ASME B30.29-2018 pdf – Self-Erecting Tower Cranes
ASME B30.29-2018 pdf – Self-Erecting Tower Cranes.
points of attachment; may also be called a stay rope, guy rope, or pendant.
structural competence: the ability of the machine and its components to withstand the stresses imposed by applied and dynamic loads.
superstructure: the portion of the crane above the slewing bearing.
swing mechanism: the machinery involved in providing rotation of the superstructure.
travel truck: the enclosure that houses the bogie.
trolley: the component of the crane that travels along the jib of a self-erecting crane and contains the upper load block
two-blocking: the condition when the lower load block or hook assembly comes in contact with the upper load block or trolley.
unattended: a condition in which the operator of a crane is not at the operating controls.
weathervaning: releasing of the swing brakes to allow wind-induced free rotation of a crane superstructure when out of service to expose minimal surface area to the wind.
wind area balance: the projected surface area that a jib presents to the wind when it is free to rotate in the wind and achieves directional equilibrium, i.e., aligns itself with the wind direction.
SECTION 29-0.3 PERSONNEL COMPETENCE
Persons performing the functions identified in this Volume shall meet the applicable qualifying criteria stated in this Volume and shall, through education, training, experience, skill, and physical fitness, as necessary, be competent and capable to perform the functions as determined by the employer or employer’s representative.
SECTION 29-0.4: REFERENCES
The following is a list of publications referenced in this
ANSI A14.3-2008, Safety Requirements for Ladders — Fixed
ANSI/ASSE A1264.1-2007, Safety Requirements for
Workplace Walking/Working Surfaces and Their
Access; Workplace Floor, Wall, and Roof Openings;
Stairs and Guardrails Systems
ANSI/SAE Z26.1-1996, American National Standard for Safety Glazing Materials for Glazing Motor Vehicles and Motor Vehicle Equipment Operating on Land Highways — Safety Code
Publisher: American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036 (www.ansi.org)
ANSI/AWS D1.1-08, Structural Welding Code — Steel
ANSI/AWS D14.3-05, Specification for Welding Earth- Moving and Construction Equipment
Publisher: American Welding Society (AWS), 8669 NW 36 Street, No. 130, Miami, FL 33166 (www.aws.org)
ANSI/NEMA ICS 2-2000, Industrial Systems
ANSI/NEMA ICS 18-2001, Motor Control Centers
Publisher: National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Suite 900, Arlington, VA 22209 (www.nema.org)
ANSI/NFPA 70-2008, National Electrical Code
Publisher: National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471 (www.nfpa.org)
ASME B30.9-2010, Slings
ASME B30.10-2009, Hooks
ASME B30.20-2010, Below-the-Hook Lifting Devices
ASME B30.23-2005, Personnel Handling Systems
ASME B30.26-20 10, Rigging Hardware
Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990 (www.asme.org)
EN 14439:2010, Crane-Safety — Tower Cranes
Publisher: DIN Deutsches Institut für Normung e. V., Am DIN-Platz, Burggrafenstrae 6, 10787 Berlin, Germany (www.d in .de)
ISO 7000, Graphical symbols for use on equipment1
ISO 7296-1, Cranes — Graphical symbols — Part 1: General
ISO 7296-2, Cranes — Graphical symbols — Part 2: Mobile cranes’
ISO 7296-3, Cranes — Graphical symbols — Part 3: Tower cranes1
Publisher: International Organization for Standardization
(ISO) Central Secretariat, Chemin de Blandonnet 8, Case
Postale 401, 1214 Vernier, Geneva, Switzerland
SECTION 29-1.1: SITE PREPARATION AND ERECTION
29-1.1.1 Crane Supports
(a) Crane supports for individual outrigger pads shall be level in accordance with the manufacturer’s specifications or those of a qualified person. Supports may be individual timbers, mats, or engineered structural supports to distribute the load so as not to exceed the allowable bearing capacity of the underlying material as determined by a qualified person.
(b) Consideration should be given to the length of time that the crane will be erected in one position and the likely deterioration of the ground or supports over time (e.g., timber deterioration, undermining by water or frost, drying out, adjacent excavations and trenches).
(c) All load-bearing structural supports and rail supports shall be designed and installed to support the crane loads.
(d) All excavations in the proximity of foundations, supports, and rail supports shall be evaluated and approved by a qualified person.
(e) Rails shall be attached to their supports in a manner capable of resisting the applicable horizontal loads determined by the manufacturer or by a qualified person.
D Splices in rail tracks (bolted or welded) shall have smooth joints.