REFLECTIVE JOURNAL WEEK 5 CONSTRUCTING ENVIRONMENTS ACTIVITY_STRUCTUAL CONCEPTS NAME: SAGARIKA SANJAY CASE STUDY BUILDING NAME: MSLE 1. & 2. DESCRIPTION/CLASSIFICATION OF STRUCTURAL SYSTEMS & GRAPHIC STRUCTURAL DIAGRAMS (a) foundations and footings These are the lowest point of a building which supports the structure such as the foundations of the building base which is made of concrete. The footings of the MSLE building and the surrounding buildings help hold up the building. The load bearing walls behave to be part of the dead load. (b) Primary structure (horizontal and vertical) horizontal- beams, concrete slabs, lintels vertical- existing load bearing walls (c) secondary structure (horizontal and vertical) Horizontal- colorbond cladding, timber flooring, plasterboard ceiling lining, skylghts Vertical- external zinc wall cladding and colorband, automatic doors, windows, balusters.
3. IDENTIFICATION, DESCRIPTION AND LOCATION OF STRUCTURAL MATERIALS
4. IDENTIFY THREE STRUCTURAL JOINTS
5. IDENTIFY AND EXPLAIN THE USE OF DIFFERENT STRUCTURAL FIXINGS (WELD, CONCRETE, BOLT, SCREW, NAIL)
WeldWelding is used to fabricate structures together. They are usually used to connect steel members together.
ConcreteSince concrete has high compression strength but low tensile strengths, introducing reinforced concrete which is a steel grid enclosed in aggregate, increases the tensile strength of the structure and therefore making it more rigid.
BoltSite connections are bolted. They are usually used to connect steel members.
Screwscrews have a high tensile strength when screwing down the deck. It is more effective in application where joists are attached and so screws are brittle and will fail when subjected to shear loading.
NailNails are used in most of the structural and framing applications.
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6. SUSTAINBILITY AND ENVIRONMENTAL ANALYSIS (a) Carbon footprint use materials that are recycled or can be recycled minimize land fill waste Have materials of high density transported from close places rather than far so that it will not cause any damage to the environment as well as save on petrol, contributing to the well-being of the environment. Timber has lower carbon footprint compared to other materials and is easier to use to construct because it is simple. Production of timber also requires less energy. Have a more effective planning in order to reduce the carbon footprint. (b) Embodied energy Large amounts of water are used in the construction process as well as to break down the structure. Alternate ways can be introduced to reduce the water embodiment by designing more durable material which can replace the need for large amounts of water/energy. (c) Recyclability Plasterboard which is usually used as a primary structure in junctions is 95% recyclable . Timber is non-toxic and is a renewable material Various other materials are being designed to create future sustainability which consume less energy, are durable as well as recyclable to provide a more efficient green building.
7. ECONOMICAL IMPLICATIONS OF DECISION - Choosing suitable materials which are low in cost but long lasting i.e. it does not corrode easily. - Using efficient technology - Limiting power usage and water consumption in constructing buildings - Environment safe materials that is not producing any toxic gases in the atmosphere as to reduce costs of environmental damage/degradation. - Having a proper fabrication and project management in design as to save on experimenting on the building by using additional resources.