Lifting Beam Design Example

May 2016 lrfd bridge design 8 1.

Lifting beam design example.

Class is determined by the selected lifting system for example class h1 for a bridge crane class h4 for a. Review on lifting beam for electric overhead travelling eot cranes. 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. How to design a spreader bar.

Pdf a review. We would like to show you a description here but the site won t allow us. Shackles are used to connect the lines to the lifting beams. 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 operations and lifting equipment regulations 1998 loler. 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. Shackles come in various patterns and capacities and typical examples are shown in figs. The table of contents next page lists the sections covered and contains links to each section.

Lifting factor f is the acceleration factor. Spreader beams are universally applied gear which is widely used in various types of lifting operations onshore and offshore. Verification of spreader beams lifting beams and lifting frames. Spreader beams lifting beams lifting spreader frames.

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. Lifting gear used appear. The lifting classes are described in din 15018. Other elements commonly associated with lifting beams are hooks shackles chokers and slings.

In this article we will explore the design of a basic spreader beam and see what design checks are needed to establish the suitability of a spreader beam for particular lifting operation. It covers all aspects of the selection design manufacture verification testing repair modification storage inspection and safe use of lifting beams and spreader beams. When lifting and carrying precast elements the lifting load has to be multiplied by the f factor.