"Earthquake Prone Structures"
Posted: Wednesday, December 30, 2009
by Paul Peshkov
Peshkov Builders
When considering building your structure, whether it is a house or a multi-story office building, an owner, architect, engineer, and contractor should consider the "earthquake prone structures". The reason for this is: knowing the weak buildings ("earthquake prone structures") and their materials will help to make wise decision to build that future project in mind. Let us know look in to the "right way" of building...
Apart from what we have in our structures today, a research was done by structural engineer Englekirk Partners of Los Angeles, analyzing this study, by the name of C4 (for the state's Carpenter/Contractor Cooperation Committee), the reinforced moment frames designed rigid at beam-column connections and flexible in beam or column mid-span, Englekirk developed structural core of moment-resisting columns and beams that can withstand seismic forces. For general information, the mid-spands act as hinges within the steel reinforcement, allowing a structural frame core to move a little during an earthquake. "It has no conventional core," said Lawrence Ho, an Englekirk principal. "It's a moment frame pulled to the core of the structure, which is not a very traditional design. But once we compared it to shear wall and dual-moment framed/shear wall systems, we found it was the most effective approach." Using such pseudo-core system reduces size perimeter of structural columns.
Precast Shear Walls in Seismic Zones
A new way for designing precast concrete shear wall in high seismic zones has been introduced in the 2003 edition of "Recommended Provisions for Seismic Regulations for New Buildings and Other Structures" produced by the National Earthquake Hazards Reduction Program (NEHRP). The system features a no emulative design of precast, prestressed shear walls that have distinct advantages during an earthquake. This new system is built on previous knowledge of shear walls capability of withstanding seismic activities by what's called "tuning", jointed walls to lengthen the structural period and reduce the design base shear forces. Vertical unbounded post-tensioning to resist overturning in the wall system is used instead of limiting lateral loads. For panel to panel connections, the elastic capacity of the post-tensioning system works quite well in such events...
"Earthquake prone structures" was part of the research that the owner, who is considering building-especially in high seismic zones, must consider before choosing structural methods and materials...
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"Earthquake Prone Structures"
Paul Peshkov is a general contractor/business developer. As a favorite hobby, Mr. Peshkov is extensively involved in studying alternative medicine. He enjoys helping people reach their full potential in life. For more info on his latest developments visit his website, http://www.PaulPeshkov.com
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