Earthquake-Resistant Statically Determinate Stairs in Buildings
Publication: Practice Periodical on Structural Design and Construction
Volume 21, Issue 4
Abstract
Two laws of structural mechanics are presented in this paper. (1) If an entire structure consists of a main part and a statically determinate subsidiary part, then the load applied on the subsidiary part always produces internal forces in the main part, but the load applied on the main part generates no internal force in the subsidiary part. (2) If an entire structure consists of a main part and a subsidiary part with statically determinate horizontal forces, then the load applied on the main part produces no horizontal internal force in the subsidiary part. These laws can be applied to the seismic design of buildings. If the stairs are the statically determinate subsidiary part of an entire building structure, then internal forces in the stair structure are always small, because no large loads are applied on the stairs. In this case the stairs do not fail. If the stair structure corresponds to the subsidiary part, in which horizontal forces are statically determinate, then horizontal internal forces in the stair structure are always small. Hence, adopting statically determinate stairs or stairs with statically determinate horizontal forces is a critical measure for preventing stair failure.
Get full access to this article
View all available purchase options and get full access to this article.
References
ACI (American Concrete Institute). (2011). “Building code requirements for structural concrete.” ACI318-11, Farmington Hills, MI.
ASCE. (2010). “Minimum design loads for buildings and other structures.” ASCE/SEI 7-10, Reston VA.
Bao, S. H., and Gong, Y. Q. (2000). Structural mechanics, Wuhan University of Technology Press, Wuhan, China.
CEN. (European Committee for Standardization). (2004). “Eurocode 8: design of structures for earthquake resistance–Part 1: General rules, seismic actions and rules for buildings.” EN1998-1:2004, Brussels, Belgium.
Ge, X. L., et al. (2008). “Damage analysis and reconstruction suggestions on buildings in Dujiangyan of Wenchuan MS 8.0 earthquake.” Earthquake Resistant Eng. Retrofit., 30(4), 2–11 (in Chinese).
MHUDPRC (Ministry of Housing and Urban-Rural Development of the People’s Republic of China). (2008). “Code for seismic design of buildings .” GB50011-2001, Beijing (in Chinese).
MHUDPRC (Ministry of Housing and Urban-Rural Development of the People’s Republic of China). (2010). “Code for seismic design of buildings .” GB50011-2010, Beijing (in Chinese).
Ray, H., and Jack, C. (2000). Structural mechanics, 2nd Ed., Palgrave Macmillan, Hampshire, U.K.
Yin, B. J., et al. (2008). “Seismic damage investigation and thinking on the damage buildings of frame-shear wall structure in Wenchuan 5.12earthquake.” Earthquake Resistant Eng. Retrofit., 30(4), 37–40 (in Chinese).
Information & Authors
Information
Published In
Practice Periodical on Structural Design and Construction
Volume 21 • Issue 4 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Dec 15, 2015
Accepted: Feb 9, 2016
Published online: Feb 29, 2016
Discussion open until: Jul 29, 2016
Published in print: Nov 1, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.