FEATURES
Individual components are characterized by high strength and stability in the compressive stress and tension.
46 APRIL / MAY 2019 //
styled roofs in the area. The lower slope of the mansard
roof features cross laminated timber wall panels erected on
a slope as well as dormer windows, which also utilise CLT,
projecting vertically from the sloping roof.
WYNG Gardens provides
much needed additional space
for students and guests and
improves the quality of the
college's accommodation.
Early planning with the main contractor was essential to
ensure all site requirements were met for the delivery and
installation of the structure. The use of cross laminated
timber as the core structural component, resulted in fewer
delays from bad weather and an increased level of
accuracy. The lightweight, yet robust structure meant that
there was an increased speed of construction, allowing
early access for follow on trades which again reduced the
overall project time.
Rectangular in shape, the structure encompasses CLT
(cross laminated timber) loadbearing walls both internally
and externally. Steel lintels are used above the central
corridor to support double spanning CLT floor panels
above, while steel down stand beams transferred heavy
loads at the back of the structure to the entrance gate area.
Cross laminated timber forms the staircase from the
ground to the upper floors which incorporate a distinctive
arrangement with quarter landings that cantilever from the
stair shaft walls. Likewise, the lift shaft structure is
constructed with cross laminated timber.
CLT is designed to act as deep beams to allow significant
loads at the back of the structure to be transferred around
the ground floor’s curved glazed entrance area, with steel
‘goalposts’ used to support the masonry and cross
laminated timber beams above. The curve is continued for
the full height of the structure with the use of CLT facetted
sections and topped with an isometric dome. The roof
around the dome is also formed with CLT panels which
incorporate large circular notches.
A pitched, slate-coloured mansard roof tops the
remainder of the building, reflecting a number of similar
Cross laminated timber has various applications including walls,
ceilings and roofs.
www.timberiq.co.za