According to the characteristics of probability and statistics of seismic action,random response of shear type high-layer structures in combined action of horizontal and rocking ground motions was discussed.

This paper presents the analytical formulas of random responses of systems with finite free degrees under multisupport interference by applying the theory of random vibration and space- interrelated ground motion model.

This paper presents the analytical formulas of random responses of systems with finite free degrees under multisupport interference by applying the theory of random vibration and space-interrelated ground motion model.

The Nonlinear seismic reliability of reinforced concrete structures was investigated using an earthquake ground motion model and a structural analysis model properly selected and the stochastic seismic response of the structures was analysed to gain statistics on stochastic response of structure.

The earthquake ground motion model and the structural analysis model are set up, the stochastic seismic response analysis of structure is performed, and the statistics of stochastic response of structure are gained.

This paper analyses the space-intenttelated earthquake model given in leference[1], anddeduas the stochastic response formulas of structres under this model.

In the method the technique of fluorimetric measurement of cerium (Ⅲ) formed by a postcolumn reaction of cerium (Ⅳ) with the species of L ascorbic acid,sulfite and thiosulfate in the effluent is first used.