Structure for reducing slab staggering of cast-in-place web bottom plate

Abstract

The utility model relates to the technical field of cast-in-place beams, in particular to a structure for reducing slab staggering of a web bottom plate of a cast-in-place beam. The structure for reducing slab staggering of the cast-in-place web bottom plate comprises a bottom plate, a first web fixedly installed on one side of the bottom plate, a second web fixedly installed on the other side of the bottom plate and a top plate fixedly connected with the top of the first web and the top of the second web. Cushion blocks are installed on the front edges of the chamfering positions of the first web and the second web. The technical problem that due to the fact that square timber is fixed at the chamfering position, slab staggering is likely to be caused is solved.

Description

Technical Field

[0001] This application relates to the technical field of cast-in-place beams, and more particularly, to a structure for reducing the offset between the web and bottom slab of a cast-in-place beam. Background Art

[0002] In recent years, with the continuous development of the transportation construction industry, more and more bridges have been built in China, and the construction of cast-in-place beams has increased day by day. Ensuring the thickness of the bottom slab of cast-in-place beams is a very important process. In traditional construction, square timbers are mostly used to fix the chamfer position, resulting in serious offset. For example: In a certain project with 2 continuous cast-in-place beams, the web height is 2350 mm, the bottom slab thickness is 220 mm, and it is difficult to control the connection part between the bottom slab and the web, resulting in slow construction progress and difficulty in construction.

[0003] Regarding the problem that the fixation of square timbers at the chamfer position in the related art easily leads to offset, no effective solution has been proposed yet. Summary of the Invention

[0004] The main purpose of this application is to provide a structure for reducing the offset between the web and bottom slab of a cast-in-place beam to solve the problem that the fixation of square timbers at the chamfer position easily leads to offset.

[0005] To achieve the above purpose, this application provides a structure for reducing the offset between the web and bottom slab of a cast-in-place beam.

[0006] The structure for reducing the offset between the web and bottom slab of a cast-in-place beam according to this application includes: a bottom slab, a first web fixedly installed on one side of the bottom slab, a second web fixedly installed on the other side of the bottom slab, and a top slab fixedly connected to the tops of the first web and the second web;

[0007] Pads are installed at the front edges of the chamfer positions of the first web and the second web.

[0008] Furthermore, one pad is installed every one meter along the length direction of the bottom slab.

[0009] Furthermore, the pads are high-strength and high-rigidity pads.

[0010] Furthermore, the cross-section of the pad is an inclined stepped shape.

[0011] Furthermore, the inclination is provided between two adjacent steps.

[0012] Furthermore, an anti-slip pad is installed on the pad.

[0013] Furthermore, an anti-slip groove is provided at the connection between the pad and the anti-slip pad.

[0014] Furthermore, a number of fixing holes are provided on the surface of the pad.

[0015] Further, the cushion block is a cuboid cushion block.

[0016] Further, the cushion block is a conical cushion block

[0017] In the embodiment of the present application, a method of installing a cushion block at the front edge of the chamfer position of the web is adopted. Through a bottom plate, a first web fixedly installed on one side of the bottom plate, a second web fixedly installed on the other side of the bottom plate, and a top plate fixedly connected to the tops of the first web and the second web; cushion blocks are installed at the front edges of the chamfer positions of the first web and the second web, achieving the purpose of supporting the bottom plate, the first web, and the second web. Thus, while ensuring the thickness of the bottom plate, the technical effect of ensuring the chamfer size is realized, and furthermore, the technical problem of easy step formation caused by the fixation of the square timber at the chamfer position is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objectives, and advantages of the present application more obvious. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a cushion block according to an embodiment of the present application;

[0020] Figure 2 is a schematic structural diagram of the cushion block from another angle according to an embodiment of the present application;

[0021] Figure 3 is a side view of the cushion block according to an embodiment of the present application;

[0022] Figure 4 is a schematic structural diagram of a cuboid cushion block according to an embodiment of the present application;

[0023] Figure 5 is a schematic structural diagram of a conical cushion block according to an embodiment of the present application.

[0024] REFERENCE NUMERALS

[0025] 1. Cushion block; 2. Anti-slip pad; 3. Anti-slip groove; 4. Fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so as to implement the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0029] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above-mentioned terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances.

[0030] In addition, the terms "install", "set", "provided with", "connect", "connected", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can also be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present utility model can be understood according to specific circumstances.

[0031] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application.

[0032] As Figures 1-5As shown in the figure, the present application relates to a structure for reducing the offset between the web and bottom slab of a cast-in-place beam. The structure for reducing the offset between the web and bottom slab of a cast-in-place beam includes: a bottom slab, a first web fixedly installed on one side of the bottom slab, a second web fixedly installed on the other side of the bottom slab, and a top slab fixedly connected to the tops of the first web and the second web, forming an overall framework of the cast-in-place beam; a spacer block 1 is installed at the front edge of the chamfer position of the first web and the second web; by installing a high-strength spacer block 1 at the front edge of the chamfer position of the web, the phenomenon of offset between the web and bottom slab of the cast-in-place beam is effectively avoided, and the flatness and aesthetics of the overall structure are improved.

[0033] In this embodiment, the specific installation method is as follows: Tie the bottom slab steel bars. First, tie the longitudinal steel bars, and then tie the transverse steel bars; after the bottom slab steel bars are tied, tie the web steel bars. The web steel bars are tied perpendicular to the bottom slab steel bars and arranged along the height direction of the beam; during the tying process of the web steel bars, tie the stirrups at the spacing required by the design; the stirrups are distributed along the length direction of the beam to restrain and fix the web steel bars; according to the design requirements, tie the waist steel bars between the web steel bars and the stirrups. The waist steel bars are arranged on the side of the beam and parallel to the longitudinal axis of the beam; after the web steel bars and the stirrups are tied, tie the top slab steel bars. The top slab steel bars are tied longitudinally first and then transversely, and tied at the positions and spacings required by the design; after the steel bar tying is completed, install the bottom slab, the first web, the second web and the top slab in sequence, and install the spacer block 1 at the front edge of the chamfer position between the bottom slab and the web.

[0034] One spacer block 1 is installed every one meter along the length direction of the bottom slab, so as to ensure the consistency of the thickness of the bottom slab.

[0035] The spacer block 1 is a high-strength and high-rigidity spacer block, such as: concrete spacer block, wooden block, steel block, etc., which can withstand large pressure and impact force.

[0036] It can be seen from the above description that in the embodiment of the present application, by adopting the method of installing a high-strength and high-rigidity spacer block 1 at the front edge of the chamfer position of the web, through the bottom slab, the first web fixedly installed on one side of the bottom slab, the second web fixedly installed on the other side of the bottom slab, and the top slab fixedly connected to the tops of the first web and the second web; a spacer block 1 is installed at the front edge of the chamfer position of the first web and the second web, the purpose of supporting the bottom slab and the first web and the second web is achieved, so as to realize the technical effect of ensuring the thickness of the bottom slab while ensuring the chamfer size, and further solve the technical problem of easy offset caused by the fixation of the square timber at the chamfer position.

[0037] Preferably, the cross-section of the spacer block 1 is in an inclined stepped shape; the adjacent two steps are inclined, such a design is convenient for the spacer block 1 to be inserted into the gap at the bottom of the bottom slab, and the insertion depth can be adjusted according to different height requirements, with strong applicability.

[0038] Preferably, an anti-slip pad 2 is installed on the cushion block 1. The anti-slip pad 2 is made of rubber material and is used to play a role in buffering and anti-slip.

[0039] Preferably, an anti-slip groove 3 is provided at the connection between the cushion block 1 and the anti-slip pad 2 for fixing the anti-slip pad 2 and reducing the risk of the anti-slip pad 2 slipping.

[0040] Preferably, a plurality of fixing holes 4 are formed on the surface of the cushion block 1, which is convenient for fixing the cushion block 1 after the installation of the cushion block 1 is completed. Bolts and rivets are used in cooperation with the fixing holes 4 for fixing.

[0041] Preferably, the cushion block 1 is a cuboid cushion block, which has a simple shape and low cost.

[0042] Preferably, the cushion block 1 is a conical cushion block, which has a simple shape and strong applicability.

[0043] As a supplement, a total station is required for measurement and review during the installation of the cushion block 1. If the position does not conform, it should be adjusted immediately, and the total station should be used for real-time tracking until the construction and installation requirements are met. After installing the cushion block 1, the personnel should review the overall linearity of the web chamfer template to ensure smooth linearity and compliance with the protective layer thickness. The cushion block 1 should not affect the normal steel bar binding. The appropriate position should be calculated according to the inclination and height of the chamfer, and after preliminary positioning, it should be temporarily fixed, and then measured with a total station to review the position of the temporary cushion block 1. The precise positioning should be selected at an appropriate time to prevent instrument deviation caused by factors such as temperature difference and strong wind load.

[0044] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A structure for reducing the misalignment of cast-in-place beam web and bottom plate, comprising: A bottom plate, a first web fixedly mounted on one side of the bottom plate, a second web fixedly mounted on the other side of the bottom plate, and a top plate fixedly connected to the tops of the first web and the second web; It is characterized in that pads are installed at the front edges of the chamfered positions of the first web and the second web.

2. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 1 is characterized in that: The cushion blocks are installed every one meter along the length direction of the base plate.

3. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 1, characterized in that: The cushion block is a high-strength and high-rigidity cushion block.

4. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 1, characterized in that: The cross section of the cushion block is in an inclined step shape.

5. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 4 is characterized in that: Two adjacent steps are arranged at an incline.

6. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 5, characterized in that: An anti-skid pad is installed on the cushion block.

7. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 6, characterized in that: An anti-skid groove is provided at the connection between the cushion block and the anti-skid pad.

8. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 7, characterized in that: A plurality of fixing holes are provided on the surface of the cushion block.

9. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 1, characterized in that: The cushion block is a rectangular cushion block.

10. The structure for reducing misalignment of cast-in-place beam web and bottom plate according to claim 1, characterized in that: The cushion block is a conical cushion block.

Images