Civil Engineering Department of Structural Engineering Assignment

Assignment Task

• Manual Calculation Method (Design Calculation of Pre-Stressed Concrete Hollow Circular Pole and Pre-Stressed Concrete I-Section Pole).

The manual method for designing pre-stressed concrete hollow circular poles and pre-stressed concrete I-section poles involves several steps. The main steps include:

Determining the design loads: The first step is to determine the design loads that the pole will be subjected to, such as dead load, live load, wind load, and earthquake load.

Selecting the pole size: Based on the design loads, the appropriate size of the pole (diameter or depth and width) can be selected.

Determining the concrete strength: The compressive strength of the concrete used in the pole must be determined.

Determining the prestress force: The prestress force to be applied to the pole must be determined based on the design loads and the concrete strength.

Designing the reinforcement: The reinforcement (such as steel rebar) must be designed to provide the necessary strength and stability to the pole.

Determining the losses of prestress: The losses of prestress, such as friction and shrinkage, must be determined and compensated for in the design.

Checking the pole for stability and strength: The pole must be checked for stability and strength to ensure that it can withstand the design loads.

Detailing the pole: The pole must be detailed, including the layout of the reinforcement and the location of the prestress tendons.

It's important to note that these steps are general, and the specific steps and calculations required for design may vary depending on the codes and standards being followed. It's recommended to consult a professional Engineer and follow the codes and standards specific to your project.

• Software Calculation Method ( Design Calculation of Pre-Stressed Concrete Hollow Circular Pole and Pre-Stressed Concrete I-Section Pole ).

The steps for using software to design pre-stressed concrete hollow circular poles and pre-stressed concrete I-section poles may vary depending on the specific software being used, but generally include:

Inputting design loads: The first step is to input the design loads that the pole will be subjected to, such as dead load, live load, wind load, and earthquake load.

Selecting the pole size: Based on the design loads, the appropriate size of the pole (diameter or depth and width) can be selected.

Inputting concrete strength: The compressive strength of the concrete used in the pole must be inputted.

Inputting prestress force: The prestress force to be applied to the pole must be inputted based on the design loads and the concrete strength.

Designing the reinforcement: The reinforcement (such as steel rebar) must be designed using the software.

Inputting the losses of prestress: The losses of prestress, such as friction and shrinkage, must be inputted and compensated for in the design.

Checking the pole for stability and strength: The pole must be checked for stability and strength to ensure that it can withstand the design loads.

Generating detailed drawings and reports: The software generates detailed drawings and reports, including the layout of the reinforcement and the location of the prestress tendons.

• Full Comparison of design calculation or results of Two Methods (Manual and Software Design of Pre-Stressed Concrete Hollow Circular Pole and Pre-Stressed Concrete I-Section Pole which is batter).

I need more Details because my professor needs that, please compare by design and science, use any software you can solve, please be careful dimensions.

• Data given: -

1. Design Dimensions of Pre-Stressed Concrete Hollow Circular Pole

Poles are modelled as, Top, (160 x 80) and Bottom, (300 x 160)

Height, 11000mm and under G.L 1800mm

All dimensions Are millimeters

1. Design Dimensions of Pre-Stressed Concrete I-Section Pole

Poles are modelled as, 2 x (300 x 60), (280 x80)

Height, 11000mm and under G.L 1800mm

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