Construction platform for top arch steel net rack of underground powerhouse

Abstract

The utility model relates to an underground powerhouse top arch steel net rack construction platform. The construction platform for the top arch steel net rack of the underground powerhouse comprises a bridge crane and steel columns. The steel columns are evenly and vertically installed on the two sides of the bridge crane, lintels are connected between the tops of the opposite steel columns, column supports are connected between the adjacent steel columns located at the two ends of the bridge crane in a crossed mode, and beam supports are connected between the adjacent lintels located at the two ends of the bridge crane in a crossed mode. The profile steel purlines are evenly laid and installed on the tops of the lintels, and the platform plate is installed on the tops of the profile steel purlines. According to the device, the construction difficulty is greatly reduced, due to the fact that the size and the weight of the device are reduced, a crane can conduct construction, the construction time is shortened, the construction progress is accelerated, meanwhile, due to the fact that the construction speed is high, the weight is reduced, workers do not need to conduct high-altitude operation for a long time, and the construction safety risk is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy and hydropower engineering, and in particular to a steel grid construction platform for an underground powerhouse top arch. Background Art

[0002] In many water conservancy projects, underground powerhouse arches are typically constructed with steel grid ceilings. This is particularly true in hydropower station cavern complexes, where large construction spans, frequent cross-operation, and high safety risks pose a significant bottleneck and bottleneck to hydropower and water conservancy construction. The steel grid construction platform for underground powerhouse arches is an essential component of underground powerhouse arch construction. Its design and construction methods are crucial for ensuring the quality and safety of the arch construction. It ensures the stability and safety of the construction platform during the erection of the steel grid. Currently, the sliding method is commonly used for underground powerhouse arch ceiling construction in China. However, with the rapid development of my country's hydropower resources and the continuous emergence of underground hydropower station projects, the traditional sliding method is no longer able to meet construction deadlines. The sliding method requires a separate workspace for grid unit assembly, followed by the installation of sliding rails to slide the grid units into position for assembly and fixation. This separate workspace interferes with the construction of other projects in the area, and the sliding process carries high safety risks and slow speed. Any inadvertent sliding can cause deformation of the grid, compromising the quality of the grid installation.

[0003] Therefore, how to optimize the construction process of the top arch steel grid, improve construction efficiency, reduce construction costs, and reduce construction safety risks is crucial and urgent. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the relevant technologies, the present application provides an underground factory building arch steel grid construction platform, which can improve construction efficiency, speed up construction progress and reduce construction risks.

[0005] The present application provides a steel grid construction platform for an underground factory building arch, comprising a bridge crane 1 and steel columns 4; the steel columns 4 are evenly and vertically installed on both sides of the bridge crane 1, and lintels 6 are connected between the tops of the opposite steel columns 4. Column supports 5 are cross-connected between the adjacent steel columns 4 at both ends of the bridge crane 1, and beam supports 7 are cross-connected between the adjacent lintels 6 at both ends of the bridge crane 1. Steel purlins 8 are evenly laid and installed on the tops of the steel purlins 8, and platform plates 9 are installed on the tops of the steel purlins 8.

[0006] Optionally, in some solutions, the steel columns 4 are evenly and vertically installed on both sides of the bridge crane 1 through the steel corbels 2 and the steel plate base 3.

[0007] Optionally, in some schemes, the steel corbel 2 is composed of H-shaped steel, diagonal bracing steel pipe, and stiffening plate. The H-shaped steel is horizontally and evenly fixed on one side of the bridge crane 1. The diagonal bracing steel pipe is obliquely connected between the H-shaped steel and the side plate of the bridge crane 1. The diagonal bracing steel pipe and the H-shaped steel, and the diagonal bracing steel pipe and the side plate of the bridge crane 1 are fixed by stiffening plates. The steel plate base 3 is H-shaped steel, which is horizontally and evenly fixed on the other side of the bridge crane 1 and corresponds to the steel corbel 2.

[0008] The technical solution provided by this application may have the following beneficial effects:

[0009] The construction platform of this application replaces the original full-floor scaffolding by adopting a steel frame structure combined with a bridge crane. At the same time, other parts except the necessary connecting parts are removed. After using this device, the construction difficulty is greatly reduced. Since the size and weight of this device are reduced, a crane can be used for construction, thereby shortening the construction time and speeding up the construction progress. At the same time, due to the faster construction speed and reduced weight, personnel do not need to work at high altitudes for a long time, which greatly reduces the construction safety risk.

[0010] At the same time, the investment in personnel, equipment, and materials is reduced, and the labor intensity of construction workers is lowered. The construction platform of the underground factory arch steel grid is optimized, which reduces the difficulty of the underground factory arch ceiling construction, improves construction efficiency, speeds up construction progress, reduces construction risks, and has a high promotion and application value.

[0011] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0013] Figure 1 This is a vertical layout diagram of the steel frame of the construction platform during application shown in the embodiment of the present application;

[0014] Figure 2 This is a plan view of the steel frame and beam support of the construction platform during application shown in the embodiment of the present application;

[0015] Figure 3 This is a plan view of the support between columns of the construction platform steel frame shown in the embodiment of the present application;

[0016] Figure 4 This is a diagram of the connection structure of the steel frame end of the construction platform during application shown in the embodiment of the present application.

[0017] Reference numerals:

[0018] 1-bridge crane bridge; 2-steel corbel; 3-steel plate base; 4-steel column; 5-column support; 6-lintel; 7-beam support; 8-steel purlin; 9-platform plate. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0022] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] In response to the above problems, an embodiment of the present application provides an underground factory building arch steel grid construction platform, which can improve construction efficiency, speed up construction progress, and reduce construction risks.

[0024] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] See also Figure 1-4 The underground factory building arch steel grid construction platform includes a bridge crane 1 and steel columns 4; the steel columns 4 are evenly and vertically installed on both sides of the bridge crane 1, and the tops of the opposite steel columns 4 are connected with lintels 6, and the adjacent steel columns 4 at both ends of the bridge crane 1 are cross-connected with column supports 5, and the adjacent lintels 6 at both ends of the bridge crane 1 are cross-connected with beam supports 7, and the tops of the lintels 6 are evenly laid and installed with steel purlins 8, and the tops of the steel purlins 8 are installed with platform plates 9.

[0026] During operation, the steel column 4 and the lintel 6 are connected by bolts, and the column support 5 is used in the middle to strengthen the stability of the overall steel frame. The upper lintel 6 is provided with a beam support 7 for structural reinforcement, and then the platform plate is erected to form a construction platform steel frame. In this way, the steel structure platform fixed by the column support 5 and the beam support 7 has strong stability. In order to improve work efficiency and reduce construction safety risks, material transportation and top arch steel grid installation are carried out on the formed construction platform steel frame. After the construction is completed, it can be transferred to the next work surface through the walking system of the bridge crane 1.

[0027] This construction platform replaces the original full-height scaffolding by adopting a steel frame structure combined with a bridge crane 1. At the same time, all parts except the necessary connecting parts are removed. After using this device, the construction difficulty is greatly reduced. Due to the reduced size and weight of this device, construction can be carried out using a crane, thereby shortening the construction time and accelerating the construction progress. At the same time, due to the faster construction speed and reduced weight, personnel do not need to work at height for a long time, which greatly reduces the construction safety risk. At the same time, it reduces the input of personnel, equipment, and materials and reduces the labor intensity of construction personnel. The underground factory roof arch steel grid construction operation platform is optimized, reducing the difficulty of underground factory roof arch construction, improving construction efficiency, accelerating construction progress, reducing construction risks, and having high promotion and application value.

[0028] In some embodiments, the steel columns 4 are respectively and evenly vertically installed on both sides of the bridge crane 1 through steel corbels 2 and steel plate bases 3; the steel corbels 2 are composed of H-shaped steel, diagonal bracing steel pipes, and stiffening plates. The H-shaped steel is horizontally and evenly fixed on one side of the bridge crane 1. The diagonal bracing steel pipes are obliquely connected between the H-shaped steel and the side plates of the bridge crane 1. The diagonal bracing steel pipes and the H-shaped steel, and the diagonal bracing steel pipes and the side plates of the bridge crane 1 are fixed by stiffening plates. The steel plate base 3 is H-shaped steel, which is horizontally and evenly fixed on the other side of the bridge crane 1 and corresponds to the steel corbels 2.

[0029] During operation, the steel columns 4 are evenly and vertically installed on both sides of the bridge crane 1 through the steel corbels 2 and the steel plate base 3, which not only connects and fixes the construction platform steel frame and the bridge crane 1 but also protects the bridge crane structure from directly participating in the force-bearing structure. The bottom of the steel column 4 is fixed to the bridge crane 1 through the steel corbels 2 and the steel plate base 3 bolts. In this way, the structural stability is improved by bolt fixation, and it is also convenient for installation and disassembly.

[0030] The steel brackets 2 and steel plate base 3 were cut, welded, and installed on-site. The steel columns 4, column braces 5, lintels 6, beam braces 7, steel purlins 8, and platform plates 9 were all prefabricated in advance. Once the overhead crane was installed and the steel grid structure for the underground powerhouse arch was constructed, a crane was used to install the steel columns 4, column braces 5, lintels 6, beam braces 7, steel purlins 8, and platform plates 9, after the steel brackets 2 and steel plate base 3 were firmly welded to the overhead crane.

[0031] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0033] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A construction platform for an underground powerhouse arch steel grid, characterized by: The underground factory building arch steel grid construction platform includes a bridge crane (1) and steel columns (4); the steel columns (4) are evenly and vertically installed on both sides of the bridge crane (1); a lintel (6) is connected between the tops of the opposite steel columns (4); column supports (5) are cross-connected between the adjacent steel columns (4) at both ends of the bridge crane (1); beam supports (7) are cross-connected between the adjacent lintels (6) at both ends of the bridge crane (1); steel purlins (8) are evenly laid and installed on the tops of the steel purlins (8); and platform plates (9) are installed on the tops of the steel purlins (8).

2. The underground powerhouse arch steel grid construction platform according to claim 1 is characterized by: The steel columns (4) are evenly and vertically installed on both sides of the bridge crane (1) through steel brackets (2) and steel plate bases (3).

3. The underground powerhouse arch steel grid construction platform according to claim 2 is characterized by: The steel bracket (2) is composed of H-shaped steel, diagonal bracing steel pipes, and stiffening plates. The H-shaped steel is fixedly installed horizontally and evenly on one side of the bridge crane (1). A diagonal bracing steel pipe is obliquely connected between the H-shaped steel and the side plate of the bridge crane (1). The diagonal bracing steel pipe and the H-shaped steel, and the diagonal bracing steel pipe and the side plate of the bridge crane (1) are fixed by stiffening plates. The steel plate base (3) is H-shaped steel, fixedly installed horizontally and evenly on the other side of the bridge crane (1), and corresponds to the steel bracket (2).

Images