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dynamic vertical load crane girder error prokon

Contact Info

Name:Wendy
Company:WEIHUA Group
Tel: +86-15838256284
Email: [email protected]
WhatsApp: +86-15838256284
Fax: +86-371-55680119
Address: West Weihua Road, Changyuan, Henan Province,China

Summary

The program supports several classes of cranes, multiple steel sections, capping sections, and multiple cranes on a single girder. It calculates the envelopes for all the required design forces (inlcuding vertical loads and horizontal effects of the moving cranes), moments […]

dynamic vertical load crane girder error prokon

The program supports several classes of cranes, multiple steel sections, capping sections, and multiple cranes on a single girder. It calculates the envelopes for all the required design forces (inlcuding vertical loads and horizontal effects of the moving cranes), moments and deflections.The design output includes deflection, bending moment

Crane Gantry Girder Design: Default example

Crane step size (m) Dead Load factor Live Load factor Combined Load factor Minimum spacing between cranes (m) Fixity left Fixity right No of output positions /span Y 206e6 75 1 0.2 1.4 1.6 1.4 0 Pinned 20 Dynamic load factors Deflection limits Class Vertical Horizontal surge Misalign-ment Skewing L/d vertical L/d Horizontal 1 2 3 4

Crane Girder Design Crane Girder Details Proper detailing is the key to good fatigue performance The vast majority of crane girder performance issues occur at the crane girder to column connection. 3 4 Column or Bracket Support • Do not use framed or clip angle type connections. • Extend bearing stiffeners the full height of the girder

According to rigidity requirements laid out by OSHA and ANSI the following maximum values for the deflection of the crane girder must normally not be exceeded in order to avoid undesirable dynamic effects and to secure the function of the crane: Vertical deflection is defined as the maximum permissible deflection ratio allowed for a lifting

The forces imposed on the girders by the crane are in part caused by the behaviour of the crane itself, especially in regard to the vertical and lateral stiffness of the girder. The transfer of the crane wheel reactions to the crane runway girder induces a complex pattern of stresses in the upper part of the girder and leads to early service

Runway Girders in the Vertical and Longitudinal Direction Typical· Details for the end Support of Runway Girder in the Lateral Direction Typical Details for the End Support of the Walkway (surge) Plate in the Vertical and Lateral Direction Typical Types of Column for Crane Runways

Structural Analysis Solutions – PROKON – CADD Emirates

The Crane Gantry Girder Design module can be used to design and optimise multi-span crane gantry girders with one or two cranes. Girders may be continuous or simply supported. The program supports multiple combinations of main beams and capping beams, including standard I-sections, plate girders and box girders.

What dynamic lift factor should I apply to this load to account for the uncertain dynamic effects? I have refered to the Crane design code for my region and have found load factors to vary between 1.1 to 2.2, depending on the fundamental frequency of the cage and the lift velocity.

The program supports several classes of cranes, multiple steel sections, capping sections, and multiple cranes on a single girder. It calculates the envelopes for all the required design forces (inlcuding vertical loads and horizontal effects of the moving cranes), moments and deflections.The design output includes deflection, bending moment

Crane step size (m) Dead Load factor Live Load factor Combined Load factor Minimum spacing between cranes (m) Fixity left Fixity right No of output positions /span Y 206e6 75 1 0.2 1.4 1.6 1.4 0 Pinned 20 Dynamic load factors Deflection limits Class Vertical Horizontal surge Misalign-ment Skewing L/d vertical L/d Horizontal 1 2 3 4

Crane Girder Design Crane Girder Details Proper detailing is the key to good fatigue performance The vast majority of crane girder performance issues occur at the crane girder to column connection. 3 4 Column or Bracket Support • Do not use framed or clip angle type connections. • Extend bearing stiffeners the full height of the girder

Understanding Overhead Crane Deflection and Criteria – Spanco

According to rigidity requirements laid out by OSHA and ANSI the following maximum values for the deflection of the crane girder must normally not be exceeded in order to avoid undesirable dynamic effects and to secure the function of the crane: Vertical deflection is defined as the maximum permissible deflection ratio allowed for a lifting

The forces imposed on the girders by the crane are in part caused by the behaviour of the crane itself, especially in regard to the vertical and lateral stiffness of the girder. The transfer of the crane wheel reactions to the crane runway girder induces a complex pattern of stresses in the upper part of the girder and leads to early service

Runway Girders in the Vertical and Longitudinal Direction Typical· Details for the end Support of Runway Girder in the Lateral Direction Typical Details for the End Support of the Walkway (surge) Plate in the Vertical and Lateral Direction Typical Types of Column for Crane Runways

The Crane Gantry Girder Design module can be used to design and optimise multi-span crane gantry girders with one or two cranes. Girders may be continuous or simply supported. The program supports multiple combinations of main beams and capping beams, including standard I-sections, plate girders and box girders.

What dynamic lift factor should I apply to this load to account for the uncertain dynamic effects? I have refered to the Crane design code for my region and have found load factors to vary between 1.1 to 2.2, depending on the fundamental frequency of the cage and the lift velocity.