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'RAPT là gói phần mềm ứng dụng cho thiết kế bê tông cốt thép và kết cấu bê tông dựn ứng lực'


Phần mềm RAPT là công cụ phân tích và thiết kế bê tông cốt thép và bê tông ứng suất trước được viết bởi các kỹ sư thực nghiệm trong lĩnh vực. Công cụ toàn diện trong phân tích và thiết kế kết cấu bê tông.

 

RAPT hộ trợ tiệu chuẩn thiết kế quốc tế:AS 3600 - 2001; AS 1480/AS1481; BS 8100; ACI 318-99/UBC; EUROCODE 2; SABS 0100; CP 65 - 1999
 


OTHER Codes based on those listed above can be emulated using the large range of variable default settings available in RAPT.  Also extra codes may be added on request.

Cross Section Input

The following design utilities are incorporated in RAPT:

  • General Concrete Member Analysis and Design
  • Concrete floor system Analysis and Design
  • General flexural concrete section design
  • Concrete column design
  • Composite concrete/steel beam design
  • Tendon Profiling

The input is fully interactive using spreadsheet format.  Typical design parameters are defaulted where relevant.  The emphasis is placed on minimizing laborious data entry, and providing maximum flexibility in design options.  Program execution proceeds interactively, progressing through the design sequence, showing all steps normally taken in standard design office procedures.

Designers may alter any decision made by RAPT on their behalf.  Data output is in a form consistent with typical presentation of structural design computations.  The output is selective, may be any combination of graphics and text and may be as detailed as desired.

 

RAPT and PARTIALLY PRESTRESSED CONCRETE DESIGN

 

In RAPT an integrated approach to reinforced and post-tensioned design is adopted, consistent with the concept of partial prestressing. 

Fully prestressed design specifies that a minimum compressive stress exists in the concrete under all service conditions.  That is, the concrete is at no time cracked or subject to tensile stresses.

In contrast, partial prestressing requires that structural elements comply with design limit states of ultimate strength and serviceability (as with reinforced concrete).  This rational basis for design is in accordance with the philosophy adopted in modern design codes, in which reinforced concrete design and design for full prestress represent the two extremes of structural concrete design.

In this manner, prestressed concrete represents only an extension of the concept of conventionally reinforced concrete, being essentially a material hybrid, utilizing the compressive strength of concrete and the high tensile capacity of steel: Post-tensioned concrete having obviously superior serviceability characteristics in terms of deflection and crack control.  This permits a rational and consistent approach to structural concrete design and is the philosophy adopted in the RAPT package.

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