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Official Journal of the Japan Wood Research Society

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Table 3 Test results of specimens

From: Flexural behavior of bamboo–concrete composite beams with perforated steel plate connections

SpecimenP = 30 kNΔ = L/300Longitudinal cracking stateUltimate statePL/300/Pmax\( P_{{s_{\text{u}} }} \)/Pmax
ΔStiffness increase timesEPL/300Increase times of PL/300E\( P_{{s_{\text{u}} }} \)\( \Delta_{{s_{\text{u}} }} \)EPmaxIncrease times of PmaxΔmax
B0-127.28.457.058.70.15
B0-227.78.849.559.20.18
BP100-16.64.160.9433.73.920.9142.311.40.8571.91.3557.00.470.59
BP100-26.74.100.9433.23.860.9036.09.40.8768.01.2854.40.490.53
BP150-16.34.360.9638.04.420.9659.315.70.8672.71.3752.30.520.82
BP150-27.03.920.9233.23.860.9051.013.80.8576.21.4356.60.440.67
BP200-16.74.100.9433.83.930.9164.723.30.6873.81.3958.40.460.88
BP200-26.54.220.9534.33.990.9270.229.70.5666.81.2550.60.511.05
BP250-18.03.430.8630.33.520.8661.125.60.5771.41.3452.70.420.86
BP250-26.93.980.9234.74.030.9281.11.5245.80.43
BP300-19.52.890.7626.83.120.8078.61.4855.30.34
BP300-28.43.270.8329.23.400.8460.7280.4981.71.5374.70.360.74
  1. P is the load, kN; Δ is the mid-span displacement, mm; the results of bamboo beams are referred to evaluate the increase times of composite beams