SCREW CONNECTION OF THE PORTAL STRUCTURE RIEGEL BLOCK GROUP Russian patent published in 2017 - IPC E04C3/08 E04B1/38 

FIELD: electricity.

SUBSTANCE: screw connection of the portal structure riegel block group comprises direct-axis angle sections and its jointing elements, comprised of steel with a view to apply the maximum extending and pressure load to them, with the generating of the needed clearances among angle sections ends and a camber. Along with this, all the jointing elements are situated within the angle sections insides. The angle sections jointing is accomplished by means of the round plugs that are fixed against the internal legs of angle sections with the use of the double longitudinal welds with supplying their coaxiality at the junction sides and with inconsiderable displacement outwards the angle sections, of bending tension pins that are positioned in plugs with the contact washers mounting that have cone ratio and thickening in the top angle sections among plugs, square washer with one truncate angle among plugs and nuts and double nuts fixation.

EFFECT: simplification and cheapening of works on production the riegel block group and jointing elements at the manufacturing factory, absence of necessity in complex equipment application and in high qualified staff, absence of necessity in drilling work of a great many holes to a high precision, materials saving by virtue of deficiency of direct-axis angle sections freeness by trim and wimbling, reliability improvement based on the capability of all riegel elements zinking and accessibility of quality performed control at all levels.

7 dwg