Strength and Drift Characteristics of Steel Frames

Autor:	J. Hartley Daniels, Shosuke Morino, Erkan Ozer, Omer S. Okten, Le-Wu Lu
Rok vydání:	1977
Předmět:	Gravity (chemistry) Engineering business.industry General Engineering Ranging Structural engineering Strength of materials Stability (probability) Instability Wind engineering Stress (mechanics) Geotechnical engineering business Size effect on structural strength
Zdroj:	Journal of the Structural Division. 103:2225-2241
ISSN:	2690-3377 0044-8001
DOI:	10.1061/jsdeag.0004768
Popis:	The strength and drift characteristics of unbraced multistory steel frames subjected to combined loads are studied with emphasis on P-Δ effect. Seven frames having dimensions and loads typical of those found in apartment and office structures were selected. Four designs are made for each frame: three stress-controlled designs and one drift controlled design. The frames are then analyzed for their response under proportioned and nonproportioned loads. Results show that even though the strength of the structures is reduced by P-Δ effect, all stress designs can achieve a wind load factor equal to or greater than 1.40 under proportional loads, 2.06 under nonproportional loads with gravity load maintained at working value. The stress design having columns proportioned to satisfy AISC provisions does not show significant increase in strength when compared with the design neglecting instability effect. The drift designs have large wind load-carrying capacity, ranging from 1.45 to 4.0, depending on the amount of gravity load.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::820e94a20a2f4acd53590096c2aaa6c1 https://doi.org/10.1061/jsdeag.0004768 Zobrazit plný text záznamu