Method for Determining the Vibration Comfort Calculation Model of Long-Span Connecting Corridors

Abstract

This application provides a method for determining the vibration comfort calculation model of a long-span connecting corridor, belonging to the field of civil engineering technology. The method extracts independent connecting corridor and independent tower models from the connected building; performs modal analysis on the independent connecting corridor and independent tower models to determine the first-order vertical natural frequencies of the corridor and tower; calculates the relative height of the connecting corridor based on the corridor design parameters and determines the first connection method between the corridor and the tower; then calculates the tower-connecting corridor vertical stiffness ratio and the critical stiffness ratio value based on the first-order vertical natural frequencies of the corridor and tower; finally, based on the first-order vertical natural frequencies of the corridor, relative height, connection method, tower-connecting corridor vertical stiffness ratio, and critical stiffness ratio value, the corridor comfort calculation model is determined according to a preset model classification logic. This application considers the influence of tower-connecting corridor coupled vibration on corridor comfort, enabling the determined model to accurately predict corridor comfort.

Description

Technical Field

[0001] This application belongs to the field of civil engineering technology, specifically relating to a method for determining a vibration comfort calculation model for a long-span connecting corridor. Background Technology

[0002] Connecting corridors typically employ slender, elegant shapes and lightweight, high-strength steel structures. With advancements in structural design and construction technology, as well as the application of new building materials, connecting corridors have become lighter, more flexible, and have larger spans, resulting in characteristics such as low stiffness, low frequency, and low damping. Under normal human activity, large-span connecting corridors can easily generate significant vibrations, affecting people's work, daily life, and even health, and also impacting the normal functionality of buildings. In recent years, many connected buildings have faced difficulties in sales, leasing, and use due to vibration comfort issues, with some even requiring reinforcement, renovation, or demolition. Therefore, accurately assessing the vibration comfort of connecting corridors to avoid discomfort during normal use and to minimize the significant financial and material costs of vibration reduction modifications is of great social and practical significance.

[0003] In related technologies, to obtain simulation analysis results of the comfort of connecting corridors, current techniques extract the connecting corridor from the overall structure for separate analysis. The constraint boundary of the connecting corridor is simulated with the stiffness of fully restricted boundary nodes to reduce the structural degrees of freedom and improve computational efficiency. This method treats the tower as an absolutely rigid body and does not consider the impact of tower-connecting corridor coupled vibration on the comfort of the connecting corridor, which reduces the accuracy of the comfort prediction and makes it difficult to guarantee the vibration comfort of the connecting corridor during the service phase. Summary of the Invention

[0004] Therefore, this application provides a method for determining the vibration comfort calculation model of a long-span connecting corridor, which helps to solve the problem of reduced accuracy in the prediction of vibration comfort of connecting corridors in the existing technology.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides a method for determining the vibration comfort calculation model of a long-span connecting corridor, including: Separate the independent models of the target corridor and the target tower from the connected buildings; Modal analysis was performed on the independent corridor model and the independent tower model respectively to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower; Obtain the design parameters of the target corridor, calculate the relative height of the target corridor based on the design parameters, and determine the first connection method between the target corridor and the target tower; Based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower, the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio are calculated. Based on the first-order vertical natural frequency of the target corridor, the relative height of the target corridor, the first connection method between the corridor and the tower, the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio, the corridor comfort calculation model is determined according to the preset model classification logic; the corridor comfort calculation model is either an independent corridor comfort calculation model or a connected corridor comfort calculation model.

[0007] Furthermore, the process of extracting the independent corridor model of the target corridor and the independent tower model of the target tower from the connected building specifically includes: Extract the corridor structure of the target corridor from the overall structure of the connected building and use it as an independent corridor model; Based on the original actual connection method of the connecting corridor in the connected building, the stiffness of the boundary nodes is constrained to characterize the building structure's ability to resist structural deformation under the actual connection method; the stiffness includes translational stiffness and rotational stiffness. Remove the connecting corridor structure from the overall structure to obtain the same independent tower models at both ends of the target connecting corridor.

[0008] Furthermore, the constraint of boundary node stiffness based on the original actual connection method of the connecting corridor in the connected building specifically includes: If the original actual connection method of the connecting corridor in the connected building is a fixed connection, then constrain all stiffness of the boundary nodes; If the original actual connection method of the connecting corridor in the connected building is a sliding connection, then constrain the rotational stiffness of the boundary nodes; if the original actual connection method of the connecting corridor in the connected building is a fixed hinged connection, then constrain the translational stiffness of the boundary nodes.

[0009] Furthermore, the modal analysis performed on the independent corridor model and the independent tower model to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower specifically includes: Modal analysis was performed on the independent connecting corridor model to obtain the first-order vertical natural frequency of the target connecting corridor. ; Modal analysis was used to perform modal analysis on the independent tower model at either end of the target corridor, and the first-order vertical natural frequency of the target tower at the connection point of the corridor was obtained. .

[0010] Furthermore, the process of obtaining the design parameters of the target connecting corridor, calculating the relative height of the target connecting corridor based on the design parameters, and determining the first connection method between the target connecting corridor and the target tower specifically includes: Obtain the design parameters of the connecting corridor, including the height of the top floor of the connecting corridor from the ground. Tower structural height The types of connecting corridor supports include welding, bolted connections, lead-core rubber supports, friction pendulum supports, and spherical supports. The height of the top floor of the connecting corridor from the ground Divide by the height of the tower structure To obtain the relative height of the connecting corridor x The specific formula is as follows: ; Based on the form of the connecting corridor support, the first connection method between the connecting corridor and the tower is determined, specifically including: If the support structure of the connecting corridor is welded and bolted, then the primary connection method between the connecting corridor and the tower is a fixed connection. If the support type of the connecting corridor is lead-core rubber support and friction pendulum support, then the first connection method between the connecting corridor and the tower is sliding connection; If the support for the connecting corridor is a spherical support, then the first connection method between the connecting corridor and the tower is a fixed hinge connection.

[0011] Further, the calculation of the tower-bridge vertical stiffness ratio and the critical value of the vertical stiffness ratio based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower includes: Based on the first-order vertical natural frequencies of the target corridor and the target tower, the quotient of the squares of the first-order vertical natural frequencies of the target corridor and the target tower is calculated to obtain the tower-corridor vertical stiffness ratio. The specific formula is as follows: ; The masses of the connecting corridor and the tower in a connected building are obtained, and the corridor-to-tower mass ratio is calculated. The stiffness ratio of the connecting corridor when its relative vertical natural frequency approaches 1 is defined as the critical value of the vertical stiffness ratio. Therefore, the influence of the tower stiffness on the vertical natural frequency of the connecting corridor has a critical value, which is related to the corridor-tower mass ratio. The equation for the critical value of the vertical stiffness ratio is solved based on the corridor-tower mass ratio, and the solved critical value of the vertical stiffness ratio is expressed as: ; The equation for the critical value of the vertical stiffness ratio is:

[0012] in, The vertical stiffness ratio of the tower to the connecting corridor; For the quality of the connecting corridor; For the quality of the tower.

[0013] Further, based on the first-order vertical natural frequency of the target corridor, the relative height of the target corridor, the first connection method between the corridor and the tower, the vertical stiffness ratio of the tower to the corridor, and the critical value of the vertical stiffness ratio, the corridor comfort calculation model is determined according to a preset model classification logic; the corridor comfort calculation model is an independent corridor comfort calculation model or a connected corridor comfort calculation model, including: Determine the first-order vertical natural frequency of the target corridor Is it greater than 3Hz? If the target corridor's vertical natural frequency is... And the relative height of the connecting corridor Then the comfort calculation model for the connecting corridor is the comfort calculation model for an independent connecting corridor; If the target corridor's vertical natural frequency If the relative height of the connecting corridor x > 0.2, then the comfort calculation model of the connecting corridor is determined based on the vertical stiffness ratio of the tower to the connecting corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency Furthermore, if there is a hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is determined based on the vertical stiffness ratio of the tower and the corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency If there is no hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is the independent corridor comfort calculation model.

[0014] Furthermore, the model for determining the comfort level of the connecting corridor based on the tower-corridor vertical stiffness ratio and the critical value of the vertical stiffness ratio includes: If the vertical stiffness ratio of the tower to the connecting corridor is less than the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the connecting corridor. If the vertical stiffness ratio of the tower to the connecting corridor is greater than or equal to the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the independent connecting corridor.

[0015] The application employs the above technical solution and has at least the following beneficial effects: This application provides a method for determining the vibration comfort calculation model of a long-span connecting corridor. The method extracts independent corridor models and independent tower models from the connected building, respectively. Modal analysis is then performed on the independent corridor and independent tower models to obtain the first-order vertical natural frequencies of the target corridor and tower. The relative height of the corridor is then calculated based on the corridor design parameters, and the first connection method between the corridor and the tower is determined. The method also considers the impact of tower-corridor coupled vibration on the corridor's comfort level, based on the target... The first-order vertical natural frequencies of the connecting corridor and the target tower are used to calculate the vertical stiffness ratio and critical value of the tower-connecting corridor. Finally, based on the first-order vertical natural frequency of the target connecting corridor, the relative height of the connecting corridor, the first connection method between the connecting corridor and the tower, the vertical stiffness ratio of the tower-connecting corridor and the critical value of the vertical stiffness ratio, the comfort calculation model of the connecting corridor is determined according to the preset model classification logic. This ensures that the final determined comfort calculation model of the connecting corridor can accurately predict the comfort of the connecting corridor and guarantee the vibration comfort of the connecting corridor during the use of the connected building.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a flowchart illustrating a method for determining a vibration comfort calculation model for a long-span connecting corridor, based on an exemplary embodiment. Figure 2 This is a flowchart illustrating a preset model classification logic according to an exemplary embodiment. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods consistent with some aspects of this application as detailed in the appended claims.

[0020] For ease of use, people will build an aerial corridor between two adjacent towers (buildings) to connect the two towers (buildings) in the air, which makes them connected buildings.

[0021] Figure 1This is a flowchart illustrating a method for determining a vibration comfort calculation model for a long-span connecting corridor, as shown in an embodiment of the present invention. The method in this application assumes that the connected building studied comprises two identical towers and a connecting corridor, wherein the two identical towers are connected by the connecting corridor. The method includes the following steps: S1. Separate the independent corridor model of the target corridor and the independent tower model of the target tower from the connected buildings; S2. Perform modal analysis on the independent corridor model and the independent tower model respectively to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower; S3. Obtain the design parameters of the target corridor, calculate the relative height of the target corridor based on the design parameters, and determine the first connection method between the corridor and the tower; S4. Based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower, calculate the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio. S5. Based on the first-order vertical natural frequency of the target corridor, the relative height of the corridor, the first connection method between the corridor and the tower, the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio, the corridor comfort calculation model is determined according to the preset model classification logic; the corridor comfort calculation model is an independent corridor comfort calculation model or a connected corridor comfort calculation model.

[0022] Furthermore, in this embodiment, the independent corridor model of the target corridor and the independent tower model of the target tower are extracted separately from the connected building, specifically including: Extract the corridor structure of the target corridor from the overall structure of the connected building and use it as an independent corridor model; Based on the original actual connection method of the connecting corridor in the connected building, the stiffness of the boundary nodes is constrained to characterize the building structure's ability to resist structural deformation under the actual connection method; the stiffness includes translational stiffness and rotational stiffness. Remove the connecting corridor structure from the overall structure to obtain the same independent tower models at both ends of the target connecting corridor.

[0023] Connecting corridors are a type of complex high-rise building structural system. They generally refer to the interconnection of two or more high-rise buildings via an elevated connecting structure to meet the requirements of architectural design and functionality. The connecting structure is the connecting corridor. Its span can be a few meters or tens of meters long. There may be one connecting corridor or several connecting corridors arranged vertically along the building. This application structurally extracts the target connecting corridor and the target tower to obtain independent connecting corridors and independent towers, which are also referred to as independent connecting corridors and independent towers in this application. A building is typically composed of different blocks. Blocks refer to the slabs, beams, and columns of the building interface. Through the extraction and abstraction (i.e., extraction) of building blocks, a unique architectural form is formed. The extraction of the target connecting corridor and the target tower in this application involves analyzing and extracting the functional areas (i.e., building blocks) of the connecting corridor and the tower in the connected building to form independent tower models and independent connecting corridor models. The specific extraction process can be implemented using existing technologies, and will not be elaborated upon in this application.

[0024] In some embodiments, after removing the target connecting corridor from the overall structure, independent tower models at both ends of the connecting corridor can be obtained, namely, independent models of Tower 1 and Tower 2. The towers at both ends of the connecting corridor studied in this scheme are identical; therefore, the first-order vertical natural frequencies of Tower 1 and Tower 2 are also the same. In determining the comfort calculation model for the connecting corridor, only the first-order vertical natural frequency of one of the independent tower models needs to be included in the calculation.

[0025] Specifically, based on the original actual connection method of the connecting corridors in the connected buildings, the stiffness of the boundary nodes is constrained, including: If the original actual connection method of the connecting corridor in the connected building is a fixed connection, then constrain all stiffness of the boundary nodes; If the original actual connection method of the connecting corridor in the connected building is a sliding connection, then constrain the rotational stiffness of the boundary nodes; If the original actual connection method of the connecting corridor in the connected building is a fixed hinged connection, then constrain the translational stiffness of the boundary nodes.

[0026] The original actual connection method of the connecting corridor refers to the actual connection between the corridor and the towers at both ends. Existing connection methods for high-rise buildings with connecting corridors mainly include: rigid connection (i.e., fixed connection), hinged connection (i.e., flexible connection), and sliding connection. Different connection methods place different requirements on the corridor structure. For example, a rigid connection requires the corridor itself to have high rigidity and strength, and to withstand large forces, allowing the towers connected at both ends to form a unified whole. Sliding connections are suitable for corridors with lower rigidity, reducing the forces borne by the corridor. Sliding connections are often used in locations with smaller spans and lower corridors. A flexible connection allows for displacement or rotation of the connected components, without restricting deformation in any particular direction; that is, it allows deformation of the building structures at both ends of the corridor.

[0027] This application constrains the boundary node stiffness based on the original actual connection method of the connecting corridor in the connected building, that is, it considers different translational and rotational node stiffnesses for connection methods such as hinged and fixed connections. Node stiffness represents the structure's ability to resist deformation. By constraining the translational and rotational node stiffness of a given building, the application characterizes the building structure's ability to resist structural deformation under different connection methods, providing data support for the stress and deformation analysis of the structure.

[0028] Furthermore, in this embodiment, modal analysis is performed on the target corridor model and the independent tower model respectively to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower, specifically including: Modal analysis was performed on the independent connecting corridor model to obtain the first-order vertical natural frequency of the target connecting corridor. ; Modal analysis was used to perform modal analysis on the independent tower model at either end of the target corridor, and the first-order vertical natural frequency of the target tower at the connection point of the corridor was obtained. Since the two tower models at both ends of the target corridor are identical, the modal analysis results of the two independent tower models are the same. It is only necessary to calculate the first-order vertical natural frequency of either end of the target corridor to obtain the first-order vertical natural frequency of the two independent tower models.

[0029] Modal analysis is the process of calculating or experimentally analyzing modal parameters such as natural frequencies, damping ratios, and mode shapes. Modal analysis is a modern method for studying the dynamic characteristics of structures and is an application of system identification methods in the field of engineering vibration. A mode is the inherent vibration characteristic of a mechanical structure, and each mode has a specific natural frequency, damping ratio, and mode shape. These modal parameters can be obtained through calculation or experimental analysis; such a calculation or experimental analysis process is called modal analysis. Existing modal analysis methods can be used. By inputting the independent corridor model and the independent tower model into the modal analysis method for parameter identification, the first-order vertical natural frequencies of the independent corridor model and the independent tower model can be obtained. The specific parameter identification process can be implemented with reference to existing technologies, and will not be elaborated here.

[0030] Furthermore, in this embodiment, the design parameters of the target corridor are obtained, the relative height of the target corridor is calculated based on the design parameters, and the first connection method between the target corridor and the target tower is determined, specifically including: Obtain the design parameters of the connecting corridor, including the height of the top floor of the corridor from the ground. Tower structural height The types of connecting corridor supports include welding, bolted connections, lead-core rubber supports, friction pendulum supports, and spherical supports. The height of the top floor of the connecting corridor from the ground Divide by the height of the tower structure To obtain the relative height of the connecting corridor x The specific formula is as follows: ; Based on the form of the connecting corridor support, the first connection method between the connecting corridor and the tower is determined, specifically including: If the support structure of the connecting corridor is welded and bolted, then the primary connection method between the connecting corridor and the tower is a fixed connection. If the support type of the connecting corridor is lead-core rubber support and friction pendulum support, then the first connection method between the connecting corridor and the tower is sliding connection; If the support for the connecting corridor is a spherical support, then the first connection method between the connecting corridor and the tower is a fixed hinge connection.

[0031] Furthermore, in this embodiment, based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower, the tower-corridor vertical stiffness ratio and the critical value of the vertical stiffness ratio are calculated, including: Based on the first-order vertical natural frequencies of the target corridor and the target tower, the quotient of the squares of the first-order vertical natural frequencies of the target corridor and the target tower is calculated to obtain the tower-corridor vertical stiffness ratio. The specific formula is as follows: ; The masses of the connecting corridor and the tower in a connected building are obtained, and the corridor-to-tower mass ratio is calculated. The stiffness ratio of the connecting corridor when its relative vertical natural frequency approaches 1 is defined as the critical value of the vertical stiffness ratio. Therefore, the influence of the tower stiffness on the vertical natural frequency of the connecting corridor has a critical value, which is related to the corridor-tower mass ratio. The equation for the critical value of the vertical stiffness ratio is solved based on the corridor-tower mass ratio, and the solved critical value of the vertical stiffness ratio is expressed as: ; The equation for the critical value of the vertical stiffness ratio is:

[0032] in, The vertical stiffness ratio of the tower to the connecting corridor; For the quality of the connecting corridor; For the quality of the tower.

[0033] Furthermore, referring to Figure 2As shown, after modal analysis, based on the first-order vertical natural frequency of the target corridor, the relative height of the target corridor, the first connection method between the corridor and the tower, the tower-corridor vertical stiffness ratio, and the critical value of the vertical stiffness ratio, a corridor comfort calculation model is determined according to a preset model classification logic; the corridor comfort calculation model is either an independent corridor comfort calculation model or a connected corridor comfort calculation model, including: Determine the first-order vertical natural frequency of the target corridor Is it greater than 3Hz? If the target corridor's vertical natural frequency is... And the relative height of the connecting corridor Then the comfort calculation model of the connecting corridor is the target connecting corridor comfort calculation model; Vertical natural frequency of the target corridor If the relative height of the connecting corridor x > 0.2, then the comfort calculation model of the connecting corridor is determined based on the vertical stiffness ratio of the tower to the connecting corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency Furthermore, if there is a hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is determined based on the vertical stiffness ratio of the tower and the corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency If there is no hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is the independent corridor comfort calculation model.

[0034] Furthermore, in this embodiment, the comfort calculation model for the connecting corridor is determined based on the tower-corridor vertical stiffness ratio and the critical value of the vertical stiffness ratio, including: If the vertical stiffness ratio of the tower to the connecting corridor is less than the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the connecting corridor. If the vertical stiffness ratio of the tower to the connecting corridor is greater than or equal to the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the independent connecting corridor.

[0035] The method in this application obtains the vertical natural frequencies of the connecting corridor and the tower through existing structural models, and determines the comfort calculation model of the connecting corridor by combining the vertical stiffness ratio of the tower to the connecting corridor, the design parameters of the connecting corridor, and the critical value of the vertical stiffness ratio. This improves the accuracy of the vibration comfort prediction of the connecting corridor and ensures that the vibration comfort of the connecting corridor meets the requirements during the service phase.

[0036] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0037] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for determining a vibration comfort calculation model for a long-span connecting corridor, characterized in that, include: Separate the independent models of the target corridor and the target tower from the connected buildings; Modal analysis was performed on the independent corridor model and the independent tower model respectively to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower; Obtain the design parameters of the target corridor, calculate the relative height of the target corridor based on the design parameters, and determine the first connection method between the target corridor and the target tower; Based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower, the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio are calculated. Based on the first-order vertical natural frequency of the target corridor, the relative height of the target corridor, the first connection method between the corridor and the tower, the vertical stiffness ratio of the tower to the corridor and the critical value of the vertical stiffness ratio, the corridor comfort calculation model is determined according to the preset model classification logic; the corridor comfort calculation model is either an independent corridor comfort calculation model or a connected corridor comfort calculation model. The comfort calculation model for the connecting corridor is determined according to a preset model classification logic based on the first-order vertical natural frequency of the target connecting corridor, the relative height of the target connecting corridor, the first connection method between the connecting corridor and the tower, the vertical stiffness ratio of the tower to the connecting corridor, and the critical value of the vertical stiffness ratio. This model includes: Determine the first-order vertical natural frequency of the target corridor Is it greater than 3Hz? If the target corridor's vertical natural frequency is... And the relative height of the connecting corridor Then the comfort calculation model for the connecting corridor is the comfort calculation model for an independent connecting corridor; If the target corridor's vertical natural frequency If the relative height of the connecting corridor x > 0.2, then the comfort calculation model of the connecting corridor is determined based on the vertical stiffness ratio of the tower to the connecting corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency Furthermore, if there is a hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is determined based on the vertical stiffness ratio of the tower and the corridor and the critical value of the vertical stiffness ratio. If the target corridor's vertical natural frequency If there is no hinged connection in the first connection method between the corridor and the tower, then the comfort calculation model of the corridor is the independent corridor comfort calculation model. The calculation of the tower-bridge vertical stiffness ratio and the critical value of the vertical stiffness ratio based on the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower includes: Based on the first-order vertical natural frequency of the target corridor The first-order vertical natural frequency of the detached tower The quotient of the squares of the first-order vertical natural frequencies of the target corridor and the target tower is used to obtain the vertical stiffness ratio of the tower to the corridor. The specific formula is as follows: ； The masses of the connecting corridor and the tower in a connected building are obtained, and the corridor-to-tower mass ratio is calculated. The stiffness ratio of the connecting corridor when its relative vertical natural frequency approaches 1 is defined as the critical value of the vertical stiffness ratio. Therefore, the influence of the tower stiffness on the vertical natural frequency of the connecting corridor has a critical value, which is related to the corridor-tower mass ratio. The equation for the critical value of the vertical stiffness ratio is solved based on the corridor-tower mass ratio, and the solved critical value of the vertical stiffness ratio is expressed as: ; The equation for the critical value of the vertical stiffness ratio is: in, The vertical stiffness ratio of the tower to the connecting corridor; For the quality of the connecting corridor; For the quality of the tower.

2. The method for determining the vibration comfort calculation model of a long-span connecting corridor according to claim 1, characterized in that, The separate models of the target corridor and the target tower, extracted from the connected buildings respectively, specifically include: Extract the corridor structure of the target corridor from the overall structure of the connected building and use it as an independent corridor model; Based on the original actual connection method of the connecting corridor in the connected building, the stiffness of the boundary nodes is constrained to characterize the building structure's ability to resist structural deformation under the actual connection method; the stiffness includes translational stiffness and rotational stiffness. Remove the connecting corridor structure from the overall structure to obtain the same independent tower models at both ends of the target connecting corridor.

3. The method for determining the vibration comfort calculation model of a long-span connecting corridor according to claim 2, characterized in that, The constraint of boundary node stiffness based on the original actual connection method of the connecting corridor in the connected building specifically includes: If the original actual connection method of the connecting corridor in the connected building is a fixed connection, then constrain all stiffness of the boundary nodes; If the original actual connection method of the connecting corridor in the connected building is a sliding connection, then constrain the rotational stiffness of the boundary nodes; if the original actual connection method of the connecting corridor in the connected building is a fixed hinged connection, then constrain the translational stiffness of the boundary nodes.

4. The method for determining the vibration comfort calculation model of a long-span connecting corridor according to claim 1, characterized in that, The modal analysis of the independent corridor model and the independent tower model to determine the first-order vertical natural frequency of the target corridor and the first-order vertical natural frequency of the target tower specifically includes: Modal analysis was performed on the independent connecting corridor model to obtain the first-order vertical natural frequency of the target connecting corridor. ; Modal analysis was used to perform modal analysis on the independent tower model at either end of the target corridor, and the first-order vertical natural frequency of the target tower at the connection point of the corridor was obtained. .

5. The method for determining the vibration comfort calculation model of a long-span connecting corridor according to claim 1, characterized in that, The process of obtaining the design parameters of the target corridor, calculating the relative height of the target corridor based on the design parameters, and determining the first connection method between the target corridor and the target tower specifically includes: Obtain the design parameters of the connecting corridor, including the height of the top floor of the connecting corridor from the ground. Tower structural height The types of connecting corridor supports include welding, bolted connections, lead-core rubber supports, friction pendulum supports, and spherical supports. The height of the top floor of the connecting corridor from the ground Divide by the height of the tower structure To obtain the relative height of the connecting corridor x The specific formula is as follows: ； Based on the form of the connecting corridor support, the first connection method between the connecting corridor and the tower is determined, specifically including: If the support structure of the connecting corridor is welded and bolted, then the primary connection method between the connecting corridor and the tower is a fixed connection. If the support type of the connecting corridor is lead-core rubber support and friction pendulum support, then the first connection method between the connecting corridor and the tower is sliding connection; If the support for the connecting corridor is a spherical support, then the first connection method between the connecting corridor and the tower is a fixed hinge connection.

6. The method for determining the vibration comfort calculation model of a long-span connecting corridor according to claim 1, characterized in that, The model for calculating the comfort level of the connecting corridor based on the vertical stiffness ratio of the tower and the critical value of the vertical stiffness ratio includes: If the vertical stiffness ratio of the tower to the connecting corridor is less than the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the connecting corridor. If the vertical stiffness ratio of the tower to the connecting corridor is greater than or equal to the critical value of the vertical stiffness ratio, then the comfort calculation model of the connecting corridor is the comfort calculation model of the independent connecting corridor.

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