Required Tasks

$(1)$ Set up the following action, in term of uniform distributed load $($UDL$)$ along them beam $($characteristic value$)(5$ points$)$

$(1\mathrm{.}1)$ Structural Dead Load

$(1\mathrm{.}2)$ Slab

$(1\mathrm{.}3)$ Asphalt

$(1\mathrm{.}4)$ Live Load

Concrete weight $,=25k\frac{N}{m^3}$

Concrete weight $,=25k\frac{N}{m^3}$

unit weight $,=23k\frac{N}{m^3}$

Pressure $,=5$kPa

$(2)$ Set up an appropriate load combination for SLS $($construction and operation$)$ and ULS $($operation$)$ for design based on your result above and the information provided under the section of Design Basis. $(5$ points$).$

$(3)$ Post$-$tensioning design $(50$ points$)$

Hint: Due to limitation of space at the webs, $2$ tendons are required.

a$)$ Short$-$term loss and long$-$term loss $(20\%)$

b$)$ Required jacking force and number of strands $(20\%)$

c$)$ Valid tendon zone $(5\%)$

d$)$ Proposed prestressing system $(3\%)$

e$)$ Proposed tendon profile $(2\%)$

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