ASME BTH-1-2014 PDF

The new edition, released as ASME BTH — Design of Below-the-Hook Lifting Devices , updates and supersedes the version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of below-the-hook lifting devices. Below-the-hook lifting devices, or devices used for attaching a load to a hoist, can contain components such as slings, hooks, and rigging hardware. They can be in the form of structural and mechanical lifting devices, vacuum lifting devices, operated close proximity lifting magnets, remotely operated lifting magnets, or scrap and material handling grapples. 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.

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The new edition, released as ASME BTH — Design of Below-the-Hook Lifting Devices , updates and supersedes the version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of below-the-hook lifting devices.

Below-the-hook lifting devices, or devices used for attaching a load to a hoist, can contain components such as slings, hooks, and rigging hardware. They can be in the form of structural and mechanical lifting devices, vacuum lifting devices, operated close proximity lifting magnets, remotely operated lifting magnets, or scrap and material handling grapples. 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.

In addition to design criteria, the standard addresses analysis methods for measuring allowable stresses, materials, welding designs and procedures, explanatory information including units of measure and other considerations. Ever since its initial publication in , ASME BTH-1 has undergone a periodic revision process, and each subsequent edition has possessed changes that improved upon the previous version. Some of these changes have been relatively minor, while others were more substantial, such as the addition of new chapters.

Furthermore, there are numerous editorial changes present in the standard. It is important to realize that the provisions defined in ASME BTH address the most common and broadly applicable aspects of the design of below-the-hook lifting devices.

Therefore, there may be design issues that are not explicitly covered in the standard. A qualified person is responsible for handling any specialized criteria. Your email address will not be published. This site uses Akismet to reduce spam.

Learn how your comment data is processed. An accompanying Nonmandatory Appendix with commentary for the new chapter has been added. Definitions of applied load s , dead load, load cycle, maximum stress, minimum stress, and rated load have been added. Definitions of load cycle, applied load s , dead load, rated load, rigging hardware, sling, maximum stress, and minimum stress have been deleted. Terminology for equalizing sheave, running sheave, electrical power supply, electric motor, externally powered electromagnet, master switch has been altered.

Definitions of shall and should, as well as the location where design factor, back-driving, L 10 bearing life, vacuum pad, brake, control system, rectifier, and sensor s are first used have been revised. Units have been added for: the distance from the edge of the pinhole to the edge of the plate in the direction of the applied load, the pin diameter, the shear plane locating angle for pinconnected plates, the effective area of the vacuum pad enclosed between the pad and the material when the pad is fully compressed against the material surface to be lifted, and the angle of vacuum pad interface surface measured from horizontal.

Nomenclature for h c , h p , M y , S xc , and S xt has been added. Nomenclature for F r , F yf , and F yw has been deleted. Nomenclature for n i , S u , S y , and F u has been revised. Design Category C Lifters have been added.

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ASME BTH-1-2017 – Design of Below-the-Hook Lifting Devices

Digital products are restricted to one per purchase. Become a member. The provisions in this Standard apply to the design or modification of below-the-hook lifting devices. Compliance with requirements and criteria that may be unique to specialized industries and environments is outside of the scope of this Standard. BTH-1 addresses only design requirements. As such, this Standard should be used in conjunction with B

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ASME-BTH-1-2014-1

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Design of Below-the-Hook Lifting Devices

View Larger Image. Ask Seller a Question. SME has been defining crane safety since The provisions in this Standard apply to the design or modification of below-the-hook lifting devices. Compliance with requirements and criteria that may be unique to specialized industries and environments is outside of the scope of this Standard.

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