Some Common Overhead Crane Hazards Tips to Help Avoid Them

Some Common Overhead Crane Hazards and Tips On How to Prevent Them

Preventing Overhead Crane Hazards: In any type of industry, the coming together of anticipation and pro-actively handling problems is something, which does result in greater success than just reactively responding to incidents. If an individual works in the world of construction and manufacturing, there are hazards always present at job sites, but with proper training and preparation ahead for them, a lot of issues can be prevented.

In order to keep all those involved safe, all operators and workers need to understand the most basic of all safety hazards, and how to recognize any of them right away. Please read on to learn more about the many potential risks that are a part of overhead cranes and the accompanying preventable measures.

Potential Electrical Hazards

About 50% of all crane accidents that happen overhead can be attributed to machinery coming into contact with a power source of some kind during operation. Typically, why this occurs is because, as a crane moves materials close to or beneath energized power lines, the hoist line or boom gets into contact with the electrical source. This is an issue, which is about half of all hazards that are associated with these overhead cranes, and it can be stopped with good safety planning.

Safety planning that is effective can be done before the cranes even get to the worksite. It is important to establish who will be in charge of any and all pre-job safety. Every danger zone should be clearly marked, and this does specifically apply to, the 10-foot radius of all power lines of the entire area. The whole area should be considered to be an unsafe working place from the get go. The 10-foot radius can be marked with barriers, fences, taping, etc. to give clear visual clues for all workers.

In addition to this, make sure to ask electrical companies to de-energize or to ground any existing power lines when there are individuals working in close proximity to them. However, until specifically informed by the electrical company, all operators should assume that all power lines are energized and extremely dangerous. A final preventative measure is to make sure all ladders, tools, and other systems being used on the work site aren’t at all conductive.

Crane Overloading

When a crane exceeds over its operational capacity, it can also prove to be the very thing, which tends to cause about 80% of all crane accidents and structural failures as well. The overloading of the crane’s operational capacity is caused by some of the following:

  • The presence of swinging or a sudden dropping of any load
  • Any defective components
  • The hoisting of a load that is beyond its normal capacity
  • The dragging of a load
  • Whenever side-loading a boom

A lot of these mistakes are the result of predictable human error. The formal training for operators should have a working knowledge of some key points, and any conditions where stated lifting capacities happen to be valid. Some of these key points are crane load charts and lifting capacities. Operators shouldn’t just rely on instinct or experience to decide if weight load is correct.

Any Materials Falling

One of the best ways to lessen the chance of any materials falling down from cranes is clear. It is to make sure to perform regular maintenance of hoists. An example of this is to do load testing maintenance to ensure that you know how many pounds a hoist can handle exactly. It also will provide an accurate indication of just how well the hoist is functioning currently. Another way to reduce the chance of mechanical failure is by performing inspections of the crane each day. If, and when, a potential problem is identified by the operators, they need to make sure to implement the lockout/tag-out procedure.

Though it may be obvious, what should be clearly stated is this, that workers need to always wear the proper head, foot, hand, and eye protection while working on the job site itself. They also need to be constantly aware of what is going on in their surroundings. They don’t want to accidentally go walking beneath a suspended load at any time.

Here at TNT Crane Service, Inc., we always make sure to put safety and prevention first. It is our number one priority. Because of this fact, we ensure that all the machines we have are kept well maintained and up to date. What this does is ensures that you will be getting the most effective, as well as, the most reliable equipment that is available. Please view the equipment that we have on hand for sale or rental today. It may help you to find the crane that you require for your next major project coming up.

New Wire Rope Standard in the Works

New Wire Rope Standard in the Works

A proposed engineering standard for wire rope for cranes will have separate chapters for steel and synthetic ropes, a member of the committee working on the standard told a crane and rigging conference in Edmonton last fall.

At the time, Bill Fronzaglia expected the new standard, called ASME B30.30, would be approved by a ballot at a subcommittee meeting in January. However, according to a June 2016 public schedule from the American Society of Mechanical Engineers, which develops the ASME standards, the B30.30 wire rope standard was still under development. And an agenda item from an ASME B30 standards committee meeting held in Houston in May 2016 noted that the ballot on the rope standards draft had been withdrawn. That was because of “the extent of the changes to the document” in evaluating comments.

The subcommittee planned a final review of a revised document after the May main committee meeting and anticipated “resubmitting a new first ballot shortly afterward.”

Deborah Wetzel, the society’s manager of media relations, confirmed by email in July that the B30.30 standard was still under development and had not just been approved by the B30 standards committee. Once that approval takes place, the public will have a chance to review the standard and submit comments during a public review process that will be announced on the ASME website at https://cstools.asme.org.

“Since our standards are developed under a consensus process, we are unable to predict when the committee will reach consensus on this new volume,” Wetzel said, adding that “a timeline for approval/publication is not available at this time.”

Of the 29 existing ASME B30 standards, “16 are incorporated into Canadian provincial and territorial regulations,” according to an August 2014 report of the Standards Council of Canada on hoisting and rigging regulations in Canada. However, none of the ASME B30 standards are incorporated into any federal Canadian regulations. As of August 2014, B.C. had incorporated 13 ASME B30 standards, the most of any Canadian jurisdiction. Yukon had incorporated 12, Nova Scotia, 10 Manitoba 6, and Newfoundland two. None of the other provinces or territories had incorporated any.

In Europe, the situation with synthetic rope is more complicated than in the U.S., Fronzaglia said. The European Union has a machinery directive that for a piece of equipment that doesn’t have a standard, a manufacturer can create a technical file and show evidence that it works and is safe, Fronzaglia said. That enables the manufacturer to place a CE mark on the product, such as on a high-performance sling.

However, the European Federation of Material Handling has met with major crane manufacturers to develop a standard “in a short period of time” that won’t be legally binding but will act as a guideline.

And the International Standards Organization in a meeting of Technical Committee 96’s subcommittee SC 3 redefined wire rope for cranes as applying to ropes “regardless of their material properties,” Fronzaglia said.

Basically that means the committee acknowledged the need to develop a synthetic crane rope standard, he added.

For all of us at TNT Crane, we realize that this is an integral part of crane safety.

Use Cranes In A Safe Manner

Use Cranes In A Safe Manner

How to perform the safe operation of cranes? Cranes have made a lot of things easier. In order to operate cranessuccessfully and efficiently, the safety considerations need to be taken into account. The safety of the persons operating the crane as well as the all others around it is of prime importance. Following are some tips which can be followed to ensure the safe operation of cranes:

License:

Obtaining the license of crane operation is the first thing that all the crane operators must do. The National Commission for the Certification of Crane Operators (NCCCO) handles the standards for crane operator certificates. Crane operators must prove their knowledge of efficient crane operation by obtaining the certification.

Mobile Crane Computer:

You should never override the computer of the mobile crane.

Be Mindful of Your Surroundings:

Be aware and alert about your surroundings. Be watchful and observe all overhead hazards, including power lines and nearby buildings.

Create a checklist before operation:

Prepare an operating manual which includes all the steps and safety procedures of the crane operation, along with a checklist. The checklist should include:

  • Checking hoist
  • Examination of loading chain
  • The place and positions of hooks

Ground Conditions:

Ensure that your mobile crane can easily be supported and safely operated on the site.

Pads and Cribbing:

Ensure that appropriate pads or cribbing are being used.

Don’t Ignore The Safe Working Load (SWL):

One can easily make a mistake of thinking to lift more than the SWL of the crane, which can be a really hazardous task. The definition of SWL is self-explanatory – the crane cannot lift more than that safely. Make sure that all the operators are using the right sized crane, sling and equipment for the current job.

No Slack Chains:

It does not matter if your workers are fresh or highly experienced, they should not operate the crane just based on their instincts as it can be very risky. The chain or wire must be taut and firm before lifting any load. The operators must ensure:

  • Never run the hook with a slack chain
  • The chain or wire must never be bent on sharp edges
  • If they see any damaged chain or wire, they must immediately report it

Oil and Fluid Levels:

Before staring the crane, ensure that there is sufficient gas, oil and any other type of required fluid.

Other Safety Precautions:

Indeed, even with all of the safety precautions, there is still a chance that accidents may happen and it is essential that you know what steps to take in case of an accident. Take all the necessary precautions like ensuring that the proper attire and safety equipment are worn by the operators.

Ensure that all the personnel are properly trained to handle an emergency situation so that the risks and problems may be minimized in case of an incident.

Conclusion:

Operating cranes with proper safety precautions can make the workplace safer and the work more efficient. Make sure that all the operators are licensed to operate the cranes in order to have a great working place with a safe atmosphere.

How To Find The Right Crane

This article will teach you how to find the right crane

Almost all the industries rely heavily on cranes. They can lift and move extremely heavy objects with unreal ease. The importance of cranes cannot be denied in any way. They are extremely reliable and the success of mega projects depends heavily on cranes.

If you have the need for a crane, you need to understand the importance of selecting the right crane for yourself. To be able to do that, you need to understand the details and specific things regarding the project.

Crane Cafe is passionate about cranes and we are excited to share all the cool stuff related to cranes. An article is shared here, which is in the form of questions and answers and  will teach you how to find and pick the right crane for yourself.

Read the full article to learn more!

Following are the questions and answers that you need to know in order to select a proper crane for your project:

What Load is Being Lifted?

Loads can shift at random intervals, and they may be balanced in unusual ways. One important part of deciding which kind of crane to use is to determine what type of load you are going to move. This inquiry process needs to include both the materials inside, and the method of containing them. A liquid inside a tank is going to have dramatically different movement characteristics than a flat car trailer full of tightly packed solid objects. Exploring the entire fleet of possibilities can benefit you if you are unaware of the types of cranes available to you.

How High is the Work to Be Done?

The height of the work is going to impact how the boom is set up, as well as what kind of boom will be necessary. Furthermore, the extension of the crane’s boom can be affected by the wind, which increases exponentially as the height increases. In addition, the amount of counterweight needed to heft loads to ever-increasing heights needs to be calculated differently versus if the height is lower. Tower cranes now have dramatically higher capacity than they once did, and they can often lift over 1,000 meters into the air.

What Kinds of Obstacles are There?

In many environments, especially urban and suburban ones, cranes need to be adapted to circumventing obstacles. In addition to winds, there may be power lines, other buildings and other obstacles that can keep a crane from being able to simply raise the load directly from its origin point to its destination. In some instances, even the control scheme the crane uses can be difficult in the presence of obstacles, with pendant station cables getting caught. Radio controls may be more effective and less potentially hazardous.

How May the Crane Affect the General Public?

Just like how tower cranes are affected heavily by windy weather, the public in the area the crane is operating may be affected by this operation. If the crane’s size impacts the flow of traffic beyond a reasonable threshold, this can cause problems for the entire construction site. Further, if the crane is likely to cause issues with the operation of nearby buildings, this needs to be taken into consideration prior to selecting the type of crane you are going to use for your project.

In order to fully understand the topic, you must read the full guide on selecting the right crane published on TNT Crane & Rigging.

 

Top 7 Types of Construction Cranes

Top 7 Types Of Construction Cranes

By March 20, 2017One Comment

crane is a tower or derrick that is equipped with cables and pulleys that are used to lift and lower material. They are commonly used in the construction industry and in the manufacturing of heavy equipment. Cranes for construction are normally temporary structures, either fixed to the ground or mounted on a custom built vehicle.

They can either be controlled from an operator in a cab that travels along with the crane, by a push button pendant control station, or by radio type controls.

As with all things in construction, the crane operator is ultimately responsible for the safety of the site, the rigging crews and the working crane. To learn more about crane safety you can read more about it here and see why Eagle WestStampede and TNT Crane are committed to safety first.

So what are the different types of cranes used in construction?

Mobile Cranes

The most standard and versatile type of crane used in construction today. The mobile hydraulic crane consists of a steel truss or telescopic boom mounted on a mobile platform, which could be a rail, wheeled, or even on a cat truck. The boom is hinged at the bottom and can be either raised or lowered by cables or hydraulic cylinders.

What makes this crane so versatile is it’s footprint and mobility. In construction situations, it can sometimes be difficult to get close to where you need to hoist the materials. Moving a crane into a postition that allows it to lift the material with the correct crane capacity is effected by the footprint of the crane. The foot print is the area required to have the crane set up it’s outriggers into position that allows it to hoist the material while inside the crane chart requirements.

Mobile_Cranes

Telescopic Crane

This type of crane offers a boom that consists of a number of tubes fitted one inside of the other. A hydraulic mechanism extends or retracts the tubes to increase or decrease the length of the boom. Most cranes today are in some form a telescopic crane. Except for the lattice boom crane with is a iron constructed frame that is bolted together to get the right height for the hoist.

Telescopic_Mobile_Crane

Tower Crane

The tower crane is a modern form of a balance crane. When fixed to the ground, tower cranes will often give the best combination of height and lifting capacity and are also used when constructing tall buildings. Some large tower cranes will reach up to 1000 meters high! With an average floor dimension of a high rise equaling 3.5 meters/floor. That’s a crazy 285 story building! Pretty encredible machines. One important thing to note about tower cranes, as they construct past a specific height, it is important to have the tower crane connected to the building to help prevent crane sway and crane tipping.

Tower_crane_picture

Truck Mounted Crane (also known as boom truck or picker truck)

Cranes mounted on a rubber tire truck will provide great mobility. Outriggers that extend vertically or horizontally are used to level and stabilize the crane during hoisting. The capacity of these cranes rarely exceed 50 ton capacity. As mentioned above, their versatility is found in their mobility and reach.

Truck_Mounted_Crane_Knuckle_Boom_picture

Rough Terrain Crane

A crane that is mounted on an undercarriage with four rubber tires, designed for operations off road. The outriggers extend vertically and horizontally to level and stabilize the crane when hoisting. These types of cranes are single engine machines where the same engine is used for powering the undercarriage as it is for powering the crane. These cranes are idea for constructions sites that have uneven, dirt and rocky terrain. The mobility and ability of the crane to travel around the site make it an effect support crane for lighter hoists on highway, construction and infrastructure projects.

Rough_terrain_crane_picture

Loader Crane (also know as a folding boom crane)

loader crane is a hydraulically powered articulated arm fitted to a trailer, used to load equipment onto a trailer. The numerous sections can be folded into a small space when the crane isn’t in use. The capacity of these cranes have increased dramatically over the years. Presently there are 200 ton capacity loader (folding boom) cranes on the market today.

Loader_Crane_picture

Overhead Crane

Also refered to as a suspended crane, this type is normally used in a factory, with some of them being able to lift very heavy loads. Larger overhead cranes (also known as goliath cranes) can be found in use in shipyards and large outdoor manufacturing plants. The hoist is set on a trolley which will move in one direction along one or two beams, which move at angles to that direction along elevated or ground level tracks, often mounted along the side of an assembly area.

Overhead_Crane_picture

Cranes are incredibly powerful and interesting machines. Most people are amazed when they see a crane at work. We marvel at their ability and it is impressive to see what it can accomplish. For the construction industry, it’s an incredibly powerful (some might say) indispensable pieces of equipment used today.

We hope you enjoyed the article and if you did, please feel free to comment or share.

Recent Use of Zoomlion Tower Cranes to Erect the Astana Expo 2017

With the recent Expo 2017 coming to Astana, Zoomlion placed and used multiple tower cranes to erect the pavilions main buildings.

The building has a diameter of 80m and a height of 100m, with pavilions of other countries evenly distributed around it in a ring shape.

Twelve large-tonnage Zoomlion tower cranes, seven Zoomlion truck cranes and one Zoomlion bulldozer have participated in the pavilion construction.  “Among which four Zoomlion D1100-63, the super-large tower cranes with the maximum hoisting capacity in the Central Asia,” said the manufacturer.

The D1100-63 is a new model of self-climbing tower crane, featuring superstructure slewing, double lifting points, level jib and horizontal trolleying. With a hoisting capacity of 9.8t at the 80m jib end, the tower crane adopts variable frequency stepless speed-regulating motor to significantly optimize the system’s running stability and improve positioning accuracy.  PLC (programmable logical controller) is used to control all actions.

The event will take place between June 10 and September 10, 2017.

This was the second time that Zoomlion has been involved in Expo construction, having helped to build the Chinese Pavilion in Expo 2015 Milano.

Zoomlion said: “The direct economic and trade cooperation and cultural exchanges between China and Kazakhstan are of far-reaching significance to promote the development of the “Belt and Road” [Chinese government-backed investment and trade strategy]. As a leading enterprise in the engineering machinery industry, Zoomlion has explored the market in Kazakhstan for over ten years, dedicated to efficiently helping the construction of local infrastructures.”

About the author: Crane Cafe is an organization connected to the crane industry to provide crane, crane operation and crane safety tips.

Tilt Up Concrete Panels by Cranes

The Basics of Tilt Up Construction

Like any business, the construction industry has its own jargon, but you don’t have to be an expert to understand what tilt up construction means. One of the largest and most popular growing industries in the United States, the technique fast gaining pace – and taking up ground – in Canada, too.liebherr mobile crane performing a pre-cast concrete tilt up

From the ground up

Hoist them up and you’re done, right? Tilt up construction may seem straightforward, but there are still multiple, equally important stages to the process. These include:

  • Site evaluation, whereby a qualified professional will study the land and plan the construction before a single ounce of cement is poured.
  • Engineering, providing a stage for intricate planning and problem solving, step by step.
  • Footings and floor slabs, laying down the foundations of the build.
  • Panel forming, building the walls using reveal strips.
  • Reinforcing, erecting a steel grid to support the walls.
  • Embeds and inserts, allowing space for additions to the walls once they’ve been constructed, using pre-fabricated steel plates.
  • Panel erection, lifting the walls from floor to site, before securing them vertically on the structure.
  • Panel finishing, the final stages of securing the walls and ensuring health and safety compliance is met.
  • Insulated panels, making the buildings with high R ratings.

Low cost

One of the biggest draws to this form of construction is the price tag attached to it. Whether you are looking to fill 10 or 1000 square foot, there is no denying tilt up construction is cost effective and likely to help you avoid any hidden costs. Tilt up construction requires the panels to be set on the ground, horizontally or offsite. Once the panels are cured they can be hoisted into place with a mobile hydraulic crane. This makes the build process incredibly fast. The shell of a building can be erected within a 2-3 weeks timeframe.

The benefits

The benefits of using this tilt up construction technique go beyond the building industry. It provides a solid base – literally – for a new life. Fast, secure and reliable, this form of construction is taking on for good reason.

Eagle West Crane & Rigging is a division of TNT Crane & Rigging Canada.