MULTI-HAZARD DESIGN OF MID- TO HIGH-RISE STRUCTURES
Author: ELISA Y. CHEN | Size: 2.6 MB | Format:PDF | Quality:Unspecified | Publisher: University of Illinois at Urbana-Champaign, 2012 | Year: 2012 | pages: 101
The importance of multi-hazard design of structures has emerged in the last decade, as extensive media coverage of natural disasters have increased public awareness of the catastrophic damage that hurricanes and earthquakes can wreak on buildings and infrastructure. Current design codes treat hurricanes and earthquakes as completely independent, which, while true in the physical sense, does not account for the increased risk to structures in regions where both hazards are present. The application of multi- hazard design to mid- to high-rise structures is advantageous, as they have the potential of being governed by either load and have high costs and large occupancy. This study, which develops multi-hazard design, is essential for improving the safety of structures, reducing building life cycle costs, and increasing efficiency in design.
Presently, experts in the fields of seismic and wind structural engineering conduct research autonomously and possess only basic knowledge in the other area of study. To encourage an interdisciplinary approach to multi-hazard design, this thesis presents a comprehensive review of the characteristics of hurricanes and earthquakes along with an explanation of how physical features of the hazards are represented in design codes. With a knowledge baseline established, an analytical model representing earthquake design and one representing wind design can be created and assessed for structural behavior under various loading. With the use of eigenvalue, static pushover, and dynamic time history analyses, it is possible to evaluate the structural response of each model to wind and earthquake loading and compare the behavior of each at a global, intermediate, and local level.
Results of this thesis research show that structural response differs significantly for buildings designed for different hazards. Wind designed buildings are more flexible than those designed for earthquake due to lower lateral load demands, however earthquake designed structures have much greater strength and ductility due to its capacity for substantial plastic hinge development before structural failure. The findings on the variation in structural behavior from the analyses provide a unique understanding of the effects of wind and earthquake is necessary for the advancement of multi-hazard design.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Lateral movements in composite high-rise buildings under Seismic Action
Author: T. Fatima*, S. Fawzia* and A. Nasir** | Size: 0.32 MB | Format:PDF | Quality:Unspecified | Publisher: Queensland University of Technology , 2 George Street, Brisbane, QLD 4000 | pages: 8
Daring human nature has already led to the construction of high-rise buildings in naturally
challenging geological regions and in worse environments of the world. However; literature review
divulges that there is a lag in research of certain generic principles and rules for the prediction of
lateral movement in multistorey construction. The present competitive trend orders the best possible
used of available construction material and resources. Hence; the mixed used of reinforced concrete
with structural steel is gaining prevalence day by day. This paper investigates the effects of Seismic
load on composite multistorey building provided with core wall and trusses through FEM
modelling. The results showed that increased rigidity corresponds to lower period of vibration and
hence higher seismic forces. Since Seismic action is a function of mass and response acceleration,
therefore; mass increment generate higher earthquake load and thus cause higher impact base shear
and overturning movement. Whereas; wind force depends on building exposed, larger the plan
dimension greater is the wind impact. Nonetheless; outriggers trusses noticeably contribute, in
improving the serviceability of structure subjected to wind and earthquake forces.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Article/eBook Full Name: An Overview of Cylindrical Water Tank Buckling Analysis Under Seismic Loading
Author(s): André Turbat
Publish Date: 2004
Published By: ASME
Related Links:
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Flexural Crack width Calculation for Rectangular RC (Beam / slab)
According ACI350-06 &ACI224R-01, Rev0
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
This book covers a wide range of edited papers in the areas of fluid mechanics presented at the Seventh International Conference on Advances in Fluid Mechanics held at The New Forest, UK in May 2008. The conference emphasizes the advancement of knowledge in fluid mechanics problems with new applications. The basic mathematical formulations and their solutions by analytical and numerical methods, are discussed together with the experimental work.This papers in this book are presented under the following topics: Convection, Heat and Mass Transfer; Experimental versus Simulation Methods; Computational Methods in Fluid Mechanics; Multiphase Flows; Boundary Layer Flows; Hydraulics and Hydrodynamics; Wave Studies; Industrial Applications; Biofluids; Turbulence Flow; Environmental Fluid Mechanics; and Fluid Structure Interactions
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Paper title: Air-Void Stability in Self-Consolidating Concrete
Document Name: 99-M41
Author(s): Kamal H. Khayat and Joseph Assaad
Publication: Materials Journal
Volume: 99
Issue: 4
Pages: 408-416
Keywords: admixture; air void; consolidation
Date: July 1, 2002
1) UIC-772-1. Standard principles for the use of bearings made from various materials for railway bridges
2) UIC-774-3. Track-Bridhe Interaction. Recomandations for calculations
3) UIC-776-1. Charges a prendre en consideration dans le calcul des ponts-rails
4) UIC-776-2. Design requirements for rail-bridges based on interaction phenomena between train, track and bridge
5) UIC 776-3. Deformation of bridges
6) Design of railway structures to the Structural Eurocodes
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
Soil–structure interaction in tall buildings by a discrete force method
Author: A. Nadjai, BEng, MSc, PhD, MIStructE, MIABSE, PGCUT, D. Johnson, BEng, MSc, PhD, MICE, FIStructE, and J. F. Lyness, BSc, MSc, PhD, MICE, FIStructE, AFIMA | Size: 0.22 MB | Format:PDF | Quality:Unspecified
The importance of base flexibility on the elasto-plastic behaviour of spatial shear walls subjected to any type of loading was examined. An analysis of elasto-plastic spatial shear walls was developed using a discrete force method, which models the shear walls as a system of interconnected discrete structural elements and the base flexibility by effective rotational and vertical elastic stiffnesses Kb and Kv, respectively. As the magnitudes of these stiffnesses depend on the properties of the supporting soil and also on the characteristics of the foundation itself, different soils were considered. The analysis was based on the force approach, using as redundants the shear forces, not only at the contraflexural points of the connecting beams, but also at wall junctions. The elasto-plastic condition was restricted to the connecting beams by using a convenient bilinear model for the force formulation. The objective was to provide a theoretical treatment of the foundation–structure interaction that is suitable for implementation in the discrete force method. In addition, the results obtained in the discrete force modelling of the soil interaction are presented, and the applicability of the model to some representative problems is discussed.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
![[Image: 68467086873151767811.png]](https://pic.civilea.com/images/68467086873151767811.png)
![[Image: info.png]](http://postgen.civilea.com/icon/info.png){kind=icon}
![[Image: download.png]](http://postgen.civilea.com/icon/download.png){kind=icon}
![[Image: 35724326587651391559.png]](https://pic.civilea.com/images/35724326587651391559.png)
![[Image: 54293816692704821299.png]](https://pic.civilea.com/images/54293816692704821299.png)
![[Image: password.png]](http://postgen.civilea.com/icon/password.png){kind=icon}
![[Image: 20300022658409165519.jpg]](https://pic.civilea.com/images/20300022658409165519.jpg)
![[Image: Download.png]](https://forum.civilea.com/postgen/Download.png)
![[Image: 15378818764339957454.png]](https://pic.civilea.com/images/15378818764339957454.png)