最新刊期
卷 13 ， 期 3 ， 1991
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- 摘要：This paper presents finite element calculations of the body of MAN'S dry gas holders with a volume of 120000m~3 under internal pressure and wind load. The analyses of displacements and internal forces of the body are presented. The control points of strength and rigidity check are determined. The work in this paper is very valuable to body's design.482|521|0更新时间：2023-11-28
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- 摘要：In this paper, the vortex electric field is computed. It is caused by magnetic field subject to two dimensional change. This problem can't be solved in general physics. Two examples are listed.679|361|0更新时间：2023-11-28
- 摘要：A higher-order shear deformation theory is used to analyse nonlinear bending of symmetrically laminated angle-ply rectangular plates. The nonlinear governing differential equations are solved here by using perturbation method. Numerical rerults are presented graphically for vairous parameters of laminated plate. The present solutions are compared with those obtained using the classical plate theory. A lot of significient conclusions are obtained.526|584|0更新时间：2023-11-28
- 摘要：In this paper, the. optmization structure of downflow wastewater distributor in an anaerobic fluidized bed is studied by means of orthogonal test and statistical analysis with the object of minimum return flow rate.The sequence of importance, the prominent factors affecting performance of the distributor, and the optimum structure of downflow wastewater distributors are obtained.376|421|0更新时间：2023-11-28
- 摘要：A two-story and two-space structure model (1/4 scale) is tested under low-cyclic loading for studying the antiseismic behavior of the brick building with frame on the ground floor. This paper presents mainly the development and pattern of cracks, failure mechanism,hysteresis behavior, strength and stiffness, ductility and energy dissipation. The calculated results by elastic finite elemet method are also compared with the results of test.387|468|0更新时间：2023-11-28
- 摘要：In this paper, a constitutive function in form of integration is presented for a nonlinear analysis of structures of linear elements. With applications of a constitutive function, the truss and frame elements material nonlinear stiffness equations are derived. The results shows the convenience in numerical analysis and the ability to solve some difficult problems in tn the structural behavior study both in loading and unloading process by use of the presented constitutive function.433|8|0更新时间：2023-11-28
- 摘要：This paper summarized the previous research results of the physical-mechanical properties of the hydrated calcium silicate crystals and the relations between the hydrates and mechanical properties and durability of lime-sand materials. The key topicals of the relations between the hydrates and properties of lime-sand materials are discussed.394|7|0更新时间：2023-11-28
- 摘要：In this paper, a new method of studying multicomponent micell complex with fluoresence spectrometry and ion exchange is presented. This method is simple, clear and rapid. The reaction-mechanism of micellar complex is presented. The micellar electric sign is studied. The decomposing state of flourent reagent in the solution is described.385|8|0更新时间：2023-11-28
- 摘要：In this paper, a solution of propagation wave in an. unconstrained damping viscoelastic cylindrical shells of infinte length under forced vibration is derived by Fourier integral transform techniques. The power flow transmitted along it is analysed. The power flow in an elastic cylindrical shell and that in a viscoelastic shell are compared. The effects of vibration reduction in two viscoelastic shells with different thickness are compared. The results provide a reference for designer in structural vibration reduction.443|7|0更新时间：2023-11-28
- 摘要：Practical signicance of deceloping high strength and superhigh strength concrete was described in this paper. Development of high strength and super-high strength concrete in other countries was reviewed by authors, A new type of high strength and snper-high strength concrete, alkali-slag concrete, studied by authors, was introduced. This new concrete has more excellent properies than normal one, it can be used as either medium strength concrete or special concrete, high strength ahd super-high strehgth cohcrete.531|8|0更新时间：2023-11-28
- 摘要：In this paper, a new class of augmented Langrangian function for solving optimization problem with twice continuously differentiable inequality constraints is studied. Under mild assumptions on the parameters of augmented function, the equivalence of stationary points of the function and K-T points of the restricted problem is proved as well as their extreme points.832|7|0更新时间：2023-11-28
- 摘要：Through the static tests of five two-span continuous beams with a relatively small steel ratio, the regularity of redistribution of internal forces of continuous beams with moment modulation is studied, and the moment modulation influence on cracking and deflection of continuous reinforced concrete beams under service loads is analyzed in detail. The conclusions obtained may be used as reference materials for drafting of design code considering redistribution of internal forces.722|7|0更新时间：2023-11-28
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