Title
Modified method of Prestressing Steel Trusses by inducing Lack of fit: A novel method of Optimizing / Economizing Steel Truss De,Used
Delivery time: 8-12 business days (International)
Trusses are the most common steel structures generally adopted for railway bridges, industrial buildings etc. The quantity of steel used in these structures is very high. Increased quantity of steel increases the cost of the structure. In general, prestress involves the imposition of stresses opposite in sign to those which are caused by the subsequent application of the working loads. The technique of prestressing can be adapted to steel trusses by inducing lack of fit. This work aims at showing that an iterative procedure can identify the member and the amount of lack of fit in that member that results in reduced member forces in the truss. Methodology is illustrated with the help of a typical example. A truss subjected to an external load is analyzed for different magnitudes of lack of fit in each member. The case with minimum sum of compressive and tensile forces is identified so that the sum of the forces obtained due to external loads and the forces obtained after prestressing are less than the forces obtained due to external loads. Hence the corresponding cross sections required is also less comparatively there by resulting a considerable saving in steel quantity.
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⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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