DYNAMIC ANALYSIS OF THIN-WALLED AND VARIABLE OPEN SECTION BEAMS WITH SHEAR FLEXIBILITY

被引：16

作者：

AMBROSINI, RD ^{[1
]}

RIERA, JD ^{[1
]}

DANESI, RF ^{[1
]}

机构：

[1] UNIV FED RIO GRANDE SUL,CPGEC,BR-90470000 PORTO ALEGRE,RS,BRAZIL

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1995年 / 38卷 / 17期

关键词：

THIN-WALLED BEAMS; SHEAR FLEXIBILITY; NONUNIFORM BEAMS; DYNAMIC ANALYSIS; STATE VARIABLES; DISPERSION EQUATION;

D O I：

10.1002/nme.1620381703

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The equations of motion of thin-walled beams with open cross-section, considering the effects of shear flexibility and rotatory inertia in the stress resultants, as well as variable cross-sectional properties are presented using a state variables approach. These equations are based on Vlasov's theory of thin-walled beams, which is modified to include the effects indicated above. The resulting equations are used in the determination of the natural frequencies of an open cross-section prestressed concrete beam. Comparisons with other formulations are also presented employing the waves dispersion equation.

引用

页码：2867 / 2885

页数：19

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