Geometrically Nonlinear Dynamic Analysis of Concrete Arch Dams
Author(s):
Abstract:
In this research, suitable models for large deformation analysis of concrete arch dams and other similar concrete structures are investigated and by considering arch dam special features and properties, proper model for its large displacement analysis is presented. Major abilities of the prepared computer code in geometric nonlinear analysis of structures is introduced and after its basic verifications a nonlinear analysis of the Morrow Point dam using the Saint-Venant –Kirchhoff model for large displacements is carried out under the case of an intensive ground motion. Foundation is considered as rigid and fluid-structure interaction is approximated by the modified Westergaard added mass concept. It is indicated that considering large deformation effects reduce the displacement response of dam. This reduction is about 8 % in respect to linear dynamic analysis in peak responses. On the other hand, large deformation effects reduce compression stresses and increases tensile ones. Values of these changes are about 9 % for compression and 6% for tension. It seems that for large seismic loads a consistent inclusion of this type of nonlinearity is necessary in order to grasp a proper image of concrete arch dam dynamic real response.
Language:
Persian
Published:
International Journal of Industrial Engineering & Production Management, Volume:19 Issue: 2, 2008
Page:
59
magiran.com/p609855
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!