Lifting Beam Design Example

May 2016 lrfd bridge design 8 1.

Lifting beam design example.

Design of adjustable spreader lifting beam of standard profile heb series geometry of lifting at the each end of the hollow pipe spreader beam solved using the equations of static equillibrium a strength design design for flexural bending stress selecting the section initially based on this. Lifting gear used appear. Verification of spreader beams lifting beams and lifting frames. Shackles are used to connect the lines to the lifting beams.

Spreader beams are universally applied gear which is widely used in various types of lifting operations onshore and offshore. It covers all aspects of the selection design manufacture verification testing repair modification storage inspection and safe use of lifting beams and spreader beams. 4b this is but a small sample of lifting beam possibilities and their applications. Variations in the design of the multi lift spreader bar evolve over a period of time as requirements and technology change and the demand for a more efficient product is desired.

When lifting and carrying precast elements the lifting load has to be multiplied by the f factor. We would like to show you a description here but the site won t allow us. How to design a spreader bar. Spreader beams lifting beams lifting spreader frames.

Sparta s approach to optimizing the spreader bar design otherwise known as lifting bar or lifting beam is an iterative process. Lifting factor f is the acceleration factor. Class is determined by the selected lifting system for example class h1 for a bridge crane class h4 for a. The table of contents next page lists the sections covered and contains links to each section.

Conceptual design and design examples for multi storey buildings. Shackles come in various patterns and capacities and typical examples are shown in figs. The design of lifting beams must meet specific calculation requirements per bth 1 to verify that the design will be safe and effective for its intended below the hook lifting application. Pdf a review.

Other elements commonly associated with lifting beams are hooks shackles chokers and slings. By using bth 1 for designing lifting beams the different failure modes of the beam will be addressed and appropriate safety factors will be applied to the. Lifting operations and lifting equipment regulations 1998 loler.