Coursework - Course Work COURSE WORK 1 st By Li Chaoyi(...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Course Work COURSE WORK 1 st By Li Chaoyi(  ) NO. 06328011 1 Course Work Coursework Answer both questions 1. (A) Discuss the factors to be considered in the selection of a suitable structural material for the construction of civil engineering works Answer: The factors are shown as follows: (1) Strength of the material , that is, the loading capacity in tension, compression, shear and torsion of the material. Strength is significant factor to be considered is due to that the materials for construction must be capable of supporting their own weight and any applied loads without distortion which would reduce the efficiency of a structure or be unsightly. And also, we should think about the capacity of the material in different states of stress, which means, a material is not equally strong in force with different states such as directions. For example, if a large amount of tension is applied to the construction, concrete is not a suitable choice since concrete is strong in compression but virtually weak in tension. (2) Ductility of the material . All materials are elastic to a certain extent. Materials which do this to a high degree are ductile and have good ductility. Materials which are required to have high strength in tension generally need good ductility. Materials that are linearly elastic up to failure are absolutely unsuitable structural .They give no warning of approaching failure. (3) Durability of the material . All material deteriorate as time goes, but at different rates. Deterioration decides that how long can the construction can be used or stand directly. The deteriorations which are shown as follows should all be taken into account when choosing the materials: corrosion of metals usually occurs in moist condition and atmospheric condition insects attack for the materials, mainly timber limestone will slowly dissolve in water ect. (4) Fire resistance. Fire resistance is expressed as the period of time (in hours) during which a structural element survives the standard fire test while continuing to perform its normal structural function. In fires .materials may burn, melt, loose their strength, expand, and even crack. The period of fire resistance required varies according to the use of the structure, its height, floor area and cubic capacity. For instance, a hospital can not be made of steel admittedly since we can not transport that lot of patient to a safe place in such a short time before the steel structure clasped. (5) Conduction of heat . we should this factor into account since that this factor can largely affect the inter temperature of a building .in cold area , heat-insulated material can give a comfortable and warm house while a heat-conduct material 2 Course Work will cool down the house. We also have some storage which is made of heat- insulated material to save the energy....
View Full Document

Page1 / 12

Coursework - Course Work COURSE WORK 1 st By Li Chaoyi(...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online