The impact of the choice of molecular orbital sets on the results of the Ε½ valence-universal coupled cluster method involving up to three-body amplitudes VU-. CCSDT was studied for the H4 model. This model offers a straightforward way of representing all possible symmetry-adapted orbitals. Moreover,
On the accuracy of the continuum method for analysis of coupled shear walls of unequal width
β Scribed by Kuang, J. S.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 352 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1062-8002
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β¦ Synopsis
SUM MARY
The continuous medium technique has been widely used in the preliminary analysis and design of coupled shear walls in tall buildings by practising engineers for many years. One of the basic assumptions made when using this approximate method is that the coupling beams deform with points of contraflexure at mid-span. However, when there is a non-negligible difference between the stiffness's of the structural walls connected by the coupling beams, the points of contraflexure of the beams can move off-centre, and hence noticeable error in the analysis may occur. This paper presents a study on the accuracy of the continuous medium technique for the preliminary analysis of concrete coupled structural walls with unequal width. Comparison of the analytical results between the method and the wide-column analogy has been made. Recommendations for using the continuum method to analyse coupled shear walls are presented.
π SIMILAR VOLUMES
Model studies of the impact of the choice of molecular orbital sets on the accuracy of the results of the state-universal coupled-cluster method involving one-and Ε½ . two-body excitations SU-CCSD were performed for the H4 model, which offers a straightforward way of representing any symmetry-adapted
We comment on the convergence of the general coupling operator for all types of one-configuration or multiconfigurational wave functions that still preserve the one-configuration structure for the energy expression. The choice on the best arbitrary real and antisymmetric parameters inherent in the c
In any optimization using the augmented Hessian technique, the step is not restricted to any length. Since the restriction of the step at each iteration is very important in order to achieve good convergence, we present a coupled method such that the augmented Hessian automatically gives both the ad
Based on a new global variational formulation, a spectral element approximation of the incompressible Navier-Stokes/Euler coupled problem gives rise to a global discrete saddle problem. The classical Uzawa algorithm decouples the original saddle problem into two positive definite symmetric systems.