UHPC assembly type machine room structure

Abstract

The UHPC assembly type machine room structure comprises a machine room enclosure bulkhead cylinder body, a first end cover and a second end cover, wherein the machine room enclosure bulkhead cylinder body is prefabricated by adopting an ultra-high performance concrete UHPC material; the machine room enclosure bulkhead cylinder body is provided with a bottom plate and two side walls, and the machine room enclosure bulkhead cylinder body is provided with a first opening end and a second opening end which are oppositely arranged; the first end cover and the second end cover are respectively arranged at the first opening end and the second opening end; the two end covers are provided with smoke suction and exhaust ports used for being connected with a ventilation pipeline. A machine room access door is arranged on one side wall; an internal smoke exhaust pipeline is arranged in the machine room enclosure bulkhead cylinder body, the two ends of the internal smoke exhaust pipeline are connected with the smoke suction and exhaust ports in the first end cover and the second end cover respectively, and the fan is arranged on the internal smoke exhaust pipeline. The UHPC shell is adopted and serves as an outer enclosure material of the machine room structure at the same time, the functions of enclosure, decoration, structural bearing and partial fire prevention are achieved, and building structure decoration and function integration is achieved.

Description

Technical Field

[0001] This application belongs to the technical field of prefabricated buildings and fire exhaust fan rooms, specifically relating to a UHPC prefabricated computer room structure. Background Technology

[0002] In recent years, with the iterative updates of standards such as the "Code for Fire Protection Design of Buildings" and the "Technical Standard for Smoke Control Systems in Buildings," dedicated equipment rooms for fire ventilation systems have been explicitly required to ensure the safe evacuation of personnel during a fire. In particular, the "Technical Standard for Distributed Charging Facilities for Electric Vehicles" stipulates that underground parking garages must have fire protection units for every 1000 square meters, resulting in a significant increase in the number of fire ventilation systems. Traditional cast-in-place ventilation rooms occupy a large amount of usable building area. For example, a 40,000-square-meter underground parking garage would require approximately 30 smoke exhaust rooms, each occupying 20-40 square meters, totaling 600-1000 square meters, significantly encroaching on parking space and other functional layouts.

[0003] In existing technologies, traditional cast-in-place machine rooms are difficult to adapt to changes in function and equipment after the main structure is completed, resulting in the need to demolish and rebuild some of the original facilities, causing material waste and construction delays. They also lack spatial flexibility and are difficult to achieve flexible layout in terms of use functions.

[0004] With the rapid development of industrialized construction and intelligent manufacturing, the application of prefabricated ventilation rooms has been promoted. These rooms are favored in large public and industrial buildings due to their advantages such as high construction efficiency, controllable quality, and space efficiency. However, existing prefabricated ventilation rooms still face the following problems and shortcomings in practice: Because the traditional enclosure structure of a ventilation room is usually a steel frame + metal / color steel plate / concrete block, decoration and structure are often considered separately. Fire prevention requires additional measures, resulting in complex construction processes, high costs, and often unsatisfactory fire resistance. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a UHPC prefabricated data center structure to solve one or more of the above-mentioned problems existing in the prior art.

[0006] The objective of this invention is achieved as follows: A UHPC prefabricated data center structure includes: The computer room enclosure cylindrical body has a bottom plate and two side walls that are vertically connected to and parallel to the bottom plate. The two ends of the computer room enclosure cylindrical body in the horizontal direction have a first opening end and a second opening end arranged opposite to each other. The end cap sidewall has a first end cap and a second end cap, which are respectively located at the first opening end and the second opening end; both the first end cap and the second end cap are provided with smoke intake and exhaust ports, which are used to connect to ventilation ducts. The access door to the computer room is located on one of the side walls; The internal smoke exhaust duct is located within the internal space formed by the machine room enclosure cylinder and the first and second end covers; the two ends of the internal smoke exhaust duct are respectively connected to the smoke intake and exhaust ports on the first and second end covers, and the fan is located on the internal smoke exhaust duct. The computer room enclosure cylinder, the first end cover, the second end cover, and the computer room maintenance door are all prefabricated using ultra-high performance concrete (UHPC) material.

[0007] Furthermore, the inner walls of the computer room enclosure cylinder, the first end cover, the second end cover, and the computer room maintenance door are all provided with a SiO2 aerogel layer.

[0008] Furthermore, a connecting structure is provided, through which the UHPC prefabricated computer room structure is suspended below the structural floor slab.

[0009] Furthermore, the computer room enclosure cylinder is also equipped with a top plate; the top plate is equipped with multiple first connection holes; the connection structure includes a connecting screw, the top of the connecting screw is detachably connected to or pre-embedded in the structural floor slab, the bottom end of the connecting screw can be aligned with and pass through the first connection hole on the top plate, and locked with nuts inside the computer room to realize the hanging of the computer room structure; or, the side of the top plate is reserved with horizontal ribs, and the horizontal ribs are cast as one with the surrounding structural floor slabs.

[0010] Furthermore, the connecting screw is a first fixing bolt, and multiple first fixing bolts extending downwards are pre-embedded at appropriate positions on the structural floor slab. The first fixing bolts can be aligned with and pass through the first connecting hole on the top plate, and are locked with nuts to realize the mounting of the computer room structure; or, the connecting screw is a hook screw, with a hook part at the top end, and a hook mating part that cooperates with the hook part is pre-embedded on the bottom surface of the structural floor slab. The bottom end of the hook screw can be aligned with and pass through the first connecting hole on the top plate, and is locked with locking nuts to realize the mounting of the computer room structure.

[0011] Furthermore, the connecting structure includes a precast composite slab, which serves as the top slab of the machine room enclosure cylinder; the precast composite slab has truss reinforcement, which is cast into an integral structure with the structural floor slab.

[0012] Furthermore, the top opening of the computer room enclosure cylinder is provided, and the top solid surfaces of the computer room enclosure cylinder, the first end cover, and the second end cover constitute the connection end face; the connection structure includes a pre-embedded connector, which is pre-embedded in the computer room enclosure cylinder, the first end cover, and the second end cover, and protrudes upward from the connection end face; the part of the pre-embedded connector protruding from the connection end face becomes an integral structure with the concrete structural floor slab when the concrete structural floor slab is poured.

[0013] Furthermore, the pre-embedded connectors include one or more of the following: U-shaped hoop, ribs, and studs; the closed U-shaped end of the U-shaped hoop is set upwards; the exposed part of the ribs is bent outwards at 90°; or, two rows of ribs are set to form a clamp, one row is bent inwards at 90° and the other row is bent outwards at 90°.

[0014] Furthermore, the connecting structure includes a first steel plate, a second steel plate, and a first angle steel; the top outer wall surfaces of the machine room enclosure cylinder, the first end cap, and the second end cap are all provided with the first steel plate; the bottom surface of the structural floor slab is pre-embedded with the second steel plate at the corresponding position, and the two vertical steel planes of the first angle steel are welded to the first steel plate and the second steel plate respectively to realize the fixed suspension of the machine room structure.

[0015] Furthermore, the enclosure wall of the computer room is a one-piece structure cast using a vertical molding process; or, it is produced using a centrifugal method.

[0016] Compared with the prior art, the UHPC prefabricated computer room structure provided by the present invention has at least one of the following beneficial effects: 1. Ultra-high performance concrete (UHPC) is used as the main structure of the computer room. UHPC itself has high strength, high durability, and strong plasticity (decorative properties). UHPC itself has certain fire resistance and is thin and lightweight, without any other skeleton. The computer room structure uses UHPC shell, which also serves as the external cladding material of the computer room structure 100, undertaking the functions of enclosure, decoration, structural load-bearing and some fire protection, thus achieving the integration of building structure, decoration and function.

[0017] 2. A SiO2 aerogel layer is installed on the inner wall of the computer room structure to form a composite structure, achieving a fire resistance requirement of at least 2 hours. Utilizing the UHPC shell as a robust substrate and external protective layer, the aerogel layer, located internally, effectively blocks heat transfer to the structural core, protecting internal equipment and maintaining structural integrity in the event of a fire. Furthermore, by placing the SiO2 aerogel layer on the inner wall of the computer room, it is less susceptible to mechanical damage, making it superior to external bonding or sandwich structures.

[0018] 3. This invention provides a solution to the problem of low utilization efficiency of underground parking garages due to the large building area occupied by fire ventilation equipment rooms. It also adapts to flexible adjustments in usage functions, adopts a prefabricated integrated design, and has multiple advantages such as low cost, light weight, fire resistance, stability, reusability, and aesthetics. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 Structural diagram of the UHPC prefabricated computer room structure provided by the present invention Figure 1 ; Figure 2 A cross-sectional view of the UHPC prefabricated computer room structure with cooling function provided by the present invention. Figure 1 ; Figure 3 A cross-sectional view of the UHPC prefabricated computer room structure with cooling function provided by the present invention. Figure 2 ; Figure 4 Structural diagram of the UHPC prefabricated computer room structure provided by the present invention Figure 2 ; Figure 5 A schematic diagram showing the disassembly of the end cover wall and the open state of the maintenance door of the UHPC prefabricated computer room structure provided by the present invention. Figure 6 Schematic diagram of the structure of the computer room enclosure cylinder provided by the present invention Figure 1 ; Figure 7 Schematic diagram of the structure of the computer room enclosure cylinder provided by the present invention Figure 2 ; Figure 8 A schematic diagram of the structure of the end cap side wall with a smoke extraction port provided by the present invention; Figure 9 A schematic diagram of the structure of the exhaust port on the end cap side wall of the present invention, which is provided with a duct connection flange; Figure 10 for Figure 9 Enlarged view of region B in the middle; Figure 11 This is a partial structural schematic diagram of the duct connection flange provided by the present invention; Figure 12 This is a schematic diagram of the hinge assembly provided by the present invention; Figure 13 A schematic diagram of the hook screw provided by the present invention; Figure 14 Schematic diagrams of the four connection structures provided by the present invention; Figure 15 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 1 ; Figure 16 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 2 ; Figure 17 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 3 ; Figure 18 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 4 ; Figure 19 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 5 ; Figure 20 The model of the ventilation duct connection for the UHPC prefabricated computer room structure provided by the present invention. Figure 6 ; Figure 21 A schematic diagram of the connection between the end cap sidewall and the machine room enclosure cylinder provided by the present invention; Figure 22 A schematic diagram showing the connection between the end cap sidewall and the machine room enclosure cylinder provided by the present invention, which uses a pin locking mechanism; Figure 23 A schematic diagram of a fireproof aerogel strip installed between the computer room access door and the main structure of the computer room, as provided by the present invention; Figure 24 A schematic diagram of the first connection structure between the end cap sidewall and the machine room enclosure cylinder provided by the present invention; Figure 25 This is a schematic diagram of a second connection structure between the end cap sidewall and the machine room enclosure cylinder provided by the present invention. Figure 26 for Figure 25 A partial structural diagram of the second type of connection structure; Figure 27 A schematic diagram of the structure of the fan provided by the present invention, which is installed inside the machine room structure by means of a seismic support; Figure 28 This is a schematic diagram of the structure of the anti-seismic support provided by the present invention.

[0021] Figure label: 100. Computer room structure; 200. Structural floor slab; 300. Ventilation duct; 400. Corrugated pipe; 1. Machine room enclosure cylinder; 11. First side wall; 111. Second groove; 12. Second side wall; 13. First opening end; 131. First groove; 1311. T-shaped groove; 1312. F-shaped groove; 1313. Wedge-shaped groove; 14. Second opening end; 15. Base plate; 151. Drain outlet; 16. Top plate; 1601. First connecting hole; 17. Fireproof aerogel strip; 18. Embedded buckle; 2. End cap sidewall; 21. First end cap; 211. T-shaped protrusion; 212. Y-shaped protrusion; 213. Wedge-shaped end; 22. Second end cap; 23. Smoke intake / exhaust port; 231. Duct connection flange; 2311. Second angle steel; 2312. U-shaped tie bar; 2313. Connecting bolt; 2314. Stiffening rib; 24. Arrow-shaped pin; 25. Expansion bolt; 3. Machine room maintenance door; 31. Hinge assembly; 311. Hinge pin; 312. Shaft washer; 313. Cylinder hinge support; 314. Reinforcing metal rib; 4. Fan; 41. Cover; 42. Seismic brace; 421. Spring; 422. Metal adapter; 423. First vertical metal rod; 424. Support plate; 425. Second vertical metal rod; 43. Motor; 44. Internal circulation fan impeller; 45. Guide hole; 5. Connection structure; 51. Hook screw; 511. Hook part; 512. Locking nut; 52. Precast composite slab; 53. U-shaped hoop; 54. Rib; 541. Horizontal rib; 55. Stud; 56. First steel plate; 57. Second steel plate; 58. First angle steel; 6. SiO2 aerogel layer; 7. Electrical Warehouse; 8. Internal smoke exhaust duct; 81. Smoke exhaust duct; 82. Flexible connecting pipe; 9. Sprinkler system; 91. Sprinkler pipe; 92. Drain pipe; 93. Sprinkler head. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that, unless otherwise specified, the implementation methods and features in the implementation methods in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0024] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0025] Example 1 A specific embodiment of the present invention discloses a UHPC prefabricated computer room structure, hereinafter referred to as "computer room structure 100", which uses ultra-high performance concrete as the main structure of computer room structure 100. Because ultra-high performance concrete (UHPC) itself has high strength, high durability, and strong plasticity (decorative properties), and because UHPC itself has a certain degree of fire resistance and is lightweight, without any other skeleton, the computer room structure uses a UHPC shell, which also serves as the external cladding material of computer room structure 100, undertaking the functions of enclosure, decoration, structural load-bearing, and partial fire protection, thus achieving the integration of architectural structure, decoration, and function.

[0026] like Figures 1 to 28As shown, the UHPC prefabricated computer room structure includes a main structure, the internal space of which is equipped with a fan 4; the main structure includes a computer room enclosure cylinder 1, end cap side walls 2, and a computer room inspection door 3. The end cap side walls 2 include a first end cap 21 and a second end cap 22. The computer room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the computer room inspection door 3 are all prefabricated using ultra-high performance concrete (UHPC) material; the computer room enclosure cylinder 1 has a base plate 15 and a first side wall 11 and a second side wall 12 connected to the base plate 15 and arranged vertically in parallel. The horizontal ends of the computer room enclosure cylinder 1 have a first open end 13 and a second open end 14 arranged opposite to each other; the first end... Cover 21 and second end cover 22 are respectively provided at the first opening end 13 and the second opening end 14; both the first end cover 21 and the second end cover 22 are provided with smoke inlet and exhaust outlet 23, which are used to connect to the ventilation duct 300, one of the smoke inlet and exhaust outlet 23 is a smoke inlet, and the other smoke inlet and exhaust outlet 23 is a smoke outlet; the machine room maintenance door 3 is provided on the first side wall 11 or the second side wall 12, and can be opened and closed; the internal space formed by the machine room enclosure cylinder 1 and the first end cover 21 and the second end cover 22 is provided with an internal smoke exhaust pipe 8, and the two ends of the internal smoke exhaust pipe 8 are respectively connected to the smoke inlet and exhaust outlet 23 on the first end cover 21 and the second end cover 22, and the fan 4 is provided on the internal smoke exhaust pipe 8.

[0027] Specifically, the internal smoke exhaust pipe 8 includes two sections of smoke exhaust duct 81. The fan 4 is located inside the cover 41. The cover 41 has an air inlet and an air outlet. The air inlet and the air outlet are respectively connected to the smoke suction and exhaust port 23 on the first end cover 21 and the smoke suction and exhaust port 23 on the second end cover 22 through a section of smoke exhaust duct 81.

[0028] Furthermore, the internal smoke exhaust duct 8 also includes two flexible connecting pipes 82. The air inlet and air outlet of the hood 41 are respectively connected to the smoke exhaust ducts 81 on both sides through a flexible connecting pipe 82. The use of flexible connections can reduce noise.

[0029] Although UHPC itself has a certain degree of fire resistance, better than ordinary concrete, it conducts heat quickly, and its strength decreases at high temperatures. Therefore, to further improve fire resistance, SiO2 aerogel layers 6 are provided on the inner walls of the machine room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the machine room access door 3, forming a composite structure to achieve at least 2 hours of fire resistance. In this embodiment, the machine room structure 100 utilizes the UHPC shell as a robust substrate and external protective layer, with the aerogel layer located inside. This effectively blocks heat transfer to the structural core, protecting internal equipment and maintaining the structural integrity in case of fire. Moreover, by placing the SiO2 aerogel layer 6 on the inner wall of the machine room, the aerogel layer is less susceptible to mechanical damage, which is superior to external bonding or sandwich structures. This embodiment utilizes the structural strength and initial fire barrier effect of UHPC, combined with the super thermal insulation performance of the SiO2 aerogel layer 6, to achieve a fire resistance effect of "1+1>2".

[0030] When preparing components such as the computer room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the computer room maintenance door 3, the SiO2 aerogel layer 6 can be directly laid on one side of the corresponding computer room inner wall of each component; or, after the computer room structure 100 is assembled on site, the SiO2 aerogel layer 6 can be laid on the entire inner wall of the computer room.

[0031] In this embodiment, the UHPC prefabricated computer room structure can be divided into suspended type and ground type, which are used for underground garages and roof fire ventilation equipment, respectively.

[0032] The following explanation uses a suspended UHPC prefabricated computer room structure as an example: The computer room structure 100 is connected to the structural floor slab 200 via connecting structure 5 and is suspended below the structural floor slab 200. The specific structural design of connecting structure 5 is related to the structure of the computer room enclosure cylinder 1, specifically whether the computer room enclosure cylinder 1 includes a top plate 16, and includes the following possibilities: In the first case, the computer room enclosure cylinder 1 is also provided with a top plate 16, and the top plate 16 is provided with multiple first connection holes 1601; the connection structure 5 in this case includes a connecting screw, the top end of the connecting screw is detachably connected to or pre-embedded in the structural floor slab 200, and the bottom end of the connecting screw can be aligned with and pass through the first connection hole 1601 on the top plate 16, and locked with a nut inside the computer room to realize the mounting of the computer room structure 100.

[0033] Specifically, the connecting screw is the first fixing bolt. Multiple first fixing bolts extending downwards are pre-embedded at appropriate positions on the structural floor slab 200. These first fixing bolts can be aligned with and pass through the first connecting hole 1601 on the top plate 16, and are locked in place using nuts, thus achieving the mounting of the machine room structure 100; or, see [link to other documentation]. Figure 13The connecting screw is a hook screw 51, with a hook portion 511 at its top. A hook mating portion that mates with the hook portion 511 is pre-embedded on the bottom surface of the structural floor slab 200. The bottom end of the hook screw 51 can be aligned with and pass through the first connecting hole 1601 on the top plate 16, and is locked using a locking nut 512 to achieve the mounting of the machine room structure 100. Optionally, the first fixing bolt can be a one-way bolt to prevent loosening. Correspondingly, the lower threaded section of the hook screw 51 can also adopt a one-way bolt thread structure.

[0034] In the second scenario, the connecting structure 5 includes a precast composite slab 52, which serves as the top slab 16 of the machine room enclosure cylinder 1. The precast composite slab 52 has truss reinforcement bars, which are cast integrally with the structural floor slab 200. In other words, the top slab 16 of the machine room includes the bottom slab portion of the composite floor slab, which is integrally fabricated with the machine room structure. At the construction site, the precast composite slab 52 on top of the machine room structure directly serves as the bottom formwork of the structural floor slab 200, becoming part of the structural floor slab 200. After the precast composite slab 52 is poured into the structural floor slab 200, a single slab bears the load. The truss reinforcement bars ensure a strong bond between the precast bottom slab and the precast composite slab 52, allowing the top slab 16 of the machine room to participate in the structural load-bearing process.

[0035] In the third scenario, the top opening of the computer room enclosure cylinder 1 is provided, and the top solid surfaces of the computer room enclosure cylinder 1, the first end cap 21, and the second end cap 22 constitute the connection end face; the connection structure 5 includes a pre-embedded connector, which is pre-embedded in the computer room enclosure cylinder 1, the first end cap 21, and the second end cap 22, and protrudes upward from the connection end face; the part of the pre-embedded connector protruding from the connection end face becomes an integral structure with the concrete structural floor slab 200 when the concrete structural floor slab 200 is poured.

[0036] For example, the pre-embedded connectors include one or more of the following: U-shaped hoop 53, spur bar 54, and stud 55, see [reference]. Figure 14 The U-shaped hoop 53 has its closed U-shaped end facing upwards; the exposed portion of the reinforcing bar 54 is bent outwards at a 90° angle; or, two rows of reinforcing bars 54 are used to form a hoop, with one row bent inwards at a 90° angle and the other row bent outwards at a 90° angle. The exposed portions of the U-shaped hoop 53 and the reinforcing bar 54 meet the anchorage length requirements. Taking the setting of the reinforcing bar 54 as an example, the construction process is as follows: During the formwork support process at the construction site, the machine room structure is first positioned, and then formwork needs to be erected to cover the opening at the top of the machine room. Structural concrete slabs are poured on the erected formwork, and the reinforcing bars 54 of the machine room side walls are anchored into the structural floor slab 200 for a secure connection.

[0037] In the fourth scenario, the connection structure 5 includes a first steel plate 56, a second steel plate 57, and a first angle steel 58. The first steel plate 56 is provided on the top outer wall surface of the machine room enclosure cylinder 1, the first end cap 21, and the second end cap 22. A second steel plate 57 is pre-embedded at a corresponding position on the bottom surface of the structural floor slab 200. The two vertical steel planes of the first angle steel 58 are welded to the first steel plate 56 and the second steel plate 57 respectively, thus achieving the fixed suspension of the machine room structure 100. In this case, this connection structure 5 can be used regardless of whether the machine room enclosure cylinder 1 has a top plate 16.

[0038] In the fifth scenario, the machine room enclosure cylinder 1 has a top slab 16, which is a section of the structural slab. The top slab 16 and the machine room enclosure cylinder 1 are integrally manufactured. Horizontal reinforcing bars 541 are pre-reserved on the sides of the top slab 16, and these horizontal reinforcing bars 541 are cast integrally with the surrounding structural floor slabs 200. Before the surrounding structural floor slabs 200 are poured on the construction site, the machine room structure is first positioned, and it is connected to the surrounding floor slab structure through the horizontal reinforcing bars 541 on the sides. The top slab 16 of the machine room participates in the load-bearing capacity of the entire structural floor slab 200.

[0039] In this embodiment, the equipment room enclosure cylindrical body 1 is an integral structure cast using a vertical molding process; alternatively, it can be produced using a centrifugal method. For example, the equipment room enclosure cylindrical body 1 adopts a cylindrical cuboid structure with planar dimensions of 2550mm*2750mm and a height of 1250mm, achieving a highly integrated and compressed space while accommodating different types of fan configurations. Furthermore, multiple equipment room enclosure cylindrical bodies 1 can be connected in series to form modular groups for use by multiple fan units.

[0040] In this embodiment, the computer room maintenance door 3 is a double door. The two maintenance doors, the maintenance door and the computer room enclosure cylinder 1, and the computer room enclosure cylinder 1 and its two side first end caps 21 and second end caps 22 all employ an inlaid structure with no through seams. For example, the first opening end 13 and the second opening end 14 of the computer room enclosure cylinder 1 are each provided with a first recess 131, and the first end cap 21 and the second end cap 22 are installed and fixed within the first recess 131. The first side wall 11 or the second side wall 12 is provided with a second recess 111, and the computer room maintenance door 3 is rotatably installed within the second recess 111 via a hinge assembly 31.

[0041] In this embodiment, the hinge assembly 31 can both bear a large load and enable the machine room maintenance door 3 to rotate and open / close. Specifically, see... Figure 12The hinge assembly 31 includes a hinge pin 311, a pivot washer 312, and a cylinder hinge support 313. All three components are made of metal. The hinge pin 311 and the cylinder hinge support 313 are arranged in pairs, one above the other. The embedded portion of the hinge pin 311 is embedded in the machine room maintenance door 3, and the embedded portion of the cylinder hinge support 313 is embedded in the side wall where the second groove 111 is located. The insertion portion of the hinge pin 311 can be inserted into the cylinder hinge support 313 and can rotate. A pivot washer 312 is provided between the hinge pin 311 and the cylinder hinge support 313. Furthermore, to improve the load-bearing strength of the hinge assembly 31, both the hinge pin 311 and the cylinder hinge support 313 are provided with two reinforcing metal ribs 314. In other words, two hinge pins 311 are pre-embedded in the machine room access door 3, one above the other, and are used in conjunction with the hinge supports also pre-embedded in the machine room enclosure cylinder 1. Both the hinge pins 311 and the cylinder hinge supports 313 are provided with two reinforcing metal ribs 314, which are located on both sides to increase the connection contact surface and increase the moment of inertia of the structural section, thus ensuring structural strength. A pivot washer 312 is provided between the hinge pins 311 and the cylinder hinge supports 313 to reduce the friction generated by the rotation of the access door under gravity load, allowing the access door to be opened quickly and easily even if it has not been opened for a long time and there is metal oxidation.

[0042] Since the maintenance door 3 of the computer room needs to be opened for each maintenance, it needs to be easy to open and still achieve a fireproof sealing effect when closed. This can be achieved by installing a fireproof sealing aerogel strip 17 on the contact surface between the maintenance door and the main body of the computer room structure 100. Specifically, such as Figure 23 As shown, at least one fire-resistant aerogel strip 17 is provided between the groove wall of the second groove 111 and the inner wall of the computer room access door 3. By providing a fire-resistant aerogel strip between the computer room access door 3 and the main structure of the computer room, it is effectively prevented that smoke from the outside can enter the computer room through the gap between the computer room access door 3 and the main structure of the computer room in the event of a fire. Preferably, there are two fire-resistant aerogel strips 17, one on the groove wall of the second groove 111 and one on the inner wall of the computer room access door 3, and the fire-resistant aerogel strips 17 are made of SiO2 aerogel material.

[0043] In this embodiment, both the first end cap 21 and the second end cap 22 have outwardly protruding smoke inlets 23, and the ports of the smoke inlets 23 are provided with duct connecting flanges 231, which are used to connect with the flanges of the ventilation duct 300.

[0044] To enhance the strength of the duct connection flange 231, a reinforcing structure is provided at the connection end of the duct connection flange 231, such as... Figures 9 to 11As shown, the reinforcing structure includes a second angle steel 2311 and a U-shaped tie bar 2312. The U-shaped tie bar 2312 is welded to the second angle steel 2311 and is embedded in the duct connection flange 231 and the smoke exhaust port 23 to enhance the connection strength between the duct connection flange 231 and the smoke exhaust port 23. The duct connection flange 231 has a square structure, and the second angle steel 2311 is located at the right angle of the duct connection flange 231. The two right-angled outer planes of the second angle steel 2311 are basically coplanar with the two right-angled planes of the duct connection flange 231. The second angle steel 2311 has a through hole, and a connecting bolt 2313 is reserved in the through hole. The connecting bolt 2313 is used to connect the flange of the ventilation duct 300.

[0045] Furthermore, a plurality of stiffening ribs 2314 are provided along the length direction of the second angle steel 2311. The stiffening ribs 2314 are steel plates, which are arranged perpendicular to the length direction of the second angle steel 2311. Preferably, the thickness of the steel plates is 3mm and the spacing is 200mm.

[0046] Furthermore, there are multiple U-shaped tie bars 2312, which are evenly arranged along the length of the second angle steel 2311 at a spacing of 200mm; preferably, the U-shaped tie bars 2312 are made of HPB300 steel bars with a diameter of 6mm bent.

[0047] Furthermore, a corrugated pipe 400 is connected between the smoke intake / exhaust port 23 on the end cover side wall 2 and the ventilation duct 300. Both ends of the corrugated pipe 400 are connected to the duct at the smoke intake / exhaust port 23 and the flange of the ventilation duct 300, respectively. Because the corrugated pipe 400 has a certain degree of expansion and contraction, it can allow for a certain distance of movement at the connection point under special circumstances such as earthquakes or strong vibrations, preventing breakage at the connection point due to rigidity, thereby ensuring the normal operation of the computer room.

[0048] In this embodiment, the first end cap 21 and the second end cap 22 are installed on the first open end 13 and the second open end 14 of the computer room enclosure cylinder 1 by field assembly. In order to facilitate installation and reduce the use of fixing accessories, protrusions / grooves are provided at the groove positions of the computer room enclosure cylinder 1 and at the edge positions of the end caps. The cooperation of the protrusions and grooves forms a self-locking structure, thereby realizing the fixation of the position of the two end caps after installation.

[0049] Figure 24A self-locking structure is shown: the top of the first groove 131 is provided with a T-shaped slot 1311, and the bottom of the first groove 131 is provided with a horizontally placed F-shaped slot 1312; the first groove 131 has a vertical groove wall and a horizontal groove wall, the T-shaped slot 1311 is provided on the vertical groove wall at the top, and the F-shaped slot 1312 is provided on the horizontal groove wall at the bottom; the upper ends of the first end cap 21 and the second end cap 22 are provided with T-shaped protrusions 211 that are adapted to the T-shaped slots 1311, and the lower ends of the first end cap 21 and the second end cap 22 are provided with protrusions 211 that are adapted to the horizontally placed F-shaped slots 1312. The Y-shaped protrusion 212 is adapted; when the upper surfaces of the first end cap 21 and the second end cap 22 abut against the horizontal groove wall at the top of the first groove 131, the lowest end of the T-shaped protrusion 211 is higher than the protruding part of the F-shaped groove 1312. The first end cap 21 and the second end cap 22 can be moved horizontally towards the inside of the computer room until the T-shaped protrusion 211 moves above the T-shaped groove 1311. Then, the first end cap 21 and the second end cap 22 fall down, the T-shaped protrusion 211 can be inserted into the T-shaped groove 1311, and the Y-shaped protrusion 212 can be inserted into the horizontally placed F-shaped groove 1312. Install the first end cover 21 and the second end cover 22 in sequence. For example, when installing the first end cover 21, first lift the first end cover 21 as a whole. The upper surface of the first end cover 21 abuts against the horizontal groove wall of the first cylinder of the computer room enclosure cylinder 1. Move it horizontally from the outside to the inside of the computer room enclosure cylinder 1 until the T-shaped protrusion 211 of the first end cover 21 moves horizontally to the top of the T-shaped slot 1311 of the computer room enclosure cylinder 1. Then slowly lower the first end cover 21. Under gravity, the Y-shaped protrusion 212 of the first end cover 21 is inserted into the F-shaped slot 1312 of the computer room enclosure cylinder 1. The upper and lower ends of the first end cover 21 are completely closed, and the installation of the first end cover 21 is completed.

[0050] Figures 25 to 26Another self-locking structure is shown: the top of the first groove 131 is provided with a T-shaped slot 1311, and the bottom of the first groove 131 is provided with a wedge-shaped groove 1313; the top of the first groove 131 has a vertical groove wall and a horizontal groove wall, and the T-shaped slot 1311 is provided on the vertical groove wall at the top; optionally, the wedge-shaped groove 1313 can be provided on the horizontal groove wall at the bottom; the upper ends of the first end cap 21 and the second end cap 22 are provided with T-shaped protrusions 211 that are adapted to the T-shaped slot 1311, and the lower ends of the first end cap 21 and the second end cap 22 are provided with wedge-shaped grooves 1313 that are adapted to the wedge-shaped grooves 1313. The wedge-shaped end 213 has a wedge-shaped inclined surface. When the upper surfaces of the first end cap 21 and the second end cap 22 abut against the horizontal groove wall at the top of the first groove 131, the lowest end of the T-shaped protrusion 211 is higher than the outer opening of the wedge-shaped groove 1313. The first end cap 21 and the second end cap 22 can be moved towards the interior of the machine room until the T-shaped protrusion 211 moves above the T-shaped groove 1311. Then, the first end cap 21 and the second end cap 22 fall down, and the T-shaped protrusion 211 can be inserted into the T-shaped groove 1311, and the wedge-shaped end 213 can be inserted into the wedge-shaped groove 1313. Preferably, the inclined surface angle of the wedge-shaped groove 1313 is θ, where θ = 8.53°. In other words, wedge-shaped ramps are provided at the lower ends of the machine room enclosure cylinder 1 and the two end caps. The slope of the wedge-shaped ramps is 8.53°. Under this slope, the end caps will form a self-locking mechanism and will not slide relative to each other. To facilitate the installation of the end caps by workers, the following installation method can also be adopted: For example, place the machine room enclosure cylinder 1 on the ground, with the base plate 15 on the ground. When installing the first end cap 21, lift the first end cap 21 so that its lower end is close to the wedge-shaped groove 1313 at the lower end of the machine room enclosure cylinder 1, and push it horizontally into the machine room enclosure cylinder 1. When pushing, there is no need to lift the whole thing. Under the action of gravity, the wedge-shaped end 213 falls into the wedge-shaped groove 1313. The falling height of the wedge-shaped end 213 is the falling height of the T-shaped slot 1311. This installation method only requires a small amount of force to easily push the wedge-shaped groove 1313, forming a self-locking mechanism, and also has a certain limiting function.

[0051] To further lock the first end cap 21 and the second end cap 22, arrow-shaped pins 24 are provided at the positions where the first end cap 21 and the second end cap 22 are embedded in the first groove 131. Simultaneously, a pre-embedded buckle 18 is provided on the inner wall surface of the machine room enclosure cylinder 1 to engage with the arrow-shaped pins 24. (See [reference]). Figure 22 Optionally, the embedded buckle 18 can be a unidirectional deformable metal embedded buckle 18. Further, a sealing strip is provided at the connection between the machine room enclosure cylinder 1 and the end cover.

[0052] In one alternative embodiment, the first end cap 21 and the second end cap 22 are connected to the open ends of the machine room enclosure cylinder 1 using a mortise and tenon joint structure; bolts can be used to help lock the mortise and tenon joint connection. Alternatively, the first end cap 21 and the second end cap 22 are directly connected to the machine room enclosure cylinder 1 using expansion bolts 25, such as... Figure 21 As shown.

[0053] In this embodiment, a cooling mechanism is also provided on the internal smoke exhaust pipe 8. Specifically, one or more of the following cooling mechanisms are provided on the internal smoke exhaust pipe 8: The first type of cooling mechanism includes a motor cooling system configured to dissipate heat and cool the motor 43 of the fan 4. Specifically, the motor cooling system is located at the rear end of the motor 43 of the fan 4. The motor cooling system uses an internal circulation fan impeller 44. The motor housing of the motor 43 has a guide pipe that communicates with the outside. Specifically, the motor housing has a guide hole 45, which is connected to the guide pipe (not shown in the figure). The bottom plate 15 of the machine room enclosure cylinder 1 has a through hole, and the guide pipe extends out of the through hole on the bottom plate 15 and communicates with the outside. In this way, airflow exchange between the inside of the motor housing and the outside is achieved through the guide pipe. When the fan 4 is running, fluid exchange with the outside is achieved through the guide pipe communicating with the motor housing, thereby achieving forced ventilation cooling of the fan motor 43. By setting up a motor cooling system with an internal circulation fan impeller 44 at the rear end of the motor 43 of the fan 4, the fan 4 operates and the motor 43 is cooled by forced ventilation through the guide hole 45, ensuring that the motor 43 can work for a long time and improving the service life of the fan.

[0054] The second type of cooling mechanism includes a water spray system 9, which rapidly cools the flue gas entering the internal exhaust pipe 8, especially the flue gas entering the fan 4. The water spray system 9 has a spray pipe 91 and a drain pipe 92. The inlet end of the spray pipe 91 is connected to a water source, and the outlet end of the spray pipe 91 is equipped with multiple nozzles 93. The bottom of the internal exhaust pipe 8 is equipped with a drain outlet, which is located at the bottom of the fan 4's cover 41. A drain drain is installed at the drain outlet. The bottom plate 15 of the machine room enclosure cylinder 1 is equipped with a drain outlet 151. The two ends of the drain pipe 92 are connected to the drain outlet and the drain outlet 151, respectively. The drain outlet 151 is connected to the building drainage pipe 92 through an external water pipe.

[0055] In one alternative embodiment, the nozzles 93 are arranged inside the shroud 41 of the fan 4, and multiple nozzles 93 can spray water toward the fan from different directions; and / or, the nozzles 93 are arranged in the upstream exhaust duct 81 of the fan. Here, upstream refers to the relative position in the direction of flue gas flow; the direction facing the flue gas is upstream, and the direction away from the flue gas after it flows is downstream, that is, the area between the nozzles 93 and the smoke inlet on the end cover wall 2.

[0056] A water spray system 9 is used to cool the flue gas entering the exhaust pipe 8 inside the machine room. The spray water pipe 91 has a diameter of DN32 and is made of plastic-lined steel pipe. The water pressure of the spray water pipe 91 is not less than 0.1MPa. The nozzle end of the spray water pipe 91 uses a closed-type temperature-sensing nozzle 93 with an operating temperature of 68℃. The flow rate of a single nozzle 93 is 2 L / s, and four nozzles 93 can be installed. A DN50 drain is installed at the bottom of the fan shroud 41, which is connected to the building drainage pipe 92 via a quick connector to lead to the drainage point. The water spray system 9 can reduce the flue gas temperature to 70℃, ensuring long-term operation of the fan. For example, reducing the flue gas temperature from 280℃ to 70℃ with an air volume of 36000m³ / h... 3 Based on the calculation of the / h fan, the required heat dissipation for flue gas is 2545 kW. Taking a cooling nozzle 93 with a single flow rate of 2 L / s and a total of 4 nozzles 93 as an example, without considering the latent heat of vaporization, it can provide 2675 kW of heat absorption, which can meet the flue gas cooling requirements and ensure the long-term operation of the fan; by spraying water to cool down, the temperature inside the machine room can be kept below 70℃, which can meet the long-term reliable operation of the electrical compartment 7.

[0057] In this embodiment, as Figure 27 As shown, the fan 4 is suspended in the machine room by the anti-vibration bracket 42. The anti-vibration bracket 42 is configured to reduce vibration and ensure that the fan maintains stable operation under special conditions such as earthquakes or strong vibrations.

[0058] Specifically, see Figure 28 The seismic bracing 42 includes a spring 421, a metal adapter 422, a first vertical metal rod 423, a support plate 424, and a second vertical metal rod 425. The metal adapter 422 is hollow and has a top wall and a bottom wall. The top wall has a first through hole, and the bottom wall has a second through hole. The first vertical metal rod 423 passes through the first through hole and can move along the centerline of the first through hole. The top of the first metal rod is fixedly connected to the top plate 16 of the machine room or to the structural floor slab 200. The first metal rod is fixedly connected to the center of the support plate 424. The spring 421 is sleeved on the first metal rod, with the top end of the spring 421 abutting against the top wall and the bottom end of the spring 421 abutting against the support plate 424. The top end of the second vertical metal rod 425 passes through the second through hole and is fixedly connected to the bottom wall by a nut. The bottom end of the second vertical metal rod 425 is connected to the cover 41 of the fan 4. The axes of the first vertical metal rod 423 and the second vertical metal rod 425 are collinear.

[0059] In one alternative embodiment, the machine room enclosure cylinder 1, the first end cap 21, and the second end cap 22 can all be made of 120mm thick ultra-high performance UHPC concrete. By setting a SiO2 aerogel layer 6 on the inner wall surface, its fire resistance limit is not less than 2 hours. The concrete outer wall has the characteristics of high strength, high toughness, and the same lifespan as the main structure.

[0060] In one alternative embodiment, the computer room maintenance door 3 is a fire door of F2 level or above, or it can be made of ultra-high performance UHPC concrete, and the inner wall surface is provided with a SiO2 aerogel layer 6.

[0061] In one alternative embodiment, the two ends of the machine room structure 100 perpendicular to the flue gas flow direction can be set to an arc shape or a circle shape, that is, the right angle is changed to an arc structure to effectively save space; in addition, a 600mm wide maintenance passage is left on both sides of the fan in the machine room structure 100 for daily inspection and maintenance.

[0062] In this embodiment, the UHPC prefabricated computer room structure also includes an electrical compartment 7, which is located in the space between the inner wall of the computer room enclosure cylinder 1 and the outer wall of the internal smoke exhaust pipe 8.

[0063] In one alternative embodiment, a fire detection system is installed in the computer room, including a smoke detector. The smoke detector detects fire alarm signals in the computer room. A fire alarm telephone is installed in the computer room, and the fire signal is connected to the automatic fire alarm system in the building.

[0064] In one alternative embodiment, the computer room is equipped with a lighting system, which includes lighting fixtures and lighting switch to meet the requirements of normal lighting and backup lighting in the computer room. The power supply is provided by the fire emergency lighting in the fire compartment of the building.

[0065] In one alternative embodiment, the UHPC prefabricated computer room structure is also equipped with a power distribution system, with a reserved fan power distribution circuit interface in the computer room, which is connected to the smoke exhaust fan control box in the fire compartment inside the building to provide power to the fan.

[0066] Compared with existing technologies, the UHPC prefabricated data center structure provided in this embodiment can achieve the following beneficial effects: 1. Ultra-high performance concrete (UHPC) is used as the main structure of the computer room. UHPC itself has high strength, high durability, and strong plasticity (decorative properties). UHPC itself has certain fire resistance and is thin and lightweight, without any other skeleton. The computer room structure uses UHPC shell, which also serves as the external cladding material of the computer room structure 100, undertaking the functions of enclosure, decoration, structural load-bearing and some fire protection, thus achieving the integration of building structure, decoration and function.

[0067] 2. This application innovatively combines UHPC material with SiO2 aerogel layer, utilizing the structural strength and initial fire barrier function of UHPC, and superimposed with the super thermal insulation performance of aerogel to form a "1+1>2" fire protection effect. It can effectively block heat transfer to the core of the structure, protect internal equipment and maintain the integrity of the structure under fire, and achieve the fire protection requirement of at least 2 hours.

[0068] 3. The fire ventilation equipment room, constructed using ultra-high performance precast concrete components, meets the specifications and provides a new structural form and approach for improving the utilization efficiency of underground parking garages. It solves the problems of the difficulty in flexibly arranging fully cast-in-place fire exhaust equipment rooms and the large amount of building area they occupy. The equipment room structure of this invention can be hoisted above the parking spaces in the underground parking lot while maintaining a clear height of not less than 2200mm. It does not occupy building area or change the original function, and has very considerable economic benefits.

[0069] 4. The various parts of the computer room structure adopt a prefabricated component system and prefabrication assembly technology to achieve factory standardization, industrialization, and integrated use functions. This not only ensures production quality and has strong structural stability, but also allows for customization of different appearance structures and integrated decorative functions, which greatly improves the quality and efficiency of the construction process.

[0070] 5. The application of the UHPC prefabricated computer room structure of this invention does not affect the progress of other main construction processes. Installation and setup can be carried out at any stage. If the plan is changed, it can greatly save economic costs, improve construction efficiency, and accelerate the overall construction progress. Implementing this invention not only reduces the operating and renovation costs of buildings, but also puts the concept of "green, healthy, and intelligent" livability into practice from the very core of the building, truly supporting the continuous evolution and development of "good houses" and "good communities" in the coming decades.

[0071] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A UHPC fabricated machine room structure, characterized in that, The utility model relates to a prefabricated machine room structure, comprising: a machine room enclosure barrel body (1) having a bottom plate (15) and two side walls vertically connected with the bottom plate (15) and parallel to the bottom plate (15), the machine room enclosure barrel body (1) having a first opening end (13) and a second opening end (14) oppositely arranged at the two ends in the horizontal direction respectively; an end cover side wall (2) having a first end cover (21) and a second end cover (22) arranged at the first opening end (13) and the second opening end (14) respectively, the first end cover (21) and the second end cover (22) each being provided with a smoke suction and exhaust port (23) for being connected with a ventilation duct (300); a machine room maintenance door (3) arranged on one of the side walls; an internal smoke exhaust pipeline (8) arranged in an internal space formed by the machine room enclosure barrel body (1) and the first end cover (21) and the second end cover (22), the two ends of the internal smoke exhaust pipeline (8) being connected with the smoke suction and exhaust ports (23) on the first end cover (21) and the second end cover (22) respectively, and a fan (4) being arranged on the internal smoke exhaust pipeline (8); wherein the machine room enclosure barrel body (1), the first end cover (21), the second end cover (22) and the machine room maintenance door (3) are all prefabricated from ultra-high performance concrete (UHPC) material.

2. The UHPC fabricated machine room structure according to claim 1, characterized in that, The inner walls of the machine room enclosure barrel body (1), the first end cover (21), the second end cover (22) and the machine room maintenance door (3) are each provided with a SiO2 aerogel layer (6).

3. The UHPC fabricated machine room structure according to claim 2, characterized in that, A connecting structure (5) is further provided, and the UHPC prefabricated machine room structure is hung below a structural floor (200) through the connecting structure (5).

4. The UHPC fabricated machine room structure according to claim 3, characterized in that, The machine room enclosure barrel body (1) is further provided with a top plate (16); The top plate (16) is provided with a plurality of first connecting holes (1601), the connecting structure (5) comprises a connecting screw rod, the top end of the connecting screw rod is detachably connected or pre-buriedly connected with the structural floor (200), the bottom end of the connecting screw rod can be aligned with and pass through the first connecting holes (1601) on the top plate (16), and the screw rod is locked by a nut in the machine room to achieve the hanging of the machine room structure. Alternatively, a horizontal flange (541) is reserved on the side of the top plate (16), and the horizontal flange (541) is integrally poured with the surrounding structural floor (200).

5. The UHPC fabricated machine room structure according to claim 4, characterized in that, The connecting screw rod is a first fixing bolt, a plurality of first fixing bolts extending downward are pre-buried at corresponding positions on the structural floor (200), the first fixing bolts can be aligned with and pass through the first connecting holes (1601) on the top plate (16), and the first fixing bolts are locked by nuts to achieve the hanging of the machine room structure. Alternatively, the connecting screw rod is a hook screw rod (51), the top end of the hook screw rod (51) is provided with a hook portion (511), a hook matching portion matched with the hook portion (511) is pre-buried on the bottom surface of the structural floor (200), the bottom end of the hook screw rod (51) can be aligned with and pass through the first connecting holes (1601) on the top plate (16), and the hook screw rod (51) is locked by a locking nut (512) to achieve the hanging of the machine room structure.

6. The UHPC fabricated machine room structure according to claim 3, wherein, The connecting structure (5) comprises a prefabricated composite slab (52) serving as a top plate (16) of the machine room enclosure barrel (1) ; the prefabricated composite slab (52) has truss reinforcement which is integrally formed with the structural floor (200).

7. The UHPC fabricated machine room structure according to claim 3, wherein, The machine room enclosure barrel (1) is provided with an opening at the top, and the top end solid surfaces of the machine room enclosure barrel (1), the first end cover (21) and the second end cover (22) constitute a connecting end surface; The connecting structure (5) comprises a pre-embedded connecting piece which is pre-embedded on the machine room enclosure barrel (1), the first end cover (21) and the second end cover (22) and protrudes upward from the connecting end surface; The part of the pre-embedded connecting piece protruding from the connecting end surface is integrally formed with the concrete structural floor (200) when the concrete structural floor (200) is cast.

8. The UHPC fabricated machine room structure according to claim 7, characterized in that, The pre-embedded connecting piece comprises one or more of a U-shaped hoop (53), a flange (54) and a stud (55) in combination; The U-shaped closed end of the U-shaped hoop (53) is arranged upward; The exposed part of the flange (54) is bent outward by 90 degrees; alternatively, two rows of flanges (54) are arranged to form a hoop, one row of which is bent inward by 90 degrees and the other row of which is bent outward by 90 degrees.

9. The UHPC fabricated machine room structure according to claim 3, characterized in that, The connecting structure (5) comprises a first steel plate (56), a second steel plate (57) and a first angle steel (58) ; The top end outer wall surface of the machine room enclosure barrel (1), the first end cover (21) and the second end cover (22) is provided with the first steel plate (56) ; the corresponding position of the bottom surface of the structural floor (200) is pre-embedded with the second steel plate (57), and the two vertical steel planes of the first angle steel (58) are welded with the first steel plate (56) and the second steel plate (57) respectively, so as to realize the fixed suspension of the machine room structure.

10. The UHPC fabricated machine room structure of claim 1, wherein, The machine room enclosure barrel (1) is an integral structure cast by formwork erection process; alternatively, the machine room enclosure barrel (1) is produced by centrifugal method.

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