Structural engineers in earthquake zones, long struggling to push the needle forward on seismic design of tall buildings, are celebrating the availability of a new design methodology. They are hailing the tool, in the form of an 84-page guide for performance-based seismic design of high-rises, as a great step forward in developing better-performing buildings that are more economical and constructible. In addition, engineers expect the guide to take some of the agita Photo: Mark Defeo Guide will ease approvals, which were difficult and lengthy for One Rincon Hill (right) and two Infinity towers (left). Guidelines for Performance-Based Seismic Design of
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.