EQUIPMENT FOR HIGH GRATING OF BRIDGE PIERS BUILDING Russian patent published in 2005 - IPC

FIELD: bridge building, particularly for construction of bridge piers with high grating in deep water areas, subjected to freezing-up and ice drifting.

SUBSTANCE: equipment comprises support structure including leading piles with cross-bar secured to them and case having guiding means for pile driving fixed in design position on support structure. Case comprises upper and lower layers. Lower layer is made as tubular guiding means system joined by rigid ties and metal shell enclosing above guiding means. Number of tubular guiding means is equal to number of piles. Upper layer is collapsible vessel with upper beams, waterproof removable side sections and bottom rigidly connected to lower layer and having orifices for tubular guiding means receiving. Removable side sections are connected one to another and to bottom through sealing means. Upper beams are provided with rests for connecting thereof with support structure cross-bar and with suspensions. Suspension tops are secured in rests, bottoms thereof are provided with fixers brought into contact with edges of shell and tubular guiding members.

EFFECT: reduced material consumption and labor inputs, improved ecological safety.

4 dwg