2023 - Page 2 of 3 - Overhead Crane Double & Single Girder Calculation

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Calculation of Rope Drum for Overhead Cranes

## Introduction Calculation Online : When it comes to the performance of wire rope in a machine, the design of its sheaves and drums plays a crucial role. In this article, we will explore the important factors to consider when designing sheaves and drums for wire ropes used in overhead cranes. We will also discuss various technical aspects of wire ropes, such as measurement of diameter, ...

By Saeid Kamarkhani

July 20, 2023

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The Ultimate Guide to Calculation Methods for Girder Overhead Cranes

## Introduction to Girder Overhead Cranes Calculation Overhead Crane Online Girder overhead cranes play a vital role in various industries, allowing for efficient lifting and moving of heavy loads. These cranes consist of a bridge, known as a girder, which is supported by end trucks and moves along a runway beam. To ensure the safe and effective operation of these cranes, accurate calcul...

By Saeid Kamarkhani

July 20, 2023

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Calculation Overhead Crane: A Comprehensive Guide to Design and Analysis

## Introduction Overhead cranes are essential machines used in various industries for lifting and maneuvering heavy loads. The design and analysis of overhead cranes involve several critical calculations to ensure safe and efficient operation. This comprehensive guide will delve into the intricacies of calculating various aspects of overhead cranes, including wheel loads, deflection, and design...

By Saeid Kamarkhani

July 20, 2023

Calculation Crane: A Comprehensive Guide to Overhead Cranes

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Calculation Crane: A Comprehensive Guide to Overhead Cranes

Introduction Overhead cranes play a crucial role in various industries, providing efficient and safe material handling solutions. Among the different types of overhead cranes, the calculation crane stands out for its versatility and ability to perform complex lifting tasks. In this comprehensive guide, we will delve into the world of calculation cranes, exploring their features, applications, and...

By Saeid Kamarkhani

July 20, 2023 July 20, 2023

Crane Runway Girder Design Example (ASD)

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Crane Runway Girder Design Example (ASD)

Example 14.1.1—Crane Runway Girder Design Example (ASD) Given: Use ASCE/SEI 7-16 to design an ASTM A992 W-shape runway girder for a CMAA Class B crane. Assume no reduction in allowable stress due to fatigue. The design parameters are: Type of control: cab-operated Crane capacity = 20 tons (40 kips) Bridge weight = 57.2 kips Combined trolley and hoist weight = 10.6 kips Maximum wheel load (...

By Saeid Kamarkhani

July 16, 2023

Figure 7‐5 This is a close‐up view of Figure 7‐4. The arrow points to the end of the crack. The crack is propagating toward the bottom flange of the girder. Cracks in the bottom flange of a girder can cause a catastrophic girder failure.

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calculation Stress girder Overhead Crane

To calculate the stress in an overhead crane girder, you will need to consider the following factors: 1. Dead Load: This is the weight of the girder itself, including any attachments and accessories. The dead load is a constant and can be easily calculated based on the material weight and dimensions of the girder. 2. Live Load: This is the weight of the crane and the load it carries. The live lo...

By Saeid Kamarkhani

June 20, 2023

calculation joint plate girder Overhead Crane

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calculation joint plate girder Overhead Crane

Certainly! The calculation of joint plates for a girder typically involves determining the size and thickness of the plate required to transfer the stresses at the joint between the girder and another structural member, such as a column or beam. Here are the general steps for calculating joint plates for a girder: 1. Determine the load conditions and stresses at the joint. This includes the magn...

By Saeid Kamarkhani

June 20, 2023

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Crane Terminology

ADJUSTABLE FREQUENCY DRIVE – A motor controller designed to convert fixed frequency AC power to available frequency power for AC motor speed control. The system is used in conjunction with a squirrel cage motor to control speed over a relatively wide, constant torque range, by maintaining a constant voltage / frequency ratio. This type of control “leashes” the in-rush current to deliver startup p...

By Saeid Kamarkhani

June 18, 2023 June 19, 2023

Figure 7‐3 Crane with an outrigger truss. The diagonal members are part of the truss that supports the platform, bridge machinery, and festoon track.

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Bridge Structure Inspections

Item Description Points of Interest for Inspection 1 Trolley rail bolted splices. Loose and missing splice bolts, check for improper hardware. Joint bar bolts have straight shanks to the head and are made per ASTM A449. Nuts are per A563 grade B. A325 bolts and nuts may also be used. Check/tighten splice bolts every 3 months. Fasteners should include a helical spring l...

By Saeid Kamarkhani

May 22, 2023 May 22, 2023

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Eye Self Locking Hook

An eye self-locking hook is a type of hook used for lifting and rigging heavy loads. It is designed with a self-locking mechanism that helps to prevent accidental disconnection of the load. The hook has a latch or locking mechanism that must be manually opened to insert or remove the load, and then closes automatically to secure the load in place. The "eye" in the name refers to the shape of th...

By Saeid Kamarkhani

May 13, 2023 May 13, 2023

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