Civil Insight: A Technical Magazine Volume 2 | Page 67

CIVIL INSIGHT 2018 PROJECTS 67 SECOND-YEAR PROJECTS (BATCH OF 2016) DEMONSTRATIVE MODEL OF UN PARK TRUSS BRIDGE Group Members: Prajwol Acharya, Ajay Ghimire, Biplaw Bhujel, Prawal Keshar Khatri, Kamal Tolangi Rai, Pratap Bikram Shahi, Anish Shakya Supervisor: Er. Nitesh Shrestha A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements usually forming triangular units. The connected elements may be stressed from tension, compression, or sometimes both in response to dynamic loads. UN Park Truss Bridge is a small pedestrian bridge that falls under the category of “Pratt Truss Bridge.”It is built over the Bagmati River, which provides a pass for people through UN Park to Buddhanagar. The bridge is located at 27°68’ latitude and 85°32’ longitude. The bridge has a span of 108.268ft (33m) and a height of 11 ft (3.3528m) above the river. Timber was used to build the truss bridge, its element were fastened by nails. The model was reduced in distorted scale. DEMONSTRATIVE MODEL OF AKASHI-KAIKYO Group Members: Rijul Kaji Kasaju, Aaryan Koirala, Manisha Dulal, Aadarsh Ram Shrestha, Pratima Baramle Supervisor: Er. Manish Prakash Suspension bridges are those in which the weight of the deck is supported by vertical cables suspended from further cables that run between towers and are anchored in abutments at each end. Any load applied to the bridge is transformed into tension in these cables and anchorages alongside compression at the tower foundations. Akashi-Kaikyo has three spans: The central span is 1,991 m (6,532 ft; 1.237 mi), and the two other sections are each 960 m (3,150 ft; 0.60 mi). The bridge is 3,911 m (12,831 ft; 2.430 mi) long overall.The two main supporting towers rise 282.8 m (928 ft) above sea level. The model built was in distorted scale for a vivid view of width of deck while limiting the length along the bridge axis. DEMONSTRATIVE MODEL OF SYDNEY HARBOR BRIDGE Group Members: Saurav Ghimire, Roshan Khatri, Tribhuvan Khatri, Subash Koirala, Amit Nepal, Dhruba Pokharel Supervisor: Er. Kameshwor Sahani The Sydney Harbour Bridge is a steel-through-arch bridge across Sydney Harbour. It is a steel arch spanning the harbour between Milson’s Point on the north side and Dawes Point on the south side. It is nicknamed ‘The Coat-hanger’. The basic principle concerns Pin and Hanger arrangement. A pair of large steel pins through the plates and girder webbing provide the hinges, holding up the suspended span while allowing it to move longitudinally. Primarily, timber was used for the construction of its model. A layout of the bridge was printed on A 0 paper, and a ply was cut according to the bridge outline. It was built in a distorted scale due to large variation in dimension of its different elements.