(Solved): QUESTION 1 (20 points) Fig. 1 shows the strucural plan for one-way three-span solid slab system. G ...

QUESTION 1 (20 points) Fig. 1 shows the strucural plan for one-way three-span solid slab system. Given: Concrete slab thickness \( =200 \mathrm{~mm} \), the flooring cover \( =2.5 \mathrm{kN} / \mathrm{m}^{2} \) and live load \( =4 \mathrm{kN} / \mathrm{m}^{2} \cdot \mathrm{f}_{\mathrm{c}}^{\prime}= \) \( 28 \mathrm{MPa} \) and \( \mathrm{f}_{\mathrm{y}}=420 \mathrm{MPa} \), concrete densty=25 \( \mathrm{kN} / \mathrm{m}^{2} \) all beams carry walls of thickness of 300 \( \mathrm{mm} \) and height \( 3 \mathrm{~m} \), and density \( 15 \mathrm{kN} / \mathrm{m}^{2} \) 1- It is required that design \( \mathrm{T} \) or \( \mathrm{L} \) sections for beams \( \mathrm{B} 1, \mathrm{~B} 2 \), and \( \mathrm{B} 3 \). 2- It is required to evaluate stirrups' spacing, s, required for B1, B2, and B3 to resist the shear forces. Nig. 1