Design of below the hook lifting devices pdf

Also, since 1989 asme undertook the task of formalizing below the hook lifting devices. While all below the hook lifting equipment manufactured by bradley lifting is custom engineered for a specific application, a number of the lifters may be categorized into the product groupings listed below. These devices can come in several forms, including structural and mechanical lifting devices, vacuum lifting devices, close proximity operated lifting magnets, remotely operated lifting. The new edition, released as asme bth12017 design of below the hook lifting devices, updates and supersedes the 2014 version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of below the hook lifting devices. The provisions in this standard apply to the design or modification of belowthehook lifting devices. Com pliance with requirements and criteria that may be 14. Below the hook lifting devices tristate overhead crane.

They are designed to make your work easier but, like any good rigging. Below the hook lifting devices shall be marked with at least. Tristate crane and hoist is a leader in the design and manufacturer of below the hook lifting devices and industrial lifting equipment. Due to changes in design, advancement in techniques, and general interest of labor and industry. Pdf asme bth 1 2017 design of below the hook lifting devices. Asme bth12008 design of below the hook lifting devices. Draft april 2014 bth 1 20xx proposed revision of asme bth1. Spreader bars and other specialized below the hook lifting devices must be constructed, inspected, installed, tested, maintained and operated according to the requirements of asme b30. The asme bth1 standard for the design of below the hook lifting devices has been revised.

This the 20 revision add eds requirements for personnel competence, operating controls. Special custom design grabs, hooks, clamps, or other lifting accessories, for such units as modular panels, prefabricated structures and similar materials, shall be marked to indicate the safe working. This helpful and practical volume is intended as a supplement to asme b30. Though section d5 is routinely applied to things such as lifting lugs, this was really not the intended use. This style of lifting beam can be utilized where headroom is limited and comes with a pair of swivel hooks and three standard spreads 3 and 4 beams have two standard spreads. Requirements for belowthehook lifting devices, slings, and. In the 2010 edition, maintenance was made mandatory, definitions were revised and other changes were made to improve clarity.

This document gives guidance on selecting the appropriate safety factor or design factor as it is referred to in bth1. They can be structural mechanical lifting devices, vacuum lifters, magnets, and grapples. An overview of asme bth1 spreader bars and lifting beams when planning to design lifting beams or any other below the hook lifting devices, there are many aspects that must be considered beyond finding materials that meets a few basic engineering calculations. Bushman equipment has a long history of product leadership in the design and manufacture of rugged, builttoorder material handling equipment for use in a variety of highcapacity, highduty cycle industrial applications. Cold temperature considerations and below the hook lifting products. Below the hook lifting devices while all below the hook lifting equipment manufactured by bradley lifting is custom engineered for a specific application, a number of the lifters may be categorized into the product groupings listed below. Our goal is to design lifting equipment that increases your productivity and provides your personnel with a safe method of handling your product.

Asme bth12008 revision of asme bth12005 design of belowthehook lifting devices an american national standard. The engineer will perform all required calculations per the asme bth12011 standard the standard for the design of below the hook lifting devices. Lifting devices designed to this standard shall comply with asme b30. Together with our manufactured slings and rigging hardware, liftmax lifting devices can make any lift. This qualifies as a below the hook lifting device and should follow the design recommendations in asme bth1 design of below the hook lifting devices. The safety and health department has recognized incident trends relating to below the hook lifting devices. Asme bth12008 revision of asme bth12005 design of below the hook lifting devices an american national standard. Within each type of lifting device are many variations that show the breadth and depth of our experience.

Belowthehook lifting devices july 2017 draft revisions. Selecting the proper below the hook lifter for the job and knowing its limitations is critical. Model 415 a spreader beam with plate hooks to engage a shaft or mandrel, used primarily for handling paper rolls. Asme bth12014 revision of asme bth12011 design of belowthehook lifting devices an american national standard two park avenue new york, ny 10016 usa.

Rigging is the primary form of bth lifting devices which include but are not limited to. Asme bth1 provides detailed information on the design criteria of below the hook lifting devices. In business for over 45 years and with thousands of lifting devices in operation, we have a deep knowledge of millduty lifting equipment and the experience to deliver material handling solutions with unmatched levels of productivity. Below the hook lifting devices was first published in 1985, new editions were published in 1993, 1999, 2003, and 2006. We design and engineer full below the hook lifting systems, including automatic, hydraulic, pneumatic and motorized lifting equipment, jhooks, spreader beams, chooks, and mobile lifters. Design of below hook lifting devices structural engineering. It covers provisions for specified rated loads, load geometry, design category, and service class, which users are to adhere to during the design of any below the hook device. Added welding requirements conforming with aws d14.

Mar 23, 2017 asme bth12017 calls for lifting devices to be designed by, or under the direct supervision of, a qualified person. This standard serves as a guide to designers, manufacturers, purchasers, and users of below the hook lifting devices. If its a below the hook lifting device, it follows asme b30. Design of belowthehook lifting devices bth1 asme on. This standard sets forth design criteria for asme b30. Asme bth12008 design of belowthehook lifting devices. The provisions in this standard apply to the design or modification of below the hook lifting devices. In accordance with design requirements, the responsible engineer may invoke ansi n14. It is extremely important to recognize what is required by osha 1910 and 1926 regulations to properly execute these designs to keep from putting your company in a nonosha compliant. Draft april 2014 bth 1 20xx proposed revision of asme bth. B thehook equipment spreader beams avon engineering. In the below the hook lifting world there are two main standards that you should familiarize yourself with if youre purchasing or designing an engineered below the hook lifting device. Asme bth12011 revision of asme bth12008 design of below the hook lifting devices an american national standard three park avenue new york, ny 10016 usa. All below the hook lifting devices shall be operated in accordance with the latest edition of asme b30.

In the 2010 edition, maintenance was made mandatory, definitions. Here are some quick facts you need to know about below the hook lifting devices. In addition they may attach, hold, protect, control and orient the load in the material flow process. Along with stress, buckling is also a critical factor in lifting beams that must be addressed in detail to ensure that the. Asme bth12011 is the equipment design standard companion to asme b30. This standard requires specific design factors based off operational conditions. Below the hook lifting devices cincinnati crane and hoist. You will find the presentation pdf, video, and transcription of the webinar below. Pdf manual handling of heavy objects is a common cause of injury in. Modern steel construction steel questions or comments to. Mar 16, 2018 an overview of asme bth1 spreader bars and lifting beams when planning to design lifting beams or any other below the hook lifting devices, there are many aspects that must be considered beyond finding materials that meets a few basic engineering calculations. Osha 5 to 1 factor of safey structural engineering. Lifting magnet design abstract show below hide below describes minimum structural and mechanical design and electrical component selection criteria for asme b30.

Commonly referred to as a lifter, a below the hook lifting device attaches a load to a hoist. Requirements for belowthehook lifting devices, slings. We can help you maximize your cranes payload with lower tare weights because we have proven designs for durable, heavy duty material handling equipment. Asme bth12011 revision of asme bth12008 design of belowthehook lifting devices an american national standard three park avenue new york, ny 10016 usa. The following requirements apply to below the hook lifting devices, such as spreader bars, lifting yokes, lifting baskets, and lift fixtures. Five basic spreader beam models are available in many different design configurations. Chapter 41 requirements for below the hook lifting devices, slings, and rigging hardware and accessories. Bth1 design of belowthehook lifting devices 2017 asme. Due to changes in design, advancement in techniques, and general interest of labor and industry in safety, the sectional committee, under the joint sponsorship of asme and the naval.

Custom below the hook lifting devices bradley lifting. January 25, 2012 the next edition of this standard is scheduled for publication in 2014. Asme bth12017 design of belowthehook lifting devices. This standard has been developed in response to the. This webinar was originally recorded on september 28, 2016. Lifting devices, sometimes called below the hook lifters, attach hoists to their loads. Innovative thinking and value engineering create material handling products that have long, safe, productive lives. Asme bth1 is the equipment design standard companion to asme b30. Mar 15, 2017 lifting devices designed to this standard shall comply with asme b30. Below the hook lifting devices osha says very little about below the hook lifting devices in any standard. J10018 below the hook lifting devices has been added to your cart.

Bth1 provides minimum structural and mechanical design and electrical component. Pdf design of belowthehook lifting devices sasikumar. The requirements in this volume also apply to clamps used for positioning and anchoring. Supplied with a pair of shackles and one standard spread. Most companies find their needs for such below the hook lifting devices also called under the hook lifting devices to be unique and require one off designs. Additional marking, when required, shall be noted on the tandemloc drawing. With over 50 years experience and thousands of devices in operation we have the expertise to help with the largest mill duty lifting devices down to smaller ergonomic lift assists. What makes my belowthehook lifting device osha compliant. Engineering matters below the hook lifting devices. Pdf asme bth 1 2017 design of below the hook lifting. This standard has been developed in response to the need to provide clarification of the intent.

Asme bth12017 design of belowthehook lifting devices is for b30. Engineering matters below the hook lifting devices below the hook lifters are those helpful pieces of equipment that provide a connection point between the crane and the load being lifted. Below thehook lifting devices or chain hoists are really convenient. Pdf design and construction of a mobile belowthehook lifting. Specifically, asme bth1 provides minimum structural and mechanical design and electrical component selection criteria for asme b30.

Compliance with requirements and criteria that may be unique to specialized industries and environments is outside the scope of this standard. Many times, the device does not meet the customers required capacity because they did not take the design factor. This standard serves as a guide to designers, manufacturers, purchasers, and users of belowthehook lifting devices. Model 4 a spreader beam with formed hooks for use with slings. Provides minimum structural and mechanical design and electrical component selection criteria for asme b30. This chapter outlines the requirements for designing, fabricating, operating, testing, inspecting and documenting of belowthehook lifting devices fabricated in.

The focus of this bulletin is to highlight some of the common uses of below the look lifting devices during steel erection and reinforcing steel activities and some of the basic, governing standards. Note that the capacity is dependent on the service class, predictability of the loads applied, and whether severe environmental conditions are. I hope this article clears up some of the confusion between design category and service class. Below the hook lifting devices a below the hook bth lifting device is classified as a device used for attaching a load to a hoist. Hsslb short span lifting beam plate style features this style of lifting beam is ideal for short span applications and can be utilized where headroom is limited. Decals of self adhering vinyl are used to mark both sides with the work load limit wll, and the tandemloc logo.