Post-Tensioned Concrete Walls and Frames for Seismic-Resistance
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This case-study describes an innovative application of post-tensioned concrete construction in the new David Brower Center urban mixed-use development.
The use of post-tensioning in concrete structures to resist gravity loads is a well established technology with wide application. Recent advances in design practice and analysis techniques are demonstrating that post-tensioning also offers significant cost and performance benefits when incorporated into seismic resisting concrete walls and frames.
For more information the download link has been provided.
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Hi CIVILEA comunity, I found in other page this great soft: STAAD V8i but in Portable Version... I downloaded and... working ¡¡
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Revit Architecture allows architects to focus on designing buildings, without design software or application learning curves getting in the way. Work in any view, iterate throughout your different design phases, and quickly and easily make changes to major compositional elements. Create comprehensive design proposals in record time. See your ideas realized on the fly with 3D views and fully rendered scenes. You can even make late-stage changes with full confidence that your plans, schedules, and construction documents are coordinated.
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Quote:This is not version "suite". I think it is different from Revit Structure 2009 Suite so i posted it.
If moderator or admin don't agree with me, you can delete this threat.
Hope to help somebody download more easiler.
Thanks
Posted by: abudabeeja - 09-09-2009, 02:05 AM - Forum: ASTM
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Contaminated Sediments: Characterization, Evaluation, Mitigation/Restoration, and Management Strategy Performance
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Contaminated Sediments: Characterization, Evaluation, Mitigation/Restoration, and Management Strategy Performance
(Astm Special Technical Publication, 1442.)
By ASTM International
Publisher: ASTM International
330 pages
2003-05-01
ISBN: 0803134665
English
PDF 5.74MB
Product Description:
This new publication reviews recent advances in contaminated sediments-management-related research and focuses on the engineering aspects of contaminant transport, erosion, stability, monitoring, and modeling. It identifies both established and innovative physico-chemical and biological tests and methods used to characterize and evaluate properties and behavior of contaminated sediments, as well as the potential for contaminant transfer. This data reflects recent work carried out on large coastal investigations and on natural and artificial capping of contaminated sediments. Twenty-three peer-reviewed papers cover: Sediment Characterization of contaminated sediments has become more and more complex. It involves ex situ techniques from standard tests (e.g., physical properties) to biological analysis in addition to all the chemical analyses, but also in situ ones like erodability tests. Mitigation and Restoration Methods are diversified and touch on many different environments from river sediments and harbor lagoons to land reclamation. They involve techniques ranging from the use of geotextiles and geocomposites to selective sequential extraction methods Monitoring and Performance aspects of contaminated sediments are largely supported by extensive site investigations, like the Southern California project, but also by the development of modeling tools. In addition, four peer-reviewed papers in this volume summarize a five-year research effort aimed at evaluating the performance of a catastrophic capping layer resulting from the major 1996 Saguenay flood disaster that proved to be very beneficial to the Saguenay Fjord environment and ecosystem by covering most of the ancient contaminated sediments. Audience: This book is an invaluable resource for environmental engineers and scientists, water quality engineers, soil scientists, geotechnical engineers, and environmentalists, educators, and legislators.
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The Use of Glass in Buildings: 1st Symposium on the Use of Glass in Buildings (ASTM STP 1434)
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The Use of Glass in Buildings: 1st Symposium on the Use of Glass in Buildings
Pittsburgh, Pennsylvania
(ASTM Special Technical Publication, 1434)
By ASTM International
Publisher: ASTM International
2002-01-01
173 Pages
ISBN: 0803134584
PDF 3.4 MB
The broad focus of this comprehensive, new publication is the quality, design, use, and performance of architectural glass. Sixteen peer-reviewed papers cover: Quality Issues--addresses the problems associated with the use of ASTM C1036 for field inspections of glass; the interrelationship between building codes and glass standards; on-line quality control measuring systems for tempered and heat-strengthened glass; and the impact of self-cleaning glass. Performance Assessments--presents developments around the performance of insulating glass and glass facades, including in-situ dew point testing to assess life span of insulating glass units; and an assessment of annual energy consumption of ventilated double glass facades using computer simulation. Glass Design--examines the structural performance of laminated glass made with stiff interlayers; design methodologies for glass, including rectangular window glass supported on three sides; large trapezoidal window glass lites; window glass design software based on ASTM E1300; and a new procedure for thermal stress evaluation of monolithic glass. Glass in Hurricanes--addresses special design considerations for glass used in hurricane-prone areas, including retrofitting commercial structures with laminated glass and testing of annealed glass with anchored-film glass retention systems. Glass for Fire Safety and Security--covers a broad spectrum of topics, including security glazing, fire rated glass and sprinklers, and a design procedure for blast resistant laminated glass. Audience: This publication is a valuable resource for architects; specifiers;laboratory personnel; consultants; and glass manufacturers, fabricators, and installers.
Table of Contents Overview ASTM C 1036: Does It Work for Field Inspections of Surface Blemishes?
Mazula T., Hennings I. Codes and Standards Affecting Glass in Buildings: The U.S. and Beyond
Block V. The Impact of Self-Cleaning Glass
Barry C., O'Day T. PC-Based Stress-Measuring System for On-Line Quality Control of Tempered and Heat-Strengthened Glass
Redner A. In-Situ Dew-point Measurement to Assess Life Span of Insulating Glass Units
Torok G., Lichtenberger W., Major A. Evaluation of the Condensation Resistance Rating as Determined Using the NFRC 500 Procedure
Wise D., Shah B. Structural Performance of Laminated Glass Made with a “Stiff” Interlayer
Bennison S., Smith C., Duser A., Jagota A. Development of Design Methodology for Rectangular Glass Supported on Three Sides to Resist Lateral Uniformly Distributed Loads
El-Shami M., Norville H. Wind Load Resistance of Large Trapezoidal Glass Lites
Norville H., El-Shami M., Jackson R., Johnson G. Window Glass Design Software
Morse S. A Thermal Stress Evaluation Procedure for Monolithic Annealed Glass
Beason W., Lingnell A. Retrofitting Commercial Structures with Laminated Glass to Withstand Hurricane Effects
Beers P., Pilcher M., Sciaudone J. Testing of Annealed Glass with Anchored-Film Glass Retention Systems for Fallout Protection After Thermal Stress Cracking
Kaskel B., Pearson J., Schmidt M., Pelletier R. The Advantages of Glazing in an Overall Security Strategy
Betten M., Beruhe H. The Relationship Between Sprinkler Systems and Glass
Razwick J. Design Procedure for Blast-Resistant Laminated Glass
Norville H., Conrath E.
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dubai city tower (also called ‘vertical city’) is an architect’s proposal that began circulating in emails and at a skyscraper forum published in august 25th, but its origins are yet to be determined.
the professional project pitch details 400 habitable stories, topped by a 400m energy-producing spire, making it 2.4km high. the tower is proposed to be sited along the Persian Gulf where part of the building could push into the ocean creating a marina and a destination for cruise ships and tourism. the proposed tower is organized into four 100 story "neighborhoods" connected via a vertical bullet train that quickly distributes people between sky plazas that separate the different vertical neighborhoods.
by comparison, emaar’s burj dubai is largely predicted to be around 800m high and 160 floors.
a “mile-high tower” in jeddah has been planned by kingdom holdings, while nakheel is building al burj, which, according to project sources, will have a final height of 1.28km, although the developer is keeping the details under wraps.
i would not be surprised to see this project under construction. only dubai would build such crazy project. it is worth mentioning that there are many amazing architectural projects under planning and construction in dubai.
our design for the dubai city tower is 400 habitable stories high topped by a 400m tall energy producing spire. each floor to floor height is 5m making the overall height of the building 2400m (1.5 miles).we are proposing that the tower be sited along the gulf sea where part of the building could push into the ocean creating a marina and destination for cruise ships and tourism. the overall mass of the tower is broken down into six independent buildings, three of rotating clockwise and three counter-clockwise about a central core. sixty-five percent of the total building floor area is located in the first 100 stories maximizing leasing potential while easing the strain of servicing a 400 story tower. a six story base sits at the foot of the tower housing a convention center, retail, event space and parking. two stories of the vip self parking exists above ground and fifteen stories of robotic parking are housed below ground. the overall tower is organized into four 100 story ”neighborhoods” connected via a vertical bullet train that quickly distribute people between sky plazas that separate the different vertical neighborhoods.
the sky plaza becomes a new town center at every 100 stories filled with the character of a city offering a diversity of experiences from shopping to leisure. functionally, zone acts to separate building and transportation systems into smaller more manageable unites more typical to the design constraints of today. here the vertical bullet train delivers passengers/tenants every 10 minutes. from this hub people then switch to more standard elevators to the distributed to their offices, hotel, or homes. vip helicopter pads are also located at each of the plaza levels allowing for quicker and more discreet access.
the lower levels of each sky plaza serve to separate the tower’s building system between neighborhoods. each 100 story block serves s an independent unit with separate plumbing, electric and waste system all linked through the central core. here chilled water created by thermal exchange and electricity created by strategically placed photovoltaic cells and turbines located in the spire are captured and delivered to occupants of the building. in addition, water purification and trash composing take place within this zone in a biosphere like gardens that becomes a vertical park for recreation, oxygen creation, and natural relief. every effort has been made to make each neighborhood as self reliant as possible. wind energy generated by turbines located in the spire combined with photovoltaic cells strategically laminated into the each building’s skin offset the tower’s draw from the local power grid. recycling efforts at each 100 story sky plaza and integrated desalination plants reduce the tower’s impact on the surrounding infrastructure ushering in a new era of smart building design sensitive to both the building’s occupants and tower’s local environment.
the dubai city tower pushes every edge of building design. for centuries man ha pushed construction towards the heavens. the sheer scale of the project will focus the world’s eye towards the city of dubai nut it will be the tower’s design and image that will preserve dubai city tower’s grandeur into the future.
all buildings must be designed for some combination of gravity(self weight and occupancy loads),the moving earth(seismic events),and the moving air(wind storms).for a building reaching 1.5 miles the lateral forces from the wind exceed both the occupancy loads imposed on the floors and the lateral loads from earthquakes. to resist the forces and deflections imposed by the wind, shapes such as that of the eiffel tower tend to be the most efficient. this shape is both effective in resisting the forces from the wind and, as well, in distributing, the forces imposed by the building on the underlying earth. the dubai city tower maximizes the eiffel tower shape while breaking up the overall mass into six separate building and a central vertical core. three of the building rotates clockwise while the other three rotate counter-clockwise. the individual buildings intersect and are tied back to the central core every 100 stories creating a stable structural web. internally each individual building is supported by corner super column and cross bracing angled to resist wind forces. on the lower floors where the distances are too great to span between the walls of the external structure, a secondary line of internal columns braces the floor slabs. structure within a building of this size is perhaps the most important component to a successful project. formally the dubai city tower celebrates its structure ingenuity allowing the building to soar seemingly effortlessly 1.5 miles into the sky.
the sky plaza is the town center within the vertical city. the tower is broken down into four 100 story neighborhoods that are linked through the central core ad bullet train. suspended between the rotating outer buildings each sky plaza serves to tie the tower together structurally, functionally, and more importantly socially.
the plaza is the main meeting space for businessmen or residents.
large tree lined green spaces offer a park atmosphere in the sky while shops and entertainment complexes provide every thing from leisure to necessary goods and services. the lower floors of the plaza act to service the above 100 stories. the vertical core feeds water and electricity upward while waste is transported downward.
the experience of the sky plaza is like that of a town square bustling with activity and social interaction. these intermediate zones tie the idea of a vertical city together both metaphorically and functionally.
dubai city tower is situated on the coast straddling the land and the sea. the project’s sitting links the tower with both dubai and the world.
the base of the tower rises six stories above ground and descends fifteen stories below ground occupying a circular foot print of one million square feet. the tower’s base houses a convention center, retail, event space and vip self parking. the fifteen stories below ground house self and robotic parking to handle the load of the 6 towers that rise 1.5 miles above. the size and proportion of the base fits within the legs of the tower relating more to the ground level pedestrian. rather than create a large street wall, the edge of the base pull back at each level drawing the eye upward into the void created by the rotating buildings of the tower. where the rotating building strands relate to the image of the tower at a distance, the base and physical connection to the sea grounds the project in the city of dubai.
planning dubai city tower creates opportunities and challenges usually associated with the master planning of a city rather than the programming of a tower. the sheer scale and population of the structure forces the design to look at both the functional requirement of the interior as well as the tower’s impact on both the immediate surrounding and ultimately the world. the tower id divided into four 100 story sections or neighborhoods linked via circulation and services by a central vertical core. sky plazas mark the ground floor of each neighborhood and act as green space and leisure areas for the 100 stories above. shops and markets fill the ground floor of the six twisting building rising above. the experience is like that of a town center bustling with activity and social interaction.
the floor plates of the tower are filled with a mix of office space, hotel space, and residential unites.65%of the tower’s floor area is located within the first 100 floors of the tower portion of the tower eases some of the burden on the transportation and building systems while maximizing the amount of prime leasable office space. vertically there is a mix of office, hotel, and residential space within each neighborhood. the percentage of each program changes vertically with a larger percentage of office space located closer to the ground and a larger percentage of residential located higher in the sky.
vertical mixing is coordinated with the internal elevator layout splitting the working populations from the residents and providing high speed vip express services to designated areas.
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Water-Resistant Design and Construction - Walker and Felice
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Capitalize on Proven Solutions to the 25 Most Common Water Problems in Buildings_and Avoid Costly Construction Claims!
The Illustrated Guide to Water Resistant Design and Construction provides state-of-the-art solutions to prevent the most common water-related problems in buildings.
Designed to save you time and money, this expert resource discusses the causes and effects of water-related problems…time tested solutions for keeping water damage from occurring…methods for enhancing construction quality to reduce claims…tips on selecting the right firm to perform waterproof design and construction…guidance on achieving effective maintenance and repair…and more. The Illustrated Guide to Waterproof Construction features:
* More than 150 illustrations showing how to improve details and create higher-quality buildings
* Waterproofing methods that comply with the International Building Code
* Numerous examples and case studies from the United States, China, and Canada
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The Metal Building Manufacturers Association published the Metal Roofing Systems Design Manual in 2000 - a one-of-a-kind design and detail manual for architects, manufacturers, engineers, specifiers, builders and others involved in the metal roofing industry. For over two years, a team of MBMA roofing systems members and association staff has worked to develop the manual. It includes: systems components, substrates, specifications and standards, retrofit, common industry practices, design, installation, energy and fire protection.
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