WANDEE SUPER SPAN CO., LTD.
Wandee Super Span ™ is a new formation that focus in long span construction in Pattaya. Our solutions include post-tensioned concrete, steel structure and composite structure. Visit Facebook Wandeegroup.
Mario Kleff and his team also offer seismic-resistant residential buildings with state-of-the-art engineering. Visit Facebook Mario Kleff.
Post-tensioned footing for a 2-story villa with a 30 m span structure in Pattaya
Post-tensioned ground floor slab for a 2-story villa in Pattaya. Concrete strength is 600 ksc
Post-tensioned concrete girder of 30 m in length. Concrete strength is 1200 ksc
Excellent structures are mainly defined by demanding engineering. For a cantilever construction of up to 30 meter or column-free spaces of up to 60 meter in residential buildings, custom fabricated steel box girders and cellular beams offer the best performance for the task.
A cantilever is a rigid structural element that extends horizontally and is supported in just one end. Usually it extends from a pillar or concrete wall to which it needs to be attached. Like other structural elements, a cantilever can be built, for example, with a cellular beam, steel box girder or composite slab.
The distance between two pillars is referred to as a span. Until recently, a span of over 15 meter was considered difficult in Pattaya.
Wandeegroup worked in the early 2000s with spans of up to 40 meter. Ideally, the cellular beam and steel plate were used.
BUILT CANTILEVER LENGTHS
BUILT SPAN LENGTHS
48 meter between supports
DESIGNED CANTILEVER LENGTHS
32 meter between supports
DESIGNED SPAN LENGTHS
60 meter between supports
Modern buildings are best built with a combination of reinforced concrete and post-tensioned concrete. Post-tensioning is used extensively in bridges, but also in residential construction for slab, column and wall. Wandee Super Span ™ integrate post tensioning in footing, wall, beam and floor slab.
Reinforced concrete (RC), also called reinforced cement concrete and ferroconcrete, in which steel is embedded in such a manner that the two materials act together in resisting forces. Reinforcement bars or mesh are incorporated to absorbs the tensile, shear, and sometimes the compressive stresses in a concrete structure.
Post-tension concrete (PT) is tensioned steel and compressed concrete, which means that both building materials are placed in their strongest conditions. Reinforcing cables (tendons) are laid inside ducts and tensioned after hardening of the concrete. These tendons are then grouted.
15 meter between supports
RC SLAB WITH INTEGRAL BEAM
30 meter between supports
20 meter between supports
PT SLAB WITH SUPPORTING BEAM
60 meter between supports
Wandeegroup is proud to have built the first multistorey condominium building with a steel frame and composite structure in Pattaya. The steel carrier designed for this purpose with a depth of 900 mm was made by Siam Yamoto Steel. Wandee Super Span ™ now offers steel frame design for the construction of villas.
Steel frame is the undeniable choice for the seismic-resistant construction. Even when it comes to the most demanding projects such as bridges, high-rise buildings or villas with long spans, the steel frame construction has shown its ability to resist severe seismic events.
Concrete frame is heavier and has lower tensile strength compared to steel structures. Hence smart engineering is necessary to create seismic-resistant construction solutions. The construction of reinforced concrete structures is labor intensive.
WANDEEGROUP CELLULAR BEAM
Depth of 1350 mm
Depth of 2150 mm
STEEL BOX GIRDER
Depth of 1900 mm
Depth of 1000 mm