ASCE 41-17 PDF Download

The ASCE 41-17 standard provides guidelines for evaluating and retrofitting existing buildings to withstand the impact of earthquakes. It is produced by the Seismic Retrofit of Existing Buildings Standards Committee of ASCE. The standard introduces deficiency-based and systematic procedures, which utilize performance-based principles to assess the structural integrity and nonstructural components of buildings in relation to seismic hazards.

The standard employs a three-tiered process that aligns targeted structural performance and nonstructural component performance with seismic hazard levels. The deficiency-based procedures allow for a focused evaluation and retrofitting process, targeting specific potential deficiencies based on building types and heights. On the other hand, the systematic procedure offers a comprehensive methodology for evaluating entire buildings.

ASCE 41-17 covers a wide range of topics, including analysis procedures, acceptance criteria, foundation design, geologic site hazards, and requirements for various building components made of steel, concrete, masonry, wood, and cold-formed steel. It also addresses architectural, mechanical, and electrical components and systems, as well as seismic isolation and energy dissipation systems. The standard provides checklists for different building types and seismicity levels, which aid in the Tier 1 screening process.

This edition of ASCE 41-17 introduces updates and revisions to previous versions, particularly in the areas of performance objectives for existing buildings, evaluation of force-controlled actions, nonlinear dynamic procedures, steel and concrete columns, and unreinforced masonry. The standard is an important reference for structural engineers involved in improving the seismic resilience of existing buildings, as well as for building code officials, architects, construction managers, academic researchers, and building owners.