【摘要】 将腹板开孔钢梁的弹性挠曲变形视为完整钢梁的变形和开孔部分梁段附加变形的迭加;对孔洞处的变形建立了刚性臂模型,变形过程中完整梁段部分保持刚体转动。对孔洞处弯曲应力及变形进行了分析,得到了腹板开孔钢梁弹性挠曲变形的计算公式,并举例进行了验证。更多还原

【Abstract】 The elastic deformation of the I shape simply-supported steel beams with web openings is composed of the deformation of the integrate beam and the additional deformation of the beam with web openings.The model of rigid arm is founded,and the integrate beam part keeps rigid body running.The analysis of deformation and stress are conducted,and the calculating formula is derived of the I shape simply-supported steel beams with web openings,and is validated with an example.更多还原