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- Bill Belichick
We strongly believe when there’s a will, there’s a way – for there are always more solutions than difficulties.
Located at the prime location in Tsim Sha Tsui, H-Zentre is a single commercial complex developed by Henderson Land Development. Formerly a multi-storey car park, it was transformed into a 20-storey Ginza-style complex where dining, clinic, beauty & wellness and retail trade mixes were bundled.
Entrusted by the client, Goldwave delivered a faster, safer, and highly efficient structural steel solution that spanned from structural design, fabrication, to on-site erection, as opposed to conventional concrete construction.
The superstructure was designed as an 85.5M tall building measured from ground floor to main roof with 3 basement floors, in which the lowest level was 14.6M below ground.
Henderson Land Development Company Limited
Wong & Ouyang (HK) Ltd
Ove Arup & Partners HK Ltd.
Hong Kong Construction (General Builders) Ltd.
HKGBC BEAM Plus for New Building V1.2 – Provisional Platinum Rating
International Property Awards 2018-2019 – Best Mixed-Use Development HK 5 Star Winner
H-Zentre was divided into 3 multi-functional zones: 11 levels of retail and dining, medical centres, and 7 floors of car parks. From the 8/F to main roof and transfer room floor, complicated multi-storey composite structure and large span pre-fabricated modularized Transfer Truss Structure were purposefully designed to support load transfer. Large span cantilever structure was incorporated with curtain wall installation. Hence, the overall building structure was much more complicated than traditional commercial buildings.
To maximize the floor area of car parks below the 8/F where car parks and retail area were attached, there was a large difference in levels between the two areas. Hence, the E&M design and the access across the difference in levels between the car parks and retail shops posed a huge challenge throughout planning and construction stages.
Main beams were re-designed to optimize large column spacing (some column spacing were larger than 16M). However, since the limited headroom remained unchanged, the general beam depth in car park area was restricted to 475mm.
Curvy-shaped car ramps were composed by beams, in which high quality workmanship was required to shape the curvature during fabrication and site work installation.
Several floors above 8/F were reserved for restaurants and medical centres that demanded more complex E&M and drainage design. Subsequently, a significant number of penetrations were required in various locations to allow necessary routing of services to pass through reinforced concrete and also steel members. During the design stage, significant number of beams were carefully planned and analyzed for placing openings cater for service pipelines underneath were carefully planned and analyzed that the E&M Zone was merged with the structural zone to save space forin order to cater for the installation of medical equipment. Our dedicated on-site construction sequence facilitated the overall program of all trade mixes.
Bolt and nut connection scheme was designed to increase installation efficiency for the secondary beams to connect to the main beams.
Besides the skillful welding technique, experience off-site/ onsite, and rigid quality control, the structural steel components such as irregular shape of crank beams, 3D curved beams for car ramp, self-fabricated cellular beams (hyper beams), built-up CFT (Concrete Filled Tube) columns and semi-modularized load transfer truss were made by 80mm thick high strength steel plates to maximize the length of span while minimizing the weight of the building structure.
Surrounded by tourist spots, commercial buildings, and cultural landmarks, single-way road access and congested traffic to construction site imposed significant challenges to material transportation, erection sequence, and storage of steel structure components. Due to geographical constraints, loading and unloading of materials were restricted to 2 trucks per day.
From submission to Building Authority, completion of foundation work, to the completion of structural steelworks, the construction program was scheduled to be completed in less than 3 years after the contract was awarded.
In view of congested traffic in the construction site, application of latest Tekla modelling was adopted throughout the entire fabrication process. The methodology, while facilitating efficient material planning / procurement and optimizing the utilization of material during fabrication, also diminished waste and expedited just-in-time delivery of components.
The actual construction program was completed three months earlier than expected. The brilliant achievement relied heavily on the cohesive collaboration among all teams from innovative design, efficient fabrication/logistic management, experienced project management, to skillful on-site erection.
Increase Building Efficiency (Greater Headroom and Usable Area)
More Efficient Construction Program
Mitigate Air Pollution from Concrete Wet Trade
Environmental Friendliness - Reduced Massive Construction Material Debris (Wood Plank)
Completion of Foundation Work
Start of Erection of Steel Structure
Completion of Steel Sub-structure