Seismic Analysis of Underground Structural Elements

Autor:	Hemant H. Shah, Shih Lung Chu
Rok vydání:	1974
Předmět:	Piping business.industry General Engineering Modulus Structural engineering Slip (materials science) Induced seismicity Seismic wave Seismic analysis Pipeline transport Geotechnical engineering Slippage business Geology
Zdroj:	Journal of the Power Division. 100:53-62
ISSN:	2690-3318 0569-8030
DOI:	10.1061/jpweam.0000783
Popis:	Considering soil as an elastic medium, Newmark has presented maximum strains in soil caused by a seismic stress wave. Straight underground structural elements can be designed conservatively using these strains and neglecting the slippage between the element and surrounding soil. It has been shown in this paper that underground elements with bends and branches are subjected to significant bending stresses due to the slippage. A simplified analytical procedure has been presented to account for this effect in the design of underground elements, e.g., piping, electrical cable ducts, and tunnels. The effect of modulus of subgrade reaction and the seismic wave velocity on these stresses is analyzed.
Databáze:	OpenAIRE
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