Title :
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
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;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5774631
