Detachable Stiffening Skeleton for High Pier and Construction Method

Abstract

The present application discloses a detachable stiffening skeleton for high piers and a construction method, including: arranging a plurality of first support members, the first support members being vertically arranged and distributed in a frame shape; a longitudinal connecting member is arranged at the upper end of the first support member, and a transverse connecting member is arranged on the longitudinal connecting member. The longitudinal connecting members at the upper ends of two adjacent first support members are connected by a transverse fixing member, and the transverse connecting members at the upper ends of two adjacent first support members are connected by a longitudinal fixing member; positioning holes for steel bar limiting are arranged on both the transverse fixing member and the longitudinal fixing member; the first support member includes a first embedded part and a first support part, the lower end of the first embedded part is used for being embedded in concrete, and the upper end is detachably connected to the first support part, and both the longitudinal connecting member and the transverse connecting member are fixed to the upper end of the first support part. The present application solves the problem in the related art that a large amount of stiffening skeletons need to be poured for the construction of high pier steel bars, resulting in serious waste of steel.

Description

Technical Field

[0001] This application relates to the technical field of high pier steel bar construction. Specifically, it relates to a detachable stiffening skeleton for high piers and a construction method thereof. Background Technique

[0002] With the continuous development of the transportation industry, more and more bridges are being built in China, and the number of ultra-high pier bridges across mountains and valleys is also increasing. Steel bar positioning in the construction of the pier body of ultra-high bridges is a very important process. In traditional construction, angle steel is mostly used as the stiffening skeleton and is poured into the concrete together with the steel bars.

[0003] A certain project is a cable-stayed bridge with low towers. The six main piers have different heights from 116m to 159m. The piers are of equal width of 18.5m in the transverse direction of the bridge, and are widened from the top of the pier by 8.0m in the longitudinal direction of the bridge according to a slope of 80:1 towards the bottom of the pier. The total designed engineering quantity of the stiffening skeleton is 2234.8t. If the traditional stiffening skeleton is used for construction, a large amount of steel will be wasted.

[0004] In view of the problem in the related technology that a large amount of stiffening skeletons need to be poured for high pier steel bar construction, resulting in serious waste of steel, no effective solution has been proposed yet. Summary of the Invention

[0005] The main purpose of this application is to provide a detachable stiffening skeleton for high piers and a construction method thereof, so as to solve the problem in the related technology that a large amount of stiffening skeletons need to be poured for high pier steel bar construction, resulting in serious waste of steel.

[0006] To achieve the above object, this application provides a detachable stiffening skeleton for high piers, which includes: a plurality of first support members, the first support members are vertically arranged and distributed in a frame shape; a longitudinal connecting member is arranged at the upper end of the first support member, a transverse connecting member is arranged on the longitudinal connecting member, the longitudinal connecting members at the upper ends of adjacent two first support members are connected by a transverse fixing member, and the transverse connecting members at the upper ends of adjacent two first support members are connected by a longitudinal fixing member; positioning holes for steel bar limitation are arranged on both the transverse fixing member and the longitudinal fixing member; the first support member includes a first embedded part and a first support part, the lower end of the first embedded part is used for being embedded in the concrete, and the upper end is detachably connected to the first support part, and both the longitudinal connecting member and the transverse connecting member are fixed to the upper end of the first support part.

[0007] Furthermore, two transverse fixing members are arranged between adjacent first support parts, and the transverse connecting member is located between the two transverse fixing members; three longitudinal fixing members are arranged between adjacent first support parts.

[0008] Further, six first support members are provided and are symmetrically distributed in groups of three, and six longitudinal connecting members are provided and are respectively fixed to the upper ends of the first support members one by one; six transverse connecting members are provided and are respectively fixed to the upper ends of the longitudinal connecting members one by one.

[0009] Further, a second support member is further included and is disposed between adjacent first support members. The second support member is vertically arranged, and the upper end of the second support member is used to support the corresponding transverse fixing member and longitudinal fixing member.

[0010] Further, the second support member includes a second embedded part and a second support part. The lower end of the second embedded part is used to be embedded in the concrete, and the upper end is detachably connected to the second support part.

[0011] Further, the upper ends of the first support members are respectively fixedly connected to the longitudinal connecting members and the transverse connecting members through connecting steel plates and connecting brackets;

[0012] Both sides of the transverse fixing member are fixedly connected to the upper end of the longitudinal connecting member through a first limiting structure, and both sides of the longitudinal fixing member are fixedly connected to the upper end of the transverse connecting member through a second limiting structure.

[0013] Further, the first support member and the second support member are provided as I36 steel I-beams, and the first embedded part and the first support part are strengthened and bolted through a steel plate; the second embedded part and the second support part are strengthened and bolted through a steel plate; the longitudinal connecting member and the transverse connecting member are provided as I20 steel I-beams, the transverse fixing member and the longitudinal fixing member are provided as [20 channel steels, and the positioning holes are opened on the channel steels.

[0014] Further, the connecting steel plate is arranged in an L shape, its upper end is bolted to the longitudinal connecting member, and its lower end is bolted to the first support member. The upper end of the connecting bracket is welded to the transverse connecting member, and the lower end is welded to the first support member.

[0015] According to another aspect of the present application, a construction method for realizing a detachable stiffening skeleton of a high pier is provided, including the following steps:

[0016] (1) After the casting of the bearing platform is completed, the first embedded parts of a plurality of first support members are vertically embedded into the bearing platform concrete, the upper ends of the first embedded parts extend out of the upper end surface of the bearing platform, and the first support parts of the first support members are vertically and detachably fixed to the upper ends of the first embedded parts, so that a plurality of first support members are distributed in a frame shape;

[0017] (2) A second support member is arranged between adjacent first support members, the second embedded part of the second support member is embedded into the bearing platform concrete, and the upper end of the second embedded part detachably fixes the second support member;

[0018] (3) Fix the longitudinal connecting piece and the transverse connecting piece at the upper end of the first support piece, and fix the distribution beam at the upper end of the second support piece;

[0019] (4) Install transverse fixing pieces on the longitudinal connecting pieces at the upper ends of two adjacent first support pieces for connection, and install longitudinal fixing pieces on the transverse connecting pieces at the upper ends of two adjacent first support pieces for connection;

[0020] (5) Fix the parts of the transverse fixing piece and the longitudinal fixing piece that cross over the second support piece on the corresponding distribution beam;

[0021] (6) Open positioning holes for steel bar limiting on the transverse fixing piece and the longitudinal fixing piece.

[0022] The first embedded part and the second embedded part are accurately positioned during embedding. The accurate positioning includes the following steps:

[0023] (a) Calculate the plane position deviation according to the inclination and height of the stiffening skeleton, and conduct preliminary positioning by using the ruler measurement method;

[0024] (b) Conduct temporary fixation, use a total station for measurement, and review the accurate position of the embedded I-beam. The accurate positioning should select an appropriate time period to avoid deviations caused by factors such as temperature difference and load;

[0025] (c) Weld the first embedded part and the second embedded part with steel bars to prevent displacement during the concrete pouring process.

[0026] Furthermore, the upper end of the first support piece is fixedly connected to the longitudinal connecting piece and the transverse connecting piece respectively through a connecting steel plate and a connecting bracket; the transverse fixing piece and the longitudinal fixing piece are measured and reviewed by using a total station during installation. If the position is found to be inconsistent, adjust the connecting steel plate and the connecting bracket to meet the requirements.

[0027] In the embodiment of the present application, by providing a plurality of first support members, the first support members are vertically arranged and distributed in a frame shape; a longitudinal connecting member is provided at the upper end of the first support member, a transverse connecting member is provided on the longitudinal connecting member, the longitudinal connecting members at the upper ends of two adjacent first support members are connected by a transverse fixing member, and the transverse connecting members at the upper ends of two adjacent first support members are connected by a longitudinal fixing member; positioning holes for steel bar limiting are provided on both the transverse fixing member and the longitudinal fixing member; the first support member includes a first embedded part and a first support part, the lower end of the first embedded part is used for being embedded in concrete, and the upper end is detachably connected to the first support part, and the longitudinal connecting member and the transverse connecting member are both fixed to the upper end of the first support part, achieving the purpose of detaching all the support structures above the first embedded part after the construction of the high pier steel bars is completed, thereby realizing the technical effect of greatly reducing the waste of steel in the construction of high pier steel bars, and further solving the problem in the related art that a large amount of stiffening skeletons need to be poured for the construction of high pier steel bars, resulting in serious waste of steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings forming a part of this application are used to provide a further understanding of this application, making other features, objects, and advantages of this application more apparent. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0029] Figure 1 is a schematic top view structure diagram according to an embodiment of the present application;

[0030] Figure 2 is another schematic top view structure diagram according to an embodiment of the present application;

[0031] Figure 3 is Figure 1 the cross-sectional structure diagram of A-A in

[0032] Figure 4 is Figure 1 the cross-sectional structure diagram of B-B in

[0033] Wherein, 1 is the first support member, 101 is the embedded part, 102 is the support part, 2 is the transverse connecting member, 3 is the longitudinal connecting member, 4 is the transverse fixing member, 5 is the second support member, 6 is the longitudinal fixing member, 7 is the connecting bracket, 8 is the limiting steel bar, and 9 is the connecting steel plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0035] It should be noted that the terms "first", "second", etc. in the specification, claims and 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 this application described herein.

[0036] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0037] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above 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 this application can be understood according to specific circumstances.

[0038] In addition, terms such as "arranged", "provided with", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" 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 be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In addition, the meaning of the term "plurality" should be two or more.

[0040] 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 the embodiments to detail this application.

[0041] Such as Figure 1As shown in the figure, an embodiment of the present application provides a detachable stiffening skeleton for high piers. The detachable stiffening skeleton for high piers includes: a plurality of first support members 1, the first support members 1 are arranged vertically and distributed in a square shape; a longitudinal connecting member 3 is arranged at the upper end of the first support member 1, a transverse connecting member 2 is arranged on the longitudinal connecting member 3, the longitudinal connecting members 3 at the upper ends of two adjacent first support members 1 are connected by a transverse fixing member 4, and the transverse connecting members 2 at the upper ends of two adjacent first support members 1 are connected by a longitudinal fixing member 6; positioning holes for limiting steel bars are arranged on both the transverse fixing member 4 and the longitudinal fixing member 6; the first support member 1 includes a first embedded part 101 and a first support part 102, the lower end of the first embedded part 101 is used for being embedded in concrete, and the upper end is detachably connected to the first support part 102, and both the longitudinal connecting member 3 and the transverse connecting member 2 are fixed to the upper end of the first support part 102.

[0042] In this embodiment, six first support members 1 are provided and are symmetrically distributed in groups of three to form a rectangle. Six longitudinal connecting members 3 are provided and are respectively fixed to the upper ends of the first support members 1; six transverse connecting members 2 are provided and are respectively fixed to the upper ends of the longitudinal connecting members 3. The transverse fixing member 4 serves as the short side of the rectangle, and the longitudinal fixing member 6 serves as the long side of the rectangle. There are three short sides between the two long sides as shown in Figure 1 the figure. The first support member 1 is jointly composed of an embedded part 101 and a support part 102. The length of the embedded part 101 is 1 m, 0.65 m of it is buried in the concrete, and 0.35 m extends out of the concrete. The length of the support part 102 is 6 m. The support part 102 is detachably connected to the extended end of the embedded part 101, and the longitudinal connecting member 3, the transverse connecting member 2, the longitudinal fixing member 6 and the transverse fixing member 4 are all fixed to the upper end of the support part 102. Therefore, after the steel bar construction is completed, the support part 102 and other structures at the upper end of the support part 102 can be removed and can be put into use next time. Compared with the conventional solution in which all angle steels are poured into the concrete and are not detachable, the present application saves a large amount of steel and further reduces the construction cost. The positioning holes opened on the transverse fixing member 4 and the longitudinal fixing member 6 are used to limit the steel bars, thereby improving the installation accuracy of the steel bars. After the steel bars of the pier body are tied, the bolted parts of the stiffening skeleton are removed and placed at a designated location for reuse next time.

[0043] Furthermore, two transverse fixing members 4 are arranged between adjacent first support parts 102, and the transverse connecting member 2 is located between the two transverse fixing members 4; three longitudinal fixing members 6 are arranged between adjacent first support parts 102 to meet the requirements of high pier steel bar construction.

[0044] Further, when the spans of the transverse fixing member 4 and the longitudinal fixing member 6 are relatively large, a support needs to be provided in the middle thereof. Since the stiffening skeleton further includes a second support member 5 disposed between adjacent first support members 1, the second support member 5 is vertically disposed, and the upper end of the second support member 5 is used to support the corresponding transverse fixing member 4 and longitudinal fixing member 6. The second support members 5 are distributed on the long side and the short side of the skeleton, and the length of the second support member 5 located on the long side is greater than that of the second support member 5 located on the short side. A distribution beam is fixed to its upper end, so as to realize the support for the transverse fixing member 4 and the longitudinal fixing member 6. The second support member 5 includes a second embedded part 101 and a second support part 102. The lower end of the second embedded part 101 is used to be embedded in the concrete, and the upper end is detachably connected to the second support part 102.

[0045] Further, the upper ends of the first support members 1 are respectively fixedly connected to the longitudinal connecting member 3 and the transverse connecting member 2 through a connecting steel plate 9 and a connecting bracket 7; both sides of the transverse fixing member 4 are fixedly connected to the upper end of the longitudinal connecting member 3 through a first limiting structure, and both sides of the longitudinal fixing member 6 are fixedly connected to the upper end of the transverse connecting member 2 through a second limiting structure.

[0046] Specifically, it should be noted that the first support member 1 realizes a stable connection with the longitudinal connecting member 3 through the connecting steel plate 9, and realizes a stable connection with the transverse connecting member 2 through the connecting bracket 7. The connecting brackets 7 are distributed on the four sides of the first support member 1. The transverse fixing member 4 is accurately positioned through the first limiting structure, and the longitudinal fixing member 6 is accurately positioned through the second limiting structure, so as to prevent the transverse fixing member 4 and the longitudinal fixing member 6 from generating displacement during the construction process. The structures of the first limiting structure and the second limiting structure are the same, and both include a limiting bracket fixed on both sides of the corresponding transverse fixing member 4 and longitudinal fixing member 6 and a limiting steel bar 8 fixed at the upper end. The limiting steel bar 8 is welded to the upper end of the limiting bracket.

[0047] The first support member 1 and the second support member 5 are set as I36 steel I-beams, and are strengthened and bolted through a steel plate between the first embedded part 101 and the first support part 102; the second embedded part 101 and the second support part 102 are strengthened and bolted through a steel plate; the longitudinal connecting member 3 and the transverse connecting member 2 are set as I20 steel I-beams, the transverse fixing member 4 and the longitudinal fixing member 6 are set as [20 channel steels, positioning holes are opened on the channel steels, and the distribution beam located at the upper end of the second support member 5 is also set as an I20 steel I-beam.

[0048] Further, the connecting steel plate 9 is L-shaped, its upper end is bolted to the longitudinal connecting member 3, and its lower end is bolted to the first support member 1. The upper end of the connecting bracket 7 is welded to the transverse connecting member 2, and the lower end is welded to the first support member 1.

[0049] According to another aspect of the present application, a construction method for realizing a detachable stiffening skeleton of a high pier is provided, including the following steps:

[0050] (1) After the cap is cast, the first embedded parts 101 of the plurality of first support members 1 are vertically embedded in the cap concrete, the upper end of the first embedded part 101 extends out of the upper end surface of the cap, and the first support part 102 of the first support member 1 is vertically detachably fixed to the upper end of the first embedded part 101, so that the plurality of first support members 1 are distributed in a frame shape;

[0051] (2) a second support member 5 is arranged between adjacent first support members 1, and a second embedded portion 101 of the second support member 5 is embedded in the cap concrete, and the upper end of the second embedded portion 101 can be detachably fixed to the second support member 5;

[0052] (3) The longitudinal connecting member 3 and the transverse connecting member 2 are fixed to the upper end of the first supporting member 1, and the distribution beam is fixed to the upper end of the second supporting member 5;

[0053] (4) The longitudinal connecting members 3 at the upper ends of two adjacent first supporting members 1 are connected by installing the transverse fixing member 4, and the transverse connecting members 2 at the upper ends of two adjacent first supporting members 1 are connected by installing the longitudinal fixing member 6;

[0054] (5) Fix the transverse fixing member 4 and the longitudinal fixing member 6 across the second supporting member 5 to the corresponding distribution beam;

[0055] (6) Positioning holes for limiting the position of the steel bars are provided on the transverse fixing member 4 and the longitudinal fixing member 6.

[0056] In this embodiment, after the pouring of the pedestal is completed, the rigid skeleton is embedded, and a 0.65m long I36 I-beam is embedded, with 0.35m exposed for external rigid skeleton connection. The embedded rigid skeleton needs to be precisely positioned, and steel bars are used for welding and limiting during construction to avoid displacement during concrete pouring. When the rigid skeleton is installed on site, a tower crane is used to lift the detachable skeleton part into place, and the detachable part of the skeleton is bolted to the embedded part 101. After the fixing is completed, the upper layer [20 channel steel is installed, and a limiting device is used to limit and fix it. The limiting device is the connecting steel plate 9 and the connecting corbel 7. In order to facilitate rapid positioning and installation on site, corresponding matching parts are set on the vertical bars of two adjacent joints when the skeleton is pre-assembled in the back field.

[0057] The first embedded part 101 and the second embedded part 101 are precisely positioned during embedding, and the precise positioning includes the following steps:

[0058] (a) Calculate the plane position deviation based on the inclination and height of the rigid frame, and use the ruler method to perform preliminary positioning;

[0059] (b) Temporary fixation, measurement with total station, and verification of the precise position of the embedded steel. The precise positioning should be carried out at an appropriate time to avoid deviations caused by temperature difference, load, etc.;

[0060] (c) Weld the first embedded part 101 and the second embedded part 101 with steel bars to prevent displacement during concrete pouring.

[0061] Furthermore, the upper end of the first support member 1 is fixedly connected to the longitudinal connecting member 3 and the transverse connecting member 2 through the connecting steel plate 9 and the connecting bracket 7 respectively; the total station instrument is used for measurement and verification during the installation of the transverse fixing member 4 and the longitudinal fixing member 6. If the position does not meet the requirements, adjust the connecting steel plate 9 and the connecting bracket 7 to meet the requirements.

[0062] 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 in the protection scope of the present application.

Claims

1. A detachable stiffening skeleton for high piers, Characterized in that, Comprising: Multiple first support members, the first support members are arranged vertically and distributed in a frame shape; A longitudinal connecting member is arranged at the upper end of the first support member, a transverse connecting member is arranged on the longitudinal connecting member, the longitudinal connecting members at the upper ends of adjacent two first support members are connected by a transverse fixing member, and the transverse connecting members at the upper ends of adjacent two first support members are connected by a longitudinal fixing member; Positioning holes for steel bar limiting are arranged on both the transverse fixing member and the longitudinal fixing member; The first support member includes a first embedded part and a first support part, the lower end of the first embedded part is used for being embedded in concrete, and the upper end is detachably connected to the first support part, and both the longitudinal connecting member and the transverse connecting member are fixed to the upper end of the first support part; Two transverse fixing members are arranged between adjacent first support parts, and the transverse connecting member is located between the two transverse fixing members; three longitudinal fixing members are arranged between adjacent first support parts; Six first support members are arranged and symmetrically distributed in groups of three, and six longitudinal connecting members are arranged and fixedly connected to the upper ends of the first support members one by one; Six transverse connecting members are arranged and fixedly connected to the upper ends of the longitudinal connecting members one by one; It further includes a second support member arranged between adjacent first support members, the second support member is arranged vertically, and the upper end of the second support member is used for supporting the corresponding transverse fixing member and longitudinal fixing member; The second support member includes a second embedded part and a second support part, the lower end of the second embedded part is used for being embedded in concrete, and the upper end is detachably connected to the second support part; The upper ends of the first support members are respectively fixedly connected to the longitudinal connecting member and the transverse connecting member through connecting steel plates and connecting brackets; Both sides of the transverse fixing member are fixedly connected to the upper end of the longitudinal connecting member through a first limiting structure, and both sides of the longitudinal fixing member are fixedly connected to the upper end of the transverse connecting member through a second limiting structure; The connecting brackets are distributed on four sides of the first support member.

2. The detachable stiffening skeleton for high piers according to claim 1, Characterized in that, The first support member and the second support member are set as I36 steel I-beams, the first embedded part and the first support part are strengthened by steel plates and bolted, and the second embedded part and the second support part are strengthened by steel plates and bolted; The longitudinal connecting member and the transverse connecting member are set as I20 steel I-beams, the transverse fixing member and the longitudinal fixing member are set as I20 steel channels, and the positioning holes are opened on the channels.

3. A construction method for realizing the detachable stiffening skeleton for high piers according to any one of claims 1 to 2, Characterized in that, Comprising the following steps: (1) After the casting of the bearing platform is completed, vertically embed the first embedded parts of multiple first support members into the bearing platform concrete, the upper ends of the first embedded parts extend out of the upper end surface of the bearing platform, and vertically and detachably fix the first support parts of the first support members to the upper ends of the first embedded parts, so that multiple first support members are distributed in a frame shape; (2) A second support member is arranged between adjacent first support members, and a second embedded part of the second support member is embedded into the pile cap concrete. The upper end of the second embedded part is detachably fixed to the second support member; (3) A longitudinal connecting member and a transverse connecting member are fixed to the upper end of the first support member, and a distribution beam is fixed to the upper end of the second support member; (4) Transverse fixing members are installed and connected to the longitudinal connecting members at the upper ends of two adjacent first support members, and longitudinal fixing members are installed and connected to the transverse connecting members at the upper ends of two adjacent first support members; (5) The parts of the transverse fixing member and the longitudinal fixing member that cross over the second support member are fixed to the corresponding distribution beams; (6) Positioning holes for steel bar limitation are formed in the transverse fixing member and the longitudinal fixing member.

4. The construction method of the high pier detachable stiffening skeleton according to claim 3, characterized in that the first embedded part and the second embedded part are accurately positioned during embedding, and the accurate positioning includes the following steps: (a) Calculate the plane position deviation according to the inclination and height of the stiffening skeleton, and perform preliminary positioning by using the ruler measurement method; (b) Perform temporary fixation, measure with a total station, and review the accurate position of the embedded steel section. The appropriate time period should be selected for accurate positioning to avoid deviations caused by temperature difference and load factors; (c) Weld the first embedded part and the second embedded part with steel bars to prevent displacement during concrete pouring.

5. The construction method of the high pier detachable stiffening skeleton according to claim 4, characterized in that the upper ends of the first support members are respectively fixedly connected to the longitudinal connecting member and the transverse connecting member through connecting steel plates and connecting brackets; The transverse fixing member and the longitudinal fixing member are measured and reviewed with a total station during installation. If the position does not conform, adjust the connecting steel plate and the connecting bracket to meet the requirements.

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