波形钢腹板PC组合箱梁简化计算及试验研究

Experimental Study and Predigestion Calculate of Prestressed Concrete Box-Girder With Corrugated Steel Webs

通过对波形钢腹板PC组合箱梁模型梁的加载全过程试验,分析了荷载-挠度变形特征、波形钢腹板和上、下混凝土翼缘板截面高度方向的应变分布以及破坏模态.并根据能量原理探讨了波形钢腹板的褶皱效应及波形钢腹板组合箱梁的弯曲应变计算模式.其模型计算结果与试验结果吻合较好.

Prestressed concrete box-girder with corrugated steel webs are tested. The load-deflection and the failure model and the strain distribution along the height of composite section are analysed. The folding effect of corrugated steel webs and flexural strain computation model of composite box-girder are discussed by theory of the energy. The values predicted by the simplified calculation model are found to correlate well the measured data.