HKIE Professional Assessment - Civil Discipline Practice Questions - HKIE Professional Assessment - Civil Discipline (Hong Kong Institution Of Engineers) Exam

In elastic uncracked reinforced concrete elastic analysis, what is the modular ratio α_e defined as?

The ratio of concrete compressive strength to steel yield strength (f_cu / f_yk) The ratio of steel modulus of elasticity to concrete modulus of elasticity (E_s / E_c) The ratio of concrete modulus of elasticity to steel modulus of elasticity (E_c / E_s) The ratio of steel yield strain to concrete ultimate compressive strain (ε_y / ε_cu)

Correct Answer:

The ratio of steel modulus of elasticity to concrete modulus of elasticity (E_s / E_c)

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