types of rcc bridges

%PDF-1.2 The cables transfer the loads into compression in the two towers. The concrete elements used in beam bridges may be reinforced, prestressed or post-tensioned.Arch bridges were built by the Romans and have been in use ever since. /Filter /FlateDecode The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. Here are all types of bridges. /Title (Microsoft Word - bridges.doc) The concrete elements used in beam bridges may be reinforced, prestressed or post-tensioned. H��WYo7~ׯ࣍d)^��S�� … They consist of fewer cables and the height of the towers is much greater than suspension bridge.A cantilever bridge is formed of cantilevers projecting from supporting piers. stream 2. Truss is the oldest form of modern bridge design. The type is based on a number of factors including hydraulic, upstream elevation, and roadway height and other conditions. << Deck truss railroad bridge that extends over the Erie Canal is one of the many famous truss bridges. << Truss is used because it is very rigid structure and it can transfer the load from a single point to much wider area.In suspension bridge, the deck slab is suspended using ropes, chains or high tensile strength steel cables. They are often chosen for their strength and appearance. usually, this type of bridge can span 2000 – 7000 feet.Cable-stayed bridges are similar to suspension bridges as they also use cables but in different form. For long spans and deep valleys and at places where it will not be practicable to use centering, cantilever bridges are more suitable. MULESH K. PATHAK (M. E. CASAD) LECTURER IN APPLIED MECHANICS DEPARTMENT . Arch bridges can be built from various materials, including wood, stone, concrete, and steel.The superstructure of truss bridge is constructed by using trusses which are comprised of many small elements forming triangular trusses. The anchors are made from solid concrete blocks. /Creator (http://www.fineprint.com)

Beam bridges are usually constructed of RCC or steel or a combination of both RCC and Steel.

GOVERNMENT POLYTECHNIC, VALSAD- 396001 . Type Maximum span 1 RCC arch bridge 200 m 2 RCC bow-string girder bridge 45 m 3 RCC cantilever bridges with balanced type 30 m 4 RCC continuous bridge 45 m 5 RCC deck type girder bridge 20 m 6 RCC filled spandrel fixed arch bridge 35 m 7 RCC open spandrel rib type bridge 60 m 8 RCC … The obstacle to be crossed may be a river, a road, railway or a valley. In other words, bridge is a structure for carrying the road traffic or other moving loads over a depression or obstruction such as channel, road or railway.Beam bridges are the simplest bridge type normally consists of one or more spans, supported by abutment or pier at each end. Type Sub-type Length range Image Longest span Longest total Arch bridge: Arch bridge Through arch bridge: Beam bridge: Log bridge (beam bridge) Cavity wall viaduct: Bowstring arch: Box girder bridge: Cable-stayed bridge: 1104 m (Russky Bridge) Performance of RCC Box type Superstructure in Curved bridges . Truss bridges came to be commonly constructed from the 1870s to the 1930s. endobj 1 0 obj �!%�b�.0�Ǟ(Ő�B�R�� Bt�J"-��!��F�g]�fD?1溮χS�� T:[�0�MhL}��+�\Եð+��P�fV��ۯ��wdm 1c�)��ڵ�I��&z3.��z\+~��v�^k��Jb��ږ`k��ګ��(2^�� The construction of a cantilever bridge may either be of simple type or of balanced type. Beam bridges are the simplest bridge type normally consists of one or more spans, supported by abutment or pier at each end.

/Producer (pdfFactory v1.34 $Windows 98$) 13.3) i) Two hinged arch . They are suitable in case of uneven settlement of foundation. The ends of a cantilever bridge are treated as fixed. A bridge is a structure providing passage over an obstacle without closing the way beneath. >> >> ��No0P�:b��,(j��\�\)��MK��Ѹ��FjL!� H0&��s��5(č>�\��>�S{M9��ѥ��Z�cFD��:�m�V�.�d�Z��퇼#�ԏ�e߰��wC�{d�gC�޼��Ǻ��$�}�X.gG�r%~?��h��ɻ>�7]O 3�(D �A! ii) Through type . It is the shape of the arch that gives the bridge its strength, which is reinforced by placing supports, or abutments, at its base. Types of Arch Bridges: The arch bridges may be classified from two considerations as below: (a) Location of deck with respect to the arch rib (Fig. Beam bridges are usually constructed of RCC or steel or a combination of both RCC and Steel. %�� For more on this bridge type, go through Truss bridge design and types. iii) Semi-through type (b) Structural arrangement of arch rib (Fig. These bridges are manufactured from a standard structural plate or deep-corrugated structural plate. A cantilever bridge combines the advantages of a simply supported span and a continuous span.