对无粘结部分预应力混凝土迭合梁变形计算方法的研究和探讨

Experimental research on calculation methods of deflection of unbonded partially prestressed concrete composite beams

本文给出了无粘结部分预应力迭合梁变形的试验研究成果．在此基础上，结合无粘结部分预应力混凝土梁及普通混凝土迭合梁的已有成果，提出了二套变形计算公式．经与试验结果验证知，这些公式计算精度较高，可满足工程设计要求．

This paper presents the experimental results of the deflection tests of 20 unbonded partially prestressed concrete composite beams. basedon to the metioned work and the previous studies on reinforced concrete composite beams, two deflection formulas of unbonded partially prestressed concrete composite beams are proposed. The values calculated are in good fittness with those tested. The comparison demonstrates the adoptability of the formular in ergineering design.