Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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State Plane Coordinate Systems
The state plane coordinate system (SPCS or SPS) is a collection of 124 coordinate systems or geographic zones prepared for particular regions of the U.S. Every state consists of one or more than one state plane zone, the boundaries of which generally fol…
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**Problem Statement:** For a highway curve with \( D_a = 5^\circ 00' \), \( I = 20^\circ 30' \), and PI station = 63 + 25.53 ft, calculate the requested values to lay out the circular curve at full stations (100 ft). --- **Part D:** **Objective:** Calculate the middle ordinate \( M \). **Answer Provided:** - \( M = 18.29 \, \text{ft} \) Feedback: Correct answer is shown. Your answer 18.28 ft was either rounded differently or used a different number of significant figures than required for this part. --- **Part E:** **Objective:** Calculate the external distance \( E \). **Answer Provided:** - \( E = 18.58 \, \text{ft} \) Feedback: Correct answer is shown. Your answer 18.585 ft was either rounded differently or used a different number of significant figures than required for this part. --- **Part F:** **Objective:** Tabulate stations, deflection angles, and incremental chords to lay out the curve at full stations (100 ft). - **Instructions:** - Express angles in degrees to four decimal places. - Express first station numbers as integers. - Express second station numbers and chord lengths in feet to two decimal places. - The PC station should be placed at the bottom of the table. **Table Structure:** - Columns: Station, Chord, Defl. Increment, Defl. Angle. - Example data: - Chord for first entry: 00.00 - Defl. Increment for first entry: 2.500 This part requires filling out tabulated data for stations along the curve, considering precise calculations in chord length and deflection angles.
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Transcribed Image Text:**Problem Statement:** For a highway curve with \( D_a = 5^\circ 00' \), \( I = 20^\circ 30' \), and PI station = 63 + 25.53 ft, calculate the requested values to lay out the circular curve at full stations (100 ft). --- **Part D:** **Objective:** Calculate the middle ordinate \( M \). **Answer Provided:** - \( M = 18.29 \, \text{ft} \) Feedback: Correct answer is shown. Your answer 18.28 ft was either rounded differently or used a different number of significant figures than required for this part. --- **Part E:** **Objective:** Calculate the external distance \( E \). **Answer Provided:** - \( E = 18.58 \, \text{ft} \) Feedback: Correct answer is shown. Your answer 18.585 ft was either rounded differently or used a different number of significant figures than required for this part. --- **Part F:** **Objective:** Tabulate stations, deflection angles, and incremental chords to lay out the curve at full stations (100 ft). - **Instructions:** - Express angles in degrees to four decimal places. - Express first station numbers as integers. - Express second station numbers and chord lengths in feet to two decimal places. - The PC station should be placed at the bottom of the table. **Table Structure:** - Columns: Station, Chord, Defl. Increment, Defl. Angle. - Example data: - Chord for first entry: 00.00 - Defl. Increment for first entry: 2.500 This part requires filling out tabulated data for stations along the curve, considering precise calculations in chord length and deflection angles.
**Part F** **Instruction:** Tabulate stations, deflection angles, and incremental chords to lay out the curve at full stations (100 ft). **Guidelines:** - Express angles in degrees to four decimal places. - Express first station numbers as integers. - Second station numbers and chord lengths should be expressed in feet to two decimal places. - The PC station should be placed at the bottom of the table. **Table Layout:** - **Columns:** - **Station:** Consists of two fields for entry, the first for the integer part and the second for the decimal part (displayed as "+ 00.00"). - **Chord:** Field for entering chord length. - **Defl. Increment:** Pre-filled with "2.500". - **Defl. Angle:** Field for entering deflection angle. - **Rows:** - Each row provides space for entering data for each station. - All rows have pre-filled values for "Defl. Increment" set to 2.500. **Buttons:** - **Submit:** To submit the completed table. - **Request Answer:** To request assistance or answers. **Contextual Information:** The table is designed for detailed input and calculation of stations, chords, and deflection angles necessary for the engineering layout of a curve, with precision required for each measurement type.
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Transcribed Image Text:**Part F** **Instruction:** Tabulate stations, deflection angles, and incremental chords to lay out the curve at full stations (100 ft). **Guidelines:** - Express angles in degrees to four decimal places. - Express first station numbers as integers. - Second station numbers and chord lengths should be expressed in feet to two decimal places. - The PC station should be placed at the bottom of the table. **Table Layout:** - **Columns:** - **Station:** Consists of two fields for entry, the first for the integer part and the second for the decimal part (displayed as "+ 00.00"). - **Chord:** Field for entering chord length. - **Defl. Increment:** Pre-filled with "2.500". - **Defl. Angle:** Field for entering deflection angle. - **Rows:** - Each row provides space for entering data for each station. - All rows have pre-filled values for "Defl. Increment" set to 2.500. **Buttons:** - **Submit:** To submit the completed table. - **Request Answer:** To request assistance or answers. **Contextual Information:** The table is designed for detailed input and calculation of stations, chords, and deflection angles necessary for the engineering layout of a curve, with precision required for each measurement type.
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