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eering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright黃蜀云 When designing a structure ,the designer must estimate all the forces acting on the structure and its ponent parts . The effects of the forces are then considered in relation to the stability of a building as a whole and ponent parts are made strong enough to carry their particular function . English for Civil Engineering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright黃蜀云 The forces to be considered depend on the type and purpose of the structure . In buildings ,for example ,the forces will be due to the weight of the structure and its occupants as well as to the pressure exerted by wind . English for Civil Engineering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright黃蜀云 The loads of a building English for Civil Engineering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright黃蜀云 In the wall for retaining earth ,the forces will be due to the weight of the wall, the pressure exerted on the wall by the earth behind it ,and the pressure due to any buildings or roadways near the top of the wall . 擋土墻受力 English for Civil Engineering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright黃蜀云 The internal fibers or particles of the various parts of a structure are put into a state of stress by the forces they are needed to resist ,the basic forms of stress being tension , pression ,shear and torsion . b a tension pression English for Civil Engineering~ Road Engineering 四川交通職業(yè)技術(shù)學(xué)院 Sichuan Vocational Technical College of Communications ?國家示范性高等職業(yè)技術(shù)學(xué)院 |Leadin(導(dǎo)入 )| Dialogue(對話 ) |Text (課文 ) | Exercises(練習(xí) ) |Guided Writing(寫作 )| ?Text copyright