Long Span Roof Structures

The stakes are very high and very few structural engineering firms have the required technical chops and experience with this scale of roof.

Long span roof structures.

Portal frame precast 7. Insitu rc tensioned 2. Long span roofs are generally defined as those that exceed 12 m in span. More recently the addition of kinetic roof elements have further added to the allure of long span construction.

Portal frame insitu rc 6. Longspan buildings are popular for sports arenas and other applications requiring maximum visibility and for bulk storage and retail uses requiring large clear area. From the roman pantheon to the renaissance duomo to the astrodome spanning large spaces has always challenged engineers and builders. Within these general forms of long span structure the materials used and labour required for assembly are an important constraint along with other economic factors.

Apr 14 2014 explore sophia panova s board long span roofs on pinterest. The funicular structures include the parabolic arch tunnel vault and dome which act in pure compression and which have a rise to span ratio of 1. Sep 11 2015 explore kaia meier s board large span buildings structures on pinterest. See more ideas about structure architecture architecture architect.

For such structures span is unable to be achieved with ordinary r c c. Long span structure s structures with span larger than 15 20 meters are regarded to as long span structures. Long span roof are today widely applied for sport social industrial ecological and other activities. Generally long spans result in flexible column free internal spaces reduces substructure costs and time to erect the structure.

10 to 1. Portal frame prefabricated steel. Structural steel erected on spot 4. The advantage of long span buildings is that there is more space inside.

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. By general consensus longspan structures are at least 20 meters about 65 feet. This seminar will provide an overview of the design of long span steel roofs including a survey of recent long span structure types concept planning for long span roofs roof materials loading criteria including wind tunnel testing analysis. Long span roofs can create flexible column free internal spaces and can reduce substructure costs and construction times.

The experience collected in last decades identified structural typologies as space structures cable structures membrane structures and new under tension efficient materials. 2 and the cable stayed roof the bicycle wheel and warped tension surfaces which act in pure tension. Precast concrete tensioned 3. See more ideas about building structure architecture structures.