I am looking for following Paper inside ASCE – Structures Conference 2008
Summers, P. (2008) Design of Modular Blast-Resistant Steel-Framed Buildings in Petrochemical Facilities. Structures Congress 2008: pp. 1-7.
doi: 10.1061/41016(314)177
Design of Modular Blast-Resistant Steel-Framed Buildings in Petrochemical Facilities
Article/eBook Full Name: Performance-Based Plastic Design: Earthquake-Resistant Steel Structures
Author(s): Subhash C. Goel, Shih-Ho Chao
Publish Date: 2008
ISBN: 1580017142
Published By: ICC
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Dynamic stability of cracked columns; the stiffness reduction method
Author: A. Ranjbarana, H. Rousta, M. Ranjbaran, M. Ranjbaran | Size: 890 KB | Format:PDF | Quality:Unspecified | Publisher: Sciencedirect/Elsevier | Year: 2013 | pages: 8
A new formulation for the dynamic stability of cracked columns is proposed. In this formulation,
a differential equation governing the free vibration of a cracked column subjected to compressive axial
force is derived. The solution of the proposed equation needs only the end conditions for its solution
(similar to that of intact beam columns). The equation is solved using the Laplace Transform. Both
conservative and non-conservative forces are considered. The closed form solution is then used in the
dynamic stability investigation of the cracked column with different boundary conditions. The accuracy,
efficiency and robustness of the work are verified through numerical examples.
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The thermalbucklingandpostbucklinganalysisoflaminatedcompositebeamswithtemperature-
dependentmaterialpropertiesispresented.Thegoverningequationsarebasedonthefirst-ordershear
deformationbeamtheory(FSDT)andthegeometricalnonlinearityismodeledusingGreen’sstrain
tensor inconjunctionwiththevonKarmanassumptions.Thedifferentialquadraturemethod(DQM)as
an accurate,simpleandcomputationallyefficientnumericaltoolisadoptedtodiscretizethegoverning
equationsandtherelatedboundaryconditions.Adirectiterativemethodisemployedtoobtainthe
criticaltemperature(bifurcationpoint)aswellasthenonlinearequilibriumpath(thepostbuckling
behavior)ofsymmetricallylaminatedbeams.Theapplicability,rapidrateofconvergenceandhigh
accuracy ofthemethodareestablishedviadifferentexamplesandbycomparingtheresultswiththose
of existinginliterature.Then,theeffectsoftemperaturedependenceofthematerialproperties,
boundaryconditions,length-to-thicknessratios,numberoflayersandplyangleonthethermal
bucklingandpostbucklingcharacteristicofsymmetricallylaminatedbeamsareinvestigated.
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A high performance fibre-reinforced
cementitious composite (HPFRCC) material is developed
to be used for retrofitting reinforced concrete
members. It can be applied to the face of a concrete
member to the desired thickness as a wet mix or as an
adhesively-bonded prefabricated slab or strip. The
material is compatible with concrete and possesses
favourable strength and ductility properties, desirable
for seismic retrofit. It overcomes some of the problems
associated with the current techniques based on
externally bonded steel plates and fibre-reinforced
polymer (FRP) laminates caused mainly by the
mismatch of their tensile strength and stiffness with
that of the concrete member being retrofitted. An
extensive rheological analysis is undertaken to
develop the appropriate mixes using different types
and mix proportions of constituent materials including;
fine steel fibres, fine quartz sand, silica fume,
cement and superplasticizer. Much reduced amounts
of steel fibres are used compared to the previous
studies so that ordinary mixing procedures could be
applied and a more cost-effective retrofitting material
could be developed. Samples made of the optimum
mixes are shown to posses very high compressive and
tensile strengths and sufficient ductility for the composite
plaster to be used externally for strengthening
and seismic retrofitting of concrete members.
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This study presents the investigation of the approach which was presented by Thaer M. Saeed Alrudaini
to provide the alternate load path to redistribute residual loads and preventing from the potential progressive collapse of
RC buildings. It was proposed to transfer the residual loads upwards above the failed column of RC buildings by vertical
cables hanged at the top to a hat steel braced frame seated on top of the building which in turn redistributes the residual
loads to the adjacent columns. In this study a ten-storey regular structural building has been considered to investigate
progressive collapse potential. Structural design is based on ACI 318-08 concrete building code for special RC frames and
the nonlinear dynamic analysis is carried out using SAP2000 software, following UFC4-023-03 document. Nine
independent failure scenarios are adopted in the investigation, including six external removal cases in different floors and
three removal cases in the first floor. A new detail is proposed by using barrel and wedge to improve residual forces
transfer to the cables after removal of the columns. Simulation results show that progressive collapse of building that
resulted from potential failure of columns located in floors can be efficiently resisted by using this method
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Today i find a little Ruby script that download books from Issuu.
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The first of its kind, Designing Tall Buildings is an accessible reference that guides you through the fundamental principles of designing high-rises. Each chapter focuses on one theme central to tall-building design, giving you a comprehensive overview of the related architecture and structural engineering concepts. Mark P. Sarkisian provides clear definitions of technical terms and introduces important equations, to help you gradually develop your knowledge. Later chapters allow you to explore more complex applications, such as biomimicry. Projects drawn from Skidmore, Owings and Merrill’s vast catalog of built high-rises, many of which Sarkisian designed, demonstrate these concepts.
This book advises you to consider the influence of a particular site’s geology, wind conditions, and seismicity. Using this contextual knowledge and analysis, you can determine what types of structural solutions are best suited for a tower on that site. You can then conceptualize and devise efficient structural systems that are not only safe, but also constructible and economical. Sarkisian also addresses the influence of nature in design, urging you to integrate structure and architecture for buildings of superior performance, sustainability, and aesthetic excellence.
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Performance of the Base-Isolated Christchurch Women's Hospital in the September 4, 2010, Darfield Earthquake and the February 22, 2011, Christchurch Earthquake
Author: Henri P. Gavin, Robert L. Nigbor | Size: 625 KB | Format:PDF | Quality:Unspecified | Publisher: ASCE | Year: 2012 | pages: 10
The Christchurch Women's Hospital, completed in March 2005, is the only base-isolated building in the South Island of New Zealand. The displacement capacity of the base-isolation system and the super-structure ductility capacity are designed to meet 2000-year return-period demands. Detailed structural evaluations after the 2010 Darfield Earthquake and the 2011 Christchurch Earthquake revealed damage only to sacrificial non-structural components at the seismic gaps. Because the structure was not instrumented at the time of these earthquakes, basic design information, ground motion records from nearby sites, and first-hand accounts of the motion in the structure are used to estimate the responses to the main shock and a large after- shock. Results from this modeling effort are used to corroborate reports of structural response from staff present at the time of the main shock and aftershocks. Subsequent instrumentation of the structure is described and will be used to collect aftershock responses for validation of numerical models
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