civil and structural engineering applied science founded washington dc 1949 as paul weidlinger consulting engineer headquarters new york new york key people dr. raymond daddazio president and chief executive officer number of employees 300 2010 website www.wai.com weidlinger associates inc. is a u.s. based structural engineering firm that designs and rehabilitates buildings bridges and infrastructure and provides special services in applied science forensics and physical security . weidlinger s clients include corporations private clients institutions and federal state and local governments . the firm is headquartered in new york city with branch offices in massachusetts connecticut new jersey california new mexico and washington dc . the firm also conducts business as weidlinger associates ltd. in scotland uk . 1 contents 1 history 1.1 merger with thornton tomasetti 2 operations 2.1 transportation 2.2 buildings 2.3 applied science 3 awards and recognition 4 notable projects 4.1 in progress 4.2 completed 5 references 6 external links history edit weidlinger associates was founded by paul weidlinger a graduate of the swiss polytechnic institute in zurich 2 as paul weidlinger consulting engineer in washington dc in 1949 . the company moved its headquarters to manhattan in 1951 ; was renamed weidlinger associates consulting engineers in 1974 ; and was incorporated as weidlinger associates inc. in cambridge massachusetts in 1982 . dr. jeremy isenberg succeeded paul weidlinger as president and ceo in 1993 and dr. raymond daddazio succeeded dr. isenberg on january 1 2006 . 3 in 2011 the firm became a general business corporation under the laws of new york state . the firm currently employs approximately 300 people . merger with thornton tomasetti edit on september 8th 2015 it was announced that weidlinger associates had merged with structural engineering firm thornton tomasetti . 4 operations edit the firm has three business units transportation buildings and applied science & investigations which encompasses investigations security and the flex family of software products including pzflex for virtual prototyping . transportation edit much of weidlinger s experience in transportation and bridge engineering reflects the rehabilitations the company has designed in the new york metro area for the brooklyn manhattan rfk triborough bronx whitestone and tappan zee bridges . the firm s work on these historic structures has broadened weidlinger s expertise in correcting original defects and preventing future fatigue . weidlinger has also worked on other major bridges including the walt whitman bridge benjamin franklin bridge cooper river bridges richmond san rafael bridge iowa dot i 74 bridges red river bridge and victory bridge new jersey . the company also designed the steel deck sections of the self anchored suspension span of the san francisco oakland bay bridge . in 2004 ronald mayrbaurl and sante camo two weidlinger principals published the first ever guidelines for the inspection and evaluation of suspension bridge cables . 5 buildings edit weidlinger s buildings practice specializes in the design of structural systems for courthouses embassies laboratories museums office headquarters stadiums and other buildings in the u.s. and abroad . 6 a pioneer in high rise long span cable and fabric structures 7 8 9 10 the firm is known for producing quality structural designs that offer economical protection against the consequences of earthquakes hurricanes and explosions . 11 weidlinger uses advanced analysis to optimize structural systems resolve interdisciplinary conflicts and guard the safety and comfort of users . applied science edit the company s work in applied science research and advanced analysis has resulted in investigative projects concerning the safety of tall buildings 12 infrastructure and military installations as well as mathematical models to explore shielding naval vessels against mine explosions and protecting loading docks against blast . weidlinger s software is used by military public administrative and corporate clients to simulate structures and devices enhance design and assess vulnerability . some programs combine the effects of several load types . 13 others use imaging techniques to improve the manufacture of integrated circuits predict the location of underground petroleum reservoirs and streamline the design of ultrasonic probes for medical use . 14 awards and recognition edit founder paul weidlinger 15 and five weidlinger principals melvin baron matthys levy herbert rothman mario salvadori and jeremy isenberg have been elected as members of the national academy of engineering . in 1987 the franklin institute awarded paul weidlinger the frank p. brown medal . in 2004 weidlinger associates was awarded the american council of engineering companies grand conceptor award for its comprehensive study of the world trade center tower collapses . 16 more than 150 weidlinger projects have received awards for engineering excellence technical innovation and creative design . 17 the firm has also been awarded numerous u.s. small business innovation research grants and small business technology transfer grants by the u.s. small business administration s office of technology including a tibbetts award for advancing technological innovation with pzflex software . 18 notable projects edit in progress edit san francisco oakland bay bridge california united nations headquarters new york new york world trade center site new york new york completed edit beinecke rare book and manuscript library new haven connecticut benjamin franklin bridge philadelphia pennsylvania re decking cable investigation and cable strengthening study brooklyn botanic garden visitors center new york new york brooklyn bridge new york new york current and ongoing rehabilitations cbs building new york new york embassy of the united states berlin germany estadio ciudad de la plata la plata argentina franklin d. roosevelt presidential library and museum henry a. wallace visitor and education center hyde park ny georgia dome atlanta georgia georgia pacific tower atlanta georgia jacob k. javits convention center new york new york jeju world cup stadium seogwipo si jeju republic of korea john hancock tower boston massachusetts investigation manhattan bridge new york new york current and ongoing rehabilitations museum of fine arts boston art of the americas wing boston massachusetts national museum of the marine corps quantico virginia national aquarium in baltimore maryland new england aquarium giant ocean tank boston massachusetts new york marriott marquis new york new york one lincoln street boston massachusetts robert h. jackson united states courthouse buffalo ny rose center for earth and space new york new york september 11 museum new york ny solow building new york new york postcards staten island new york the lawn university of virginia south lawn tomorrow square shanghai china 33 arch street boston massachusetts wat nawamintararachutis thai temple and meditation center raynham massachusetts references edit http www . wai.com offices.aspx asce news moisseiff award civil engineering asce oct. 1975 98 . http www.wai.com history.aspx https www.thorntontomasetti.com weidlinger associates thornton tomasetti merger ronald mayrbaurl and santo camo guidelines for inspection and strength evaluation of suspension bridge parallel wire cables washington dc transportation research board national research council 2004 . http www.wai.com projects.aspx type 100 matthys levy floating fabric over georgia dome civil engineering nov. 1991 34 37 . matthys levy double domed civil engineering apr. 2000 a2 a4 . matthys levy the innovation of lightness bulletin of the international association for shell and spatial structures vol . 35 number 2 1994 77 84 . matthys levy new approaches to long span structures architecture mar. 1987 90 91 . http www.wai.com pressrelease.aspx id 104 najib abboud matthys levy darren tennant john mould howard levine stephanie king chukwuma ekwueme anurag jain and gary hart anatomy of a disaster a structural investigation of the world trade center collapses proceedings of asce 3rd forensic congress san diego october 19 21 2003 . can c. simsir anurag jain alexis p. dumortier and gary c. hart design performance of a mid rise reinforced masonry building subjected to unanticipated loads proceedings of the masonry society tenth north american masonry conference st. louis june 2007 . http www.pzflex.com applications.aspx matthys levy paul weidlinger national academy of engineering of the united states of america memorial tributes vol . 12 washington dc national academies press 2008 329 331 . http www.acec.org publications newsreleases pr032104.pdf http www.wai.com awards.aspx http www.wai.com pressrelease.aspx id 87 external links edit official site retrieved from https en.wikipedia.org w index.php title weidlinger associates & oldid 722976059 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