THE STRAIN OF THE BARS IN THE STRUCTURAL COLUMNS OF THE PRESTRESSED EARTHQUAKE-RESISTANT BRICK-WALLS
Luo Wankang
DOI:10.11835/j.issn.1674-4764.1995.01.003
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,1995,Pages -
- Abstract
Through the comparative tests of prestressed and non-prestressed brick-walls un-der the repeated lateral loading,the effect of the prestress-force to the strain distribution in the non-prestressed bars of the structural columns has been investigated.This effect is beneficial:the pre-stress-force will reduce the value of strain in the bars of the lower part in the columns and uniformize the strain distribution along the whole height of the columns.Furthermore,instead of a strainreduction,the strain of prestressed be will increase along with the increasing of the lateral load.Thus,the coefficient of prestress-force-increase could be calculated in the tWo stages of the crack-resistance and ultimate bearing capacity.As a result,both the prestressed and non-prestressed barsare able to give the potential of their bearing capacity a full play,and improve the earthquake-resis-tant property.