Screw Anchoring Solution: 3 Important Factors to Consider

Heavy duty earth anchors or fasteners are used for wide varieties of purposes including small or large construction projects and home renovation. In order to safely hold a structure together you need to choose the best drywall anchoring solution. However, if you want the right fastening solution, you need to examine the entire construction site and analyse the proper anchoring needs for that specific site. This includes focusing on three main factors that will determine the appropriate anchoring solution including weight capabilities, environmental conditions and base material.

How to install concrete anchors?

The total weight of the entire construction project for strongest concrete anchors

When you are choosing the heavy duty anchors for the job you should consider the weight conditions of the entire project. What will be the total weight and forces of the entire project that will be applied to the anchor? Then entire project should be erected on the anchor. Therefore, you need to consider the extra weight and the repetitive forces that will be applied to the fixture. These fasteners fall into three types of weight category: heavy, medium and light duty.

When choosing the anchor for your construction project, you should consider the maximum allowable load that the fastener is capable of withstanding. The load capacity is usually obtained based on the tension loads calculated from lab experimentation. The numbers are available in the packaging of the anchor.

The surrounding weather conditions of the project

The environmental condition under which the anchors are installed plays an important part in the success of the installation process. Environment can leave your fasteners exposed to various chemicals and temperature. There are plenty of anchors that are manufactured using the protective materials and coatings to prevent the fasteners from corroding and conceding other environmental damages. Therefore, it is important to use the appropriate anchors that can stay strong in harsh weather conditions.

The Type of anchors to be integrated

Picking the right fastener for the construction purpose is crucial in maintaining the reliability of a project. In order to maintain the stability of the anchors it is important to install the fastener in the hole perfectly. Let us explore the most common types of anchors used in the construction industry and their applications:

·         Wedge anchors

The name wedge anchor comes from the conical hollow bottom and is used to install anchoring system into hardened cement. The sides of the anchors are designed in such a way that it can easily grip the predrilled holes around the concrete.

·         Anchor bolts

Available in various shapes such as S-shaped, J-shaped or straight these anchors are implanted into wet cement. Instantly after the cement is poured, the fastener is installed into the wet material. Once the cement dries and solidifies, the anchor provides a firm hold as load-bearing walls. These anchoring solution can also be installed in solidified cement, however, in order to do that, a hole needs to be drilled and the fastener need to be secured with a specially formulated epoxy compounds.

·         Sleeve anchors

The appearance of sleeve anchor is similar to the wedge anchors, having a headless bolt with a hollow bottom. The installation process is similar too, as it requires the fastener to be installed and smashed in a predrilled hole to grip perfectly into the ground.

·         Drop-in anchors

This type of anchor consists of a bolt and an empty metallic cylinder. The cylinder is closed at one end while open at the other. The closed end is hollow as a result it can be easily installed into a predrilled hole just like wedge or sleeve anchors. Once placed, the bolt is corded into the fastener’s cavity.

·         Concrete screws

Just like the other screws, concrete anchors too need to be installed into a predrilled hole. However, it is important to remember that trying to install it too deeply inside the concrete can lead cracks in the cement. Although it is cheaper and easier to install than the other anchors, it is comparatively weaker than the other fasteners.

Choosing The Right Ground Anchor System To Install A Monument

Nowadays, the advancement in the construction industry has increased the demand for more cost-efficient foundation options. Even though concrete piers and steel piles are the most common foundation options available to support the ground mounted PV settings nevertheless, there are far better options available. These include shallow grade beams, ballast blocks, helical screws and ground screws. However, the most reliable and cost effective option is provided by ground anchors.

What is this ground anchor?

The effective ground anchor system is used to secure an erect structure so that it does not fall or cause any sort of danger in the future. It is often mistaken as a stability device, however, it is used to serve as a safety device. Nowadays, memorials or structures above 20 inches or more are erected using an earth anchor to prevent the risk of failure or damage. The national Association of Memorial Masons (NAMM) is one of the leading resources on foundation systems. NAMM sets the standards and rules and regulations for anchor installation system.

Benefits of ground anchors over others

The ground anchor has ample advantage over other form of foundation systems:

• Provides reliable and safe foundation solution
• Requires lower material costs
• Low labour costs
• Reduced transportation costs
• Very easy to install
• Provides greater adjustability
• Can be installed without specialised installation equipment.

Selecting the right ground anchor System

In order to choose the right earth anchor system it is important to read the manufacturer’s instructions. The anchor needs to be correctly sized for the headstone that you are installing or repairing.

Ground anchor systems endorsed by NAMM must withstand 100-150 kg per minute. In case of a softer ground, you can opt for an alternative fixing option or use two anchors for additional security. Keep in mind, all the fixing system bars, dowels, pins, tubes, washers and bolts should be made from grade A302 stainless steel. This helps maintain high standards of quality and reduces the risks of accidents or mishaps in the future.

Cheap Foundation Piling Budget Screw Piles - Non-Engineered Crap

We are sick to our back teeth at the mentality of some builders in WA and I have a question for them: What price do you put on screw pile product that is designed manufactured installed in accordance with REAL engineering design & installation certification which is all under audited Quality Assurance?

Do we sound pissed off? Well we are. Here's why. Some Perth builders, particularly project builders simply don't understand what constitutes a certifying design engineers, Pile Design & Installation Certification. In particular, we're talking about screw piles used for domestic housing. WA's domestic builders & a sector of WA's consulting structural engineering fraternity seems unable or unwilling to rectify and control this ridiculous situation. Think we're out of control in making such a statement? Then we welcome you to contradict us on the following as we would love to be proven wrong & will publicly apologise on Linkedin.

In addition to what is outlined below, keep in mind that WA is the ONLY STATE IN AUSTRALIA where an individual can design & install piling, ground-anchoring, deep soil stabilisation & retention without any experience, qualification or licence and get away with it. A car salesman could come along tomorrow, claim to be an expert in piling, design a so called solution & install same? 

Now to the facts in what constitutes CPEng. "Piling Design & Certification" & what's necessary to comply with the Australian Building Code, Australian Standards and Professional Engineering Guidelines & Principals? This recent extract from an Engineers Australia document currently trying to address this very problem is a good start:

The specific requirements for any certification will be determined on a case-by-case basis. This may or may not require a certification to be in a particular format and to address certain things.

However, by way of general principle, a certification should be:

1.    Accurate

2.    Clear and precise about what is being certified (and if appropriate - what is not)

3.    Limited to what is known

4.    Exclusively reflect engineering considerations

5.    Based on appropriate evidence to the positive satisfaction of the CPEng.

6.    Importantly, a requirement for certification and certification itself are not the same. Where a contractual or other requirement specifies that certain certifications be made, for instance, that an ‘as built’ structure complies with an approved design, that certification would not be accurate if it does not. Where there have been changes, but it meets the ‘design intent’, then that would be the appropriate and preferential certification. Put simply; any certification must reflect the underlying engineering reality.

Lets look specifically at WA. Just about everybody in the WA industry will have seen, at one time or another, these "generic pile details" for project builders that are bandied around. Everybody believes this to be an engineering certificate or a certified piling design. Rubbish. Next time you see one of them use the points above & see how it stacks up? How does a generic screw pile detail that doesn't show a specific screw pile CHS section design, a minimum design load, an installation eccentricity tolerances, a minimum design life, a minimum installation torque, an interface connection, etc. etc. etc. constitute engineering certification? It doesn't. More recently these signed generic pile design details carry the following notation: "Screw pile design to manufactures specification". That comment transfers responsibility for pile design & installation outcomes to the screw pile manufacturer/contractor. So why isn't site specific screw pile design & installation certification provided by these budget screw piling operators? Simple. Not only don't they have the resources, they don't have an understanding of what constitutes Australian Standards & CPEng compliant engineers screw piling certification. All they know is how to wind in a screw pile. They have constructed the false industry perception, that the original generic signed pile detail is engineering certification and thats misleading at best.

So what constitutes certified engineering piling design & installation certification? Firstly, correct certification must cover the design in its entirety and the installation outcomes. Miss one, the lack of that one cancels out the validity of the other. So miss the installation certification part of the equation and the original pile design certification is worthless. Moreover, if the design certification fails to specify all the design elements then the original is not even worth the paper its written on. Pretend your in Court trying to substantiate who was responsible for the design & outcome where Foundation Piling or Shoring has failed?

PART 1. - Engineers Piling Design Certification must include:

1. Site Address
2. Any Adjoining Services Details
3. Allowable Pile Design Loads (compression, tension, bending moment, lateral)
4. Allowable Screw Pile Eccentricity
5. Screw Pile Specification (CHS yield strength, shaft section size & thickness, helix number/size/thickness/yield/pitch/welding/coating
6. Geotechnical parameters that the pile design is based on
7. Minimum Screw Pile Design Servicability Life (corrosion allowance criteria)
8. Minimum Screw Pile Embedment
9. Minimum Installation Torque
10. Screw Pile Layout Detail Drawing
11. Screw Pile Interface to Footing
12. Footing/Ground Beam Design & Detail
13. Installation Criteria (installers qualifications)
14. Future Proximity Excavation Criteria
15. Statement of Australian Building Code & Standards Compliance 

Part 2. - Engineers Installation Certification is to include:

1. Site Address
2. Cross Reference to the Original Engineers Piling Design Certificate
3. Screw Piling Installation Contractors Details
4. Reference to Piling Contractors Installation Logs (inc. subsequent load testing results if applicable)
5. Engineers statement confirming the review of the screw pile installation logs and subsequent compliance to the engineering design & intended outcomes in line with Australian Standards

Benefits Of Using Helical Screw Piers-Screw Piles For Pedestrian Bridges

Helical piles cover a diverse range of function when developing heavily-loaded and medium-loaded permanent structures. The final foundations are subjected to extensive tension and compression. Helical screw piles turns up to be an effective solution for multiple design challenges.

The benefits of using this new technique for pedestrian bridges are way more than the traditional construction technologies.

Quick and vibration-free installation– Helical anchors are easy to install even in difficult terrain and sensitive soils. It can be installed with the aid of handheld equipment without drill spoils or soil excavation dumped aside. Installation of screw-piers-screw piles is possible within a limited-access area that too in any weather conditions.

Strength and capacity – Bearing capacity of screw anchors are higher than the conventional piles even if their lengths are identical. The screw piers produce their load capacity from the flat areas of helical plates that are in contact.

Extensive resistance power – Helical anchors are extremely resistant to frost heave and are feasible for a wide range of soil conditions. Its effective in-ground strength in earthquake zones is the most significant advantage among the others. Screw piers remain unaffected by the groundwater and caving soils.

Huge protection against corrosion – The materials of screw piles is typically galvanized to expand its lifespan in aggressive environments. Special coatings on the helical anchors can also be provided if circumstances require extensive corrosion resistance.

Noiseless erection – Installation of helical piles produce much less noise than that of the driven piles. These improvised screw piles also minimize the ground vibration during its erection. Helical pile foundations are extremely environment friendly than the other deep foundations.

Cost effective foundations – Helical Pile constructions can be done in a lower initial outlay. These foundations are possible to relocate and reuse later and are more sustainable that makes the project cost effective.

Website Directory Australia

3 Safety Measures To Prevent Accidents At Pile Driving Site

Source:

Pile Operations initiate soon after the conclusion of pre-construction planning.  The commencement of the tasks trigger a hazardous situation and a concerning time for the pile contractors. The potential of accident associated with pile driving elevates the significance of maintaining safety gears throughout the job. A contractor needs to focus on workers, support, equipment, site condition, materials and every other factor to conduct the project smoothly.

Pile driving in Melbourne

Pile driving in Melbourne

Concentrate on the first step  

The initial stage of pile driving needs more emphasis to ensure a high-quality finishing.  At the onset of a project, the superintendent needs to convey the safety rules to all the employees through a formal meeting. It is even better if printed hard copies are distributed among the workers.

https://biteable.com/watch/embed/foundation-technologies-melbourne-australia-1799093

On this meeting, the superintendent must collect the contact numbers of those to be telephoned in emergencies. He even needs to arrange for fulsomely stocked first-aid kits and a trained first aider. A thorough check on nearby hospital and ambulance service is another significant point to focus on.

A review of the operating plan, equipment, availability of on-field safety gears, and safety placards on rigs by the superintendent is essential before starting off the project.

Ensure at most security for the workers

Contractors of pile driving  provide all the vital gears for the laborers. All the operators must be supplied with the listed items to safeguard them while piling.

• BRIMLESS HARD PLASTIC HATS FOR ALL THE WORKERS

• COVER WIELDING GOGGLES WITH 3-4 TINTED LENSES AND EYECUPS FOR THE BURNERS AND CUTTERS

• CHIPPING SAFETY GLASSES WITH CLEAR LENSES FOR THOSE WHO ARE APPOINTED AT CHIPPING AND GRINDING

• WELDING HELMETS FOR WELDERS WITH SHADE 10-12 LENSES. PORTABLE SHIELDS AND SHADE 2 GLASSES WITH SIDE SHIELDS MUST BE PROVIDED IN CASE OF EXTENSIVE WELDING

• NEOPRENE-COATED CANVAS GLOVES FOR WORKERS WHO DEALS WITH CREOSOTED PILES, PLASTIC SLATE AND CEMENT

• LIFE JACKETS AND EMERGENCY BOATS FOR WORKERS HANDLING MARINE OPERATIONS

• A 6# MULTIPURPOSE TYPE 2A-10BC DRY CHEMICAL EXTINGUISHER AT THE ONSITE OFFICE, CHANGE AREA OR TOOL HOUSE

• 2# TYPE 5BC DRY CHEMICAL EXTINGUISHERS ON EACH CRANE AND MAJOR EQUIPMENT

Maintain safety at the site

Onsite projects need much more wariness to avoid any sort of menace. The work area as well as the walkways must be kept free of debris, scrap lumbers, pile cut-offs and other loose materials. A secure handrail and a toe board must be setup for walkways and platforms four feet above the ground or located in a perilous location.

The contractors must supply proper containers for trash, oil rags and other combustible materials. Special precautions are required for pile drivers working in potentially combustible environments.

The pile driving contract for your site concludes harmlessly only if the safety measures are passionately maintained in mutual cooperation of the contractor and the laborers.