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22 August 1988, Volume 7 Issue 4 Previous Issue    Next Issue

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Explicit Criteria for Finite Stabilization of Continuous-Time Time-Invariant Systems Xu Maozeng 1988, 7(4): 16-24.  Abstract ( )   PDF (461KB) ( )   In this paper a theorem is first given which establishes the relationship of controllability between the discrete-time description and the corresponding continuous-time one for a linear time-invariant system. The explicit criteria are given for finite stabilization of the system both with and without disturbance. Computations required by the criteria given here are much simpler than those by the criteria given in ref[1]. Related Articles | Metrics

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Finite Element Analysis of Anti-Slide Pile Model Test in Elastic Stage Xu Liangde, Tang Zhicheng, Peng Longyin 1988, 7(4): 51-60.  Abstract ( )   PDF (553KB) ( )   According to the test condition when slide mass is sandy clay, the authors study the deformation of anti-slide pile and soil resistance. Related Articles | Metrics

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Study of Behavior of Reinforced Concrete Members under Pulling Force and Torsion Cheng Houchang, Huang Tang 1988, 7(4): 61-67.  Abstract ( )   PDF (462KB) ( )   In this paper, an expression of the coefficient of reducing cracking resistance in reinforced concrete torsional members under pulling force and a formula for calculating the ctacking resistance are derived, based on the theory of Hsu's inclined bending and concrete characteristics under biaxial strength. According to the theory of space truss with variable angle, the effect of pulling force on torsional ultimate strength of members is analyzed. A formula for calculating ultimate strength of reinforced concrete tortional members is presented. Fourteen reinforced concrete members were tested, and the test results are agreeable with those of the theoretical calculations. Related Articles | Metrics