Seismic Response Analysis of Tower Crane in Consideration of the Building-Crane Interaction

2013 ◽  
Vol 353-356 ◽  
pp. 1981-1985 ◽  
Author(s):  
Bing Ai ◽  
Jia Lin Yang ◽  
Zeng Zhuang Pei
Keyword(s):  
Seismic Response ◽  
Seismic Analysis ◽  
Dynamic Responses ◽  
Response Analysis ◽  
Analysis Method ◽  
Ansys Software ◽  
Seismic Response Analysis ◽  
3D Fem ◽  
Fem Model ◽  
Tower Crane

Interaction between buildings and tower has not been considered in former research..In this paper an integrated seismic analysis method is proposed considering the interaction between the building and the tower crane. A 3D-FEM model of the building and the crane is established with ANSYS software and seismic responses such as the displacement, the acceleration and the stress of the crane are analyzed. The sensitivity of the stiffness of the building on the dynamic responses is also analyzed. The results with consideration of the building-crane interaction, is higher than the results without interaction, and it becomes more significant with the increase of stiffness of the building.

Confirmation of Seismic Integrity of HTTR Against 2011 Great East Japan Earthquake

2016 ◽  
Author(s):  
Masato Ono ◽  
Kazuhiko Iigaki ◽  
Yosuke Shimazaki ◽  
Atsushi Shimizu ◽  
Hiroyuki Inoi ◽  
...  
Keyword(s):  
High Temperature ◽  
Seismic Response ◽  
Seismic Analysis ◽  
Evaluation Criteria ◽  
Reactor Power ◽  
Great East Japan Earthquake ◽  
Great Earthquake ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Energy Agency

Japan Atomic Energy Agency (JAEA) has carried out research and development to establish the technical basis of High Temperature Gas-cooled Reactor (HTGR) by using High Temperature engineering Test Reactor (HTTR). On March 11th, 2011, the Great East Japan Earthquake of magnitude 9.0 occurred. When the great earthquake occurred, the HTTR had been stopped under the periodic inspection and maintenance of equipment and instrument. In the great earthquake, the maximum seismic acceleration observed at the HTTR exceeded the maximum value in seismic design. The visual inspection of HTTR facility was carried out for the seismic integrity conformation of HTTR. The seismic analysis was also carried out using the observed earthquake motion at HTTR site to confirm the integrity of HTTR. The concept of comprehensive integrity evaluation for the HTTR facility is divided into two parts. One is the “inspection of equipment and instrument”. The other is the “seismic response analysis” for the building structure, equipment and instrument using the observed earthquake. For the basic inspections of equipment and instrument were performed for all them related to the operation of reactor. The integrity of the facilities is confirmed by comparing the inspection results or the numerical results with their evaluation criteria. As the result of inspection of equipment and instrument and seismic response analysis, it was judged that there was no problem to operate the reactor, because there was no damage and performance deterioration, which affects the reactor operation. The integrity of HTTR was also supported by the several operations without reactor power in cold conditions of HTTR in 2011, 2013 and 2015.

The Seismic Response Analysis Method of the Jacket under Multiple Support Excitation

2012 ◽  
Vol 256-259 ◽  
pp. 2051-2055
Author(s):  
Jian Mei Sun ◽  
Hao Cui
Keyword(s):  
Seismic Analysis ◽  
Response Analysis ◽  
Analysis Method ◽  
Seismic Response Analysis ◽  
Oil Reserves ◽  
Long Span ◽  
Simplified Method ◽  
Multiple Support ◽  
Support Excitation ◽  
Offshore Oil

With the development of demand of exploiting offshore oil reserves, the Jacket platform structure’ span and depth is more and more large, so the seismic analysis of the jacket structure will become more and more complicated. In the dynamic analysis of long-span structures, multiple support excitation may be accounted is necessary. For big jacket structure, it is more accurate and reasonable by multiple support excitation than by uniform excitation. The objective of the research described herein is to develop a simplified method to investigate the effect of multiple support excitation on the jacket structure.

scholarly journals Seismic Response Analysis of Shaft Tower Based on The Interaction of Soil-Well Bore-Shaft Tower

2021 ◽  
Vol 943 (1) ◽  
pp. 012024
Author(s):  
L T Han ◽  
Y P Su ◽  
J W Chen ◽  
N Ge
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Rigid Foundation ◽  
Well Bore ◽  
Analysis Method ◽  
Analysis Model ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis

Abstract To study the influence of soil-well bore-shaft tower interaction on the seismic response of the shaft tower. A numerical analysis model of rigid foundation (without considering the interaction of soil-well bore-shaft tower ) and II site considering soil-well bore-shaft tower interaction is established by the finite element analysis method. The mode period, tower layer displacement and inter-story displacement of shaft tower are analyzed. The results show that, compared with rigid foundation, considering the interaction of soil-well bore-shaft tower, the mode period of the system is prolonged, the tower layer displacement and inter-story displacement of the shaft tower is enlarged. In the engineering design of shaft tower, the influence of the soil-well bore-shaft tower interaction on the seismic response of the shaft tower cannot be ignored.

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