TASK 5 GRADED TIMBER Structural grading of timber is the process by which it is assigned into different stress grades (groups), the timbers within each group should have similar properties. However due to the nature of timber there is inevitably a substantial range of properties within each grade and also an overlap in properties between grades, graded timber is stamped in accordance with The Timber Research and Development Association (TRADA) guidelines. Structural grading can be performed in numerous ways including the following; Visual Stress-grading This is the traditional method of determining stress grades, during this process a grader who is highly trained examines each piece of timber produced in accordance with the European Standard EN 14018. Once visually inspected each piece of timber is assigned to one of the following groups; • Special structural (SS) – this has 50 – 60 per cent strength of ‘Perfect timber’; • General structural (GS) – this has 30 – 50 per cent strength of ‘Perfect timber’; • Reject – not suitable for structural use. Machine stress-grading This process uses a machine to bend the timber, the machine measures the stiffness and uses a correlation between stiffness and strength to assign a stress grade. USING TIMBER FOR STRUCTURAL PURPOSES …show more content…
Factors such as building size, location (is it subject to adverse weather conditions or in a hot climate) and use would all inform the decision making process and have a bearing on the outcome of the final materials chosen. For example in an area with more woodland you may choose to use timber to blend in better with the environment whereas in a built up urban area you may choose to use a combination of concrete and steel for speed and ease of build and also the lower maintenance
There are two different styles of log home construction. The first is manufactured log homes also known as kit homes. The logs are mechanically shaped into uniform dimensions. Manufactured logs may also be milled round or rectangular in profile with endless variations. The second type of construction is handcrafted. The natural characteristics of the logs are preserved to show off their individuality and the joinery of the logs is done with hand held tools. There are three different styles of logs. The first is a D shape log for the exterior log look and flat indoor appearance. The second is fully rounded logs to give the full log look on both the interior and exterior. The third is a square log that gives the appearance of timber construction, being flat on all four sides, with the advantages of log building. Depending on the manufacturer and your corner type, milled logs also come with tongue and grooves on the top and bottom of the logs for a more secure fit.
The process begins when raw plastic is brought to the plant. This raw plastic is running through certain machines depending on the part ordered. The machine takes raw plastic and molds the plastic into the ordered part. Dye is then added if needed to change the color. One person can run up to 13 machines at a time depending on what machines are running. Every two hours quality checks are put in place. To do a quality check an employee takes a shot of product and searches for defective parts. If a defective part is found the machine gets shut down and maintenance fixes the problem. If a defective product is missed on a quality check a red tag is given. If an employee is given a red tag they must attend a red tag meeting. Furthermore, if an employee receives three red tags the employee is laid
Southern yellow pine has been popular for a long time and remains the preferred choice for building professionals. One can use southern yellow pine for building projects that are big and small. This wood is known for our nation’s most used and sustainably harvested wood resource. Southern yellow pine is a reliable product for any task such as building a deck or framing a house. It is one of the most useful kinds of wood considering it is a preferred choice from professional builders to do-it-yourselfers. This wood has many amazing benefits and is one of the most popular choices for outdoor decking. Southern yellow pine is the ideal choice of wood due to its strength & durability, broad availability, and cost efficient pricing.
Gunel, M. Halis. Ilgin H. Emre. "A proposal for the classification of structural systems of tall buildings" Building
In the UK, Timber frame construction is based on factory made structural elements. The timber framed wall panels take the loads on the building to the foundations whilst the outer cladding provides embellishment and weather protection. Now depending on what cladding is to be used is totally up to the client/builder/architect as it is a matter of choice; it can be brick, stone or lightweight claddings, such as timber boarding, tile hanging or render.
The choice of wood also affects the violin's acoustical properties. Traditionally, violin makers used spruce and maple fr...
Laws such as the lever law and Euler’s Buckling Theorem come into play when testing and competition begins. A structure of wood and glue surely has much more to offer than meets the eye.
M2 Construction is well known for maintaining the highest standards in regarding of Quality Performance. In order to achieve a completed project that meets the owner 's quality expectations, we require that all parties to a project must acquire an understanding of those expectations, incorporate them into the contract price, and commit in good faith to carry them out.
He says walnut wood is also a dense wood that gives the guitar a lower sounding tone.
Matus M. (9, April 2012). Super-Durable Material Made from Wood Waste is Stronger, Cheaper, and Lighter Than Kevlar. Retrieved May 27, 2014, from Inhabitat: http://inhabitat.com/super-durable-material-made-from-wood-waste-is-stronger-cheaper-and-lighter-than-kevlar/
Log cabins are structures that are built out of tree logs. The ends are notched in order...
were used in nature and strong and weak were used in quality. In the procedure
Chua, Ian Y. H. Civil and Structural Engineering Resource Web. 29 Jan. 2000. 2 Mar.
Each and every piece is conceptualized with designer and a full scale drawing. A prototype is made to finalize the templates before the actual production is commenced. All the furniture is made using traditional joinery, where each piece of furniture is independently fitted and joined to provide with the coordinated greater strength. All the fine details are hand-carved, distinguishing it from assembly line furniture. Each piece of furniture is treated like a piece of art with several long processes before it is finally ready. The wood is sanded properly to bring out its inner beauty and the stunning grain structure. The grains in the wood react with the stain to give the furniture a natural look. We use water-based stains to stain the wood. There is no total destruction or clouding to cover the original grains. In the final finish, we use natural organic ingredients such as shellac dissolved in denatured alcohol and apply it on the surface of the wood. In the end, we finally hand- rub the surface with oil to give an incrustation and protection which gains an gracefully beautiful as it ages.