Investigation on smart repairment of seismic-damaged precast concrete frames

Author

Weichen, Xue ; Bin, Zhang ; Zhenyong, Liu

Author_Institution

Dept. of Building Eng., Tongji Univ., Shanghai, China

fYear

2011

fDate

22-24 April 2011

Firstpage

2331

Lastpage

2334

Abstract

The applications of smart structures can solve the problem that external loads and environmental conditions could cause the large displacement and high stress in the structure. This paper proposed a type of smart concrete structure, in which the shape memory alloy(SMA) external tendons producing recovery force due to phase reverse transformation were placed in the concrete frame. Experimental work on smart repairment of a seismic-damaged precast concrete frame with SMA tendons was carried out. Test results showed that SMA could effectively control the deformation and the crack of the seismic-damaged frame. The maximum values of the displacement recovery and the crack closure were 18.9mm and 3mm, respectively.

Keywords

concrete; shape memory effects; structural engineering; environmental conditions; external loads; phase reverse transformation; seismic-damaged precast concrete frames; shape memory alloy; smart concrete structure; smart repairment; smart structures; Civil engineering; Concrete; Earthquake engineering; Intelligent structures; Shape memory alloys; Tendons; seismic-damaged precast concrete frame; shape memory alloy; smart repairment;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774631

Filename

5774631