VICINITY MEDICAL CENTRE
Product: Vicinity Medical CentreÂ
Application: Vicinity Medical CentreÂ
Sectors: Infrastructure; Commercial
Location: Queensland
Forged in Steel provided the steelworks for the construction of the Vicinity Medical Centre in the Robina Medical Precinct in Robina, Queensland. The Vicinity Medical Centre has a total of 2200 sq m of net lettable area, which can house medical or office spaces.
The steelworks for this project consist mainly of the typical flybrace, columns, beams, braces, and window head. The flybrace is placed at every third purlin and is composed of 50x50x5 equal-angle steel attached to the roof beam or rafter and purlin with M12 bolts. The roof beam or rafter is further attached to the purlin with a 75×8 plate cleat and 2 M12 purlin bolts.
The window head is attached to the steel column (either rectangle, square hollow section, or universal column) with 10 plate cleats and M24 bolts. To the in situ concrete or blockwall, the window head is attached with 2 M20 Ramset Chemset 800 series anchors through a 10mm end plate and embedded 150mm into the concrete.
The horizontal cross bracing at the beam and strut intersection consists of the universal beam and square hollow section attached perpendicular to each other with cleat plates and bolts. The trusses, made with round bars and connected with turnbuckles, are also attached to the beam with a cleat plate and M24 8.8S bolts. The typical bracing member is a rectangular hollow section connected with 10 cap and fin plates and 4 M20 8.8S bolts.
The steel rafter is connected to the block pier by 8 M20 cast-in bolts, with 350mm embedment and 20mm non-shrink grout. The 300×600 block pier is reinforced with 12 N16 vertical bars, R6 ligs, and core filled with 32Mpa concrete.
Steel columns are erected on a 12mm base plate with 20 diameter holes for the M16 5.8 Hilti studs, embedded 150mm into the slab. In between the base plate and slab is a 30mm non-shrink grout. At the top, the column has 10mm stiffener plates on each side, full-strength butt welded to the 10mm flange doubler plates. Bracing cleats are attached where applicable. The beams are attached to the columns with 20mm end plates and 8 M20 8.8S bolts.
All structural steelwork for the Vicinity Medical Centre project used Grade 300 steel for the open sections, Grade 350 for the hollow sections, and Grade 250 for the flat plates. Grade 300 steel is known for its resistance to corrosion and rust. Grade 350 steel is highly durable and weldable and often used as a structural member. Grade 250 steel plate also has excellent weldability like Grade 350 steel and is known for its strength.
The butt welds are full strength butt welds with full penetration per AS 1554, or the standards for the welding of steel constructions. The butt welds are tested through visual scan, visual examination, and ultrasonic and magnetic particle testing. Meanwhile, the fillet welds are to Category SP with a minimum 6mm continuous fillet weld using E49xx consumables. The fillet welds are also visually scanned and examined, as well as magnetic particle tested. All hollow sections are sealed using 5mm plates and provided with blow holes to all galvanised hollow sections.
The cold-formed steel (i.e., light gauge), elements (such as trusses, stud walls, purlins, etc.), and other connections and assemblies are in compliance with AS/NZS 4600, which is the minimum requirement for the design of cold-formed structural members used for load-carrying purposes in buildings. The structural steelwork is treated to prevent wear and tear.