Gustavo J. Parra-Montesinos is coming to the rescue of concrete-frame designers and contractors in earthquake country, long bedeviled by rebar-congested coupling beams that span openings in seismic ...

A recent series of dynamic tests demonstrates that there are several types and doses of steel-fiber reinforcement that can be used in performance-based seismic design of coupling beams—headers that ...

Alex Lo, in his column of June 8, writes: “MTR management … doesn't know who was responsible” for the failed rebar-coupling operation when building a platform under Hung Hom station, noting possible ...