Dome structure

The dome structure with a tension control unit stabilizes against vertical earthquakes by regulating tensile forces on the tension ring body, preventing beam yielding and buckling.

JP7727438B2Active Publication Date: 2025-08-21TAKENAKA CORP
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Patent Information

Application Number
JP2021129231
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-08-05
Publication Date
2025-08-21
Estimated Expiration
2041-08-05

AI Technical Summary

Technical Problem

Conventional dome structures lose stability during vertical earthquakes due to fluctuating axial forces and bending moments causing beams to yield and buckle, leading to plastic deformation and global buckling.

Method used

A dome structure with a tension ring body, compression ring body, and beam members, equipped with a tension control unit that regulates tensile forces on the tension ring body, suppressing axial and bending moments on the beams during earthquakes.

Benefits of technology

The structure maintains stability by preventing beam yielding and buckling during vertical earthquakes, ensuring the integrity of the dome.

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Patent Text Reader

Abstract

To provide a dome structure capable of ensuring stability in an unexpected vertical motion earthquake.SOLUTION: A dome 10 includes a tension ring body 16 supported by a structure 14, a compression ring body 18 provided above and inside the tension ring body 16, a plurality of beam members 20 extending obliquely upward and inward from the tension ring body 16 and connected to the compression ring body 18, and a tension control section 24 for controlling the tensile force acting on the tension ring body 16.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Long span domes and construction thereof

    EP4253680A1

  • Ring beam structure using unbond filled steel pipe

    JP1987202143A

  • Frame structure of curved roof

    JP1995026630A

  • Roof structure and construction method

    JP1995042238A

  • Method for constructing large roof

    JP1999022011A