scholarly journals Seismic design of cylindrical tank. 5th Report. Seismic response analysis of tank on elastic foundation.

1987 ◽  
Vol 53 (495) ◽  
pp. 2277-2282
Author(s):  
Nobuyuki SHIMIZU
Keyword(s):  
Seismic Response ◽  
Elastic Foundation ◽  
Seismic Design ◽  
Response Analysis ◽  
Cylindrical Tank ◽  
Seismic Response Analysis

Seismic Response Analysis System by Means of Multibody Dynamics Approach: Modeling and Analysis of Geometric Time Varying Structure Systems

2005 ◽  
Author(s):  
Yoshitaka Takahashi ◽  
Nobuyuki Shimizu
Keyword(s):  
Seismic Response ◽  
Multibody Dynamics ◽  
Seismic Design ◽  
Building Construction ◽  
Response Analysis ◽  
Time Varying ◽  
Seismic Response Analysis ◽  
Modeling And Analysis ◽  
Beam Elements ◽  
Analysis System

In Japan, the seismic design methods for structures are developed in the civil and architectural fields. And these seismic design technologies have also been brought to mechanical structures such as piping facilities and boiler structures, etc.. But, for the geometric time varying structure of which geometric configuration is dependent on time such as cranes, the kinetic and the dynamic characteristics of such structures are not fully considered in the seismic response analyses. In this paper, we try the modeling of the geometric time varying structure systems by means of the method of multibody dynamics. And we examine the effect of the geometric time varying system on the seismic response. The beam elements formulated by the absolute nodal coordinate are used to model the structure that has large displacement motion of the base of the structure. The crane structure for the building construction is modeled in the numerical example. The seismic responses of the moving boom part of the crane model are simulated. New phenomenon has been explored.

scholarly journals Dynamic Characteristics and Seismic Response Analysis of Self-Anchored Suspension Bridge

2012 ◽  
Vol 5 ◽  
pp. 183-188
Author(s):  
Lian Zhen Zhang ◽  
Tian Liang Chen
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Dynamic Characteristics ◽  
Response Spectrum ◽  
Time History ◽  
Suspension Bridge ◽  
Bridge Engineering ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Seismic Design Code

Self-anchored suspension bridge is widely used in Chinese City bridge engineering for the past few years. Because the anchorage system of main cable has been changed from anchorage blocks to the ends of the girder, its’ dynamic mechanics behavior is greatly distinguished with the traditional earth anchored suspension bridge. This paper studies the dynamic characteristics and seismic response of one large-span self-anchored suspension bridge which is located in China/Shenyang city. Using a spatial dynamic analysis finite element mode, the dynamic characteristics are calculated out. An artificial seismic wave is adopted as the ground motion input which is fitted with acceleration response spectrum according to the Chinese bridge anti-seismic design code. Time-integration method is used to get the seismic time-history response. Geometry nonlinear effect is considered during the time-history analysis. At last, the dynamic characteristics and the behavior of earthquake response of this type bridge structure are discussed clearly. The research results can be used as the reference of seismic response analysis and anti-seismic design for the same type of bridge.

The Application of Pushover Method in Complex Bridge Seismic Design

2014 ◽  
Vol 587-589 ◽  
pp. 1454-1461
Author(s):  
Xiu Yun Gao
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Finite Energy ◽  
Natural Mode ◽  
Response Analysis ◽  
Complex Structures ◽  
Seismic Response Analysis ◽  
Energy Principle ◽  
Finite Displacement ◽  
Practical Engineering

Elasto-plastic seismic response analysis of complex bridge requires large computation, thus in practical engineering design this method can be simplified according to finite energy principle, finite displacement principle and Pushover method or other approximation algorithms. Finite energy principle and finite displacement principle are applied to piers with simple damage mode, and the two principles differ in structure’s natural mode of vibration. Pushover applied to complex structures which can’t be analyzed as single pier. Pushover gives maximum seismic response by static nonlinear analysis, and current Japanese specification adopts Pushover for complex bridge seismic design such as continuous rigid bridges.

The Effect of Site Condition on Ground Motion in Gansu Province during the Wenchun Ms8.0 Earthquake

2012 ◽  
Vol 594-597 ◽  
pp. 1658-1667
Author(s):  
Zhi Jian Wu ◽  
Lan Min Wang ◽  
Ping Wang ◽  
Hang Shi ◽  
Tuo Chen
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Seismic Design ◽  
Site Effects ◽  
Strong Motion ◽  
Gansu Province ◽  
Response Analysis ◽  
Site Condition ◽  
Seismic Response Analysis ◽  
Ground Acceleration

Based on mobile strong motion array observation, borehole exploration and site seismic response analysis, the site effects of mountainous topography in southeastern Gansu and the topography of loess tableland on ground motion were investigated in details. The analysis on acceleration records of aftershocks showed that the peak ground acceleration at top of the mountain is nearly 2 times of that at the foot of it. The seismic response analysis of sites shows that the loess tableland may amplify PGA by 1.44-2.0 times. Therefore, site effects of mountains and loess topography on ground motion should been taken account into seismic design.

Seismic Response Analysis of Large Liquid Storage Tanks

2012 ◽  
Vol 166-169 ◽  
pp. 2490-2493
Author(s):  
Yuan Zhang ◽  
You Hai Guan
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Storage Tank ◽  
Response Analysis ◽  
Storage Tanks ◽  
Performance Study ◽  
Seismic Response Analysis ◽  
Seismic Safety ◽  
Liquid Storage ◽  
Liquid Storage Tank

Due to frequent earthquakes in recent years, the seismic safety of large storage tank is very important. In this paper, seismic response of large liquid storage tanks is analyzed. A model for liquid storage tank is established firstly. By modality analysis, dynamic behavior of large storage tank is obtained. After the model is excitated by seismic, seismic responses are obtained. The conclusions show that, without considering liquid-solid coupling, "elephant foot" buckling phenomenon doesn’t appear. This study provides reference for seismic design and seismic performance study of large storage tank.

Seismic Design Margin of the Piping and Support System: Part 2—Proposal for Non-Linear Modeling of the Support

2010 ◽  
Author(s):  
Eiji Shirai ◽  
Takanori Yamada ◽  
Kazutoyo Ikeda ◽  
Toshiaki Yoshii ◽  
Masami Kondo ◽  
...  
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Support System ◽  
Response Analysis ◽  
Plastic Behavior ◽  
Linear Modeling ◽  
Seismic Response Analysis ◽  
Linear Type ◽  
Non Linear ◽  
Design Margin

On the evaluation of seismic design margin of the piping and support system in the nuclear power plant, the elasto-plastic behavior of support has played the important role in the seismic response analysis. It is desirable to establish the simple and effective non-linear modeling of the support in order to conduct the seismic response analysis considering each elasto-plastic characteristics of actual numerous supports in the piping system. In this study, the simplified modeling methodology related to the elasto-plastic behavior of the support was investigated by classifying the several non-linear types by estimating the limit load capacity of support, in which the results of non-linear type classification and accompanied failure mode were compared to the static loading tests of the support. At the results, methodology to identify the non-linear type of the support with normal bi-linear model was proposed, and it was confirmed that the non-linearity of the support was classified into the five different types.

SEISMIC RESPONSE ANALYSIS OF THE BUILDING FOUNDATION BASED ON THE DEFORMATION PERFORMANCE TESTS OF PHC-PILE

1999 ◽  
Vol 5 (9) ◽  
pp. 71-76
Author(s):  
Takao MATSUMURA ◽  
Shinichiro ASANO ◽  
Jun YAMADA ◽  
Masao KOBA ◽  
Koji ITO ◽  
...  
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Performance Tests ◽  
Seismic Response Analysis ◽  
Building Foundation
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