Modern Long Span Roof Design

For starters the gable roof is a very simple straightforward and functional design all modern characteristics.

Modern long span roof design.

Pitched roofs can take on various aesthetics that when detailed right can exude a modern feel. This is a very modern design that is aesthetically unique like viewing a butterfly in flight while looking on from the exterior. Special aspects of conceptual design decisions on long span structures. Since a mansard roof has such a unique design choosing a unique material could make the roof that much more special.

Long span roof are today widely applied for sport social industrial ecological and other. Also different architectural styles will use the same type of roof. Here we have a wood framed gable roof. Long span roofs are generally defined as those that exceed 12 m in span.

The design borrows some from the concept of the shed roof avoiding a slope on the backside to allow more natural light and functional space into the interior. They are commonly found in a wide range of building types such as factories warehouses agricultural buildings hangars large shops public halls gymnasiums and arenas. Continuing on from part 3. Long span roofs can create flexible column free internal spaces and can reduce substructure costs and construction times.

Let s consider a basic gable wood roof framing design. Roof area is 31 525 sq metres weight is 11 000 tons span at widest point 209 metres height is 85m from field level to highest point roofing material is pvc on insulated acoustic steel deck 100 of the field 91 of seating area exposed with the roof open pen close time 20 minutes 21m per minute. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. From ancient massive structures dl ll 1 to modern lightweight structures dl ll 1.

A gable roof provides the opportunity for additional floor space in the roof volume like a loft or attic space. Architectural appeal drives the design of such structures but many factors working simultane ously and in varying degrees must be analyzed in long span design. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. But the complexity of long span design increases exponentially when snow load wind load seismic load deflection serviceability and the dead weight of the floor or roof system are all factored in.

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