TY - JOUR
T1 - Building response to tunnelling- and excavation-induced ground movements
T2 - using transfer functions to review the limiting tensile strain method
AU - Dalgic, Korhan Deniz
AU - Hendriks, Max A.N.
AU - Ilki, Alper
N1 - Publisher Copyright:
© 2017 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/6/3
Y1 - 2018/6/3
N2 - In this paper, limiting tensile strain method (LTSM) is reviewed, and advantages and disadvantages resulted from the simplicity of this method are examined in the light of the findings of the existing experimental and numerical studies. Using the viewpoint of the transfer functions for the LTSM, a more independent sight for the interpretation of the relationships between deflection ratio, structure’s geometry, longitudinal/shear stiffness ratio and the limiting tensile strain is provided. In addition, the effect of average horizontal strain is included simply in the modified deep beam equations. Using reported data and observed damage classes of real and simulated case studies available in the literature, back-calculations for the coefficients of the transfer function are made. After comparing the back-calculated coefficients to the original coefficients of the LTSM, it is shown that observed damage and measured crack widths are reasonably compatible with the proposed limiting tensile strain boundaries. Also, it is shown that for the cases in which moderate or higher damage was observed, the original deep beam equations tend to underestimate the resultant damage.
AB - In this paper, limiting tensile strain method (LTSM) is reviewed, and advantages and disadvantages resulted from the simplicity of this method are examined in the light of the findings of the existing experimental and numerical studies. Using the viewpoint of the transfer functions for the LTSM, a more independent sight for the interpretation of the relationships between deflection ratio, structure’s geometry, longitudinal/shear stiffness ratio and the limiting tensile strain is provided. In addition, the effect of average horizontal strain is included simply in the modified deep beam equations. Using reported data and observed damage classes of real and simulated case studies available in the literature, back-calculations for the coefficients of the transfer function are made. After comparing the back-calculated coefficients to the original coefficients of the LTSM, it is shown that observed damage and measured crack widths are reasonably compatible with the proposed limiting tensile strain boundaries. Also, it is shown that for the cases in which moderate or higher damage was observed, the original deep beam equations tend to underestimate the resultant damage.
KW - brick masonry
KW - damage assessment
KW - excavation
KW - Settlement
KW - tunnels & tunnelling
UR - http://www.scopus.com/inward/record.url?scp=85026902351&partnerID=8YFLogxK
U2 - 10.1080/15732479.2017.1360364
DO - 10.1080/15732479.2017.1360364
M3 - Article
AN - SCOPUS:85026902351
SN - 1573-2479
VL - 14
SP - 766
EP - 779
JO - Structure and Infrastructure Engineering
JF - Structure and Infrastructure Engineering
IS - 6
ER -