钢纤维砼预应力连续叠合板弯矩调幅限值研究

Study on the Limitation of Moment Redistribution of SFRC Prestressed Continuous Composite Plate

通过 3块 2跨钢纤维混凝土预应力连续叠合板的试验研究 ,分析了预应力连续叠合板塑性内力重分布的特点及影响弯矩调幅的因素 ,认为钢纤维混凝土的弯矩调幅值可适当地提高 ,最后提出了二次受力钢纤维混凝土预应力连续叠合板的弯矩调幅限值公式 。

Through the experiment study of three double spans SFRC pretressed continuous composite plates,the features of plastic moment redistribution of prestressed continuous composite plates and the factors of influencing moment redistribution are analyzed in this paper. A formula of the limitation of moment redistribotion of secondary loading SFRC prestressed continuous composite plates is presented. It provides basis for engineering application of the plates.