ResumenEste artículo analiza cuáles han sido los principales obstáculos para el crecimiento económico de México durante los últimos veinticinco años, con particular énfasis en el periodo posterior a la entrada en vigor del Tratado de Libre Comercio de América del Norte (tlcan). Si bien la polí-tica económica mexicana desde 1982 se ha guiado por una serie de suposiciones y disposiciones conocidas como el Consenso de Washington, estas políticas en lugar de estimular un mayor dinamismo de la economía mexicana han acentuado sus problemas estructurales y reducido el potencial de crecimiento del país. También se analiza cómo las políticas fiscal, monetaria, cambiaria y de libre comercio han obstaculizado el crecimiento económico. AbstractThis article analyzes the main obstacles to economic growth in Mexico during the past twenty five years, with a focus on the period after the passage of the North American Free Trade Agreement (nafta). Although Mexican economic policy since 1982 has been guided by a set of assumptions and prescription known as the Washington Consensus, these economic policies rather than spurring faster economic growth have accentuated the structural problems of the Mexican economy and have reduced Mexico's growth potential. The article also analyzes how fiscal, monetary, exchange rate and free trade policies have hampered economic growth.Palabras claves: liberalización comercial y financiera, cambio del patrón de especialización, bajo crecimiento económico.

<p> For the construction of the third set of lock complexes of the Panama Canal, a total number of 16 rolling gates were required in order to regulate water levels between chambers. Given that actions on gates differ between Atlantic and Pacific site, three different gate types were designed for each complex, resulting gate weights between 2060t and 3770t of structural steel.</p><p> Lock gates are constituted by an external skin plates at upstream and downstream, horizontal skin plate stiffeners, vertical column beams, horizontal and diagonal bracings, a buoyancy chamber in their lower part, which move during operation on an upper and lower wagon.</p><p> Governing analyses for structural lock gate design are fatigue, dry outage and seismic analysis.</p>

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