scholarly journals Seismic elastic-plastic time history analysis and reliability study of quayside container crane

2010 ◽  
Vol 23 (3) ◽  
pp. 265-274 ◽  
Author(s):  
Yulong Jin ◽  
Zengguang Li
Keyword(s):  
Time History ◽  
Time History Analysis ◽  
Reliability Study ◽  
Elastic Plastic ◽  
Container Crane ◽  
History Analysis ◽  
Quayside Container Crane

scholarly journals Anti-Seismic Device Design for Container Crane and its Elastic-Plastic Time History Analysis

2015 ◽  
Vol 22 (s1) ◽  
pp. 30-34 ◽  
Author(s):  
Dashan Dong ◽  
Jin Li ◽  
Yuanyuan Teng
Keyword(s):  
Time History ◽  
Steel Structure ◽  
Seismic Intensity ◽  
Time History Analysis ◽  
Elastic Plastic ◽  
Container Crane ◽  
History Analysis ◽  
Safety And Reliability ◽  
Major Equipment ◽  
Efficiency And Reliability

Abstract Quayside container crane is a kind of large dimension steel structure, which is the major equipment used for lifting container at modern ports. With the aim to ensure the safety and reliability of the crane under seismic loads, an anti-seismic device is designed. To validate the efficiency and reliability of the anti-seismic device, elastic-plastic time history analysis under rare seismic intensity is carried out. And the results of elastic-plastic time history analysis when the crane installed anti-seismic device and uninstalled the device are compared.

Elastic-Plastic Time History Analysis of MR Damping Structure Based on LQG Algorithm

2016 ◽  
Vol 858 ◽  
pp. 145-150
Author(s):  
Yu Liang Zhao ◽  
Zhao Dong Xu
Keyword(s):  
Optimal Control ◽  
Time History ◽  
Mr Damper ◽  
Time History Analysis ◽  
Control Force ◽  
Control Effect ◽  
Damping Force ◽  
Optimal Control Strategy ◽  
Elastic Plastic ◽  
History Analysis

This paper discussed an elastic-plastic time-history analysis on a structure with MR dampers based on member model, in which the elastoplastic member of the structure is assumed to be single component model and simulated by threefold line stiffness retrograde model. In order to obtain better control effect, Linear Quadratic Gaussian (LQG) control algorithm is used to calculate the optimal control force, and Hrovat boundary optimal control strategy is used to describe the adjustable damping force range of MR damper. The effectiveness of the MR damper based on LQG algorithm to control the response of the structure was investigated. The results from numerical simulations demonstrate that LQG algorithm can effectively improve the response of the structure against seismic excitations only with acceleration feedback.

Elastic-Plastic Time History Analysis of Self-Anchored Cable-Stayed Suspension Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 4295-4300
Author(s):  
Feng Miao ◽  
Lei Shi ◽  
Zhe Zhang
Keyword(s):  
Plastic Hinge ◽  
Time History ◽  
Seismic Energy ◽  
Suspension Bridge ◽  
Time History Analysis ◽  
Main Beam ◽  
Elastic Plastic ◽  
Finite Element Software ◽  
Axial Forces ◽  
History Analysis

Base on the elastic-plastic analytical theory, an elastic-plastic time-history analysis of self-anchored cable-stayed suspension bridge, which engineering background is Dalian Gulf Cross-sea Bridge program, is performed by using general finite element software Midas/Civil. The material nonlinearity of structure is considered with reinforcement concrete fiber model, and distributed hinge type is adopted to simulate for plastic hinge. Compared with the results of an elastic time-history analysis, it is shown that for the structure into the elastic-plastic stage, because of the production of plastic hinge, the input seismic energy is dissipated partially, and the internal forces of structural elements are reduced. The bending moments and axial forces occur mainly in the main tower root. Furthermore, the rotation properties of the plastic hinge causes displacement increasing of certain parts of the structure, which assumes mainly the vertical displacement present on the top of main tower and the main beam. In conclusion, it is proposed that caging devices are set in the design.

Anti-Seismic Reliability Analysis of Quayside Container Crane

2010 ◽  
Vol 118-120 ◽  
pp. 487-491
Author(s):  
Yu Long Jin ◽  
Tian Xing Wu ◽  
Zeng Guang Li
Keyword(s):  
Reliability Analysis ◽  
Response Spectrum ◽  
Time History ◽  
Earthquake Excitation ◽  
Seismic Reliability ◽  
Container Crane ◽  
Analysis Theory ◽  
History Analysis ◽  
Load Carrying ◽  
Quayside Container Crane

Towards the safety reliability problems of the quayside container crane under earthquake excitations, the anti-seismic reliability analysis has been carried out. Because of hugeness and complexity of the structure, it is absolutely impossible to carry on seismic testing with prototype. Thus, a FEM mechanical model of quayside container crane is presented by using the ANSYS codes. Based on the modal response spectrum method and the time-history analysis theory, the load-carrying performance is investigated under earthquake excitations. The results show that neither the displacement response nor the stress response is large under the earthquake excitation in every direction, which could satisfy seismic design requirements.

Research on Elastic-Plastic Seismic Response of Inclined Mega-Structures

2011 ◽  
Vol 255-260 ◽  
pp. 2532-2540
Author(s):  
Nan Zhao ◽  
Lei Xin Jiang
Keyword(s):  
Bearing Capacity ◽  
Seismic Response ◽  
Design Method ◽  
Time History ◽  
Time History Analysis ◽  
Elastic Plastic ◽  
Limit Value ◽  
History Analysis ◽  
Performance Based Seismic Design ◽  
Seismic Design Method

With a special structure system and architectural shape, Kelamayi Exhibition Building has a quite complicated seismic response and dynamic behavior. Based on performance-based seismic design method, vibration characteristics and seismic response under different earthquakes are researched in this paper. Elastic-plastic model is made, and elastic-plastic time history analysis of structure subjected to strong earthquake is carried out, to verify the bearing capacity of the structure according to aseismic behavior indexes. The results of static analysis and elastic-plastic time history analysis show that, the maximum storey drift angle is less than the limit value 1/100. Parts of the structure is in plastic, but not deep, and can be put into use after some repairment. In a word, Kelamayi Exhibition Building can meet the requirement of seismic fortification and fixed aseismic behavior indexed, and have enough seismic bearing capacity.

Sign in / Sign up

Export Citation Format

Share Document