FIELD: mechanical engineering; tower cranes.
SUBSTANCE: proposed lattice beam has members of beam side limited by upper longitudinal rib 2 and lower longitudinal rib 3 and compressed rods 14 perpendicular to longitudinal ribs 2, 3, stretched inclined rods 17 of smaller length, each connecting top 15 of one of compressed rods 14 with lower longitudinal rib 3, and other stretched inclined rods 19 of larger length, each connecting top of one of compressed rods 14 with lower longitudinal rib 3 in point 20 shifted forward relative to base of following compressed rod.
EFFECT: improved design of lattice beam.
6 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TOWER CRANE LOAD-LIFTING BOOM MEMBER | 1998 |
|
RU2215684C2 |
| MOUNTER FOR DETACHABLE JOINT OF TOWER CRANE ARM COMPONENTS | 2004 |
|
RU2336220C2 |
| LATTICED CONSTRUCTION MEMBER | 0 |
|
SU1760043A1 |
| TRUSS FROM ORTHORHOMBIC PIPES (ROLL-WELDED PROFILES) | 2013 |
|
RU2548301C1 |
| PORTAL TOWER CRANE | 2008 |
|
RU2361805C1 |
| HOISTING CRANE, IN PARTICULAR, OVERHEAD OR GANTRY CRANE CONTAINING CRANE BEAM, AND METHOD OF CRANE BEAM INSTALLATION ON HOISTING CRANE | 2013 |
|
RU2596204C2 |
| DEVICE FOR CONNECTING FIXED FRAME TO LATTICED TOWER OF TOWER CRANE | 1999 |
|
RU2244673C2 |
| MOVING BALLAST FOR PORTABLE TOWER CRANE | 2007 |
|
RU2423314C2 |
| CRANE CARRIAGE SAFETY DEVICE | 2006 |
|
RU2394748C2 |
| LIFTING CRANE AUTOMATICALLY FOLDING BOOM | 1992 |
|
RU2083473C1 |
