The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula

• A. <img src="/_files/images/civil-engineering/steel-structure-design/104-14-148-1.png">
• B. <img src="/_files/images/civil-engineering/steel-structure-design/104-14-148-2.png">
• C. <img src="/_files/images/civil-engineering/steel-structure-design/104-14-148-3.png">
• D. <img src="/_files/images/civil-engineering/steel-structure-design/104-14-148-4.png">