Cyclic Loading Test of Structural Walls with Small Openings

International Journal of Concrete Structures and Materials

Table 3 Test results.

Specimen	\(V_{f\left( 1 \right)}\)^a (kN)	\(V_{f\left( 2 \right)}\)^b (kN)	Expected failure location	\(V_{f}\)^c (kN)	\(V_{n}\) (\(V_{c} + V_{s}\)) (kN)	\(K_{i}\) (kN/mm)	\(V_{test}\) (kN)	\(\delta_{m}\)^d (%)	\(\delta_{u}\)^e (%)	\(\frac{{V_{test} }}{{V_{f} }}\)
A	271	–	Wall base	271	510	30.8	330.8	1.3	1.42	1.22
B	273	279	Wall base	273	498	30.12	326	1.23	1.42	1.19
C	272	267	Opening	267	502	31.29	331.5	1.33	1.41	1.24
D	278	258	Opening	258	503	28.79	352.5	1.45	1.78	1.37
E	279	258	Opening	258	502	29.54	356.2	1.49	1.87	1.38

^a\(V_{f\left( 1 \right)} = M_{{n\left[ {base} \right]}} /h,\) where \(M_{{n\left[ {base} \right]}}\) = nominal moment strength at wall base, \(h\) = height from wall base (3.375 m).
^b\(V_{f\left( 2 \right)} = M_{{n\left[ {opening} \right]}} /h^{\prime},\) where \(M_{{n\left[ {opening} \right]}}\) = nominal moment strength at opening, \(h^{\prime}\) = height from the lowest opening (3.075 m).
^c\(V_{f} = the lesser of V_{f\left( 1 \right)} and V_{f\left( 2 \right)}\).
^dDisplacement ratio at maximum strength.
^eDisplacement ratio when the specimen reached 70% of the maximum strength after the maximum strength.