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New York, NY, United States

Thornton Tomasetti is an American 800+ person structural engineering consulting firm headquartered in New York City. Founded in 1956 as Lev Zetlin & Associates, the 50-year old company has office locations throughout the world.The company has expertise in structural engineering, façade engineering, forensics, renewal, construction engineering, property loss consulting and sustainability. The engineering firm provided the structural design for several of the world's tallest building structures, including the Petronas Towers in Kuala Lumpur, Malaysia; and Taipei 101 in Taiwan. Other structures designed by the firm include Soldier Field in Chicago, PETCO Park in San Diego, and the Minneapolis Public Library in Minneapolis. Among other architects of note, Thornton Tomasetti has collaborated with Cesar Pelli, Santiago Calatrava, Renzo Piano, and Rafael Vinoly.Thornton Tomasetti works to advance sustainable design and construction practices. About one-fifth of its staff are LEED accredited professionals . Thornton Tomasetti was the first structural engineering company to sign the AIA 2030 Commitment. Wikipedia.

Sherafati A.,Design Engineering Inc. | Farimani R.,Thornton Tomasetti | Azizinamini A.,Florida International University
Journal of Bridge Engineering | Year: 2013

To evaluate the contribution of the concrete slab to the shear resistance of composite concrete-steel plate girders, two tests were carried out on one full-scale composite plate girder. The tested specimen was loaded to failure under shear load and positive moment. Vertical deflection of the girder and out-of-plane deflection of the web panels were monitored during each test. Principal strains and their inclination were obtained by instrumentation on the web, flanges, stiffeners, and concrete slab. The observed failure mechanism of the tested specimen is presented using the test results. Nonlinear finite-element analysis of the tested specimen was carried out and calibrated using the tests results. To study a wider range of composite girders, further finite-element models were built with different concrete slab and steel web thicknesses. The experimental and analytical results indicate that the ultimate capacity of the tested composite specimen is higher than what is predicted by the current AASHTO design specifications for a bare steel plate girder. © 2013 American Society of Civil Engineers. Source

Nall D.H.,Thornton Tomasetti
ASHRAE Journal | Year: 2014

For laboratories, the greatest energy challenge is meeting ventilation airflow requirements while maintaining a comfortable and functional interior environment. When exhaust-driven ventilation requirements exceed the airflow required for sensible cooling, and supply temperature reset for the air supply is limited by humidity control or the presence of load-driven labs on the same air system, reheat is often seen as the only alternative. Reheat energy and the wasted energy of the offset sensible cooling are major opportunities for energy savings in these buildings. © Copyright 2014 ASHRAE. Source

Abruzzo J.,Thornton Tomasetti
Forensic Engineering 2015: Performance of the Built Environment - Proceedings of the 7th Congress on Forensic Engineering | Year: 2015

Computer solutions to model disproportionate collapse require consideration of dynamics, large deformation, and yield. This presentation provides fundamental first principles approaches to solving these problems using some mechanics and spreadsheets. © 2016 ASCE. Source

Ganesan K.,Thornton Tomasetti | Moen C.D.,Virginia Polytechnic Institute and State University
Journal of Constructional Steel Research | Year: 2012

This manuscript summarizes recent work to determine if the LRFD resistance factor for cold-formed steel compression members can be increased above its current value of 0.85. An experimental database of 675 concentrically loaded columns with plain and lipped C-sections, plain and lipped Z-sections, hat sections and angle sections, including members with holes, was compiled. The predicted strength of each specimen was calculated with the American Iron and Steel Institute's Main Specification and the Direct Strength Method, with the Direct Strength Method making more accurate strength predictions, especially for columns with partially effective cross sections. The LRFD resistance factor, calculated with a first order second moment reliability approach, was consistent with that currently specified in the code for both the Main Specification and the Direct Strength Method. Capacity predictions of columns failing by the distortional buckling limit state were more accurate than columns failing by global buckling or local-global buckling interaction. The test-to-predicted strength ratios for single angle columns were highly variable, with capacity predictions becoming excessively conservative with increasing global slenderness. © 2011 Elsevier Ltd. All rights reserved. Source

Worldwide structural engineering research and associated technology transfer for tall and special building design are now rapid and potentially rewarding to building owners because with structural reliability as a foundation, uncertainty reduction in the design equations for the limit states defining building performance goals. Copyright © 2016 John Wiley & Sons, Ltd. Source

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