Advanced sealing device for straining beam at post-cast strip of portal rigid frame structure
By designing a leading sealing device for pulling beams at the rear casting strip of the door-type rigid frame structure, the pulling beams are connected by using top molds, side molds and cast pipes, the problems of extended construction period and poor construction quality caused by the traditional rear casting strip construction methods are solved, and the construction period is shortened, cost reduction and construction quality improvement are achieved.
Patent Information
- Application Number
- CN202421071758.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In construction, the traditional post-pouring belt construction method is restricted by the construction time, resulting in an extension of the construction period, affecting the development of subsequent work, and the quality of subsequent processes such as backfill is not guaranteed.
A leading closure device for the pulling beam at the rear casting strip of the door-type rigid frame structure is designed, including the top mold, the side mold and the casting pipe. It is fixed between the pulling beams by pulling screws to form a closed space, and the pulling beams are connected by pouring concrete through the pouring pipe.
This device can effectively shorten the construction period, save construction time, avoid the time limit for post-pouring belt construction, speed up project progress, and optimize the construction process, reduce construction costs, and improve construction quality.
Smart Images
Figure CN222558116U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction, and in particular relates to an advanced closing device for a tension beam at a post-casting zone of a portal rigid frame structure. Background Art
[0002] In building construction, the foundation form of portal frame structure is generally an independent foundation, and the independent foundations are connected into a whole by tension beams. The building length is very long, and the purpose of setting the post-cast strip is to prevent harmful cracks in the reinforced concrete structure due to settlement, temperature and uneven shrinkage, and reduce damage to the integrity of the structure. According to relevant standards, the post-cast strip must meet certain conditions before construction. However, more and more projects are currently restricted by the construction period, and the backfilling of the center of the house and the ground process need to be interspersed in advance. The traditional post-cast strip construction method is mainly restricted by the construction time, which greatly affects the development of related follow-up work. Utility Model Content
[0003] Aiming at the problems that the construction period is delayed due to the influence of the post-casting strip at the construction site, and the quality of subsequent processes such as backfilling cannot be guaranteed due to the post-casting strip left, the utility model provides an advance closing device for the tension beam at the post-casting strip of the portal frame structure.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an advanced closing device for the tension beam at the post-casting strip of a portal frame structure, comprising a top form and two side forms, the two side forms are fixed between the two sections of the tension beam by tension screws passing through reserved holes, and the two are respectively attached to the front and rear sides of the two sections of the tension beam, the top form is fixed between the tops of the two side forms by tension screws, and a closed space of the two sections of the tension beam is formed, a casting pipe is connected to the top form, and concrete is poured into the closed space through the casting pipe to cast and connect the two sections of the tension beam.
[0005] As a further explanation and limitation of the above technical solution, the top mold includes a top plate and two clamping plates vertically fixed on its end faces, at least one first mounting hole is respectively arranged at both ends of each clamping plate, and one end of the casting pipe is fixed on the top plate; the side mold includes a side plate, at both ends of the side plate are respectively arranged second mounting holes corresponding to the reserved holes, the first mounting hole and the second mounting hole are both used for the tension screw to pass through to realize assembly connection.
[0006] As a further supplementary explanation of the above technical solution, an extension pipe is detachably installed on the casting pipe, and the extension pipe is used to increase the landfill height of the cast concrete.
[0007] As a further supplement to the above technical solution, a first connecting flange is fixed to the other end of the casting pipe, and a second connecting flange is fixed to one end of the extension pipe. The first connecting flange and the second connecting flange are connected by multiple sets of bolts and nuts to assemble the casting pipe and the extension pipe.
[0008] As a further supplement to the above technical solution, a cover is provided on the other end of the casting pipe or the extension pipe, and the cover is used to prevent the backfill soil from entering the closed space during the backfilling process.
[0009] As a further supplementary explanation of the above technical solution, a handle is provided on the cover, and the handle is convenient for on-site construction workers to pick up the cover.
[0010] As a further supplement to the above technical solution, a first sealing pad layer is arranged in the contact area between the side form and the two sections of the tension beam, and a second sealing pad layer is arranged in the contact area between the top form and the two sections of the tension beam. The first sealing pad layer and the second sealing pad layer are used together to ensure the sealing of the sealed space and the elasticity of the poured concrete.
[0011] As a further supplementary explanation of the above technical solution, a gasket is provided between the first sealing pad layer and the tension beams at both ends, and the gasket is used to increase the pre-tightening force of the tension screw on the first sealing pad layer.
[0012] As a further supplement to the above technical solution, the casting pipe is connected to the top mold through a plurality of inclined support plates to ensure the stability between the casting pipe and the top mold.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] 1. The advanced closing device designed by the utility model is composed of a top mold and two side molds, and is installed between two sections of tension beams through a tension screw rod to form a closed space for later pouring of concrete; at the same time, a pouring pipe is connected to the top mold, and the pouring concrete is poured into the closed space through the pouring pipe to connect the two sections of tension beams. The utility model has the advantages of simple structure and local production, which can effectively shorten the construction period of the building. Since the device is easy to use, it can effectively save construction time and avoid the construction period being restricted by the construction of the post-casting belt, thereby accelerating the overall progress of the project.
[0015] 2. The utility model has an extension pipe installed on the pouring pipe in a detachable manner. The beneficial effect of the utility model is first reflected in its high flexibility and adaptability. The design of the extension pipe allows the landfill height of the poured concrete to be adjusted according to the actual construction scene, thereby adapting to different construction standards. This design not only improves the versatility of the equipment, but also greatly reduces the complexity of construction in different scenes. At the same time, the detachable installation method is also convenient for transportation and storage, effectively saving construction costs and time.
[0016] 3. The purpose of the utility model is to prevent foreign objects from entering the enclosed space during the backfilling process. On the one hand, by providing a cover on the casting pipe or the extension pipe and providing a handle on the cover, it is convenient for construction personnel to operate, effectively preventing backfill soil or other foreign objects from entering the enclosed space, thereby avoiding these foreign objects from affecting the overall structural strength formed by the post-casting. On the other hand, by providing a first sealing pad layer and a second sealing pad layer, not only the sealing of the sealed space is guaranteed, but also the elasticity of the poured concrete is taken into consideration, further enhancing the stability and safety of the structure. In addition, by providing a gasket between the first sealing pad layer and the tension beams at both ends, the pre-tightening force of the tension screw on the first sealing pad layer is increased, further improving the sealing effect.
[0017] 4. The advanced closure device designed by the utility model can optimize the construction process, reduce the time and manpower required for the construction of the post-casting strip, thereby reducing the construction cost of the project, responding to the national material-saving construction concept, with strong versatility and achieving good construction results. In addition, the device is also highly versatile and reusable, further reducing the overall cost of the construction project.
[0018] 5. The advanced closure device designed by the utility model ensures the quality of the post-casting strip construction through precise construction methods and strict quality control measures. This not only improves the overall structural strength of the building, but also enhances its service life and safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an assembly diagram of the advanced sealing device in the utility model;
[0020] Figure 2 This is a structural diagram of the advanced sealing device in the utility model;
[0021] Figure 3 This is a structural diagram of the tension beam at the post-casting zone of the middle door type rigid frame structure of the utility model;
[0022] Figure 4 It is a schematic diagram of the on-site installation of the front sealing device in the utility model;
[0023] Figure 5 This is a construction effect diagram of the advanced sealing device in the utility model.
[0024] In the figure: the top form is 1, the side form is 2, the tension screw is 3, the casting pipe is 4, the extension pipe is 5, the bolts and nuts are 6, the cover is 7, the first connecting flange is 8, the second connecting flange is 9, the handle is 10, the gasket is 11, the first sealing gasket layer is 12, the second sealing gasket layer is 13, the inclined support plate is 14, the tension beam is 15, and the reserved hole is 16.
[0025] The top mold includes a top plate 101 , a clamping plate 102 , and a first mounting hole 103 ; the side mold includes a side plate 201 , and a second mounting hole 202 . DETAILED DESCRIPTION
[0026] In order to further illustrate the technical solution of the utility model, the following Figures 1 to 5 According to the on-site construction situation, we further illustrate the utility model through three embodiments. Embodiment 1
[0027] As attached Figures 1 to 5 As shown, an advance closing device for a tension beam at a post-casting strip of a portal frame structure comprises a top form 1 and two side forms 2, wherein the top form 1 comprises a top plate 101 and two clamping plates 102 vertically fixed on its end faces, at both ends of each clamping plate 102 are respectively provided with at least one first mounting hole 103, one end of the casting pipe 4 is fixed on the top plate 101; the side form 2 comprises a side plate 201, at both ends of the side plate 201 are respectively provided with second mounting holes 202 corresponding to the reserved holes 16, the top form 1 and the two side forms 2 are fixed between two sections of tension beams 15 using tension screws 3 passing through the first mounting holes 103 and the second mounting holes 202 and the reserved holes 16 to achieve assembly connection. The two side molds 2 are respectively attached to the front and rear sides of the two sections of the tension beam 15. The top mold 1 is fixed between the tops of the two side molds 2 by the tension screws 3 to enclose a closed space of the two sections of the tension beam 15. A casting pipe 4 is connected to the top mold 1. The casting pipe 4 is connected to the top mold 1 by a plurality of inclined support plates 14 to ensure the stability between the casting pipe 4 and the top mold 1. Concrete is poured into the closed space through the casting pipe 4 to cast and connect the two sections of the tension beam 15. Embodiment 2
[0028] In the above embodiment, as shown in the attached Figure 1 and 2As shown, we have detachably installed an extension pipe 5 on the pouring pipe 4. The specific implementation is as follows: a first connection flange 8 is fixed to the other end of the pouring pipe 4, and a second connection flange 9 is fixed to one end of the extension pipe 5. The first connection flange 8 and the second connection flange 9 are connected by multiple sets of bolts and nuts 6 to assemble the pouring pipe 4 and the extension pipe 5. The extension pipe 5 can increase the landfill height of the poured concrete and adapt to the construction standards of different scenes. Embodiment 3
[0029] In the above embodiment, as shown in the attached Figure 1 and 2 As shown, in order to prevent backfill soil or other foreign matter from entering the enclosed space during the backfilling process and affecting the overall structural strength of the two sections of tension beams formed by the subsequent pouring, we take two measures: (i) a cover 7 is provided on the other end of the pouring pipe 4 or the extension pipe 5, and a handle 10 is provided on the cover 7. On-site construction personnel cover the cover 7 on the pouring pipe 4 or the extension pipe 5 through the handle 10 to prevent backfill soil from entering the enclosed space during the backfilling process. (ii) a first sealing gasket layer 12 is provided in the contact area between the side mold 2 and the two sections of tension beams 15, and a second sealing gasket layer 13 is provided in the contact area between the top mold 1 and the two sections of tension beams 15. The first sealing gasket layer 12 and the second sealing gasket layer 13 are used together to ensure the sealing of the sealed space and the elasticity of the poured concrete.
[0030] In this embodiment, a gasket 11 is provided between the first sealing cushion layer 12 and the tension beams 15 at both ends, and the gasket 11 is used to increase the pre-tightening force of the tension screw 3 on the first sealing cushion layer 12 .
[0031] Based on the above three embodiments, combined with the template making process and construction technology, we explain the implementation plan in detail:
[0032] 1. Template making process:
[0033] (1) Use a 5mm thick steel plate and cut it into a top plate and two side plates. The size of the top plate is (length of post-casting strip + 2*200mm) * (width of post-casting strip + 2*200mm), and the size of the side plate is (length of post-casting strip + 2*200mm) * height of post-casting strip.
[0034] (2) The top plate is bent on both sides to form a card plate, and a through hole with a diameter of 100 mm is opened in the center. A steel pipe with a diameter of 100 mm is welded at the through hole as a pouring pipe. Whether to add an extension pipe design is determined according to the requirements of the subsequent backfill soil construction. The length of the pouring pipe is 100 mm higher than the backfill soil in the center of the indoor room and lower than the finished surface of the indoor floor.
[0035] (3) One hole is opened on each side plate at a distance of 100 mm from the outer edge and the upper and lower edges, for a total of 4 holes with a hole diameter of Φ16.
[0036] 2. Construction technology:
[0037] (1) When pouring the foundation and the tie beam, reserved holes are set on both sides of the post-cast strip. One reserved hole is set 100 mm away from the edge of the post-cast strip and the upper and lower sides of the tie beam, for a total of 4 reserved holes with a hole diameter of Φ16.
[0038] (2) After the concrete tie beams on both sides of the post-cast joint are poured, the loose concrete in the post-cast joint shall be removed.
[0039] (3) Place the side panels on both sides of the post-casting strip, with the top panel buckling the side panels and the two side clamps clamped between the side panels. At the same time, place the first sealing pad layer between the two ends of the two side panels, overlapping and contacting with the two sections of the tension beams. Place the gasket and the second sealing pad layer on the inner side of the side panels in turn, align the installation holes of the top panel and the side panels with the reserved holes of the tension beams one by one, and insert the Φ14 tension screw into the reserved hole of the tension beam, with the exposed length of the screw being 50mm. Install the gasket and nut outside the screw, and tighten the nut.
[0040] (4) Finally, apply a layer of anti-rust paint on the inside and bottom of the steel waste pool; apply a layer of anti-rust paint and a layer of topcoat on the outside.
[0041] (5) After the installation of the advance sealing device is completed, the backfilling of the center of the room and other subsequent work can be started. After the post-casting zone meets the design construction requirements, concrete is poured from a steel pipe with a diameter of 100 mm. While pouring concrete, a concrete vibrator is inserted from the reserved hole to vibrate the concrete until the concrete fills the steel pipe.
[0042] The above shows and describes the main features and advantages of the utility model. For those skilled in the art, it is obvious that the specific implementation of the utility model is not limited to the details of the above exemplary embodiments, and the creative ideas and design ideas of the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model, which should be equivalent to the protection scope disclosed in the technical solution of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.
[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An advance closing device for the tension beam at the post-casting zone of a portal frame structure, characterized in that: The invention comprises a top form (1) and two side forms (2), wherein the two side forms (2) are fixed between two sections of tension beams (15) by means of tension screws (3) passing through reserved holes (16), and the two side forms are respectively attached to the front and rear sides of the two sections of tension beams (15), and the top form (1) is fixed between the tops of the two side forms (2) by means of tension screws (3), thereby enclosing a closed space of the two sections of tension beams (15), and a pouring pipe (4) is provided on the top form (1) for connection, and concrete is poured into the closed space through the pouring pipe (4), thereby pouring and connecting the two sections of tension beams (15).
2. The advance closing device for the tension beam at the post-casting zone of the portal frame structure according to claim 1 is characterized in that: The top mold (1) comprises a top plate (101) and two clamping plates (102) vertically fixed on the end surfaces thereof, at least one first mounting hole (103) is respectively arranged at both ends of each clamping plate (102), and one end of the pouring pipe (4) is fixed on the top plate (101); the side mold (2) comprises a side plate (201), at both ends of the side plate (201) are respectively arranged second mounting holes (202) corresponding to the reserved holes (16), the first mounting hole (103) and the second mounting hole (202) are both used for the tensioning screw (3) to pass through to achieve assembly connection.
3. The advance closing device for the tension beam at the post-casting zone of a portal frame structure according to claim 1 or 2, characterized in that: An extension pipe (5) is detachably mounted on the pouring pipe (4), and the extension pipe (5) is used to increase the landfill height of the poured concrete.
4. The advance closing device for the tension beam at the post-casting zone of the portal frame structure according to claim 3 is characterized by: A first connecting flange (8) is fixed to the other end of the casting pipe (4), and a second connecting flange (9) is fixed to one end of the extension pipe (5); the first connecting flange (8) and the second connecting flange (9) are connected by a plurality of sets of bolts and nuts (6) to assemble the casting pipe (4) and the extension pipe (5).
5. The advance closing device for the tension beam at the post-casting zone of the portal frame structure according to claim 4 is characterized in that: A sealing cover (7) is provided on the other end of the pouring pipe (4) or the extension pipe (5), and the sealing cover (7) is used to prevent backfill soil from entering the closed space during the backfilling process.
6. The advance closing device for the tension beam at the post-casting zone of the portal frame structure according to claim 5 is characterized in that: A handle (10) is provided on the cover (7), and the handle (10) facilitates on-site construction workers to pick up the cover (7).
7. A pre-closing device for a tension beam at a post-casting zone of a portal frame structure according to any one of claims 1 to 2 or any one of claims 4 to 6, characterized in that: A first sealing pad layer (12) is provided in the contact area between the side form (2) and the two sections of the tension beam (15), and a second sealing pad layer (13) is provided in the contact area between the top form (1) and the two sections of the tension beam (15), wherein the first sealing pad layer (12) and the second sealing pad layer (13) are used together to ensure the sealing performance of the sealed space and the elasticity of the poured concrete.
8. The advance closing device for the tension beam at the post-casting zone of the portal frame structure according to claim 7 is characterized in that: A gasket (11) is provided between the first sealing cushion layer (12) and the tension beams (15) at both ends, and the gasket (11) is used to increase the pre-tightening force of the tension screw (3) on the first sealing cushion layer (12).
9. The advance closing device for the tension beam at the post-casting zone of a portal frame structure according to any one of claims 1 to 2 or any one of claims 4 to 6 or 8, characterized in that: The pouring pipe (4) is connected to the top mold (1) via a plurality of inclined support plates (14), so as to ensure the stability between the pouring pipe (4) and the top mold (1).