Base-Isolated Multi-Storey Reinforced Concrete Frame Structure Modal Analysis

The multi-storey reinforced concrete frame structure used lead rubber pad as the base isolation device. The paper had modal analysis of base-isolated multi-storey reinforced concrete frame structure using the ANSYS software. Comparing the frequency and vibration mode before and after isolation under El-Centro wave, It concluded the leader rubber pad have seismic isolation effect for multi-storey reinforced concrete frame structure .

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The Modal Analysis of a Multilayer Concave-Convex Irregular Reinforced Concrete Frame Structures before and after Seismic Isolation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.339.632 ◽

2013 ◽

Vol 339 ◽

pp. 632-634

Author(s):

Fang Zhang

Keyword(s):

Reinforced Concrete ◽

Seismic Isolation ◽

Base Isolation ◽

Frame Structure ◽

Frame Structures ◽

Reinforced Concrete Frame ◽

Cycle Frequency ◽

Concrete Frame ◽

Before And After ◽

Reinforced Concrete Frame Structures

It used lead core type laminated rubber pad as a base isolation device. Using the ANSYS software, it analyzed the modality of a multilayer concave-convex irregular reinforced concrete frame structures before and after seismic isolation. Comparison of the cycle, frequency and modal participation mass coefficient of the multilayer concave-convex irregular reinforced concrete frame structure before and after isolation in Kobe wave. It concluded that the lead laminated rubber bearings for multilayer concave-convex irregular reinforced concrete frame structures have seismic isolation effect.

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The Seismic Performance Analysis of the Adding Storey Frame Structure with Isolation Device

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1008-1009.1246 ◽

2014 ◽

Vol 1008-1009 ◽

pp. 1246-1249

Author(s):

Lin Hai Zhang ◽

Fu Ma

Keyword(s):

Reinforced Concrete ◽

Layer Structure ◽

Frame Structure ◽

Acceleration Response ◽

Reinforced Concrete Frame ◽

Concrete Frame ◽

Finite Element Software ◽

Reinforced Concrete Frame Structure ◽

Interlaminar Shear ◽

Isolation Device

In this paper, with a high-intensity reinforced concrete frame structure as the prototype, the calculation of isolated structures is through mature finite element software or MIDAS / Gen to calculate and analyze the five structure models of the 8 degrees Area established as the original five-layer structure model. The results show that the use of steel or reinforced concrete in floor will increase the structural seismic response with the interlaminar shear and interlaminar displacement increase. And storey isolation structure’s acceleration response is significantly less than that of the non-isolated structure.

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Storey-Adding and Strengthening Design for A Reinforced Concrete Frame Structure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.477-478.671 ◽

2013 ◽

Vol 477-478 ◽

pp. 671-674

Author(s):

Fei Wang

Keyword(s):

Reinforced Concrete ◽

Frame Structure ◽

Frame Structures ◽

Reinforced Concrete Frame ◽

Concrete Frame ◽

Reinforced Concrete Frame Structure ◽

Before And After ◽

Reinforced Concrete Frame Structures

This paper take a reinforced concrete frame structures storey-adding transformation as an example, analysising and calculating the whole structure adding layer before and after, then discussing the reinforcing measures of the column during the design of this processing. The using condition shows that reinforcing measures is very safe and effective that the project has adopted, and it can serve as a reference for the design of similar projects.

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