We experience elasticity everywhere in daily life: in the straightening or curling of hairs, the irreversible deformations of car bodies after a crash, or the bouncing of elastic balls in ping-pong or soccer. The theory of elasticity is essential to the recent developments of applied and fundamental science, such as the bio-mechanics of DNA filaments and other macro-molecules, and the animation of virtual characters in computer graphics and materials science. In this book, the emphasis is on the elasticity of thin bodies (plates, shells, rods) in connection with geometry. It covers such topics as the mechanics of hairs (curled and straight), the buckling instabilities of stressed plates, including folds and conical points appearing at larger stresses, the geometric rigidity of elastic shells, and the delamination of thin compressed films. It applies general methods of classical analysis, including advanced nonlinear aspects (bifurcation theory, boundary layer analysis), to derive detailed, fully explicit solutions to specific problems. These theoretical concepts are discussed in connection with experiments. The book is self-contained. Mathematical prerequisites are vector analysis and differential equations. The book can serve as a concrete introduction to nonlinear methods in analysis.
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In this fully updated guide, master plumber and long-time contractor R. Dodge Woodson explains, step by step, how to install, test, and debug in-floor heating systems--the healthy, quiet, economical, and clean heating method.
Radiant Floor Heating, Second Edition now offers details on alternative fuel sources and covers new material options and installation procedures, updated code information, and state-of-the-art piping and heating equipment. Revised illustrations featuring modern products are included in this practical resource. Get everything you need to:
1. Understand and explain the advantages of in-floor radiant heating
2. Select superior equipment--tubing, boilers, expansion tanks, pumps, and controls
3. Install embedded and dry radiant heat systems in new or existing homes
4. Incorporate hot water heating into your designs
5. Set up heating zones for variable temperatures throughout a house
6. Design a solar-powered system
7. Use alternative fuel sources
8. Provide outdoor ice removal and other amenities
9. Troubleshoot and repair system problems
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AutoCAD® Civil 3D® civil engineeering design software is a civil design and documentation solution that supports Building Information Modeling (BIM) workflows. Using AutoCAD Civil 3D, infrastructure professionals can better understand project performance, maintain more consistent data and processes, and respond faster to change.
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AutoCAD® Map 3D software provides access to GIS and mapping data to support planning, design, and data management. Intelligent models and CAD tools help you to apply regional and discipline-specific standards. Integration of GIS data with your organization helps to improve quality, productivity, and asset management.
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FIB 30: Acceptance of stay cable systems using prestressing steels
Size: 3 MB | Format:PDF | Quality:Unspecified | Publisher: FIB - The International Federation for Structural Concrete (fédération internationale du béton) | Year: 2005 | Pages: 86 | ISBN: 9782883940703
This fib Recommendation gives technical guidelines regarding design, testing, acceptance, installation, qualification, inspection and maintenance of stay cable systems using prestressing steels (strands, wires or bars) as tensile elements, which can be applied internationally. This Recommendation is applicable for cable-stayed bridges and other suspended structures such as roofs. It may also be used for hangers in arch structures and as suspension cables, as appropriate.
This Recommendations has been formulated by an international working group comprising more than 20 experts from administrative authorities, universities, laboratories, owners, structural designers, suppliers of prestressing steels and stay cable suppliers. The text has been written to cover best construction practices around the world, and to provide material specifications that are considered to be the most advanced available at the time of preparing this text. For ease of use (for client, designer and cable supplier), the complex content has been arranged thematically according to the system components into chapters focusing on performance characteristics, requirements and acceptance criteria.
Requirements and comments have been specified for all parties involved in design and construction in order to aim for a uniform and high quality and durability. The interfaces to the structural designer are highlighted. The essential subjects are:
Design and detailing of stay cables including saddles and damping devices
Durability requirements and corrosion protection systems
Requirements for the materials
Testing requirements for the stay cables
Installation, tolerances, qualification of companies and personnel
Inspection, maintenance and repair.
This Recommendation does not cover the technology of stay cables whose tensile elements are ropes, locked-coil cables, etc. or which consist of composite materials. Nevertheless, in many cases the specified performance criteria may also be applicable to these systems, although numerical values given for the acceptance criteria may need to be adjusted. For these systems it has been difficult to provide multiple protective layers similar to those specified for stay cables made from prestressing steel and therefore, the quality of corrosion protection may not be equivalent. While extradosed cables have similarities with stay cables, generally agreed design and system acceptance criteria are not yet available and therefore, this type of cable is not covered.
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Size: 5 MB | Format:PDF | Quality:Unspecified | Publisher: FIB - The International Federation for Structural Concrete (fédération internationale du béton) | Year: 2004 | Pages: 81 | ISBN: 9782883940680
The construction industry, including the concrete industry, faces the transformation process from the traditional building process to the new approach, "sustainable construction". Environmental aspects represent a key role in this process. The principal importance of the environmental impact evaluation of concrete structures follows from the high amount of concrete structures built around the world every year.
The specific amount of harmful impacts embodied in concrete unit is, in comparison with other building materials, relatively small. However, due to the high production of concrete, the final negative environmental impact of concrete structures is significant. Any improvement of concrete design principles, methodologies of assessment, construction and demolition technologies, and management of operation and use of concrete structures thus provides a very significant contribution to the general goal: the achievement of a development process in the sustainable way.
The objective of this state-of-art report is provide the framework of so-called environmental design, to document "Best Available Technology" (BAT) for concrete structures from an environmental point of view and to summarize methodologies for environmental impact evaluation and optimization of concrete structures. Although the authors of the report were from Europe and Japan, it was attempted to collect information as widely as possible.
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Both architectural students and civil engineering students need an intrinsic grasp of structures, but existing texts on structural theory are too mathematical for architectural students and many civil engineering students would benefit from an introduction to basic principles.
This book provides a highly visual approach to explain structural concepts to these two audiences.
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FIB 27: Seismic design of precast concrete building structures
Size: 14 MB | Format:PDF | Quality:Unspecified | Publisher: FIB - The International Federation for Structural Concrete (fédération internationale du béton) | Year: 2003 | Pages: 263 | ISBN: 9782883940673
The aim of this state-of-art report is to present current practices for use of precast and prestressed concrete in countries in seismic regions, to recommend good practice, and to discuss current developments. The report has been drafted by 30 contributors from nine different countries.
This state-of-art report covers: state of the practice in various countries; advantages and disadvantages of incorporating precast reinforced and prestressed concrete in construction; lessons learned from previous earthquakes; construction concepts; design approaches; primary lateral load resisting systems (precast and prestressed concrete frame systems and structural walls including dual systems) diaphragms of precast and prestressed concrete floor units; modelling and analytical methods; gravity load resisting systems; foundations; and miscellaneous elements (shells, folded plates, stairs and architectural cladding panels). Design equations are reported where necessary, but the emphasis is on principles. Ordinary cast-in-place reinforced concrete is not considered in this report.
This fib state-of-the-art report is intended to assist designers and constructors to provide safe and economical applications of structural precast concrete and at the same time to allow innovation in design and construction to continue.
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