that the formwork body 11 is located at a preset position, and then connect the adjacent formwork bodies 11, and then remove the formwork body 11 and the lifting rope 212 of the construction crane 21 to complete the installation of the formwork body 11.

[0081] See also Figure 8 , Figure 8 Another partial flow chart of the template construction process provided for the third embodiment of the present invention.

[0082] The formwork construction process may also include removing part of the formwork body 11:

[0083] Step S104: lift the cantilever side 112, and at the same time lift the connecting side 111 through the auxiliary channel 921. In this way, the position of the formwork body 11 is maintained. In addition, before lifting the connecting side 111, the anti-dropping connecting rope 15 can be connected to the anchor point on the completed bridge deck concrete 920 on the composite beam 900 to prevent the formwork from falling off suddenly.

[0084] Step S105: disconnect the connection between the connecting side 111 and the upper wing plate 912, and lower the connecting side 111 so that the template body 11 is in a suspended state. Figure 6 As shown, it is convenient for the construction crane 21 to transport the formwork body 11.

[0085] Step S106: hoist the self-supporting cantilever formwork 10 to a preset position to complete the dismantling of the self-supporting cantilever formwork 10. The formwork body 11 can be lifted onto the composite beam 900 by the construction crane 21, and then placed on a construction transport vehicle, which is then transported to another location for installation of the formwork body 11 to achieve recycling.

[0086] The working principle of the self-supporting cantilever formwork 10 provided in the third embodiment of the present invention is:

[0087] The formwork body 11 is hoisted to the outer edge of the upper wing plate 912 on the combined beam 900; the side edge 111 and the outer edge of the upper wing plate 912 are hingedly connected on the combined beam 900; and the support rod 12 is lifted on the combined beam 900 so that the end of the support rod 12 away from the formwork body 11 is against the angle between the lower wing plate 916 and the web 913. The operations are relatively simple and only need to be performed on the combined beam 900, which is safer.

[0088] In summary:

[0089] The third embodiment of the present invention provides a template construction process, which also has the characteristics of convenient disassembly and assembly and safer construction.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the features in the above embodiments can be combined with each other without conflict, and the present invention can also have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. In addition, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A self-supporting cantilever formwork, characterized in that: It comprises a template body (11) and a support rod (12); The two opposite sides of the template body (11) are respectively a connecting side (111) and a cantilevered side (112), and the connecting side (111) is hinged to the outer edge of the upper wing plate (912) of the I-beam (910) on the side of the composite beam (900); One end of the support rod (12) is hinged to the cantilever side (112), and the other end is used to abut against the angle between the lower wing plate (916) and the web plate (913) of the I-beam (910), so as to support the formwork body (11) through the support rod (12); The support rod (12) is provided with a lifting connection portion (125), and the template body (11) is provided with a lifting hole (113); The self-supporting cantilever formwork (10) also includes a lifting member (13), which can pass through the lifting hole (113) and is connected to the lifting connection part (125) to lift the support rod (12), thereby driving the support rod (12) to rotate relative to the formwork body (11), so that the end of the support rod (12) away from the cantilever side edge (112) is located within the angle between the web (913) and the lower wing plate (916).

2. The self-supporting cantilever formwork according to claim 1, characterized in that: The end of the support rod (12) away from the template body (11) is a support end (120), and the end face of the support end (120) has a first supporting surface (121) and a second supporting surface (122) set at an angle, and the first supporting surface (121) is used to support the side surface of the web (913), and the second supporting surface (122) is used to support the top surface of the lower wing plate (916).

3. The self-supporting cantilever formwork according to claim 1, characterized in that: A telescopic adjustment portion (123) is provided at one end of the support rod (12) close to the template body (11), and the support rod (12) is hinged to the cantilevered side edge (112) via the telescopic adjustment portion (123); The telescopic adjustment portion (123) can be extended or shortened to adjust the height of the cantilevered side edge (112).

4. The self-supporting cantilever formwork according to claim 1, characterized in that: There are a plurality of the template bodies (11), and the plurality of the template bodies (11) are arranged in an array, and the cantilevered side edges (112) of adjacent template bodies (11) are connected to each other.

5. The self-supporting cantilever formwork according to claim 1, characterized in that: The self-supporting cantilever formwork (10) further comprises an anti-detachment connecting rope (15), wherein the anti-detachment connecting rope (15) can be connected to the cantilever side edge (112) and is used to connect to the steel bars on the composite beam (900).

6. A template construction auxiliary device, characterized in that: Used for installing the self-supporting cantilever formwork (10) as claimed in any one of claims 1 to 5; The formwork construction auxiliary device (20) comprises a construction crane (21), which is used to be movably arranged on the composite beam (900) and can be connected to the cantilevered side (112) to lift the formwork body (11) for movement.

7. The template construction auxiliary device according to claim 6, characterized in that: The formwork construction auxiliary device (20) further comprises a construction rail (22), wherein the construction rail (22) is used to be installed on the composite beam (900) and is arranged along the extension direction of the composite beam (900), and the construction crane (21) is movably arranged on the construction rail (22) to hoist the formwork body (11) connected to different positions of the composite beam (900) along the construction rail (22).

8. The template construction auxiliary device according to claim 7, characterized in that: The formwork construction auxiliary device (20) further comprises a construction transport vehicle (23), wherein the construction transport vehicle (23) is movably arranged on the construction guide rail (22), and the construction transport vehicle (23) is capable of moving along the construction guide rail (22) to transport the formwork body (11).

9. A template construction process, characterized in that: Applied to the template construction auxiliary device as described in any one of claims 6 to 8, the template construction process includes: Lifting the formwork body (11) to the outer edge of the upper wing plate (912); Hinging the connecting side edge (111) and the outer edge of the upper wing plate (912); The support rod (12) is pulled up, and one end of the support rod (12) away from the template body (11) is pressed against the angle between the lower wing plate (916) and the web plate (913), thereby supporting the template body (11) through the support rod (12).

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