Seismic Damage Analyses of Staircases in RC Frame Structures

Huan Jun Jiang; Hai Yan Gao; Bin Wang

doi:10.4028/www.scientific.net/AMR.446-449.2326

Paper Titles

Application and Implementation of Ecological Design for Single Building
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Dynamic Stress Concentration of Underground Lined Cavities in Different Distance under Incident Plane SV Wave
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Seismic Reliability Analysis of Complex Structure
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Seismic Damage Analyses of Staircases in RC Frame Structures
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The Seismic Performance Study of Steel Pipe Concrete Column in the Absence of Beam Floor System
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Study on Blasting Seismic Effect of Tunnel in Fault Formation
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Study on Mechanical Behavior of the Key Components of High-Level Transfer Frame-Shear Wall Structure with Steel-Lead Viscoelastic Dampers
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Experimental Study on the Seismic Performance of Macro-Synthetic Fiber- Reinforced Concrete Ductile Columns
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449Seismic Damage Analyses of Staircases in RC Frame...

Seismic Damage Analyses of Staircases in RC Frame Structures

Abstract:

Staircases in Reinforced Concrete (RC) frame structures suffered severe damages in recent earthquakes although they are regarded as critically important passages during emergencies. Staircases act as the first line of defense in earthquakes, and therefore they first yield and fail. Then they lose the action of safe passages so that the anticipated seismic performance objectives cannot be satisfied. To make sure that staircases work as safe passages in strong earthquakes, the current Chinese code for seismic design of buildings claims special requirements on the design of staircases. At first, the influence of staircases on the structural behavior of a typical RC frame structure is studied by the comparison of internal force in the structural members considering and neglecting the effect of staircases under frequent earthquakes. Besides, the effect of staircases on the yielding and failing mechanism of the frame structure is investigated through static elasto-plastic analyses. From this study the reason of the damages suffered by cast-in-site staircases in RC frame structures under earthquakes can be understood.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

2326-2330

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.2326

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Online since:

January 2012

Authors:

Huan Jun Jiang, Hai Yan Gao, Bin Wang

Keywords:

Cast-in-Site Staircase, RC Frame Structure, Seismic Performance, Wenchuan Earthquake, Yielding and Failing Mechanism

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References

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