Prestandard And Commentary For The Seismic Rehabilitation Of Buildings

The title of this document, FEMA 356 Prestandard and Commentary for the Seismic Rehabilitation of Buildings, incorporates a word that not all users may be familiar with. That word—prestandard—has a special meaning within the ASCE Standards Program in that it signifies the document has been accepted for use as the start of the formal standard development process, however, the document has yet to be fully processed as a voluntary consensus standard. The preparation of this prestandard was originally undertaken with two principal and complementary objectives. The first was to encourage the wider application of the NEHRP Guidelines for the Seismic Rehabilitation of Buildings, FEMA 273, by converting it into mandatory language. Design professionals and building officials thus would have at their disposal a more specific reference document for making buildings more resistant to earthquakes. This volume fully meets this first objective. The second objective was to provide a basis for a nationally recognized, ANSI-approved standard that would further help in disseminating and incorporating the approaches and technology of the prestandard into the mainstream of design and construction practices in the United States. How successfully this volume achieves the second objective will become apparent with the passage of time, as this prestandard goes through the balloting process of the American Society of Civil Engineers. Several additional related efforts were ongoing during the development of this prestandard. A concerted effort was made to gather any new information produced by these endeavors. Topics varied considerably, but typically covered approaches, methodologies, and criteria. Whenever an analysis of the new information disclosed significant advances or improvements in the state-of-the-practice, they were included in this volume. Thus, maintaining FEMA 273 as a living document—a process to which FEMA is strongly committed—is continuing.

This document from the National Earthquake Hazards Reduction Program (NEHRP) was prepared for the Building Seismic Safety Council (BSSC) with funding from the Federal Emergency Management Agency (FEMA). It provides commentary on the NEHRP Guidelines for the Seismic Rehabilitation of Buildings. It contains systematic guidance enabling design professionals to formulate effective & reliable rehabilitation approaches that will limit the expected earthquake damage to a specified range for a specified level of ground shaking. This kind of guidance applicable to all types of existing buildings & in all parts of the country has never existed before. Illustrated.

FL's coastal resources are invaluable to the state's character & economic vitality. Understanding the complexities of resource use is difficult, but crucial to developing strategies to protect & enhance FL's precious coastal resources. This document will be useful to all agencies & org. involved with managing FL's coastal resources. It will also be used as part of the FL Coastal Mgmt. Program's strategic planning & budgeting processes to ensure the effectiveness of its programs & activities. Chapters: biodiversity & natural areas; coastal access; coastal hazards; community stewardship; marine & estuarine health; waterfront revitalization; & FL Coastal Issues Survey. Charts & tables.

Standard ASCE/SEI 41-06 presents the latest generation of performance-based seismic rehabilitation methodology.

Seismic Rehabilitation of Existing Buildings presents the latest generation of performance-based seismic rehabilitation methodology. This new national consensus standard was developed from the FEMA 356, Prestandard and Commentary for the Seismic Rehabilitation of Buildings. This Standard represents state-of-the-art knowledge in earthquake engineering and is a valuable tool for the structural engineering profession to improve building performance in future earthquakes. It includes significant improvements in current understanding of building behavior in earthquakes, such as: improved C-coefficients for calculation of the pseudo-lateral force and target displacement based on recommendations in FEMA 440; comprehensive soil-structure interaction provisions, including kinematic effects and foundation damping effects; revised acceptance criteria for steel moment frames to reflect final conclusions of the SAC Joint Venture research; expanded acceptance criteria for concentrically braced frames defined as a function of brace slenderness, compactness, and level of connection detailing; and updated nonstructural provisions to be consistent with current NEHRP Provisions for new buildings. ASCE/SEI Standard 41-06 is a valuable tool for structural engineers and the public for improving seismic performance of existing buildings.