QUESTION 1: For the HE300M cross-section steel column, which is under the effect of 335kN from fixed loads and 825kN from live loads, design the base plate considering the ÇYTHYDE-2018 and AISC-LRFD specification rules and determine the plate thickness. The properties of the profile used for the steel column are given in the table below. Given and matters to be considered *Steel material class: S235 * Yield stress of steel material (Fy): 235 N/mm2 *The breaking stress of the steel material (Fu): 360 N/mm2 *Concrete strength class: C25 - fck=fc'=25 MPa *Concrete block dimensions are 400x400mm2. *While choosing the dimensions of the base plate to be designed, selection should be made to take values ​​such as x50mm*x50mm or x00mm*x00mm (x is an integer between 1 and 9). * LRFD method will be preferred as the design method. * Where needed, AISC-LRFD specification and its annexes will be used.

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Alloys

An alloy is an admixture of two or more metals or a metal and a non-metal. Since ancient times, man has been using alloys. Alloying helps to retain the properties of the parent matter, such as hardness, strength, toughness, ductility and is corrosion-resistant. Copper alloys such as brass have antimicrobial properties that help to fight against (Coronavirus disease 2019) COVID-19 and other hospital-acquired infections. Some common alloys are brass, bronze, solder steel, etc. Most alloys have a lower melting point than their constituents. This is due to the presence of a nonmetal as one of the constituents that behaves as an impurity and restricts the raise of melting point.