Seismic site period studies for nonlinear soil in the city of Ottawa, Canada

2020 ◽  
Vol 136 ◽  
pp. 106205
Author(s):  
D. Motazedian ◽  
H. Torabi ◽  
J.A. Hunter ◽  
H.L. Crow ◽  
M. Pyne
Keyword(s):  
The City ◽  
2018 ◽  
Vol 7 (4.20) ◽  
pp. 45
Author(s):  
Heba Kamal

New Damietta City is situated in a locale of moderate notable seismicity about M6.25 have happened. These dangerous tremors started from the Mediterranean subduction zone among African and Eurasian plates and is underlain by soaked late Holocene stores. In this examination, the city of New Damietta was assessed regarding site intensification and site period. Geographical and geotechnical examination including information base of 543 boreholes were gathered from past geotechnical reports and corroborative exhausting logs were executed by the Lodging and Building national Exploration focus. These information were incorporated to decide the variety of the dirt profile and in addition the qualities of the dirt layers inside the investigation site. One dimensional ground response close examination using corresponding straight system and nonlinear procedure have been done. Nonlinear examinations' results were differentiated and those of the indistinguishable direct method, and both of the similarities and differences are discussed. It is assumed that because of nonlinearity of soil under strong ground developments, 1-D parallel direct showing overestimates the strengthening structures the extent that add up to upgrade level, and can't viably speak to full frequencies and hysteric soil lead. Along these lines, more reasonable and suitable numerical strategies for ground reaction examination ought to be reviewed  


2016 ◽  
Vol 32 (3) ◽  
pp. 1469-1488 ◽  
Author(s):  
Gonzalo A. Montalva ◽  
Francisco J. Chávez-Garcia ◽  
Andrés Tassara ◽  
Darío M. Jara Weisser

The influence of site effects on seismic demand was studied in Concepción to explain the observed damages suffered by engineered structures during the 2010 Mw 8.8 Maule, Chile, earthquake. Shallow shear-wave velocity ( V S), site period, and gravity measurements were used to assess site effects. The three-dimensional (3-D) basin shape was inverted from gravity values. Predominant period shows a good correlation with bedrock depth, suggesting that V S of soil is relatively uniform throughout the city. This was confirmed by direct V S measurements at 17 sites throughout the city. The irregular distribution of damage suggests that V S30 is not a good proxy for damage distribution in Concepción. In contrast, we observe dependence with basin thickness, site period, and estimated PGV for buildings with high vulnerability. Most low-vulnerability structures showed no damage regardless of site conditions and intensity measures. Our results indicate that site effects contributed to structural damage in vulnerable structures and these effects were primarily controlled by basin depth.


1999 ◽  
Vol 27 (2) ◽  
pp. 202-203
Author(s):  
Robert Chatham

The Court of Appeals of New York held, in Council of the City of New York u. Giuliani, slip op. 02634, 1999 WL 179257 (N.Y. Mar. 30, 1999), that New York City may not privatize a public city hospital without state statutory authorization. The court found invalid a sublease of a municipal hospital operated by a public benefit corporation to a private, for-profit entity. The court reasoned that the controlling statute prescribed the operation of a municipal hospital as a government function that must be fulfilled by the public benefit corporation as long as it exists, and nothing short of legislative action could put an end to the corporation's existence.In 1969, the New York State legislature enacted the Health and Hospitals Corporation Act (HHCA), establishing the New York City Health and Hospitals Corporation (HHC) as an attempt to improve the New York City public health system. Thirty years later, on a renewed perception that the public health system was once again lacking, the city administration approved a sublease of Coney Island Hospital from HHC to PHS New York, Inc. (PHS), a private, for-profit entity.


ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  
pp. 46-48

This year's Annual Convention features some sweet new twists like ice cream and free wi-fi. But it also draws on a rich history as it returns to Chicago, the city where the association's seeds were planted way back in 1930. Read on through our special convention section for a full flavor of can't-miss events, helpful tips, and speakers who remind why you do what you do.


ASHA Leader ◽  
2017 ◽  
Vol 22 (7) ◽  
Author(s):  
Sean Sweeney
Keyword(s):  

2009 ◽  
Author(s):  
Ferdinand Gregorovius ◽  
Annie Hamilton

2009 ◽  
Author(s):  
Ferdinand Gregorovius ◽  
Annie Hamilton

1958 ◽  
Author(s):  
Robert Serpell ◽  
Linda Baker ◽  
Susan Sonnenschein
Keyword(s):  

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.


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