Check Stress for Cross Section at Construction Stage

Check the compression and tension stresses for cross section at construction stage for which the stresses are maximum,in a spreadsheet format table.

Table Tool in midas Civil offers a variety of powerful built-in functions. Refer to Usage of Table Tool for detail directions.

From the Main Menu select PSC > PSC Design Result Table > Check Stress for Cross Section at Construction Stage.

Upon executing the PSC Design Result Table > Check Stress for Cross Section at Construction Stage., Records Activation Dialog prompts. Click after selecting the output entities such as elements, part number, Comp./Tens. Stress.

Refer to Usage of Table Tool and check the following data:

Elem: Element number

Part: Check location (I-End, J-End) of each element

Comp./Tens.: Compression or Tension Stress

Stage: Construction stage at which stresses are maximum at the corresponding section.

CHK: Combined stress check for construction stages

FT: Combined Stress due to bending moment about major axis (My) and axial force at Top fiber

FB: Combined Stress due to bending moment about major axis (My) and axial force at Bottom fiber

FTL: Combined Stress due to bending moment about major axis (My), minor axis (Mz) and axial force at Top Left fiber

FBL: Combined Stress due to bending moment about major axis (My), minor axis (Mz) and axial force at Bottom Left fiber

FTR: Combined Stress due to bending moment about major axis (My), minor axis (Mz) and axial force at Top Right fiber

FBR: Combined Stress due to bending moment about major axis (My), minor axis (Mz) and axial force at Bottom Right fiber

FMAX: Maximum combined stress out of the above six.

ALW: Allowable stress of cross section at construction stage

Note 1. Compressive stress limit for AASHTO LRFD (2012)

When AASHTO LRFD (2012) is selected, allowable compressive stress is determined based on the clause 5.9.4.1.1

Compression stress limit = 0.60f'ci (ksi)

Where, f’ci is specified compressive strength of concrete at time of initial loading or precompressing; nominal concrete strength at time of application of tendon.

midas Civil computes the compressive strength of concrete (f’ci) during the construction stages according to the construction days defined in Define Construction Stage function and Time Dependent Material (Comp. Strength). If f'ci exceeds the specified compressive strength, f'c, the value of f'ci will be replaced into the value of f'c.

Note 2. Tensile stress limit for AASHTO LRFD (2012)

When AASHTO LRFD (2012) is selected, allowable tensile stress is determined based on the clause 5.9.4.1.2.

Note 3. Compressive stress limit for CSA-S6S1-2010

When CSA-S6S1-2010 is selected, allowable compressive stress is determined based on the clause 8.8.4.6.

Compression stress limit = 0.60f'ci (ksi)

Where, f’ci is specified compressive strength of concrete at time of initial loading or precompressing; nominal concrete strength at time of application of tendon.

Note 4. Tensile stress limit for CSA-S6S1-2010

When AASHTO LRFD (2012) is selected, allowable tensile stress is determined based on the clause 8.8.4.6