【Safety Walk with Thomas】Digitalisation to Rejuvenate Kwun Tong│【安全誠行】數碼化貫通建築物生命周期 觀塘地標展新貌
Digitalisation to Rejuvenate Kwun Tong
Kowloon East is transforming into a new CBD to unveil a new page of development. Ir Thomas HO, Chairman of the Construction Industry Council, has previously visited the “KTIL 240” project located in How Ming Street, Kwun Tong, where it is redeveloping on the site that was once home to the KMB bus depot. The project team has invested enormous resources on Building Information Modelling (BIM), working as a team by integrating advice from building and facility management teams as early as in the design stage. In face of different construction obstacles, digitalisation and smart design are fully utilised to foster efficiency and sustainability.
The Power of Collaboration
Redeveloped by Sun Hung Kai Properties, “KTIL 240” features a two-tower office building and a retail podium with a total GFA of 1.15 million square feet. As the site is situated in the busy downtown, digitalisation, especially BIM, is very much needed to facilitate the construction processes. According to Andy Mok, Senior Project Manager at SHKP, their in-house BIM team consists of around 40 engineers, who work closely with other teams throughout the process. Mok says that though BIM has been introduced for years, nevertheless, due to computers’ hardware constraints, BIM could only be applied to clash tests back then. Things have changed in recent years and the application of BIM doesn’t only confine to the construction stage, but throughout the whole asset life cycle. The needs of facility maintenance and repair are taken into considerations from the very beginning, “Our FM team has been contributing from the model design stage, and the design can thus modify the models in response to their needs. It would be hard to adjust at the later stage.” Mok says.
Despite the fact that the construction industry is often being stereotyped as an aging business with heavy manual labour, “KTIL 240” has rejuvenated the industry as the young team embraces digitalisation to boost efficiency, as Mok says "In order to minimise error during construction, teammates onsite will create a digital model and digital twin in the virtual world before proceeding to the building stage.” He further explains that the construction team can ride on the digital twin to visualise the working environment, facility management can also be benefitted when digital twin integrates with IoT and Artificial Intelligence.
九龍東正蛻變成本港核心商業區，迎來發展新一頁。建造業議會主席何安誠工程師早前造訪位於巧明街的商業發展項目「KTIL240」，此地標建築於九巴車廠原址興建，項目投放大量資源於建築信息模擬（BIM），設計階段已諮詢建築及物業管理團隊意見，各方通力合作， 以數碼化和智能設計促進效率，克服建築難關，從而達致可持續發展。
歸納意見 及早調整設計
KTIL240為新鴻基地產旗下項目，總樓面面積（GFA）達115萬平方呎，項目包括兩座辦公大樓和商場，觀塘車水馬龍，發展項目更須精準數碼化管理，BIM輔助尤其重要。新鴻基地產工程管理部高級策劃經理麥啟華透露項目有逾40名BIM工程師坐鎮，從設計階段已積極與各階段團隊協調，未雨籌謀。他續表示公司早年已開始運用BIM，然而當年電腦科技未成熟，BIM僅應用於建築階段，只負責碰撞測試；今非昔比，此項目早於設計階段已應用BIM，數碼化貫通建築物生命周期，從源頭起已考慮營運及維修需要，「物業管理團隊由設計模型時已開始給予意見，設計團隊遂可因應其需要改善設計，及早調整，假如後期才協調或許已難以再作改動。」
大眾對建造業時有體力勞動、從業老化的刻板印象；惟此項目大幅採用數碼化，團隊年輕，以新科技扭轉形象，提升效率，麥啟華表示：「現場同事一路先在虛擬世界建立數碼模型和數碼分身，及後才動工，從而減少實際施工時的錯誤。」他續指數碼分身除有助工程人員預視工作環境，更有利物業管理，例如配合物聯網及人工智能提升管理質素。
3D幾何模型助建旋轉樓梯
項目工程複雜，團隊不諱言如非BIM協助，難以順利完成部分工序和結構。以商場特色旋轉樓梯為例，建築呈不規則結構，建築過程又有不少淨空高度挑戰，團隊靠BIM設計3D幾何模型，繼而以組裝合成（MiC）方式由廠房生產組件，以減少現場工序。施工期間，團隊一直以雷射掃描監察，並以3D圖紙配合擴增實境（AR）及虛擬實境（VR），確保工程符合設計。
項目位處鬧市，工地空間有限，項目多處應用裝配式設計（DfMA），以場外生產減少現場人手和資源浪費，增加建造效率。傳統工程中，空調機房配件多於現場安裝，KTIL240則以DfMA方式於場外組裝，配件悉數置於櫃中，擺放有序整齊，增加機房空間。惟機房一體化後體積變大，添加運輸難度，團隊遂採用「n-3」吊運方法，及早於樓面預留空間吊運模組，一方面方便安裝，另一方面又可利用樓面孔洞預先運入其他機電組件，加快工程進度。