World-first struc­tural mon­i­tor­ing tech­nol­ogy ar­rives

DEMM Engineering & Manufacturing - - PRODUCT WATCH - en­quiry #161207

Ground engi­neer­ing and as­set preser­va­tion spe­cial­ist Main­mark has launched STRAAM, a world-first struc­tural anal­y­sis tech­nol­ogy de­vel­oped in the USA, in New Zealand. STRAAM is the most ef­fec­tive way to pin­point struc­tural dam­age and sta­bil­ity is­sues in re­al­time to mit­i­gate risk and en­hance safety, prom­ises the maker.

De­vel­oped by global pi­o­neer in dy­namic struc­tural mon­i­tor­ing, Dr Alan Jeary, STRAAM (Struc­tural Risk As­sess­ment and Man­age­ment) mea­sures the unique dy­namic sig­na­ture, or ‘ heart­beat’, of any above- ground struc­ture.

It works by us­ing non- de­struc­tive ground mon­i­tors to con­duct a Struc­tural- Car­dio­graph (SCG) to mea­sure the vi­bra­tions that oc­cur in re­sponse to en­vi­ron­men­tal fac­tors. This es­tab­lishes the build­ing’s dy­namic sig­na­ture and pro­vides real-time re­ports that ac­cu­rately as­sess the stiff­ness of a struc­ture and changes in its ca­pac­ity due to sub­si­dence, age­ing, earth­quake dam­age or other ac­tiv­ity.

Tim Pope, Chief Op­er­at­ing Of­fi­cer at Main­mark said that real-time struc­tural anal­y­sis can in­di­cate causes of struc­tural dam­age, likely risk of fur­ther dam­age and over­all struc­tural sta­bil­ity. “This pro­vides cru­cial in­for­ma­tion for the construction, prop­erty, pub­lic in­fra­struc­ture and in­surance in­dus­tries. The data can be used to pre­pare in­surance poli­cies and claims, en­hance oc­cu­pant safety, nav­i­gate lit­i­ga­tion, im­prove as­set man­age­ment and help to make com­mu­ni­ties and build­ings more re­silient to nat­u­ral disasters.”

STRAAM tech­nol­ogy uses full- scale, non- de­struc­tive test­ing and re­port­ing to mea­sure struc­tural in­tegrity for a range of ap­pli­ca­tions and cir­cum­stances. For ex­am­ple, it pro­vides: • The construction in­dus­try with an as­sess­ment of di­lap­i­da­tion risk for ad­join­ing prop­er­ties. • En­gi­neers and ar­chi­tects with an

an­a­lyt­i­cally ac­cu­rate start­ing point

for engi­neer­ing de­sign. • Build­ing own­ers and com­mer­cial prop­erty in­vestors with ev­i­dence that an as­set is struc­turally healthy and fit for use. • In­sur­ers with an un­der­stand­ing of in­her­ent risks of in­sured as­sets. • Build­ing com­mis­sion­ers with ev­i­dence of whether a struc­ture has been built to code and per­for­mance spec­i­fi­ca­tions. • Dam and bridge as­set own­ers with con­fi­dence in the struc­tures’ on­go­ing in­tegrity and use­ful­ness. • Lo­cal coun­cils with in­for­ma­tion and in­sights to man­age as­sets more strate­gi­cally for bet­ter re­turn on in­vest­ment. • Fa­cil­ity man­agers with build­ing in­for­ma­tion to make smarter de­ci­sions, faster, af­ter struc­tural events or nat­u­ral disasters. The tech­nol­ogy is ex­tremely ac­cu­rate and fast, says the com­pany. Rapid baseline mea­sure­ments can be pro­duced in a mat­ter of hours and com­pre­hen­sive re­ports, fea­tur­ing three- di­men­sional mod­el­ling, can be ac­cessed on­line. The sys­tem can be used to take a one- off read­ing or re­main con­nected to the build­ing to mon­i­tor move­ment over a pe­riod of time (dur­ing construction or in a seis­mic en­vi­ron­ment, for ex­am­ple).

Main­mark is the ex­clu­sive dis­trib­u­tor for STRAAM tech­nolo­gies in New Zealand.

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