Performance-Based Seismic Design is now widely recognized as the pre-eminent seismic design and assessment methodology for building structures. In recognition of this, seismic codes may require that buildings achieve multiple performance objectives such as withstanding moderate, yet frequently occurring earthquakes with minimal structural and non-structural damage, while withstanding severe, but rare earthquakes without collapse and loss of life. These objectives are presumed to be satisfied by some codes if the force-based design procedures are followed. This paper investigates the efficacy of the Eurocode 8 forcebased design provisions with respect to RC frame building design and expected seismic performance. Four, eight, and 16-storey moment frame buildings were designed and analyzed using the code modal response spectrum analysis provisions. Non-linear time-history analyses were subsequently performed to determine the simulated seismic response of the structures and to validate the Eurocode 8 force-based designs. The results indicate the design of flexural members in medium-to-long period structures is not significantly influenced by the choice of effective member stiffness; however, calculated interstorey drift demands are significantly affected. This finding was primarily attributed to the code’s enforcement of a minimum spectral ordinate on the design spectrum. Furthermore, design storey forces and interstorey drift demand estimates (and therefore damage), obtained by application of the code force-based design procedure varied substantially from those found through non-linear time-history analysis. Overall, the results suggest that though the Eurocode 8 may yield lifesafe designs, the seismic performance of frame buildings of the same type and ductility class can be highly non-uniform.
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:
Up to now, the search for increased reliability in probabilistic seismic hazard analysis (PSHA) has concentrated on ways of assessing expert opinion and subjective judgement. Although in some areas of PSHA subjective opinion is unavoidable, there is a danger that assessment procedures and review methods contribute further subjective judgements on top of those already elicited. It is helpful to find techniques for objectively assessing seismic source models that show what the interpretations physically mean in terms of seismicity.
Experience shows that well-meaning but flawed design decisions can lead to source models that are incompatible with the seismic history that was used as input. In this paper a method is demonstrated in which large numbers of synthetic earthquake catalogues, that match the completeness thresholds of the historical catalogue, are generated. The study area can be divided into a grid of uniform cells, and the number of earthquakes in each cell in both the historical catalogue and each simulated catalogue are then counted. Comparison of the historical pattern and a set of 1,000 simulated patterns, using a X2 test, shows if the historical pattern is credibly a member of the set of outcomes obtainable from the seismic source model. A second method is to chart the distribution of a large sample of simulated catalogues in terms of magnitude frequency, and observe whether the historical catalogue is comfortably within this distribution, or an outlier. If it proves impossible to replicate the historical catalogue using the model, it casts doubt on whether the model is a valid depiction of the seismicity rates that will govern the future hazard. At the very least, the disparity needs careful investigation to ensure the model is error-free. A worked example is presented here for the UK, using a source model that was used in Global Seismic Hazard Map (GSHAP), compared to one that was artificially constructed to be credible but flawed. Two tests find the GSHAP model to be an acceptable representation of the pattern of seismicity in the UK, while the artificial model is conclusively rejected.
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:
Damping constitutes a major source of uncertainty in dynamic analysis and an open issue to experimental and analytical research. After a thorough review of the current views and approaches existing in literature on damping and its appropriate modelling, this
paper focuses on the implications of the available modelling options on analysis. As result of a series of considerations, a damping modelling solution for nonlinear dynamic analyses of cantilever RC walls is suggested within the frame of Direct Displacement-Based Design, supported by comparative analyses on wall structures.
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:
The published version 1.0 of the new Italian strong-motion database ITACA (Italian ACcelerometric Archive,
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:
) includes to date (December 2010) about 4,000 three-component waveforms up to M 6.9, from more than 1,800 earthquakes up to 6.9, recorded by about 400 stations in the period 1972–2009. The uncorrected and corrected strong motion data are archived and can be retrieved with their metadata, concerning events, stations and waveforms. The aim of this paper is to present the procedures for processing the records included in ITACA, accounting for the heterogeneity of this data set, both in terms of quality and amplitude of records as well as illustrating the main features of the ITACA strong- motion dataset. Later, we focus on the “exceptional” ground-motion records, that we, conventionally, denote as those having peak acceleration and peak velocity larger than 300 cm/s2 and 15 cm/s, respectively. These records are less than 2% of the whole ITACA dataset but they are the most relevant for the seismic hazard and engineering implications.
Such large peak values, recorded at distances up to 30 km, are related not only to the strongest Italian earthquakes, but also to events with magnitude down to 4. Furthermore, we investigate the dependence of the largest peak values on horizontal and vertical directions and on source-to-site distance.
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:
Autodesk® Vault data management software products include Autodesk® Vault Workgroup, Autodesk® Vault Collaboration, Autodesk Vault Collaboration AEC, and Autodesk® Vault Professional software. Vault software manages data creation, simulation, and documentation processes for design, engineering, and construction workgroups. Enjoy more control over design data with revision management capabilities, and quickly find and reuse design data, for easier management of your design and engineering information. Tightly integrated with Autodesk Digital Prototyping and Building Information Modeling (BIM) applications, Autodesk Vault data management software enables teams to more efficiently collaborate and meet tight deadlines.
Best-in-class design tool integration—Manage data associated with the digital model throughout the project lifecycle.
Concurrent design—Multiple users can work collaboratively without overwriting the others' data.
Data reuse—Find, organize, copy, and reuse data to save time, so you can spend more of your workday innovating.
Revision management—Release and track files securely throughout the design cycle to reduce errors.
Scalable multisite solution—Synchronize design data among distributed workgroups with multisite functionality.
New! Autodesk Vault 2012 software now works with Microsoft® SharePoint® 2010 and Microsoft® SQL Server® 2008 R2 to facilitate access to design information across the enterprise
1/ Unpack the rar files.
2/ Unpack the rar files
3/ The Iso file is compressed into Isz files which requires UltraIso to mount.
4/ Install UltraIso (win64 only included) this is a silent install you do not need to activate or register, it is clean but check please or download trial. Google is your friend.
5/ read the nfo or readme file and install.
6/ Stop IIS Server
7/ Copy over dlls
8/ Restart IIS Server and configure license (details in the readme text)
9/ Enjoy
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:
I have been using for a few months with zero issues on Windows 7 x 64 Ultimate
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:
Hello, here is writing fifth course Transportation Engineering student. I am searching an enterprise in Europe where to spend my traineeship for 3 month period as bridge design engineer. I applied to Erasmus student exchange programme, therefore possible financial support. Can you offer something or advice, where to find a traineeship?
The Hyogo-Ken-Nanbu Earthquake caused heavy damage in Kobe city and its surrounding area. To clear the relationship between damage and local site effect, a month after the earthquake, microtremor measurement was performed for about a year. According to the measurement results in the damaged zone, the amplification factor (A) ranges between 2 and 3 which is not so high. However the predominant frequency (F) ranges between 1.5 and 2 Hz which corresponds to that of strong motion. Distribution
of vulnerability index Kg value for ground confirmed the damage belt.
DIRECT 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:
***************************************
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 develops a whole strategy for decision-making, with the full participation of the decision-maker and utilizing continuous feedback. It introduces the use of the very well-known and proven methodology, linear programming, but specially adapted for this purpose. For this, it incorporates a method to include subjective concepts, as well as the possibility of working with many different and even contradictory objectives. The book is liberally populated with diverse case studies to illustrate the concepts. This practical guide will be of interest to anyone undertaking analysis and decision-making, on both simple and complex projects, and who is looking for a strategy to organize, classify, and evaluate the large amount of information required to make an informed decision. The strategy includes methods to analyze the results and extract conclusions from them.
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:
Sustaining Groundwater Resources: A Critical Element in the Global Water Crisis (International Year of Planet Earth)
Author: J. Anthony A. Jones | Size: 12.4 MB | Format:PDF | Publisher: Springer | Year: 2011 | pages: 250 | ISBN: 9048134250
Book Description:
Burgeoning population and climate change are among the most critical challenges facing the 21st century. Both have critical implications for groundwater resources, especially in many developing countries where resources are already under pressure. Due to low rainfall and high evaporation in parts of the Middle East and North Africa, groundwater is not being renewed, and groundwater laid down up to 10,000 years ago is literally being mined for irrigation, often very inefficiently. Over recent decades, groundwater levels have fallen dramatically in key grain-growing regions like the American Great Plains and the North China Plain. As the population grows and emerging economies like China and India demand more food, especially water intensive meat products, agricultural demand for water is set to increase. The rapid shift of population from the countryside to the cities is also adding to this pressure; most old wells in Beijing are now dry. Pollution from industry, agriculture and shanty towns is destroying many groundwater resources; some could take 50 years to clean up even with strict and immediate controls.
This volume looks at the technical, socio-economic and political problems being faced, and at the developments in groundwater science and management that may help create a sustainable future for our planet.
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:
Biological monitoring of running waters is a scientifically and economically valid approach for surveys and monitoring programmes to assess the water quality. Biological Monitoring of Rivers is a timely, up-to-date book that includes a good number of practical how-to-do chapters.
* Up-to-date assessment of biological water monitoring
* Practical how-to-do chapters help the practitioner
* Provides a broad survey of methods uses inside and outside the EU
* Gives perspectives for future applications
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: 37566245314075593192.jpg]](http://pic.civilea.com/images/37566245314075593192.jpg)
![[Image: info.png]](https://forum.civilea.com/postgen/icon/info.png){kind=icon}
![[Image: Download.png]](https://forum.civilea.com/postgen/icon/Download.png){kind=icon}
![[Image: 70172449776988229266.jpg]](http://pic.civilea.com/images/70172449776988229266.jpg)
![[Image: 82873397080806013770.jpg]](http://pic.civilea.com/images/82873397080806013770.jpg)
![[Image: 74901567508438667222.jpg]](http://pic.civilea.com/images/74901567508438667222.jpg)
![[Image: screen.png]](https://forum.civilea.com/postgen/icon/screen.png){kind=icon}
![[Image: 56575635609571426607.png]](http://pic.civilea.com/images/56575635609571426607.png)
![[Image: tips.png]](https://forum.civilea.com/postgen/icon/tips.png){kind=icon}
![[Image: comments.png]](https://forum.civilea.com/postgen/icon/comments.png){kind=icon}
![[Image: crack.png]](https://forum.civilea.com/postgen/icon/crack.png){kind=icon}
![[Image: password.png]](https://forum.civilea.com/postgen/icon/password.png){kind=icon}
![[Image: 77547546089528248340.jpg]](http://pic.civilea.com/images/77547546089528248340.jpg)
![[Image: 91455498620836546138.jpg]](http://pic.civilea.com/images/91455498620836546138.jpg)
![[Image: 04917205375242994354.jpg]](http://pic.civilea.com/images/04917205375242994354.jpg)