國立虎尾科技大學 |

Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay./
作者:	Meymand, Philip James.
面頁冊數:	1 online resource (462 pages)
附註:	Source: Dissertations Abstracts International, Volume: 60-12, Section: B.
Contained By:	Dissertations Abstracts International60-12B.
標題:	Civil engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9780599225411

Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay.
Meymand, Philip James.

Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay. - 1 online resource (462 pages)

Source: Dissertations Abstracts International, Volume: 60-12, Section: B.

Thesis (Ph.D.)--University of California, Berkeley, 1998.

Includes bibliographical references

A significant number of cases of damage to piles and pile-supported structures during earthquakes have been observed, but few instrumented records of the response and performance of such structures during earthquakes have been obtained. To expand the database of pile performance during strong shaking, a series of scale model shaking table tests of model piles in soft clay was performed. This research effort had the goals of providing insight into a variety of soil-pile-supestructure interaction (SSPSI) topics, and generating a data set with which to calibrate advanced SSPSI analysis tools being developed at U.C. Berkeley in a parallel effort. The single piles were seen to respond with components of inertial and kinematic interaction, with the inertial components producing upper bound bending moments. The response of pile groups was highly frequency dependent, which calls into question the applicability of applying pseudo-static analyses to such problems. Pile cap and free field motion variations illustrated wave scattering effects and the necessity of developing modified foundation input motions for substructuring analyses. Moderate effects of pile cap embedment were observed, particularly in contributing to pile group rocking stiffness. The influences of two-directional shaking were seen to be minimal, as structural inertial forces tended to resolve the motion to a strong axis for the simple single degree of freedom models tested. For single piles, full perimeter soil resistance was not engaged, as the piles preferentially followed gaps developed in previous cycles. Estimates of pile head lateral stiffness derived from a suite of pile head loading tests differed over a wide range, and were a function of loading level and consequent soil-pile nonlinearity. The methods examined for computing dynamic stiffness from elastic theory provided unrealistically high estimates of stiffness for the model tests. Appropriately selected secant stiffness values from the static lateral load tests provided more realistic descriptions of the observed soil-pile dynamic response for moderate levels of shaking. ATC-32 chart solutions provided marginally acceptable lower bound pile head stiffness estimates for very strong shaking events. (Abstract shortened by UMI.).

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9780599225411Subjects--Topical Terms:

561339
Civil engineering.
Subjects--Index Terms:

ClayIndex Terms--Genre/Form:

554714
Electronic books.

Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay.
LDR:03671ntm a22003857 4500 001 1144368
005 20240531083836.5
006 m o d
007 cr mn ---uuuuu
008 250605s1998 xx obm 000 0 eng d
020 $a 9780599225411
035 $a (MiAaPQ)AAI9922971
035 $a AAI9922971
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Meymand, Philip James. $3 1469363
245 1 0 $a Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay.
264 0 $c 1998
300 $a 1 online resource (462 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 60-12, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Riemer, Michael F.
502 $a Thesis (Ph.D.)--University of California, Berkeley, 1998.
504 $a Includes bibliographical references
520 $a A significant number of cases of damage to piles and pile-supported structures during earthquakes have been observed, but few instrumented records of the response and performance of such structures during earthquakes have been obtained. To expand the database of pile performance during strong shaking, a series of scale model shaking table tests of model piles in soft clay was performed. This research effort had the goals of providing insight into a variety of soil-pile-supestructure interaction (SSPSI) topics, and generating a data set with which to calibrate advanced SSPSI analysis tools being developed at U.C. Berkeley in a parallel effort. The single piles were seen to respond with components of inertial and kinematic interaction, with the inertial components producing upper bound bending moments. The response of pile groups was highly frequency dependent, which calls into question the applicability of applying pseudo-static analyses to such problems. Pile cap and free field motion variations illustrated wave scattering effects and the necessity of developing modified foundation input motions for substructuring analyses. Moderate effects of pile cap embedment were observed, particularly in contributing to pile group rocking stiffness. The influences of two-directional shaking were seen to be minimal, as structural inertial forces tended to resolve the motion to a strong axis for the simple single degree of freedom models tested. For single piles, full perimeter soil resistance was not engaged, as the piles preferentially followed gaps developed in previous cycles. Estimates of pile head lateral stiffness derived from a suite of pile head loading tests differed over a wide range, and were a function of loading level and consequent soil-pile nonlinearity. The methods examined for computing dynamic stiffness from elastic theory provided unrealistically high estimates of stiffness for the model tests. Appropriately selected secant stiffness values from the static lateral load tests provided more realistic descriptions of the observed soil-pile dynamic response for moderate levels of shaking. ATC-32 chart solutions provided marginally acceptable lower bound pile head stiffness estimates for very strong shaking events. (Abstract shortened by UMI.).
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Civil engineering. $3 561339
650 4 $a Mechanics. $3 527684
650 4 $a Environmental engineering. $3 557376
653 $a Clay
653 $a Shaking table
653 $a Soil-pile-superstructure
655 7 $a Electronic books. $2 local $3 554714
690 $a 0543
690 $a 0346
690 $a 0775
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of California, Berkeley. $3 1183587
773 0 $t Dissertations Abstracts International $g 60-12B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9922971 $z click for full text (PQDT)