Structural Effects of Wind loading

Wind can be dangerous

Tutus offers a variety of sizes and configurations of products to help maximize the options available when making your selection to prevent the hazard of dropping tools and debris.

Why does Tutus limit the wind speed to 15 mph ? ? ?

Wind speeds increase 50% with every 50 ft. of elevation.  So if someone takes a reading at ground level and the anemometer shows 15mph conditions. The work needs to be postponed with the D.O.P.S. because the basket is subjected to 28 mph winds at a 70ft working height.

wind anemometer

Understanding ANSI/SAIA A92.20 Section 4.2.2.4 Wind Forces

Outdoor MEWPs refer to aerial lift equipment subjected to wind. 

All wind rated MEWPs are expected to withstand 100n/m2 based on a 28 mph gust. Analysis may be conducted from Computational Fluid Dynamics (CFD) modeling or physical testing. Wind foreces are assumed to act horizontally, shape factors applied to surfaces exposed to wind shall be considered. The surface area of one person is detailed, representing a 5'8" tall worker. The number of people the platform can hold shall be calculated. The tools and equipment must be multiplied by their mass acting horizontally at a height of 1.5ft above the work floor. 

Research and Considerations for D.O.P.S.

Pressure Drop Across Screens (Perry's handbook)

Pressure drop

Pressure Loss Coefficient (Perry's Handbook)

Pressure loss

Fractional Free Area. The flow of air through wire screens. 

Fractional Free area

Will Tutus Allow Wind Speeds of Up to 28 mph?

Currently neither OSHA Regulations or National Standards outline an avenue in which TUTUS may define or recommend a wind speed for its products. Only through continued collaboration with the manufacturers of MEWP equipment may TUTUS provide authorization on wind speed. Currently our efforts have resulted in written authorization from responsible manufactures to use D.O.P.S. products in 15mph wind speeds. It is our goal to see that number increased to 27mph on average.

Upon request a certificate of compliance is available to our customers. The letter was formed in response to changes with the ANSI/SAIA A92 standards. The letter addresses use and application on brands of equipment TUTUS never received a response for modification. We continue to work closely with Industry Standard Bodies, Engineering Firms, and Wind Force Laboratories.

Space Alliance Technology Outreach Program Assist TUTUS

TUTUS awarded SATOP engineering services

Wind analysis results in new mesh

Tutus gladiator mesh

The Gladiator Mesh by Tutus.

This mesh has been in development since 2016 and just being made available this year as part of our fall 2021 Gladiator mesh line. We will be incorporating this engineered mesh into our Universal and Modular product line.

Contact us if your in need of a wind rated mesh that your needing to purchase in raw amounts. This is a superior alternative to readily available debris mesh.

Meet Forrest Hester the man that controls gravity

Forrest Hester

An advocate of assisting operators to promote safety. Forrest volunteers as the Chairman of the Aerial Work Platform Council with the Scaffold Access Industry Association (SAIA); In addition to his time with the SAIA Board of Directors;

  • A certified instructor with the National Center for Construction Education and Research (NCCER);
  • A member of the ANSI-Accredited Standards Developers (ASC) A92 committee Main Body;
  • Secretary for ANSI/SAIA A92.24 Training Requirements For The Use, Operation, Inspection, Testing And Maintenance Of Mobile Elevating Work Platforms (MEWPs);
  • ANSI/SAIA A92.22 Safe Use Of Mobile Elevating Work Platforms (MEWPs) Member;
  • ANSI/SAIA A92.20 Design, Calculations, Safety Requirements And Test Methods For Mobile Elevating Work Platforms (MEWPs) member;
  • ISO/TC 214 Elevating work platforms TAG for Safe Use Of Mobile Elevating Work Platforms (MEWPs);
  • North American Regional Council (NARC) with the International Powered Access Federation (IPAF).
  • Founder of TUTUS LLC, a components part manufacturing company of dropped object prevention enclosures for aerial work platform equipment.
  • Inventor of the Dropped Object Protection System (D.O.P.S.) product line.

Why the NEW ANSI A92 M.E.W.P. Standards are delayed. Will they publish? – – Help – – who really knows whats going on. . .

By Forrest Hester | 2020-02-17 | 0 Comments

What is the mission of ANSI? Has the A92 through process met its obligations to enhance both the global competitiveness of U.S. business and the U.S. quality of life by promoting and facilitating voluntary consensus standards and conformity assessment systems, and safeguarding their integrity? When do these standards get written, who are the developers, what …

Why the NEW ANSI A92 M.E.W.P. Standards are delayed. Will they publish? – – Help – – who really knows whats going on. . . Read More »

TUTUS appeal to ANSI/SAIA A92

By Forrest Hester | 2019-06-14 | 0 Comments

Tutus Solutions, Inc. (Tutus) Appeal Tutus appeals the approval of A92.20 and A92.22 as ANS also based on alleged non-compliance with the Commercial Terms Policy. In Tutus’ case, the alleged violation flows from text in the standards that requires all modifications to the MEWP be approved by the manufacturer, for example, section 4.5 Modifications of A92.22, states …

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THE MANLIFT WAY (PART 3 of 3)

By Forrest Hester | 2019-03-26 | 0 Comments

The way a team plays as a whole determines its success. You may have the greatest bunch of individual stars in the world, but if they don’t play together, the club won’t be worth a dime.- – Babe Ruth The Great Bambino sums up a simple fact that you can have the very best on your …

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Manlift Way (Part 2 of 3)

By Forrest Hester | 2019-03-15 | 0 Comments

We are at our very best, and we are happiest, when we are fully engaged in work we enjoy on the journey toward the goal we’ve established for ourselves. It gives meaning to our time off and comfort to our sleep. It makes everything else in life so wonderful, so worthwhile. – -Earl Nightingale. Engagement …

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The Manlift Way (Part 1 of 3)

By Forrest Hester | 2019-03-12 | 0 Comments

“The supreme quality for leadership is unquestionably integrity. Without it, no real success is possible, no matter whether it is on a section gang, a football field, in an army, or in an office.” Quoted by Dwight D. Eisenhower Integrity is a value that I spent a lot of time thinking about and speaking about. …

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ATTENTION: IPAF North American Regional Council presents:

By Forrest Hester | 2018-09-06 | 0 Comments

IPAF INNOVATE 2018 Aerial and Mast Climber Workshop Challenge & Awards IPAF “Innovation doesn’t happen by itself” 2018 Aerial and Mast Climber Workshop Challenge & Awards Hosted by:  Houston Area Safety Council Headquarters and NASA Space Center Houston on October 16 – 17, 2018, Pasadena, Texas, USA Innovation doesn’t happen by itself – become part of this event Join us …

ATTENTION: IPAF North American Regional Council presents: Read More »

Why you must stop using Debris Mesh

By Forrest Hester | 2017-07-14 | 0 Comments

TUTUS IS THE ONLY SOLUTION THAT TOTALLY ENCAPSULATES THE AERIAL WORK PLATFORM   ACCORDING TO THE BUREAU OF LABOR STATISTICS, THERE ARE MORE THAN 50,000 “STRUCK BY FALLING OBJECT” OSHA RECORDABLES EVERY YEAR IN THE UNITED STATES.   What’s happening in the field? Projects sites are responding to the issue of dropped objects by installing debris mesh. This “solution” …

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DROPS! Meet Forrest Hester – The Man That Controls Gravity

By Forrest Hester | 2017-05-12 | 0 Comments

Forrest Hester, Electrician, Inventor, Husband, and Gravity Controller – you wait and see. Forrest is the force behind Tutus Dropped Object Prevention Solutions (DOPS).  Todd Conklin met Forrest at a meeting and just got excited by his excitement and zeal for helping to find a solution to a really big problem in many industries. Forrest comes at …

DROPS! Meet Forrest Hester – The Man That Controls Gravity Read More »

SkyNet™ Work Platform Netting

By Forrest Hester | 2017-02-21 | 0 Comments

The ability to move freely beneath a stadium ceiling multiple stories above the ground seems awkward at best, considering high places are out of the reach of most work scaffolding and bucket lifts. And what if you could install a walking/working floor just below the ceiling without the use of metal fasteners, drilling or modifying …

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Structural Effects of Wind Loading: TUTUS Case Study conducted by University of Hartford College of Engineering

By Forrest Hester | 2017-02-11 | 0 Comments

The University of Hartford College of Engineering, under the direction of Adjunct Professor Allan Penda, with a team of Senior year Mechanical Engineering students working as a Capstone Project, developed a test program specifically for TUTUS LLC as a case study of their new DOPS safety system – Dropped Object Solutions, a tool and debris …

Structural Effects of Wind Loading: TUTUS Case Study conducted by University of Hartford College of Engineering Read More »

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