《Table 3 Sectional internal force of members at the peak load》

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《交错桁架体系RC柱与桁架连接节点受力性能分析》

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Table 3 show s the sectional internal forces of the chord and w eb member at the peak load，in w hich Nc，Mc，and Vcare the axial force，bending moment，and shear force of the chord，respectively.It should be noted that the cross section of chord beyond the gusset plate rather than the cross section adjacent to the RC column is adopted to extract the internal force.Therefore，the influence of gusset plate is excluded and a real internal force state of the chord is obtained.The axial force is positive w hen the member is in tension.The bending moment is treated positive w hen the bottom side of cross section is in tension.M oreover，the shear force is positive if it makes the member rotate clockw ise.As show n in Table 3，Mcand Vcare generally small in all w orking conditions except for Vcin 0-T.Ncis significantly larger in the cases w here horizontal displacement is restricted and Nd increases by approximately 10%.