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Prestressed Concrete

The post-tensioned (PT) concrete floor remains one of the most structurally efficient, economic and durable forms of floor construction. With respect to reinforced concrete (RC), the efficiency and hence economy of post-tensioned (PT) concrete is obtained due to the following reasons: –

  • the prestressed concrete (PT) structure exhibits a more efficient structural catenary behaviour compared to the structural bending behaviour of the reinforced concrete (RC) structure resulting in lesser tensile stresses and hence lesser steel reinforcement and concrete section requirements

  • the prestressed concrete (PT) structure exhibits beneficial compressive stresses negating the induced tensile stresses from external loads, hence resulting in lesser steel reinforcement requirements

Rendering: Extruded FE model of PJ Sentral Tower 6, Petaling Jaya, Selangor, Malaysia showing PT band beams spanning approximately 15m in an open-plan office space with an oval footprint.

Rendering: Extruded FE model showing PT transfer plate first and second cast 3D tendon arrangement.

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