Height limitations are often imposed on multistory buildings based on zoning regulations, economic requirements and esthetic considerations, including the need to match the floor heights of existing buildings. The ability to meet these restrictions is an important consideration in the selection of a framing system and is especially important when the framing system is structural steel. Web openings can be used to pass utilities through beams and, thus, help minimize story height. A decrease in building height reduces both the exterior surface and the interior volume of a building, which lowers operational and maintenance costs, as well as construction costs. On the negative side, web openings can significantly reduce the shear and bending capacity of steel or composite beams.
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Categories: Engineering Code
January 27, 2009 · 1 Comment
Column base plate connections are the critical interface between the steel structure and the foundation. These connections are used in buildings to support gravity loads and function as part of lateral-load-resisting systems. In addition, they are used for mounting of equipment and in outdoor support structures, where they may be affected by vibration and fatigue due to wind loads.
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Categories: Engineering Code
This book contains lecture notes, albeit not covering all materials, delivered at the course on Advanced Earthquake Engineering Analysis that took place at CISM Udine in July 3-7, 2005.
During the last decade, the state of the Art in Earthquake Engineering Design has made significant steps towards a more rationale analysis of structures. Scientists have long recognized that earthquake design is guided by displacements and deformations rather than forces. However due to the historical background of structural engineers in static analyses, effects of earthquake on structures have been viewed as forces acting on the structures. All presently available design building codes are developed along these lines.
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Categories: Engineering Book
