FLOOR STRUCTURE, DESIGN METHOD OF FLOOR STRUCTURE, AND CONSTRUCTION METHOD OF FLOOR STRUCTURE

Japanese Patent JP2022111579

A

To provide a floor structure having high ratio of a cross section performance to a weight of a beam to secure habitability.SOLUTION: A floor structure 2 comprises: a plurality of column members 10; a plurality of girders 15 stretched on the plurality of column members; a beam 25 surrounded by the plurality of girders and stretched on the plurality of girders; and a floor slab 35 provided above the plurality of girders and the beam. The beam is a weld assembly H-shaped steel. The floor structure satisfies the formula (1) when defining a vibration frequency in a primary vibration mode of the plurality of girders, the beam, and the floor slab as ffloor,1st, defining a vibration frequency in a primary vibration mode of a mode where a lower flange 28 vibrates around an upper end of a web 26 in the beam as fbeam,1st, and defining a rolled H-shaped steel according to JIS G 3192 which corresponds to the beam and has the highest ratio of a response value to an allowance value of 1 or less when receiving a prescribed external force, is a reference beam. The beam has higher ratio of a cross section secondary moment to a weight, compared with the reference beam. ffloor,1st≤fbeam,1st ..(1)SELECTED DRAWING: Figure 1

WO/1996/006985

FOUNDATION AND FLOOR CONSTRUCTION MEANS

NAKAYASU MASAAKI
KITAOKA SATOSHI
SATO KEIICHI
KOBASHI TOMOKI
GOTO TENSHIRO
MIYABAYASHI KOKI
KIMURA KEI
ARITA MASAKI
HIROSHIMA SATORU
KUWATA RYOHEI

JP2021007105A

August 01, 2022

January 20, 2021

Click for automatic bibliography generation  

NIPPON STEEL CORP

E04B5/10; E04B1/24

Sumio Tanai
Mitsuo Teramoto
Tomomasa Katsumata
Hiroshi Yamaguchi

Previous Patent: Charged particle beam deflector and particle beam therapy system

Next Patent: power system