Fabricated station building and construction method

Abstract

The invention discloses an assembly type station building and a construction method. The assembly type station building comprises a vertical beam and a connecting beam, and the vertical beam is provided with a first connecting joint; the first connecting node comprises a node support, a node pivot and a node connecting seat, the node support is fixedly connected to the vertical beam, the node pivot is horizontally arranged on the node support, and the node connecting seat is rotationally connected to the node pivot; the bottom of the node connecting seat is supported by the node support to be kept at a set angle, and the node connecting seat can be overturned upwards from the set angle; and due to the characteristic that the node connecting seat can be overturned upwards from a set angle, a structurally allowable space is provided for position fine adjustment in the construction process, and forced assembly caused by component manufacturing errors or hoisting deviation is avoided. The node support provides stable bottom support for the node connecting seat in the use stage, so that the assembling efficiency is improved, and meanwhile, the bearing reliability of the structure is considered. And therefore, the dependence on heavy hoisting equipment can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of railway station building technology, specifically relating to a prefabricated station building and its construction method. Background Technology

[0002] During the daily operation of passenger transport hubs and conventional railway stations, the station building structure is constantly subjected to a complex and ever-changing service environment. On the one hand, external natural environmental factors such as temperature changes, wind loads, and rain and snow erosion continuously act on the building's external envelope and main frame; on the other hand, the station building must also withstand the micro-vibrations caused by train operation, the live loads generated by large passenger flows, and the dead loads of various equipment and facilities. This dual stress state, with both internal and external forces, places extremely stringent requirements on the load-bearing capacity, stability, and durability of the station building structure.

[0003] In traditional railway station construction, the main structure typically employs cast-in-place reinforced concrete beam systems. While this approach is widely used in engineering practice, its inherent drawbacks are also quite apparent. Cast-in-place construction relies on a series of procedures, including on-site formwork, rebar tying, concrete pouring, and curing. The process is complex and interconnected, and delays can occur at any stage due to weather, site conditions, or manpower factors. This is particularly problematic in the renovation and expansion of passenger and freight railway stations or existing passenger hubs, where prolonged wet work not only extends the overall construction period but also significantly disrupts the station's normal operations. To overcome the limitations of traditional construction methods, steel structure buildings, with their significant advantages of industrialized component processing and on-site assembly, are gradually becoming an important technological choice for railway station construction.

[0004] In publicly available existing technical solutions, the connection of steel structure beams mainly relies on high-strength bolts for node locking, thereby forming an overall frame with rigid support capabilities. While this type of structure theoretically meets the basic requirements of station buildings for load-bearing capacity and stiffness, it faces significant technical obstacles in actual construction. Because steel structure components require precise hole alignment and bolt tightening after hoisting into place, the steel structure beams need to be precisely hoisted between two steel structure components. Due to construction errors, the placement of the steel structure beams is difficult, and hoisting equipment must continuously maintain the beams at the design elevation and axis position for extended periods, preventing timely release of mechanical resources. This not only leads to low turnover efficiency of large lifting equipment but also increases the difficulty of construction organization and scheduling. Especially in high-altitude operations or renovation projects with narrow work areas, the precise adjustment and maintenance of beam positioning is even more challenging, thus affecting the overall construction progress.

[0005] Furthermore, from the perspective of structural service performance, the stability of existing bolted steel beam systems under long-term complex loads also presents concerns. Passenger hubs, as densely populated public buildings, must not only withstand static loads but also cope with periodic impacts and vibrations caused by trains entering and leaving the station, instantaneous overload during peak passenger flow periods, and the impact of occasional extreme weather. Under the repeated action of these high-intensity, alternating loads, stress concentration easily occurs in the bolted joint area, and the preload of the connection pairs may loosen, leading to a degradation of the overall structural stiffness. Over time, the collaborative performance of the beam system will be weakened, and the integrity and safety reserves of the system will face potential risks. If optimization is not achieved at the level of connection construction and construction technology, the applicability of this type of technical solution in railway station building projects with high standards and long service life requirements will be limited.

[0006] In summary, optimizing the connection methods and construction process of steel structures while ensuring structural load-bearing capacity, reducing reliance on heavy hoisting equipment, improving assembly efficiency, and ensuring the fatigue resistance and overall stiffness of nodes under long-term dynamic loads have become key issues that urgently need to be addressed in the field of passenger transport hub station construction technology. Summary of the Invention

[0007] To address the problems existing in the prior art, the present invention provides a prefabricated station building and its construction method.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A prefabricated station building includes a steel structure frame, the steel structure frame including vertical beams and connecting beams connecting the vertical beams, and the vertical beams are provided with a first connecting node; The first connection node includes a node support, a node pivot, and a node connector. The node support is fixedly connected to the vertical beam, the node pivot is horizontally disposed on the node support, and the node connector is rotatably connected to the node pivot. The bottom of the node connector is supported by the node support and held at a set angle, and can be flipped upward from the set angle. When the node connector is flipped upward, the vertical distance from the end of the node connector away from the vertical beam to the vertical beam is less than the vertical distance to the vertical beam at the set angle. The connecting beam is connected to the end of the node connecting seat away from the vertical beam.

[0009] In some possible implementations, a damping ring is provided between the node pivot and the node connector, so that the node connector can maintain an upward flipped posture when no external force is applied.

[0010] In some possible implementations, the first connection node further includes a damping spring disposed on the node support and supporting the node connection seat, so that the node connection seat remains in an upward flipped posture when no external force is applied.

[0011] In some possible implementations, the first connecting node further includes a first pin, a keyway is provided on the outer periphery of the node pivot, and a corresponding groove is provided on the node connecting seat. When the node connecting seat is at the set angle, the groove aligns with the keyway and together defines a first pin hole that can accommodate the first pin. The first pin can be inserted into the first pin hole to limit the angle of the node connecting seat.

[0012] In some possible implementations, a first flange plate is provided on the side of the node connector away from the node support. When the node connector is at the set angle, the plate surface of the first flange plate is inclined upward, and a tenon is provided protruding from the lower half of the plate surface of the first flange plate. The end of the connecting beam is provided with a second flange plate. The plate surface of the second flange plate is inclined downward, and the inclination angle is complementary to the inclination angle of the first flange plate. The lower half of the plate surface of the second flange plate is provided with a tenon groove, and the tenon groove matches the size of the tenon. The tenon is inserted into the mortise.

[0013] In some possible implementations, the tenon is provided with a second pin hole, and the connecting beam is provided with a third pin hole passing through the mortise, with the second pin hole aligned with the third pin hole; The first connection node further includes a second pin, which is inserted into the second pin hole and the third pin hole.

[0014] In some possible implementations, the third pin hole is larger than the second pin hole; The second pin includes a pin body and a locking pin. One end of the pin body is provided with an adjustment groove, and the axis of the pin body is provided with an adjustment hole. The locking pin is threaded to the adjustment hole. When the pin body is inserted into the second pin hole and the third pin hole, the locking pin can enter the adjusting groove from the adjusting hole to force the end of the pin body to open.

[0015] In some possible implementations, the connecting beam comprises multiple beam segments, and a second connecting node is provided between two adjacent beam segments, the second connecting node comprising: A first splicing seat is connected to the end of the first beam segment, and a first splicing joint is provided at the end of the first splicing seat away from the beam segment; The second splicing seat is connected to the end of the second beam segment. A second splicing joint is provided at the end of the second splicing seat away from the beam segment. The second splicing joint and the first splicing joint form a tenon and mortise structure that fits into each other. A fourth pin hole is defined between the second splicing joint and the first splicing joint. The third pin is inserted into the fourth pin hole, and the third pin is configured as a radial energy-absorbing structure; A pull rod, which connects the first splicing base and the second splicing base.

[0016] In some possible implementations, a third connection node is provided at the upper end of the vertical beam, the third connection node serving to provide an installation foundation, the third connection node comprising: A first mounting plate is fixedly mounted on the upper end of the vertical beam. An energy-absorbing spindle is vertically mounted at the center of the first mounting plate, and a disc spring is mounted on the energy-absorbing spindle. The first mounting plate is also provided with a first limiting sleeve, which is coaxially distributed on the outside of the energy-absorbing spindle. A second mounting plate is abutted against the upper end of the energy-absorbing spindle, and a second limiting sleeve is provided on the lower end surface of the second mounting plate. The second limiting sleeve is coaxially distributed on the outside of the first limiting sleeve. An energy-absorbing connector is radially connected between the first mounting plate and the second mounting plate along the energy-absorbing spindle, and multiple energy-absorbing connectors are arranged around the energy-absorbing spindle.

[0017] A construction method for prefabricated station buildings, used for constructing prefabricated station buildings, includes: Transport the vertical beams and connecting beams to the construction site; Install the vertical beam and install the first connecting node at the upper end of the vertical beam; Adjust the node connector of the first connecting node to flip upwards at a certain angle; The connecting beam is hoisted between the two vertical beams and above the node connecting seat; The connecting beam is lowered, and its position is manually adjusted during the lowering process to ensure that it smoothly abuts the node connecting seat. During the lowering process, the node connecting seat is pressed down to a set angle by its own weight, and finally the connecting beam is fixed.

[0018] The beneficial effects of this invention are: The core of this prefabricated station building lies in the cantilever installation of the connecting beam through the rotational cooperation of the node support, node pivot, and node connector, as well as the support relationship between the node support and the bottom of the node connector at a set angle. This structure allows the connecting beam to first pass over the node connector at a higher position during hoisting, and then be lowered into place using its own weight, significantly reducing the reliance on precise positioning by hoisting equipment. Simultaneously, the node connector's ability to rotate upwards at a set angle provides structural space for fine-tuning during construction, avoiding forced assembly due to component manufacturing errors or hoisting deviations. Furthermore, during use, the node connector is provided with stable bottom support by the node support, ensuring a reliable force transmission path when the node bears vertical loads, thus improving assembly efficiency while ensuring structural load-bearing reliability. This further helps reduce reliance on heavy hoisting equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a connection between a vertical beam and a connecting beam. Figure 2 This is a schematic diagram of one installation of the first connection node; Figure 3 This is a schematic diagram of the first connection node before the connection beam is installed. Figure 4 This is an exploded schematic diagram of the node connector and the connecting beam. Figure 5 This is a schematic diagram of a connection between a node connector and a connecting beam. Figure 6 A schematic diagram of a structure for a second connecting node; Figure 7 A schematic diagram of a structure for a third connecting node; Among them, 100 is the vertical beam; 200 is the connecting beam; 300. First connection node; 3001, Node support; 3002, Node pivot; 30021, Keyway; 3003, Node connector; 3004, First pin hole; 3005, Tenon; 30051, Riveting recess; 3006, Mortise and tenon; 3007, Pin body; 3008, Locking pin; 400, Third connection node; 401. First mounting plate; 402. Energy-absorbing mandrel; 403. Disc spring; 404. First limiting sleeve; 405. Second mounting plate; 406. Second limiting sleeve; 407. Energy-absorbing connector; 500, Second connection node; 501, First splicing seat; 502, Second splicing seat; 503, Third pin; 504, Pull rod. Detailed Implementation

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., 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 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. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] The present invention will now be described in detail.

[0022] Example 1 A prefabricated station building includes a steel structure frame, which comprises multiple vertical beams 100 and connecting beams 200 connecting the vertical beams 100. A first connection node 300 is provided between the vertical beams 100 and the connecting beams 200.

[0023] The first connecting node 300 includes a node support 3001, a node pivot 3002, and a node connecting seat 3003. The node support 3001 is fixedly connected to the vertical beam 100. The node pivot 3002 is horizontally arranged on the node support 3001. The node connecting seat 3003 is rotatably connected to the node pivot 3002. The bottom of the node connecting seat 3003 is supported by the node support 3001 and held at a set angle, and can be flipped upward from the set angle. When the node connector 3003 is flipped upwards, the vertical distance from the end of the node connector 3003 away from the vertical beam 100 to the vertical beam 100 is less than the vertical distance to the vertical beam 100 at the set angle. The connecting beam 200 is connected to the end of the node connector 3003 away from the vertical beam 100.

[0024] During hoisting, the connecting beam 200 can first pass over the node connecting seat 3003 at a higher position, and then be lowered into place using its own weight, significantly reducing the reliance on precise positioning by hoisting equipment. Simultaneously, the node connecting seat 3003's ability to flip upwards at a set angle provides structural allowance for fine-tuning its position during construction, avoiding forced assembly due to component manufacturing errors or hoisting deviations. Furthermore, during use, the node connecting seat 3003 is provided with stable bottom support by the node support 3001, ensuring a reliable force transmission path when the node bears vertical loads, thus improving assembly efficiency while maintaining structural load-bearing reliability. This further helps reduce reliance on heavy hoisting equipment.

[0025] A damping ring is provided between the node pivot 3002 and the node connector 3003, so that the node connector 3003 can maintain an upward flipped posture when no external force is applied; the damping ring is fitted on the outside of the node pivot 3002 to increase the friction between the node pivot 3002 and the node connector 3003, so that the node connector 3003 can maintain an upward flipped posture when no external force is applied.

[0026] Alternatively, the first connecting node 300 may also include a damping spring, which is mounted on the node support 3001 and supports the node connecting seat 3003, so that the node connecting seat 3003 remains in an upward-flipped position when no external force is applied. By keeping the node connecting seat 3003 flipped upward, it is convenient to hoist and connect the connecting beam 200.

[0027] After the connecting beam 200 is installed, either a damping ring or a shock-absorbing spring can be used to absorb energy and mitigate vibrations at the first connecting node 300, thereby improving the node's stability.

[0028] In some possible implementations, the first connecting node 300 further includes a first pin. A keyway 30021 is provided on the outer periphery of the node pivot 3002, and a corresponding groove 30031 is provided on the node connecting seat 3003. When the node connecting seat 3003 is at a set angle, the groove 30031 aligns with the keyway 30021 and together define a first pin hole 3004 that can accommodate the first pin. The first pin can be inserted into the first pin hole 3004 to limit the angle of the node connecting seat 3003.

[0029] With the node connector 3003 flipped upwards, the keyway 30021 and the groove 30031 are misaligned. When the set angle is reached, the connecting beam 200 is properly aligned. At this point, the first pin can be inserted into the first pin hole 3004, completely fixing the node connector 3003 and the node support 3001, eliminating the degree of freedom of the node connector 3003 and improving the stability of the node. This structure transforms a rotating node into a fixed node after construction, ensuring the geometric stability of the structure during use. Simultaneously, the pin connection method facilitates disassembly or maintenance, enabling the conversion between temporary fixation and permanent locking, thus accommodating different needs during construction and use.

[0030] The first pin hole 3004 is preferably set at a certain angle to prevent the first pin from coming out. The first pin can be made of steel with good elasticity and fixed in the first pin hole 3004 by interference fit to improve stability.

[0031] In some possible implementations, a first flange plate is provided on the side of the node connector 3003 away from the node support 3001. When the node connector 3003 is at a set angle, the surface of the first flange plate is inclined upwards, and a tenon 3005 protrudes from the lower half of the surface of the first flange plate. A second flange plate is provided at the end of the connecting beam 200. The surface of the second flange plate is inclined downwards, and the inclination angle is complementary to the inclination angle of the first flange plate. A tenon 3006 is recessed in the lower half of the surface of the second flange plate, and the dimensions of the tenon 3006 match those of the tenon 3005.

[0032] When the node connector 3003 is flipped upwards, the surface of the first flange plate remains aligned vertically with the second flange plate. This allows for automatic alignment during the lowering of the connecting beam 200 through the interaction of the first and second flange plates. Simultaneously, the tenon 3005, embedded in the mortise 3006, supports the connecting beam 200, preventing excessive lowering and ensuring efficiency. The complementary inclined surface design of the two flange plates (first and second flange plates) causes the connecting beam 200 to tend to press against the node connector 3003 under its own weight, enhancing the tightness of the connection. The mechanical engagement of the tenon 3005 and the mortise 3006 forms a crucial shear-resistant structure, playing a vital role in bearing shear forces at the beam ends and effectively reducing the shear burden on the connecting bolts or pins. This multi-force transmission mechanism, with its surface-to-surface contact and interlocking convex-concave structure, significantly improves the integrity and collaborative working ability of the connection area.

[0033] In some possible implementations, the tenon 3005 is provided with a second pin hole, and the connecting beam 200 is provided with a third pin hole passing through the mortise 3006. During assembly, the second pin hole is aligned with the third pin hole, i.e., the two are coaxially connected. The first connecting node 300 also includes a second pin, which is inserted into the second pin hole and the third pin hole. By aligning the second pin hole on the tenon 3005 with the third pin hole on the connecting beam 200 and inserting the second pin, rigid constraint is achieved between the tenon 3005 and the mortise 3006 in the insertion direction, preventing them from separating under external forces. This structure complements the mortise and tenon joint, where the mortise and tenon mainly bears shear force, while the second pin mainly bears tensile force to prevent separation. The combined effect of both makes the connecting node more reliable and has a higher safety redundancy when subjected to complex stress conditions.

[0034] In some possible implementations, the third pin hole is larger than the second pin hole. The second pin includes a pin body 3007 and a locking pin 3008. One end of the pin body 3007 is provided with an adjustment groove, and the axis of the pin body 3007 is provided with an adjustment hole. The locking pin 3008 is threaded to the adjustment hole. When the pin body 3007 is inserted into the second and third pin holes, the locking pin 3008 can enter the adjustment groove from the adjustment hole, forcing the end of the pin body 3007 to open. This expandable pin structure can effectively eliminate the fit gap between the pin and the pin hole, avoiding initial slippage and impact caused by the existence of gaps. At the same time, the opened end forms an interference fit in the pin hole, enhancing the pin's pull-out resistance and making it less prone to loosening even under long-term vibration, significantly improving the durability of the connection.

[0035] In some possible implementations, the upper end face of the tenon 3005 is recessed to form a riveting recess 30051 on the side near the first flange plate, and the connecting beam 200 has a corresponding riveting protrusion at the top position of the mortise 3006, which is embedded in the riveting recess 30051. In this way, the node connecting seat 3003 and the connecting beam 200 achieve vertical and lateral load bearing through the cooperation of the tenon 3005 and the mortise 3006, and achieve tensile force bearing through the cooperation of the riveting recess 30051 and the riveting protrusion, effectively reducing the radial load on the second pin. This allows for rapid assembly.

[0036] In some possible implementations, the connecting beam 200 includes multiple beam segments, and a second connecting node 500 is provided between two adjacent beam segments to connect the beam segments, thereby forming the connecting beam 200; the second connecting node 500 includes: The first splicing seat 501 is connected to the end of the first beam segment, and the first splicing joint 5011 is provided at the end away from the beam segment; The second splicing seat 502 is connected to the end of the second beam segment. The end of the second splicing seat 502 away from the beam segment is provided with a second splicing joint 5021. The second splicing joint 5021 and the first splicing joint 5011 form a tenon and mortise structure that fits into each other. A fourth pin hole is defined between the second splicing joint 5021 and the first splicing joint 5011. The third pin 503 is inserted into the fourth pin hole, and the third pin 503 is configured as a radial energy-absorbing structure. Pull rod 504 is connected between the first splicing seat 501 and the second splicing seat 502.

[0037] The system employs a combination of mortise and tenon joints, a radial energy-absorbing third pin 503, and a tie rod 504. The mortise and tenon joints ensure basic alignment and force transmission at the joint, while the radial energy-absorbing third pin 503 absorbs energy through deformation under lateral impact, protecting the main structure. The tie rod 504 further enhances the integrity of the joint, allowing the two beam segments to work collaboratively under bending moments. This multi-layered joint construction ensures stiffness under conventional loads while providing energy dissipation capacity under extreme loads. Simultaneously, the third pin 503 applies an outward pushing force between the two joints, and the tie rod 504 applies opposing tensile forces, creating tension balance. This simultaneously meets the energy absorption requirements for tension and compression along the length of the connecting beam 200, reducing the force on the vertical beam 100.

[0038] In some possible implementations, a third connection node 400 is provided at the upper end of the vertical beam 100, the third connection node 400 serving to provide an installation foundation. The third connection node 400 includes: The first mounting plate 401 is fixedly mounted on the upper end of the vertical beam 100. The energy-absorbing spindle 402 is vertically mounted at the center of the first mounting plate 401, and a disc spring 403 is fitted on the outer side of the energy-absorbing spindle 402. The first mounting plate 401 is also provided with a first limiting sleeve 404, which is coaxially distributed on the outer side of the energy-absorbing spindle 402. The second mounting plate 405 abuts against the upper end of the energy-absorbing spindle 402. The lower end face of the second mounting plate 405 is provided with a second limiting sleeve 406, which is coaxially fitted onto the outside of the disc spring 403. The two ends of the disc spring 403 abut against the first mounting plate 401 of the second mounting plate 405. Energy-absorbing connector 407 is radially connected between the first mounting plate 401 and the second mounting plate 405 along the energy-absorbing spindle 402, and multiple energy-absorbing connectors 407 are arranged around the energy-absorbing spindle 402.

[0039] The second mounting plate 405 provides support, and the corresponding components can be connected to the upper end of the second mounting plate 405.

[0040] The second limiting sleeve 406 has a limiting hole on its outer side that corresponds to the energy-absorbing connector 407, and the end of the energy-absorbing connector 407 abuts against the limiting hole.

[0041] The fitting relationship between the two limiting sleeves can be interchanged and is not limited.

[0042] The combination of the energy-absorbing spindle 402 and the disc spring 403 provides vertical elastic support and energy dissipation capability, while multiple energy-absorbing connectors 407 distributed radially can cope with horizontal loads from different directions. The coaxial distribution of the inner and outer limiting sleeves (first limiting sleeve 406, second limiting sleeve 407) ensures the relative positional accuracy between components and provides limiting protection in case of excessive deformation. This node provides an installation foundation for the superstructure that combines load-bearing and energy dissipation functions, allowing loads transmitted from the roof or other superstructures to be effectively buffered.

[0043] Energy-absorbing connectors 407, energy-absorbing spindles 402, and tie rods 504 can be made of steel with different yield strengths.

[0044] Example 2 In this embodiment, the first connecting node 300 and the third connecting node 400 are fixed together. Specifically, the node support 3001 and the first mounting plate 401 are integrally formed.

[0045] Example 3 A construction method for prefabricated station buildings, used for constructing prefabricated station buildings, includes: Transport the vertical beam 100 and the connecting beam 200 to the construction site; Install the vertical beam 100, and install the first connecting node 300 at the upper end of the vertical beam 100; Adjust the node connector 3003 of the first connecting node 300 until it is flipped upward at a certain angle; After being flipped upwards, the angle formed between the node connector 3003 and the horizontal plane will be greater than the angle between the node connector 3003 and the horizontal plane after assembly. Furthermore, after being flipped upwards, the angle formed between the node connector 3003 and the horizontal plane is an acute angle; The hoisting connection beam 200 is placed between the two vertical beams 100, and is higher than the node connection seat 3003; Lower the connecting beam 200. During the lowering process, manually adjust the position of the connecting beam 200 so that it can smoothly abut against the node connecting seat 3003. During the lowering process, use its own weight to press the node connecting seat 3003 down to the set angle, and finally fix the connecting beam 200.

[0046] The core of this construction method lies in utilizing the flip-up characteristic of the node connector 3003 to break down the traditional hoisting and alignment process into multiple steps: flipping, raising, lowering, and pressing down. By flipping up the node connector 3003, space is created for the hoisting of the connecting beam 200, allowing it to move horizontally to the installation area while above its final position. Then, it is naturally positioned through lowering and gravity pressing. This process transforms precise high-altitude docking into rough low-altitude alignment and automatic gravity adjustment, significantly reducing the precision requirements for construction personnel and the need for auxiliary traction equipment, effectively improving construction efficiency while ensuring installation quality.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A prefabricated station building, characterized in that, It includes a steel structure frame, the steel structure frame including vertical beams and connecting beams connecting the vertical beams, and the vertical beams are provided with a first connecting node; The first connection node includes a node support, a node pivot, and a node connector; the node support is fixedly connected to the vertical beam, the node pivot is horizontally disposed on the node support, the node connector is rotatably connected to the node pivot, and the bottom of the node connector is supported by the node support and held at a set angle, and can be flipped upward from the set angle. When the node connector is flipped upward, the vertical distance from the end of the node connector away from the vertical beam to the vertical beam is less than the vertical distance to the vertical beam at the set angle. The connecting beam is connected to the end of the node connecting seat away from the vertical beam.

2. The prefabricated station building according to claim 1, characterized in that, A damping ring is provided between the node pivot and the node connector, so that the node connector can maintain an upward flipped posture when no external force is applied.

3. The prefabricated station building according to claim 1, characterized in that, The first connection node also includes a shock-absorbing spring, which is disposed on the node support and supports the node connection seat, so that the node connection seat remains in an upward flipped posture when no external force is applied.

4. The prefabricated station building according to claim 1, characterized in that, The first connecting node further includes a first pin. A keyway is provided on the outer periphery of the node pivot, and a corresponding groove is provided on the node connecting seat. When the node connecting seat is at the set angle, the groove aligns with the keyway and together defines a first pin hole that can accommodate the first pin. The first pin can be inserted into the first pin hole to limit the angle of the node connecting seat.

5. The prefabricated station building according to claim 1, characterized in that, A first flange plate is provided on the side of the node connector away from the node support. When the node connector is at the set angle, the plate surface of the first flange plate is inclined upward, and a tenon is provided protruding from the lower half of the plate surface of the first flange plate. The end of the connecting beam is provided with a second flange plate. The plate surface of the second flange plate is inclined downward, and the inclination angle is complementary to the inclination angle of the first flange plate. The lower half of the plate surface of the second flange plate is provided with a tenon groove, and the tenon groove matches the size of the tenon. The tenon is inserted into the mortise.

6. The prefabricated station building according to claim 5, characterized in that, The tenon is provided with a second pin hole, and the connecting beam is provided with a third pin hole that passes through the mortise, with the second pin hole aligned with the third pin hole; The first connection node further includes a second pin, which is inserted into the second pin hole and the third pin hole.

7. The prefabricated station building according to claim 6, characterized in that, The third pin hole is larger than the second pin hole; The second pin includes a pin body and a locking pin. One end of the pin body is provided with an adjustment groove, and the axis of the pin body is provided with an adjustment hole. The locking pin is threaded to the adjustment hole. When the pin body is inserted into the second pin hole and the third pin hole, the locking pin can enter the adjusting groove from the adjusting hole to force the end of the pin body to open.

8. The prefabricated station building according to claim 1, characterized in that, The connecting beam comprises multiple beam segments, and a second connecting node is provided between two adjacent beam segments. The second connecting node includes: A first splicing seat is connected to the end of the first beam segment, and a first splicing joint is provided at the end of the first splicing seat away from the beam segment; The second splicing seat is connected to the end of the second beam segment. A second splicing joint is provided at the end of the second splicing seat away from the beam segment. The second splicing joint and the first splicing joint form a tenon and mortise structure that fits into each other. A fourth pin hole is defined between the second splicing joint and the first splicing joint. The third pin is inserted into the fourth pin hole, and the third pin is configured as a radial energy-absorbing structure; A pull rod, which connects the first splicing base and the second splicing base.

9. The prefabricated station building according to claim 1, characterized in that, A third connection node is provided at the upper end of the vertical beam. The third connection node is used to provide an installation foundation and includes: A first mounting plate is fixedly mounted on the upper end of the vertical beam. An energy-absorbing spindle is vertically mounted at the center of the first mounting plate, and a disc spring is mounted on the energy-absorbing spindle. The first mounting plate is also provided with a first limiting sleeve, which is coaxially distributed on the outside of the energy-absorbing spindle. A second mounting plate is abutted against the upper end of the energy-absorbing spindle, and a second limiting sleeve is provided on the lower end surface of the second mounting plate. The second limiting sleeve is coaxially distributed on the outside of the first limiting sleeve. An energy-absorbing connector is radially connected between the first mounting plate and the second mounting plate along the energy-absorbing spindle, and multiple energy-absorbing connectors are arranged around the energy-absorbing spindle.

10. A method for constructing a prefabricated station building, characterized in that, For construction of the prefabricated station building as described in claim 1, comprising: Transport the vertical beams and connecting beams to the construction site; Install the vertical beam and install the first connecting node at the upper end of the vertical beam; Adjust the node connector of the first connecting node to flip upwards at a certain angle; The connecting beam is hoisted between the two vertical beams and above the node connecting seat; The connecting beam is lowered, and its position is manually adjusted during the lowering process to ensure that it smoothly abuts the node connecting seat. During the lowering process, the node connecting seat is pressed down to a set angle by its own weight, and finally the connecting beam is fixed.

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