3D scan­ning an emerg­ing technology within the con­struc­tion in­dus­try

Australasian Timber - - SCANNING -

WHEN CAN we scan the Mary­bor­ough Fire Sta­tion? This was the un­usual re­quest that came into Mary­bor­ough’s Hyne Tim­ber from lead­ing re­search in­sti­tu­tion, The Univer­sity of Queens­land (UQ).

Per­mis­sion was granted and UQ used a num­ber of laser scan­ning tech­nolo­gies to map and pho­to­graph the ex­ist­ing build­ing and sur­rounds of the 1950’s Mary­bor­ough Fire Sta­tion.

The task was con­ducted as part of ini­tial work to de­velop a de­tailed pro­posal for Hyne Tim­ber’s Mar­ketLed Pro­posal (MLP) to de­sign and build a new fire sta­tion and emer­gency re­sponse cen­tre us­ing sus­tain­ably grown en­gi­neered tim­ber. Scan­ning technology has been suc­cess­fully used in com­plex ac­tiv­i­ties such as the preser­va­tion of world her­itage sites and ex­plor­ing the in­te­rior of the Lean­ing Tower of Pisa. Now, the Mary­bor­ough Fire Sta­tion can be added to the list ahead of a trip to In­dia later in the year where the School will be un­der­tak­ing scans of in­for­mal set­tle­ments in Ahmed­abad. UQ’s Cen­tre for Fu­ture Tim­ber Struc­tures spokesper­son, Dr Dilum Fer­nando said the scan­ners are key tools of the Dig­i­tal Cul­tural Her­itage ini­tia­tive run by Dr Kelly Greenop and her team at the UQ’s School of Ar­chi­tec­ture.

“The ro­tat­ing hand held scan­ner emits laser beams to con­tin­u­ously scan the Fire Sta­tion build­ing.

“As the op­er­a­tor walked through the build­ing with the scan­ner, 2D mea­sure­ments were con­verted into a 3D field of view, col­lect­ing over 40,000 range mea­sure­ments in just one sec­ond.

“We will now look to use the scan data to cre­ate a 3D model of the ex­ist­ing build­ing to bring more in­no­va­tive so­lu­tions through­out the de­sign and con­struc­tion process by a range of ex­perts, re­searchers and stu­dents.

“The scan­ner is per­fect for map­ping com­plex, non-or­thog­o­nal en­vi­ron­ments which are very dif­fi­cult to record us­ing con­ven­tional sur­vey equip­ment,” said Dr Fer­nando. The use of this scan­ning technology in Mary­bor­ough also pre­sented a unique learn­ing op­por­tu­nity for a num­ber of PhD stu­dents to learn how to use the equip­ment and for all in­volved to un­der­stand how it may ap­ply to ben­e­fit the de­sign and con­struc­tion in­dus­try into the fu­ture. “I’d like to take this op­por­tu­nity to thank the Fire and Res­cue per­son­nel who were on site to as­sist us with fa­cil­i­tat­ing the scan. With­out their co­op­er­a­tion and sup­port, this unique op­por­tu­nity wouldn’t have been pos­si­ble,” Dr Fer­nando said.

Project part­ner Hutchin­son Builders’ Team Leader, Rus­sell Fryer said 3D scan­ning is an emerg­ing technology within the con­struc­tion in­dus­try that will en­able de­sign­ers to more ac­cu­rately doc­u­ment in­ter­faces be­tween new and ex­ist­ing struc­tures. “UQ have re­quested this use of scan­ning technology to cre­ate a 3D model es­pe­cially where we may have the added com­plex­ity of work­ing with an ex­ist­ing brick façade. “Op­por­tu­ni­ties to com­bine this with the use of lighter weight tim­ber struc­tures to ex­tend ex­ist­ing build­ing heights in our cities is just one area we see as hav­ing po­ten­tial,” Mr Fryer said.

The project’s Ar­chi­tect, Kim

Baber also made the point that this technology goes hand-in-hand with de­vel­op­ments in so­phis­ti­cated pre­fab­ri­cated tim­ber pro­cess­ing tech­nolo­gies.

“En­tire tim­ber struc­tures are de­signed and pre­fab­ri­cated off site to within a tol­er­ance of 2mm.

“Such high lev­els of pre­ci­sion in both the scan­ning of the ex­ist­ing site con­di­tions com­bined with con­tem­po­rary pre­fab­ri­ca­tion of both the Glue Lam­i­nated Tim­ber (GLT) and Cross Lam­i­nated Tim­ber (CLT) new build­ing com­po­nents will sig­nif­i­cantly in­crease the re­li­a­bil­ity and the ef­fi­ciency of con­struc­tion,” Mr Baber said.

Hyne Tim­ber is cur­rently work­ing on a de­tailed pro­posal for gov­ern­ment con­sid­er­a­tion fol­low­ing an­nounce­ment of the project in June 2017. The com­pany has part­nered with other lead­ing com­pa­nies and or­gan­i­sa­tions in­clud­ing UQ, Hutchin­son Builders, XLam and Baber Stu­dio to scope re­quire­ments for the project and aim to sub­mit a De­tailed Pro­posal dur­ing 2018.

Hyne Tim­ber has been a re­search part­ner with The Univer­sity of Queens­land, Cen­tre for Fu­ture

Tim­ber Struc­tures for many years. The Cen­tre has of­fi­cially en­dorsed in­volve­ment in the Mar­ket Led Pro­posal, la­belling it an ‘ex­em­plar project’.

The pro­posed project also aligns with the Fraser Coast Re­gional Coun­cil’s pro­gres­sive Wood En­cour­age­ment Pol­icy, the first Coun­cil in

Queens­land to in­tro­duce such a pol­icy at the start of the year.

■ Mary­bor­ough Mem­ber Bruce Saun­ders, QFES Act­ing Su­per­in­ten­dent James Gill, Hyne Tim­ber Katie Fow­den and the UQ Scan­ning Team.

■ UQ School of Civil En­gi­neer­ing Lec­turer SangHyung Ahn and the Scan­ner at the top of the Mary­bor­ough Fire Tower.

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