A shear wall arrangement structure of a main plant building of a coal-fired power plant

Abstract

The present application relates to the technical field of main plant wall arrangement structure, and discloses a kind of shear wall arrangement structure of coal-fired power plant main plant, and main plant is provided with at least two machine set areas arranged along longitudinal direction, and first frame column, second frame column, third frame column and fourth frame column are arranged in any machine set area;Each frame column column includes multiple frame columns, and frame span is defined between adjacent two frame columns;In machine set area, it is further provided with: first longitudinal shear wall, which is arranged in the frame span of first frame column column;Second longitudinal shear wall, which is arranged in the frame span of two longitudinal ends of second frame column column;Third longitudinal shear wall, which is arranged in the frame span of third frame column column;Fourth longitudinal shear wall, which is arranged in the frame span of fourth frame column column;Transverse shear wall, which is arranged between coal bunker and extends along transverse direction.The present application can meet the seismic design requirements of coal-fired power plant main plant, while reducing the adverse effects of shear wall on process equipment, process piping and maintenance operation.

Description

Technical Field

[0001] This invention relates to the field of main plant wall layout structure technology, and in particular to a shear wall layout structure for the main plant of a coal-fired power plant. Background Technology

[0002] The main plant building of a coal-fired power plant is an industrial building used to house steam turbines, generators, deaerators, coal bunkers, coal mills, and related pipelines and auxiliary equipment. It is one of the core buildings of a coal-fired power generating unit. These main plant buildings typically feature large spans, multiple floors, heavy equipment loads, dense equipment and pipeline layouts, and stringent requirements for maintenance access. Their structural design must not only meet the building's load-bearing and operational requirements but also accommodate the installation of process equipment, pipeline laying, equipment hoisting and maintenance, and personnel access.

[0003] In high-intensity seismic zones, the stiffness and load-bearing capacity of conventional reinforced concrete frame structures are insufficient to meet the seismic design requirements of the main plant building. To improve the main plant building's ability to resist horizontal seismic forces, existing technologies typically employ reinforced concrete frame-shear wall structural systems. This involves incorporating several shear walls within the frame structure to enhance the overall stiffness, strength, and lateral displacement resistance of the structure.

[0004] Currently, in the main powerhouse of coal-fired power plants using a frame-shear wall structure system, the shear walls are typically arranged in a distributed manner. For example, in the longitudinal direction of the main powerhouse, shear walls are installed every one or two spans along the locations of the frame columns; in the transverse direction, shear walls are installed at the end spans. This arrangement can meet the seismic requirements of the structure to a certain extent.

[0005] However, the equipment, piping, and maintenance access within the main building of a coal-fired power plant are densely packed, and the shear walls are quite long. When using the aforementioned decentralized layout, the shear walls easily encroach on the space for process piping. Some pipes that cannot be adjusted need to pass through the shear walls, necessitating the creation of openings in the shear walls and subsequent reinforcement. Simultaneously, the shear walls also affect equipment layout and the design of hoisting and maintenance areas, leading to irregular layouts for maintenance spaces. Furthermore, maintenance access requires detours or turns when encountering shear walls, impacting personnel access and the convenience of maintenance operations.

[0006] Therefore, how to reduce the adverse effects of shear walls on process equipment, process pipelines, and maintenance operations while meeting the seismic design requirements of the main building of a coal-fired power plant has become a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to design a shear wall arrangement structure for the main building of a coal-fired power plant that can meet the seismic design requirements of the main building while reducing the adverse effects of shear walls on process equipment, process pipelines, and maintenance operations.

[0008] To achieve the above objectives, the present invention provides a shear wall arrangement structure for the main building of a coal-fired power plant. The main building has longitudinal and transverse columns perpendicular to each other on a horizontal plane. The main building is characterized by having at least two unit areas arranged longitudinally. Within any one of the unit areas, a first frame column, a second frame column, a third frame column, and a fourth frame column are arranged sequentially and spaced apart transversely. The first frame column and the second frame column define a turbine hall, the second frame column and the third frame column define a deaerator room, and the third frame column and the fourth frame column define a coal bunker room. Each of the first, second, third, and fourth frame column columns includes multiple frame columns arranged longitudinally and spaced apart, with a frame span defined between adjacent frame columns. The unit area also includes: The first longitudinal shear wall is located in the frame span of the first frame column, and the first longitudinal shear wall is staggered in the longitudinal direction from the circulating water pipe pit in the unit area. The second longitudinal shear wall is provided at both ends of the frame span along the longitudinal direction of the second frame column. The second longitudinal shear wall is provided on one side of the frame span to define a spatial passage on the other side of the frame span. The third longitudinal shear wall is located in the frame span of the third frame column, and part of the third longitudinal shear wall is located in the stairwell area of ​​the main plant building; The fourth longitudinal shear wall is located in the frame span of the fourth frame column, and the fourth longitudinal shear wall constitutes part of the exterior wall of the main plant building; A transverse shear wall is provided in the coal bunker and extends laterally, and the transverse shear wall is set close to the fourth frame column in the transverse direction.

[0009] Furthermore, the unit area is configured as two, with an auxiliary maintenance span between the two unit areas, and a seismic joint is provided between each unit area and the auxiliary maintenance span, so that each unit area forms an independent seismic unit.

[0010] Furthermore, the turbine hall is equipped with a steam turbine, a generator, and a circulating water pipe pit; the circulating water pipe pit is located in the middle of the frame span along the longitudinal direction of the unit area, and the steam turbine and the generator are respectively located on both sides of the circulating water pipe pit along the longitudinal direction. Two first longitudinal shear walls are provided in the unit area. One first longitudinal shear wall is located in the adjacent frame span of the frame span corresponding to the circulating water pipe pit on the side close to the turbine. The other first longitudinal shear wall is located in the second frame span of the frame span corresponding to the circulating water pipe pit along the direction towards the generator.

[0011] Furthermore, the turbine hall is equipped with a steam turbine and a generator, which are arranged longitudinally opposite each other. Two second longitudinal shear walls are provided in the unit area. One of the second longitudinal shear walls is located in the frame span near the end of the second frame column near the turbine side. One end of the second longitudinal shear wall is connected to the frame column located on the side of the frame span away from the generator. The second longitudinal shear wall and the frame column located on the side of the frame span near the generator side form the space passage for process pipes to pass through. Another second longitudinal shear wall is located within the frame span near the generator side of the second frame column, and one end of the second longitudinal shear wall is connected to the frame column located on the side of the frame span near the turbine. The second longitudinal shear wall and the frame column located on the side of the frame span away from the turbine form the space passage for maintenance.

[0012] Furthermore, two third longitudinal shear walls are provided in the unit area, one of which is located in the frame span at the end of the third frame column facing away from the other unit area and is connected to the stairwell wall. Another third longitudinal shear wall is located within the frame span at the end of the third frame column row near the other unit area, and one end of the third longitudinal shear wall is connected to the frame column located on the side of the frame span away from the other unit area or to the stairwell wall.

[0013] Furthermore, a fourth longitudinal shear wall is provided within the unit area, and the fourth longitudinal shear wall is located within the frame span at the end of the unit area away from the other unit area.

[0014] Furthermore, the coal bunker is equipped with multiple coal mills, which are arranged longitudinally at intervals. The unit area is provided with three or four transverse shear walls, of which two transverse shear walls are located at the two ends along the longitudinal direction between the coal bunkers, and the remaining transverse shear walls are located between adjacent coal mills.

[0015] Furthermore, the main plant has a height direction, which is perpendicular to both the longitudinal and transverse directions. The main plant includes a zero-meter layer, an intermediate layer, an operating layer, a heater layer, a coal hopper layer, a deaerator layer, and a conveyor belt layer arranged sequentially from bottom to top along the height direction. The dimensions of the first longitudinal shear wall, the second longitudinal shear wall, the third longitudinal shear wall, the fourth longitudinal shear wall, and the transverse shear wall gradually decrease along the height direction in both the transverse and longitudinal directions.

[0016] Furthermore, the first longitudinal shear wall extends in the height direction from the zero-meter level to the operating level; and / or The second longitudinal shear wall extends vertically from the zero-meter level to the heater level or the deaerator level; and / or The third longitudinal shear wall is provided in the vertical direction extending from the zero-meter layer to the coal hopper layer or the deaerator layer; and / or The fourth longitudinal shear wall extends vertically from the zero-meter level to the coal hopper level or the conveyor belt level; and / or The transverse shear wall extends vertically from the zero-meter layer to the coal hopper layer or the conveyor belt layer.

[0017] Furthermore, one end of the first longitudinal shear wall, the second longitudinal shear wall, the third longitudinal shear wall, the fourth longitudinal shear wall, and the transverse shear wall is connected to the frame column of the frame span and the frame column is used as an edge member, while the other end is provided with a hidden column as an edge member.

[0018] Compared with the prior art, the shear wall arrangement structure of the main building of a coal-fired power plant according to an embodiment of the present invention has the following advantages: This invention discloses a shear wall arrangement structure for the main building of a coal-fired power plant. By arranging longitudinal shear walls on the boundary frame columns of different functional areas and concentrating transverse shear walls near the outer side of the coal bunker, the longitudinal and transverse lateral stiffness of the main building can be improved while reducing the interference of shear walls on equipment layout, process pipelines, and maintenance passages. The first to fourth longitudinal shear walls and the transverse shear walls form a zoned and concentrated seismic system, effectively avoiding spatial fragmentation caused by the irregular dispersion of shear walls within the main building. Attached Figure Description

[0019] Figure 1 This is an overall layout diagram of the main building of a coal-fired power plant in an embodiment of the present invention; Figure 2 This is a cross-sectional layout diagram of the main building of a coal-fired power plant in an embodiment of the present invention; Figure 3 This is a detailed structural drawing of the first longitudinal shear wall of the main building of a coal-fired power plant in an embodiment of the present invention; Figure 4 This is a detailed structural drawing of the fourth longitudinal shear wall and the transverse shear wall of the main building of a coal-fired power plant in an embodiment of the present invention; Figure 5 This is an enlarged schematic diagram of the arrangement of the first longitudinal shear wall in a unit area of ​​the main building of a coal-fired power plant in an embodiment of the present invention; Figure 6 This is an enlarged schematic diagram of the arrangement of the first longitudinal shear wall in another unit area of ​​the main building of a coal-fired power plant in an embodiment of the present invention; Figure 7 This is an enlarged schematic diagram of the arrangement of the second, third, and fourth longitudinal shear walls and the transverse shear walls in the unit area of ​​the main building of a coal-fired power plant in an embodiment of the present invention. Figure 8 This is an enlarged schematic diagram of the arrangement of the second, third, and fourth longitudinal shear walls and the transverse shear walls in another unit area of ​​the main building of a coal-fired power plant in an embodiment of the present invention.

[0020] In the diagram, 1. Unit area; 11. Turbine room; 111. Circulating water pipe pit; 112. Steam turbine; 113. Generator; 12. Deaerator room; 13. Coal bunker room; 131. Coal mill; 21. First frame column row; 22. Second frame column row; 23. Third frame column row; 24. Fourth frame column row; 211. Frame column; 212. Frame span; 31. First longitudinal shear wall; 32. Second longitudinal shear wall; 33. Third longitudinal shear wall; 34. Fourth longitudinal shear wall; 4. Transverse shear wall; 41. Hidden column; 5. Seismic joint; 6. Space passage; 71. Zero-meter level; 72. Intermediate level; 73. Operating level; 74. Heater level; 75. Coal hopper level; 76. Deaerator level; 77. Belt conveyor level; 9. Auxiliary maintenance span; x, horizontal direction; y, vertical direction; z, height direction. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] In the description of this invention, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this invention, the terms "first," "second," etc., are used to describe various types of information, but 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 invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0025] Reference Figure 1 According to an embodiment of the present invention, a shear wall arrangement structure of a main building of a coal-fired power plant is provided. The main building has a longitudinal direction y and a transverse direction x that are perpendicular to each other on a horizontal plane. The main building is provided with at least two unit areas 1 arranged along the longitudinal direction y. Each unit area 1 can be arranged with a set of main equipment and auxiliary equipment of a coal-fired power generation unit.

[0026] Within any of the unit areas 1, a first frame column 21, a second frame column 22, a third frame column 23, and a fourth frame column 24 are sequentially spaced along the transverse x direction. The first frame column 21 and the second frame column 22 define a turbine hall 11, the second frame column 22 and the third frame column 23 define a deaerator room 12, and the third frame column 23 and the fourth frame column 24 define a coal bunker room 13. Each of the first frame column 21, the second frame column 22, the third frame column 23, and the fourth frame column 24 includes multiple frame columns 211 arranged at intervals along the longitudinal y direction, and a frame span 212 is defined between two adjacent frame columns 211. The following are also provided in the unit area 1: The first longitudinal shear wall 31 is provided in the frame span 212 of the first frame column 21, and the first longitudinal shear wall 31 and the circulating water pipe pit 111 of the unit area 1 are staggered in the longitudinal y direction. The second longitudinal shear wall 32 is provided at both ends of the frame span 212 along the longitudinal y direction of the second frame column 22. The second longitudinal shear wall 32 is provided on one side of the frame span 212 to define a space passage 6 on the other side of the frame span 212. The third longitudinal shear wall 33 is located in the frame span 212 of the third frame column 23, and part of the third longitudinal shear wall 33 is located in the stairwell area inside the main plant building; The fourth longitudinal shear wall 34 is provided in the frame span 212 of the fourth frame column 24, and the fourth longitudinal shear wall 34 constitutes part of the exterior wall of the main plant building; A transverse shear wall 4 is provided in the coal bunker 13 and extends along the transverse x direction. The transverse shear wall 4 is located close to the fourth frame column 24 along the transverse x direction.

[0027] refer to Figure 1 The first longitudinal shear wall 31, the second longitudinal shear wall 32, the third longitudinal shear wall 33, and the fourth longitudinal shear wall 34 are respectively located at... Figure 1 Shear walls are set on all four axes A, B, C, and D. By setting different types of shear walls at different functional boundaries corresponding to the four frame columns 211, the arrangement of shear walls is matched with the areas of turbine room 11, deaerator room 12, coal bunker room 13, circulating water pipe pit 111, stairwell, exterior walls, and coal mill 131.

[0028] This application departs from the traditional practice of evenly distributing shear walls in the main building of coal-fired power plants, instead adopting a centralized wall arrangement. The longitudinal shear walls are precisely confined within specific spans of the 211 columns of the four main frame columns. Through a modular and regionalized wall arrangement, while meeting the structural stiffness requirements of high-intensity seismic zones, the staggered spatial arrangement in the longitudinal (y) and transverse (x) directions avoids key power plant areas such as the circulating water pipe pit 111, process piping, and main maintenance access passage.

[0029] In this embodiment, each longitudinal y-frame of each unit area 1 is defined by 9 frame columns 211, resulting in 8 frame spans 212. The two outermost frame spans 212 in the longitudinal y-axis are defined as side spans, and the rest are middle spans. The second longitudinal shear wall 32, the third longitudinal shear wall 33, and the fourth longitudinal shear wall 34 are all located within the side spans. This division method allows the shear walls to be concentrated in areas with critical stress that do not interfere with the core process flow, ensuring that long-distance, unobstructed straight maintenance access can be formed within the main plant, which helps to improve the efficiency of later operation and maintenance.

[0030] In some improvements of this application, the unit area 1 is configured as two, with an auxiliary maintenance span 4 between the two unit areas 1. Each unit area 1 and the auxiliary maintenance span 4 is provided with a seismic joint 5, so that each unit area 1 forms an independent seismic unit, allowing the two unit areas 1 and the auxiliary maintenance span 4 to have relatively independent deformation conditions under seismic loading. The auxiliary maintenance span 4 can be a conventional reinforced concrete frame structure.

[0031] By setting a seismic joint 5 between unit area 1 and auxiliary maintenance span 4, the risk of seismic action transmission and mutual collision between different areas can be reduced, making each unit area 1 a relatively independent seismic unit. Auxiliary maintenance span 4 can be adapted according to the equipment layout requirements of different projects without affecting the main seismic layout of the two unit areas 1.

[0032] refer to Figure 5 and Figure 6 In some improvements of this application, the turbine hall 11 is provided with a steam turbine 112, a generator 113 and a circulating water pipe pit 111; the circulating water pipe pit 111 is located in the middle of the frame span 212 along the longitudinal direction y of the unit area 1, and the steam turbine 112 and the generator 113 are respectively located on both sides of the circulating water pipe pit 111 along the longitudinal direction y; specifically, each unit area 1 is provided with 8 frame spans 212, and the circulating water pipe pit 111 is located in the fourth and fifth frame spans 212 in the middle.

[0033] The unit area 1 is provided with two first longitudinal shear walls 31, one of which is located in the adjacent frame span 212 of the frame span 212 corresponding to the circulating water pipe pit 111, close to the turbine 112, and the other is located in the second frame span 212 of the frame span 212 corresponding to the circulating water pipe pit 111, counting towards the generator 113.

[0034] By staggering the first longitudinal shear wall 31 from the circulating water pipe pit 111 and placing it within a specific frame span, the shear wall can avoid occupying the layout space of the circulating water pipe pit 111, reducing the possibility of process facilities such as circulating water pipe passage, busbar outlet, and heating pipe outlet being blocked by the shear wall, and also not affecting the normal opening and passage of the side span. At the same time, the first longitudinal shear wall 31 is not directly set within the frame span 212 where the circulating water pipe pit 111 is located, which helps to preserve the equipment installation and maintenance space in this area.

[0035] In some improvements of this application, the turbine room 11 is provided with a steam turbine 112 and a generator 113, and the steam turbine 112 and the generator 113 are arranged opposite each other along the longitudinal direction y; Two second longitudinal shear walls 32 are provided in the unit area 1. One of the second longitudinal shear walls 32 is located in the frame span 212 of the second frame column 22 near the end of the turbine 112. One end of the second longitudinal shear wall 32 is connected to the frame column 211 located on the side of the frame span 212 away from the generator 113. The second longitudinal shear wall 32 and the frame column 211 located on the side of the frame span 212 near the generator 113 form the space passage 6 for process pipes to pass through. Another second longitudinal shear wall 32 is disposed in the frame span 212 at the end of the second frame column 22 near the generator 113, and one end of the second longitudinal shear wall 32 is connected to the frame column 211 located on the side of the frame span 212 near the turbine 112. The second longitudinal shear wall 32 and the frame column 211 located on the side of the frame span 212 away from the turbine 112 form the space passage 6 for maintenance.

[0036] Two second longitudinal shear walls 32 are arranged in opposite directions at both ends of the unit area 1. One end frame span 212 retains a space passage 6 for process pipelines, and the other end frame span 212 retains a maintenance space passage 6, thus taking into account the needs of shear wall arrangement, process pipeline laying and personnel maintenance access, and reducing the situation where pipelines have to detour or maintenance passages have to turn due to shear wall obstruction.

[0037] refer to Figure 7 and Figure 8 In some improvements of this application, two third longitudinal shear walls 33 are provided in the unit area 1, one of the third longitudinal shear walls 33 is located in the frame span 212 at the end of the third frame column 23 facing away from the other unit area 1, and is connected to the stairwell wall. Another third longitudinal shear wall 33 is located in the frame span 212 at the end of the third frame column 23 near the other unit area 1, and one end of the third longitudinal shear wall 33 is connected to the frame column 211 located on the side of the frame span 212 away from the other unit area 1 or to the stairwell wall.

[0038] By arranging the third longitudinal shear wall 33 in the stairwell area or the end frame span 212 area, the shear wall can be accommodated in the stairwell wall and end space, reducing the occupation of the shear wall on the main process pipelines and personnel passage areas. This facilitates the centralized placement of seismic-resistant components and building functional components, improving space utilization efficiency. Specifically, this embodiment of the application provides four third longitudinal shear walls 33, three of which are located in the stairwell area, and the remaining one is arranged on the outer wall of the side span near the middle of one of the unit areas 1. This arrangement has no impact on pipeline layout and personnel passage.

[0039] In some improvements of this application, a fourth longitudinal shear wall 34 is provided in the unit area 1, and the fourth longitudinal shear wall 34 is located in the frame span 212 at the end of the unit area 1 away from the other unit area 1.

[0040] The fourth longitudinal shear wall 34 also serves as the exterior wall of the main plant building, while simultaneously bearing the longitudinal y-force resistance, thus avoiding the additional occupation of equipment layout space or maintenance passage space inside the coal bunker 13. While meeting the requirements for exterior wall enclosure and seismic resistance, it minimizes the impact on process equipment, pipelines, and personnel access within the coal bunker 13.

[0041] In some improvements of this application, the coal bunker 13 is equipped with multiple coal mills 131, which are arranged sequentially at intervals along the longitudinal direction y. The unit area 1 contains three or four transverse shear walls 4, with two transverse shear walls 4 located at both ends of the coal bunker 13 along the longitudinal direction y, and the remaining transverse shear walls 4 located between adjacent coal mills 131. The transverse shear walls 4 are arranged close to the fourth frame column 24, allowing a relatively continuous spatial area to be formed on the side of the coal bunker 13 closest to the third frame column 23. In a specific embodiment of this application, each unit area 1 is equipped with 3-4 transverse shear walls 4 according to seismic calculation requirements, with 2 walls arranged on the outer walls at both ends, and the remaining 1-2 walls arranged between the six coal mills 131 in a 2+2+2 or 3+3 interval.

[0042] refer to Figure 2 In some improvements of this application, the main plant has a height direction z, which is perpendicular to both the longitudinal y and transverse x directions. The main plant includes, from bottom to top along the height direction z, a zero-meter layer 71, an intermediate layer 72, an operating layer 73, a heater layer 74, a coal hopper layer 75, a deaerator layer 76, and a conveyor belt layer 77. The transverse x and longitudinal y dimensions of the first longitudinal shear wall 31, the second longitudinal shear wall 32, the third longitudinal shear wall 33, the fourth longitudinal shear wall 34, and the transverse shear wall 4 gradually decrease along the height direction z. The specific length and thickness of each shear wall can be determined according to the stress requirements of the corresponding floor, the seismic calculation results, and the equipment layout requirements. While ensuring that the lower floors have high lateral stiffness and bearing capacity, excessively large wall dimensions are avoided in the upper floors, thus reducing the structural self-weight and construction costs.

[0043] In some improvements of this application, the first longitudinal shear wall 31 extends from the zero-meter layer 71 to the operating layer 73 in the height direction z; the second longitudinal shear wall 32 extends from the zero-meter layer 71 to the heater layer 74 or the deaerator layer 76 in the height direction z; the third longitudinal shear wall 33 extends from the zero-meter layer 71 to the coal hopper layer 75 or the deaerator layer 76 in the height direction z; the fourth longitudinal shear wall 34 extends from the zero-meter layer 71 to the coal hopper layer 75 or the belt conveyor layer 77 in the height direction z; and the transverse shear wall 4 extends from the zero-meter layer 71 to the coal hopper layer 75 or the belt conveyor layer 77 in the height direction z.

[0044] By setting different vertical extension heights for shear walls at different locations, corresponding lateral stiffness can be provided according to the actual stress characteristics of each functional area, avoiding material waste and space constraints caused by all shear walls extending to the same elevation. The upper termination point of the shear wall can connect with the corresponding floor beam and slab structure, thereby improving the rationality of structural force transmission. refer to Figure 3 and Figure 4 In some improvements of this application, one end of the first longitudinal shear wall 31, the second longitudinal shear wall 32, the third longitudinal shear wall 33, the fourth longitudinal shear wall 34 and the transverse shear wall 4 is connected to the frame column 211 of the frame span 212 and the frame column 211 is used as an edge member, and the other end is provided with a hidden column 41 as an edge member.

[0045] Frame columns 211 and concealed columns 41 are located at both ends of the shear wall, respectively, to restrain and strengthen the ends of the shear wall. The shear wall body and edge members together form lateral force resisting members, and transfer the internal forces under seismic action to the frame system and foundation structure. At the same time, utilizing the original frame columns 211 as part of the edge members can reduce the need for additional members and improve the compactness of the structural layout.

[0046] In summary, the embodiments of the present invention provide a shear wall arrangement structure for the main building of a coal-fired power plant, which has the following advantages: 1) By setting longitudinal shear walls at the corresponding frame columns 211 of the turbine hall 11, deaerator room 12 and coal bunker room 13, and setting transverse shear walls 4 near the outer side of the coal bunker room 13, the arrangement of shear walls matches the functional zoning of the main plant, which is conducive to improving the overall lateral stiffness and seismic performance of the main plant. 2) The first longitudinal shear wall 31 is offset from the circulating water pipe pit 111, and the second longitudinal shear wall 32 is offset within the end frame span 212, which provides space for the circulating water pipe pit 111, process pipelines and maintenance passages, reducing the adverse impact of the shear wall on equipment, pipeline layout and personnel passage. 3) Part of the third longitudinal shear wall 33 is set in conjunction with the stairwell area, the fourth longitudinal shear wall 34 also serves as the exterior wall, and the transverse shear wall 4 is set at the end of the coal bunker 13 and between the coal mill 131. It can utilize the side space, stairwell space and equipment interval space to arrange seismic components, improve the utilization rate of the interior space of the plant, and facilitate the maintenance of the coal mill 131 and equipment passage. 4) By setting seismic joints 5, the unit area 1 is divided into relatively independent seismic units. The height, length, and thickness of each shear wall are adjusted according to the stress requirements of different areas, reducing unnecessary structural material usage and lowering construction costs while meeting seismic requirements. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A shear wall arrangement structure for the main building of a coal-fired power plant, wherein the main building has longitudinal and transverse members perpendicular to each other on a horizontal plane, characterized in that, The main plant has at least two unit areas arranged longitudinally. Within any one of the unit areas, a first frame column, a second frame column, a third frame column, and a fourth frame column are arranged laterally at intervals. The first frame column and the second frame column define a turbine hall, the second frame column and the third frame column define a deaerator room, and the third frame column and the fourth frame column define a coal bunker room. Each of the first, second, third, and fourth frame column columns includes multiple frame columns arranged longitudinally at intervals, and a frame span is defined between two adjacent frame columns. The unit area also includes: The first longitudinal shear wall is located in the frame span of the first frame column, and the first longitudinal shear wall is staggered in the longitudinal direction from the circulating water pipe pit in the unit area. The second longitudinal shear wall is provided at both ends of the frame span along the longitudinal direction of the second frame column. The second longitudinal shear wall is provided on one side of the frame span to define a spatial passage on the other side of the frame span. The third longitudinal shear wall is located in the frame span of the third frame column, and part of the third longitudinal shear wall is located in the stairwell area of ​​the main plant building; The fourth longitudinal shear wall is located in the frame span of the fourth frame column, and the fourth longitudinal shear wall constitutes part of the exterior wall of the main plant building; A transverse shear wall is provided in the coal bunker and extends transversely, and the transverse shear wall is set close to the fourth frame column in the transverse direction.

2. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that, The unit area is set as two, and an auxiliary maintenance span is provided between the two unit areas. Each unit area and the auxiliary maintenance span are provided with a seismic joint so that each unit area forms an independent seismic unit.

3. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that, The turbine hall is equipped with a steam turbine, a generator, and a circulating water pipe pit; the circulating water pipe pit is located in the middle of the frame span along the longitudinal direction of the unit area, and the steam turbine and the generator are respectively located on both sides of the circulating water pipe pit along the longitudinal direction. Two first longitudinal shear walls are provided in the unit area. One first longitudinal shear wall is located in the adjacent frame span of the frame span corresponding to the circulating water pipe pit on the side close to the turbine. The other first longitudinal shear wall is located in the second frame span of the frame span corresponding to the circulating water pipe pit along the direction towards the generator.

4. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 2, characterized in that, The turbine hall is equipped with a steam turbine and a generator, which are arranged longitudinally opposite each other. Two second longitudinal shear walls are provided in the unit area. One of the second longitudinal shear walls is located in the frame span near the end of the second frame column near the turbine side. One end of the second longitudinal shear wall is connected to the frame column located on the side of the frame span away from the generator. The second longitudinal shear wall and the frame column located on the side of the frame span near the generator side form the space passage for process pipes to pass through. Another second longitudinal shear wall is located within the frame span near the generator side of the second frame column, and one end of the second longitudinal shear wall is connected to the frame column located on the side of the frame span near the turbine. The second longitudinal shear wall and the frame column located on the side of the frame span away from the turbine form the space passage for maintenance.

5. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 2, characterized in that, Two third longitudinal shear walls are provided in the unit area, one of which is located in the frame span at the end of the third frame column facing away from the other unit area and is connected to the stairwell wall. Another third longitudinal shear wall is located within the frame span at the end of the third frame column row near the other unit area, and one end of the third longitudinal shear wall is connected to the frame column located on the side of the frame span away from the other unit area or to the stairwell wall.

6. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 2, characterized in that, A fourth longitudinal shear wall is provided within the unit area, and the fourth longitudinal shear wall is located within the frame span at the end of the unit area away from the other unit area.

7. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that, The coal bunker is equipped with multiple coal mills, which are arranged longitudinally at intervals. The unit area is provided with three or four transverse shear walls, of which two transverse shear walls are located at the two ends along the longitudinal direction between the coal bunkers, and the remaining transverse shear walls are located between adjacent coal mills.

8. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that, The main plant has a height direction, which is perpendicular to both the longitudinal and transverse directions. The main plant includes a zero-meter layer, an intermediate layer, an operating layer, a heater layer, a coal hopper layer, a deaerator layer, and a conveyor belt layer arranged sequentially from bottom to top along the height direction. The dimensions of the first longitudinal shear wall, the second longitudinal shear wall, the third longitudinal shear wall, the fourth longitudinal shear wall, and the transverse shear wall gradually decrease along the height direction in both the transverse and longitudinal directions.

9. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that: The first longitudinal shear wall extends vertically from the zero-meter level to the operating level; and / or The second longitudinal shear wall extends vertically from the zero-meter level to the heater level or the deaerator level; and / or The third longitudinal shear wall is provided in the height direction extending from the zero-meter layer to the coal hopper layer or the deaerator layer; and / or The fourth longitudinal shear wall extends vertically from the zero-meter level to the coal hopper level or the conveyor belt level; and / or The transverse shear wall extends vertically from the zero-meter layer to the coal hopper layer or the conveyor belt layer.

10. The shear wall arrangement structure of the main building of a coal-fired power plant as described in claim 1, characterized in that, One end of the first longitudinal shear wall, the second longitudinal shear wall, the third longitudinal shear wall, the fourth longitudinal shear wall, and the transverse shear wall is connected to the frame column of the frame span and the frame column is used as an edge member, and the other end is provided with a hidden column as an edge member.

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