EVACUATION STAIR TOWER

PROBLEM TO BE SOLVED: To provide an evacuation stair tower that suppresses bending of a beam even when exposed to a horizontal load caused by tsunami, etc.SOLUTION: An evacuation stair tower 3 includes a stair 31 serving as a passageway to residential units on a plurality of stories, and a column 31...

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Bibliographic Details
Main Author NOMURA TOMOFUMI
Format Patent
LanguageEnglish
Japanese
Published 28.09.2017
Subjects
BUILDING
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FENCING
FIRE-FIGHTING
FIXED CONSTRUCTIONS
HUMAN NECESSITIES
LIFE-SAVING
MASTS
SWIMMING OR SPLASH BATHS OR POOLS
TENTS OR CANOPIES, IN GENERAL
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Summary:PROBLEM TO BE SOLVED: To provide an evacuation stair tower that suppresses bending of a beam even when exposed to a horizontal load caused by tsunami, etc.SOLUTION: An evacuation stair tower 3 includes a stair 31 serving as a passageway to residential units on a plurality of stories, and a column 311 and a beam 30 constituting a main structural frame. A level difference beam 30A is provided between a floor section 34 and a stair landing floor section 35 of each story. The level difference beam 30A has an inclined part 30a at a location corresponding to a stair space between the floor section 34 and the stair landing floor section 35. The inclined part 30a connects horizontal parts of a floor height corresponding respectively to the floor section 34 and the stair landing floor section 35.SELECTED DRAWING: Figure 2 【課題】津波等に起因して水平方向の荷重を受けた場合でも、梁の曲がりを生じ難くすることができる避難階段塔を提供することを課題とする。【解決手段】多層階に設けられた住戸への通路となる階段３１および主架構となる柱３１１と梁３０を備える避難階段塔３において、各階の床部３４から踊り場床部３５に掛けて段差梁３０Ａが設けられており、この段差梁３０Ａは、上記床部３４と上記踊り場床部３５との間の階段空間に対応した箇所に傾斜部３０ａを有し、上記床部３４および上記踊り場床部３５の各々に対応した床高さの水平部が上記傾斜部３０ｂで連結されている。【選択図】図２
Bibliography:Application Number: JP20160056783