نتایج جستجو برای: beam column structure

تعداد نتایج: 1722807  

2015
Atishay Lahri Vivek Garg

The dynamic nature of loads, seasonal variation of soil properties, uneven soil strata below footings or inappropriate design of foundation makes differential settlement inevitable. Differential settlement is largely responsible for developing forces or changing the existing forces in the structure and is often considered as the underlying cause of many structural failures. A structural enginee...

2012
Shemy S. Babu S. Sreekumar

The behaviour of beam-column joint plays an important role in the response of a steel moment resisting framed structure especially under seismic excitation. Semi rigid connections like bolted joints, allow better energy dissipation and provide good response under lateral loads. In this paper the ductility and energy dissipation characteristics of semi rigid bolted connections using double web a...

2012

In this paper, we show how the connections between max-product message passing for max-product and linear programming relaxations allow for a more efficient exact algorithm for the MAP problem. Our proposed algorithm uses column generation to pass messages only on a small subset of the possible assignments to each variable, while guaranteeing to find the exact solution. This algorithm is three ...

Journal: :J. Applied Mathematics 2012
Hsien-Yuan Lin Jeng-Nan Lee Wen-Hao Sung

This paper employs the numerical assembly method NAM to determine the exact frequencyresponse amplitudes of an offshore structure such as piles or towers having the form of a hollow column filled with multiple fluids, immersed in water, carrying an eccentric tip mass supported by a translational spring and/or a rotational spring, and subjected to a harmonic force. The hollow column is modeled a...

2012
David Belanger Alexandre Passos

In this paper, we show how the connections between max-product message passing and linear programming relaxations for MAP allow for a more efficient exact algorithm than standard dynamic programming. Our proposed algorithm uses column generation to pass messages only on a small subset of the possible assignments to each variable, while guaranteeing to find the exact solution. This algorithm is ...

2012
H. S. Park

This study presents the optimal drift design method to control the elastic and inelastic performance of steel moment frames. This is formulated as a problem that minimizes the lateral displacement at the top of a building satisfying the constraints on the total structural weight and the column-to-beam strength ratios at the joints. This uses the resizing method based on the linear static analys...

2014
Muhammet Karaton

A beam-column element based on the Euler-Bernoulli beam theory is researched for nonlinear dynamic analysis of reinforced concrete (RC) structural element. Stiffness matrix of this element is obtained by using rigidity method. A solution technique that included nonlinear dynamic substructure procedure is developed for dynamic analyses of RC frames. A predicted-corrected form of the Bossak-α met...

2007
D. K. Johnson I. Blumenfeld C. D. Barnes C. E. Clayton F. J. Decker S. Deng P. Emma M. J. Hogan C. Huang R. Ischebeck R. Iverson N. Kirby P. Krejcik W. Lu K. A. Marsh M. Zhou

A new method for generating positrons has been proposed that uses betatron X-rays emitted by an electron beam in a high-K plasma wiggler. The plasma wiggler is an ion column produced by the head of the beam when the peak beam density exceeds the plasma density. The radial electric field of the beam blows out the plasma electrons transversely, creating an ion column. The focusing electric field ...

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