Device and method for erecting concrete formwork on a steel structure platform beam

Abstract

The application provides a device and method for erecting a concrete formwork on a steel structure platform beam, which directly erects a formwork supporting device on the upper surface of the lower flange of the steel beam, reduces a large amount of manpower and material resources input compared with a full-support supporting system supported on the ground, and fully utilizes the structural characteristics of the steel beam to embed a space supporting system in the steel beam through longitudinal, transverse and vertical beams, and the connecting fasteners connected with the transverse and longitudinal steel beams are just clamped between the lower flanges of the steel beam, so that the transverse movement of the supporting system can be prevented. The application can be assembled into a whole on the ground, hoisted and placed in position in an inclined manner, effectively improves the construction efficiency, and is convenient to disassemble and assemble, can be repeatedly used and saves the construction cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, and more particularly, to a device and method for erecting a concrete formwork on a steel structure platform beam. BACKGROUND

[0002] In today's popular steel structure buildings and structures, it is a common practice to pour concrete floor slabs on steel structure floor beams and platform beams. Steel structures have the advantages of light weight, good seismic performance, fast construction speed, and small environmental pollution. Concrete floor slabs, as a common steel structure building floor method, have the advantages of high comfort, good sound insulation and thermal insulation effect, high bearing capacity, low production cost, and mature construction method.

[0003] In order to fully utilize the advantages of concrete floor slabs and steel structures, concrete floor slabs are combined with steel beams. The common practice is to erect the concrete floor slabs on the upper part of the steel beams. In construction, a formwork support frame is usually erected below the platform, and then a formwork is laid on the top of the support frame and steel bars are tied. Finally, concrete is poured. This method is the same as the formwork erection method of full concrete structure, and a large amount of full scaffold support erection and post-removal work is required, which prolongs the construction period, increases the cost, consumes a large amount of manpower and resources, and has the safety problem of poor overall stability. At the same time, for some areas where steel beams are densely arranged or unevenly arranged, the erection of support frames cannot achieve standardized operation, and the construction efficiency is low.

[0004] Therefore, a targeted formwork erection method needs to be adopted according to the structural characteristics of steel beam-concrete slabs, which can effectively improve the construction efficiency, reduce the labor input, and save the construction cost. SUMMARY

[0005] In view of the above problems, the purpose of the present application is to provide a new device and method for erecting a concrete formwork on a steel structure platform beam, which does not require a large amount of full scaffold support, reduces the erection and post-removal work of the support, reduces the labor consumption, improves the construction efficiency, and ensures the construction safety.

[0006] According to one aspect of the present application, a device for erecting a concrete formwork on a steel structure platform beam is provided, characterized in that it comprises two steel beams, a formwork support device embedded on the lower flanges of the two steel beams, and a formwork supported on the formwork support device; wherein,

[0007] The formwork support device comprises a support frame and an adjustment structure; wherein,

[0008] The support frame comprises at least two transverse beams, two longitudinal beams, and a vertical beam vertically arranged at one side of the connection between the transverse beam and the longitudinal beam;

[0009] The adjusting structure is arranged at the top end of the vertical beam; wherein,

[0010] The adjusting structure comprises an adjusting screw rod, an adjusting nut threadedly connected with the adjusting screw rod, and a supporting piece arranged at the top of the adjusting screw rod; the formwork is arranged above the supporting piece.

[0011] Preferably, the two steel beams are H-shaped steel beams.

[0012] Preferably, the transverse beam, the longitudinal beam and the vertical beam are connected with each other by connecting fasteners.

[0013] Preferably, the connecting fastener is a cross-shaped fastener.

[0014] Preferably, the supporting piece is welded and fixed at the top of the adjusting screw rod.

[0015] Preferably, the supporting piece is a concave-shaped structure.

[0016] Preferably, a cushion block is arranged on the supporting piece, and the formwork is arranged above the cushion block.

[0017] Preferably, the length of the transverse beam is greater than the distance between the lower flanges of the two steel beams and less than the distance between the lower flange root of one steel beam and the upper flange of the other steel beam.

[0018] Preferably, the outer distance between the two connecting fasteners arranged at the two ends of the transverse beam is equal to the distance between the lower flanges of the two steel beams.

[0019] According to another aspect of the present application, the present application also provides a method for erecting a concrete formwork on a steel structure platform beam, comprising the following steps:

[0020] S1, determining the length of the transverse beam according to the distance between the two steel beams and manufacturing the transverse beam; determining the length of the longitudinal beam according to the length of the two steel beams and manufacturing the longitudinal beam;

[0021] S2, connecting the transverse beam and the longitudinal beam, then connecting the vertical beam on one side of the connection between the transverse beam and the longitudinal beam to form a support frame in the transverse, longitudinal and vertical directions;

[0022] S3, integrally tilting and hoisting the support frame to place it between the upper and lower flanges of the two steel beams and horizontally place it on the upper surface of the lower flanges of the two steel beams;

[0023] S4, the adjusting structure is inserted into the top end of the vertical beam and leveled, and after overall leveling, the cushion block is placed on the supporting piece at the top end of the adjusting structure and the formwork is laid, and the next step of the reinforced concrete construction is carried out;

[0024] S5, the formwork supporting device is removed after the reinforced concrete is solidified.

[0025] The device and method for erecting the concrete formwork on the steel structure platform beam provided by the application directly erect the formwork supporting device on the upper surface of the lower flange of the steel beam, reduce a large amount of manpower and material resources input compared with the full-support support system supported on the ground, the clamping seat type support system fully utilizes the structural characteristics of the steel beam, and is embedded on the steel beam through the longitudinal, transverse and vertical beams to erect the space support system, the connecting fastener connected by the transverse and longitudinal steel beams is just clamped between the lower flanges of the steel beam, and the support system can be prevented from moving transversely; the support device can be assembled into a whole on the ground and then hoisted and placed in position in an inclined manner, the construction efficiency is effectively improved, the device is convenient to disassemble and assemble as a whole, can be reused, and the construction cost is saved.

[0026] To the accomplishment of the foregoing and related ends, one or more aspects of the application, as hereinafter more fully described, the following detailed description and readily understood in conjunction with the accompanying drawings and the appended claims. As the following makes reference to a number of embodiments of the application, the application is illustrated by reference to the exemplary drawings associated with the following written description several exemplary aspects of the application. However, these aspects are indicated merely as a number of manners in which the principles of the application can be employed. Also, the application is intended to include all aspects and their equivalents. BRIEF DESCRIPTION OF DRAWINGS

[0027] Other objects and results of the application will become more fully apparent and readily understood from the following detailed description, the accompanying drawings, and the appended claims taken in conjunction with the reference to the description of the drawings wherein:

[0028] Figure 1 The structural schematic diagram of the formwork supporting device according to the embodiment of the application;

[0029] Figure 2 The structural schematic diagram of the support frame according to the embodiment of the application;

[0030] Figure 3 The structural schematic diagram of the adjusting mechanism according to the embodiment of the application;

[0031] Figure 4 The three-dimensional structure diagram of the formwork supporting device according to the embodiment of the application;

[0032] Figure 5 The flow chart of the method for erecting the concrete formwork on the steel structure platform beam according to the embodiment of the application;

[0033] Figure 6The erection process diagram of the template support device according to the embodiment of the present application.

[0034] In the figure, 1-steel beam; 11-upper flange; 12-lower flange; 13-web; 2-template support device; 21-support frame; 211-transverse beam; 212-longitudinal beam; 213-vertical beam; 214-connection fastener; 22-adjusting mechanism; 221-adjusting screw; 222-adjusting nut; 223-supporting piece; 23-pad; 3-template.

[0035] The same reference numbers in all the figures indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0036] In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It can be apparent, however, that such embodiment(s) can be practiced without using all the specific details.

[0037] In view of the defects in the prior art device and method for erecting concrete formwork on the steel structure platform beam, the template support device provided by the present application is directly erected on the upper surface of the lower flange of the steel beam, which reduces a large amount of manpower and material resources compared with the method of supporting the full-frame support on the ground; the template support device is hoisted into place after being assembled into a whole on the ground, which effectively improves the construction efficiency, and the template support device is convenient to disassemble and assemble as a whole, can be reused, and effectively saves the construction cost.

[0038] Figure 1 The structural schematic diagram of the template support device according to the embodiment of the present application; Figure 2 The structural schematic diagram of the support frame according to the embodiment of the present application; Figure 3 The structural schematic diagram of the adjusting mechanism according to the embodiment of the present application; Figure 4 The three-dimensional structure diagram of the template support device according to the embodiment of the present application.

[0039] As Figures 1 to 4 It is shown together that the device for erecting concrete formwork on the steel structure platform beam provided by the present application mainly comprises two steel beams 1, a template support device 2 embedded on the lower flanges 12 of the two steel beams 1, and a template 3 supported on the template support device 2.

[0040] Among them, the two steel beams 1 are parallel to each other, which facilitates the installation of the template support device 2; the template support device 2 is a clamping seat type template support device, which is embedded on the lower flanges 12 of the two steel beams 1.

[0041] In a preferred embodiment of the present application, the two steel beams 1 are H-shaped steel beams, which comprise upper flanges 11, lower flanges 12 and webs 13, facilitating embedding the formwork support device 2 on the lower flanges 12 of the two steel beams 1.

[0042] The formwork support device 2 comprises a support frame 21 and an adjusting structure 22; wherein the support frame 21 is embedded between the two steel beams 1 as a support structure, and the adjusting structure 22 can adjust the height of the formwork 3 to make the height of the formwork 3 meet the construction requirements.

[0043] The support frame 21 comprises at least two transverse beams 211, two longitudinal beams 212 and vertical beams 213 vertically arranged at one side of the connection between the transverse beams 211 and the longitudinal beams 212.

[0044] In a preferred embodiment of the present application, the transverse beams 211, the longitudinal beams 212 and the vertical beams 213 are all made of scaffold steel pipes, which are convenient to obtain, hollow in structure, light in weight, convenient to transport and low in cost; the transverse beams 211, the longitudinal beams 212 and the vertical beams 213 are connected with each other by connecting fasteners 214, wherein the connecting fasteners 214 are common cross-shaped fasteners, which can make the connection between the transverse beams 211, the longitudinal beams 212 and the vertical beams 213 more stable and improve the construction safety.

[0045] In a preferred embodiment of the present application, the length of the transverse beam 211 is greater than the distance between the lower flanges 12 of the two steel beams 1 and less than the distance between the root of the lower flange 12 of one steel beam 1 and the upper flange 11 of the other steel beam 1; the assembled support frame 21 can be tilted and hoisted from above the steel beams 1 and placed between the two steel beams 1, and can be embedded on the lower flanges 12 of the two steel beams 1.

[0046] In a preferred embodiment of the present application, the outer distance between the two connecting fasteners 214 arranged at the two ends of the transverse beam 211 is equal to the distance between the lower flanges 12 of the two steel beams 1, so that the two connecting fasteners 214 arranged at the two ends of the transverse beam 211 are just clamped between the lower flanges 12 of the two steel beams 1, preventing the transverse beam 211 from moving transversely and affecting the stability of the formwork support device 2; the number of the transverse beams 211 is arranged at intervals according to the length of the steel beams 1 to meet the requirements of formwork support strength.

[0047] The adjusting structure 22 is arranged at the top end of the vertical beam 213 and used for adjusting the height of the formwork 3; wherein the adjusting structure 22 comprises an adjusting lead screw 221, an adjusting nut 222 threadedly connected with the adjusting lead screw 221 and a supporting piece 223 arranged at the top of the adjusting lead screw 221; the bottom of the adjusting lead screw 221 is inserted into the vertical beam 213 from the top end of the vertical beam 213, and the height of the formwork 3 is adjusted by adjusting the position of the adjusting nut 222 on the adjusting lead screw 221; the supporting piece 223 is used for supporting the formwork 3; and the formwork 3 is arranged above the supporting piece 223.

[0048] In another preferred embodiment of the present application, an inner thread matched with the outer thread of the adjusting lead screw 221 is arranged in the vertical beam 213, so that the adjusting lead screw 221 can be threadedly connected with the vertical beam 213, and the connection is more stable; a cushion block 23 is arranged on the supporting piece 223, and the formwork 3 is arranged above the cushion block 23, so that the contact area between the formwork 3 and the formwork supporting device 2 can be increased, and the supporting strength can be improved; and the cushion block 23 directly contacts with the formwork 3, so that the abrasion of the supporting piece 223 caused by the formwork 3 can be reduced.

[0049] In one preferred embodiment of the present application, the supporting piece 223 is welded and fixed at the top of the adjusting lead screw 221, so that the connection is stable and not easy to break; the supporting piece 223 has a concave structure, so that the cushion block 23 is not easy to fall off from the supporting piece 223, and the practicability and safety are high; and the cushion block 23 is made of square wood, so that the raw material is easy to obtain, the use is convenient, and the cost is low.

[0050] Figure 5 A flow chart of the method for erecting a concrete formwork on a steel structure platform beam according to the embodiment of the present application is shown in the figure; Figure 6 An erection process diagram of the formwork supporting device according to the embodiment of the present application is shown in the figure.

[0051] As shown in the figures, Figure 5 and Figure 6 The present application provides a method for erecting a concrete formwork on a steel structure platform beam, which comprises the following steps:

[0052] S1, determining the length of the horizontal beam 211 according to the distance between two steel beams 1 and manufacturing the horizontal beam 211; and determining the length of the vertical beam 212 according to the length of the two steel beams 1 and manufacturing the vertical beam 212.

[0053] In this step, the length of the horizontal beam 211 is greater than the distance between the lower flanges 12 of the two steel beams 1 and less than the distance between the root of the lower flange 12 of one steel beam 1 and the upper flange 11 of the other steel beam 1, so that the assembled supporting frame 21 can be hoisted from above the steel beams 1 and placed between the two steel beams 1, and can be embedded on the lower flanges 12 of the two steel beams 1; and the vertical beam 212 is provided with two vertical beams, so that the dispersed horizontal beams 211 can be connected to form a whole.

[0054] S2, the transverse beam 211 and longitudinal beam 212 are connected, and then the vertical beam 213 is connected on one side of the connection of the transverse beam 211 and the longitudinal beam 212, forming a support frame 21 in three directions of transverse, longitudinal and vertical.

[0055] In this step, the transverse beam 211, longitudinal beam 212 and vertical beam 213 are connected with each other by using connecting fasteners 214, and the vertical beam 213 is arranged on the inner side of the connection of the transverse beam 211 and the longitudinal beam 212, facilitating the adjustment of the position of the vertical beam 213; the number of transverse beams 211 is arranged at intervals according to the length of the steel beam 1, meeting the requirements of the formwork support strength.

[0056] S3, the support frame 21 is hoisted and placed between the upper and lower flanges 12 of the two steel beams 1 and is placed horizontally on the upper surface of the lower flange 12 of the two steel beams 1.

[0057] In this step, the support frame 21 is hoisted and placed between the upper and lower flanges 12 of the two steel beams 1 and is placed horizontally on the upper surface of the lower flange 12 of the two steel beams 1 by using a crane, which can save manpower and improve construction safety.

[0058] S4, the adjusting structure 22 is inserted into the top end of the vertical beam 213 and is leveled, and after the whole leveling, the cushion block 23 is placed on the bearing 223 at the top end of the adjusting structure 22 and the formwork 3 is laid, and the next step of reinforced concrete construction is carried out.

[0059] In this step, the leveling process of the adjusting structure 22 is to make the height of the formwork 3 meet the construction requirements and ensure the construction quality.

[0060] S5, after the reinforced concrete is solidified, the formwork support device 2 is removed.

[0061] When the formwork support device 2 is removed, the adjusting nut 222 of the adjusting mechanism 22 is first loosened, the support frame 21 is unloaded, then the cushion block 23 is removed, and finally the vertical beam 213, the longitudinal beam 212 and the transverse beam 211 are removed step by step, the removal of the formwork support device 2 is completed, and the construction is completed.

[0062] Through the description of the technical solutions and the accompanying drawings, it can be seen that the device and method for erecting a concrete formwork on a steel structure platform beam provided by the present application directly erect the formwork support device on the upper surface of the lower flange of the steel beam, which reduces a large amount of manpower and material resources input compared with the full-support support system supported on the ground; the support system with a clamping seat fully utilizes the structural characteristics of the steel beam, and the space support system is embedded on the steel beam through longitudinal, transverse and vertical beams, and the connecting fasteners connected with the transverse and longitudinal steel beams are clamped in the lower flanges of the steel beam, which can prevent the support system from moving transversely; the support device can be assembled into a whole on the ground and then hoisted into position, which effectively improves the construction efficiency, and the device is convenient to disassemble and assemble as a whole, can be reused, and saves construction cost.

[0063] Through the description of the technical solutions and the specific embodiments of the present application, it can be determined that the device and method for erecting a concrete formwork on a steel structure platform beam provided by the present application have the following advantages:

[0064] 1) The method is advanced, ingenious, simple to implement, and has sufficient theoretical basis, and has promotion value in the construction of erecting a reinforced concrete formwork on a steel structure platform beam;

[0065] 2) Compared with the traditional method of erecting a steel pipe full-support support system under the steel beam for formwork construction, a large amount of manpower and material resources is saved, and the construction efficiency is effectively improved; the hoisting by a crane not only saves manpower and material resources, but also improves the construction safety;

[0066] 3) The present technology fully utilizes the structural characteristics of the steel beam, and directly places the steel pipe support system on the lower flange of the steel beam, which greatly improves the construction efficiency and significantly improves the economic benefit.

[0067] The device and method for erecting a concrete formwork on a steel structure platform beam according to the present application are described above with reference to the accompanying drawings by way of example. However, those skilled in the art should understand that various improvements can be made to the device and method for erecting a concrete formwork on a steel structure platform beam provided by the present application without departing from the content of the present application. Therefore, the protection scope of the present application should be determined by the content of the appended claims.

Claims

1. A device for erecting a concrete form on a steel structure platform beam, characterized by, The device comprises two parallel steel beams, a clamping seat type formwork support device embedded on the lower flanges of the two steel beams, and a formwork supported on the formwork support device. The formwork support device comprises a support frame and an adjusting structure. The support frame comprises at least two transverse beams, two longitudinal beams, and vertical beams vertically arranged on one side of the connection between the transverse beams and the longitudinal beams. The adjusting structure is arranged on the top end of the vertical beams. The adjusting structure comprises an adjusting screw, an adjusting nut threadedly connected with the adjusting screw, and a supporting piece arranged on the top of the adjusting screw.

2. The apparatus for forming a concrete form on a steel deck beam of a steel deck platform as recited in claim 1, wherein The two steel beams are H-shaped steel beams.

3. The apparatus for forming a concrete form on a steel deck beam of a steel deck platform as recited in claim 1, wherein The supporting piece is welded and fixed on the top of the adjusting screw.

4. The apparatus for forming a concrete form on a steel deck beam of a steel deck platform as recited in claim 1, wherein The supporting piece is a concave structure.

5. A device for erecting a concrete form on a steel deck beam as claimed in claim 3 or 4, wherein, A cushion block is arranged on the supporting piece, and the formwork is arranged above the cushion block.

6. The apparatus for forming a concrete form on a steel deck beam of a steel deck platform as recited in claim 1, wherein The length of the transverse beam is greater than the distance between the lower flanges of the two steel beams and less than the distance between the lower flange root of one steel beam and the upper flange of the other steel beam.

7. A method for erecting a concrete formwork on a steel structure platform beam, using the device for erecting a concrete formwork on a steel structure platform beam according to any one of claims 1-6 to erect the concrete formwork, comprising the following steps: S1. Determine the length of the transverse beam according to the distance between the two steel beams and manufacture the transverse beam; determine the length of the longitudinal beam according to the length of the two steel beams and manufacture the longitudinal beam; S2. Connect the transverse beam and the longitudinal beam with connecting fasteners, and then connect the vertical beam on one side of the connection between the transverse beam and the longitudinal beam with connecting fasteners to form a support frame in the horizontal, vertical, and longitudinal directions; S3. Hoist the support frame as a whole to be inclined and placed between the upper and lower flanges of the two steel beams and horizontally placed on the upper surface of the lower flanges of the two steel beams; S4. Insert the adjusting structure into the top end of the vertical beam and level it, place a cushion block on the supporting piece at the top end of the adjusting structure after overall leveling, and lay the formwork to proceed to the next step of reinforced concrete construction; S5. Remove the formwork support device after the reinforced concrete solidifies.

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