Pedestal designmethod for large-spanned connecting-corridor one-piece structure

A technology of conjoined structure and design method, which can be used in computing, special data processing applications, instruments, etc., and can solve the problems of cumbersome design method of flexible support and lack of versatility.

Inactive Publication Date: 2017-05-31
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a support design method for connecting a large-span corridor to a double-tower conjoined structure, which solves the problems that the existing flexible support design method is cumbersome and not universal, and makes the design of the shock-isolation support convenient and quick

Method used

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  • Pedestal designmethod for large-spanned connecting-corridor one-piece structure
  • Pedestal designmethod for large-spanned connecting-corridor one-piece structure
  • Pedestal designmethod for large-spanned connecting-corridor one-piece structure

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Embodiment Construction

[0047] A corridor connects an asymmetric twin-tower conjoined structure, the left tower has 9 floors, and the stiffness between floors is 2.0×10 6 kN / m, floor mass 1000t. The right tower has 9 floors, and the stiffness of each floor is 1.0×10 6 kN / m, the mass distribution is the same as the left tower. The corridor connects the top floor of the tower with a mass of 1000t.

[0048] Through modal analysis, the basic natural frequencies of the left and right towers are 1.176Hz and 0.831Hz, respectively. The frequency ratio of the two towers is ω 2 / ω 1 =0.71, the corridor mass ratio is μ 0 = 0.111. In the case of symmetrical connection at both ends, connection parameters: (1) Target I: ω 01 / ω 1 =0.71, ξ 01 =0.05; (2) Target II: ω 01 / ω 1 =0.47, ξ 01 =0.06; (3) Target Ⅲ: ω 01 / ω 1 =0.47, ξ 01 = 0.08.

[0049] When the value is selected according to the control objective II, the connection stiffness is The connection damping coefficient is c 0 = 2m 3 ξ 01 ω 0...

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Abstract

The method provides a pedestal designmethod for a large-span connecting-corridor one-piece structure, and belongs to the field of architecture structures for building structures. The method solves problems thatexisting flexible connection pedestal design methods are complex and have no universality. The method includes the steps of (1) determining a tonnage specification of basin-like rubber pedestal; (2) calculatinga wind load in a normal operating condition; (3) determining a control target when earthquake affects the structure; (4) determining stiffness and damping coefficients of a pedestal. The designmethod is convenient and efficient: only by utilizing primary-self-oscillation frequency-ratio and the mass ratio of the connecting corridor to two tower-architecture structures on the bottom, engineers can retrieve optimal stiffness and damping coefficient of pedestal soft connecting pedestal via universal data-sheet, and choose a parameter value of shake-isolated pedestal, eventually make combination shake-isolated pedestal based on the parameter. The designmethod is of great significance inapplication and promotion of control system of the large-span connecting-corridor one-piece structure.

Description

technical field [0001] The invention belongs to a design method of a shock-isolation bearing used in a building structure. Background technique [0002] Due to the needs of architectural modeling and functional design, many adjacent building structures are connected through air corridors, forming a conjoined structure in which a long-span corridor connects the twin towers, and the location of the corridor is getting higher and the span is getting bigger and bigger. . If rigid bearings or hinged bearings are used to connect the corridor and the tower structure, the structure will generate large temperature stress and earthquake action under the action of temperature and strong earthquake, which will make the structural design of the connection node complicated and cause serious damage in the earthquake. There is even a corridor collapse disaster. The flexible connection device is used to connect the corridor and the tower structure, so that a certain relative displacement c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/17
Inventor 孙黄胜高旭牟翠翠
Owner SHANDONG UNIV OF SCI & TECH
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