Structural Analysis

PERFORMING STRUCTURAL ANALYSIS OF

STACKS, COOLERS, AND

OTHER PROCESS EQUIPMENT

Meca Enterprises is a leading engineering firm specializing in the development of software solutions for Steel Stack Design, Wind Load Calculations, and Lifting Lug Design.

We also offer a wide range of engineering services for various process equipment, including Stacks, Skids, Air-Cooled Heat Exchangers, and more. At Meca Enterprises, we understand the challenges associated with wind-induced vibration in steel stacks and provide cost-effective solutions, such as dampers, to effectively address stack vibration (vortex shedding) issues. We are committed to delivering innovative and practical engineering solutions to meet the diverse needs of our clients.

INNOVATIONS

ENGINEERING SOFTWARE

We specialize in offering software solutions tailored for Structural Engineers. The MecaStack application is exclusively designed for steel stacks and is globally recognized. The MecaWind application is recognized as the most cost-effective wind program available.

PERFORMANCE

STACK VIBRATION DAMPERS

Meca Enterprises provides innovative solutions, including Damping Pads, Tuned Mass Dampers (TMD) and Tuned Liquid Dampers (TLD), designed to effectively address Vortex Shedding problems, also known as Stack Vibrations.

SOLUTIONS

ENGINEERING SERVICES

Our company offers comprehensive Structural Engineering services for stacks, air coolers, and various other structures. With licenses in several states and Canadian Provinces, our team is well-equipped to provide exceptional engineering services tailored to the unique requirements of our clients.

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Support

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Our Software Innovations

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MecaStack Software
MecaStack screenshot

MecaStack

MecaStack stands as the most widely utilized software globally for the design of self-supported and guy wire supported steel stacks. Our user-friendly Windows-based interface enables designers to efficiently model a stack with complete control over the codes used for Along Wind, Across Wind, Stress, and Fatigue. Additionally, the software allows for the customization of load combinations and factors, providing flexibility and precision as per the specific project requirements.

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MecaWind Software
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MecaWind

MecaWind is a highly efficient program that engineers and designers rely on to conduct Wind calculations per ASCE 7-22, 7-16, 7-10, & 7-05 as well as the Florida Building Code. The user-friendly nature of the program, coupled with its ability to generate professional-looking outputs containing all necessary wind calculations, makes it a standout choice. Moreover, users have extensive control at their disposal to tailor the output to their specific requirements, enhancing the overall usability and effectiveness of the program.

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MecaLug Software
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MecaLug

MecaLug is an intuitive and user-friendly software program designed to effectively design and analyze lifting lugs per ASME BTH-1 "Design of Below-the-Hook Lifting Devices." Additionally, the program offers an advanced capability to apply these lugs to a lifting system and analyze the corresponding loads experienced by the crane, cable, and lugs - thereby functioning as an all-in-one lifting design software.

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Wind Example EBook
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Wind Examples EBook

Our new EBook offers a comprehensive set of wind load calculations, demonstrating the process of calculating wind loads per ASCE 7-16 and ASCE 7-22 in a clear and detailed manner. Furthermore, the EBook provides a valuable comparison of the different methods within each standard, as well as a detailed analysis of the results obtained from ASCE 7-16 versus ASCE 7-22.

Our Engineering Services

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Self Supported Stack Design

Meca has designed many different types of self-supported steel stacks, ranging in height from 6 m (20ft) to 100 m (328 ft.). Some special design considerations we experienced have included:

  • Single Piece Lift of Stack
  • Special Breech Openings
  • “Piggy Back” Stacks
  • Vibration Design
  • Retrofit of Existing Stacks
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GUY WIRE SUPPORTED STACK DESIGN

Meca has designed many guy supported stacks ranging from 15 m (50 ft.) to 167 m (550 ft.) in height. We have performed the following types of special designs:

  • Low Temperature Design (Ambient & Cryogenic)
  • Unique Guy Arrangements
  • Tandem and Piggy Back Stacks
  • Single Piece Lift of Stack (sometimes done from multiple lift points)
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DERRICK SUPPORTED STACK DESIGN

We have extensive experience designing derrick supported stacks:

  • 3 Sided or 4 Sided
  • Pipe Members
  • Flat Faced
  • Demountable
Finite Element Analysis Examples

Finite Element Analysis

Finite element analysis does not always have to be expensive. We encounter certain types of problems repeatedly involving stacks, piping, pressure vessels, etc. Therefore, we have become very adept at building certain geometries for analysis very quickly to provide a cost-effective solution.

Air Cooled Heat Exchanger Structural Analysis

AIR COOLED HEAT EXCHANGER STRUCTURAL ANALYSIS

Meca has years of experience verifying the structural integrity for air coolers of various types and designs. We also have experience in the verification of box headers and FEA of nozzles.

Our Performance Products

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Damping Pads

Meca offers damping pads tailored for stacks, presenting an economical solution typically suitable for stack heights ranging from approximately 50 ft [15.2 m] to 150 ft [45.72 m]. This solution is simple to implement in new stack designs. Damping pads have garnered over 50 years of industry use, establishing a solid reputation for reliability and effectiveness.

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Tuned Mass Dampers (TMD)

A Tuned Mass Damper (TMD) is a device that can be incorporated into the top portion of a stack to enhance its damping, effectively mitigating wind-induced vibration. This advanced solution provides a reliable method to suppress vibration, contributing to the overall stability and performance of the stack.

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Tuned Liquid Dampers (TLD)

Meca specializes in the design of Tuned Mass Dampers (TMD) and Tuned Liquid Dampers (TLD). These solutions are commonly applied to stacks that are 150 ft [45. m] and taller. The selection between TMD and TLD is influenced by various factors that determine the most suitable solution for a specific scenario.

What Our Customers Say

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Adam Community Center profile picture
Adam Community Center
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The Meca Stack, Meca wind, Meca Lug are user friendly software, I have been using for last 20 years for NIMA GROUP LLC. The Meca stack is unique as it uses most of the prominent Comprehensive standards: ASME STS-1-2021 ASCE 7-22, Vortex shedding, Fatigue criteria AISC 360-16 and seismic Criteria IBC 2024 & ASCE 7-22 for non-building structures. I am requesting Meca Enterprise to include the foundation design and anchorage design to include to complete the stack design as a stand-alone complete software.
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Brian Corso profile picture
Brian Corso
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excellent software, been using it for over 10 years now. There have been updates over the years but still is straight-forward. Saves time from doing it by hand and does not require fully modeling the structure as some of our more intense structural engineering software requires.
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Gianfranco Gentile profile picture
Gianfranco Gentile
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Cannon Bono Energia is dedicated since 1958 to design, manufacturing, installation, service and maintenance of industrial boilers for standard and special applications. When required, Bono always use this software in engineering and industrial jobs. Easy to use and excellent service. As a technical director in the design of industrial plants, I have found Mecastack to be an efficient and reliable tool for the structural analysis of self-supported steel stacks. The software offers a clear and well-structured interface, supports major international codes (including ASME STS-1 and Eurocodes), and provides comprehensive reports suitable for third-party review and certification. Its integration of wind and seismic load calculations, thermal effects, and foundation reactions makes it ideal for EPC projects with strict regulatory and safety requirements. While not intended for highly complex geometries, Mecastack is an excellent solution for typical industrial applications where speed and code compliance are critical. Highly recommended for engineers working in the field of stack design. Best Regards
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Todd Watson profile picture
Todd Watson
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I have been using MecaWind for several years. Easy to use and saves sime over my prior hand calc and spreadsheet methods. Plus, I let Meca handle the ASCE updates.
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Engineering Dept profile picture
Engineering Dept
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We use this Meca STACK software for many years. It is very useful and can be use easily. If you are looking for a tool that can support you, this tool is a good choice for you. GO FOR IT!
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Wade Olson profile picture
Wade Olson
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Found MECAWind last year. I am in Love with this wind program. Used to most of it by hand or using excel tables I've made. Don't waste the time like I did on that. Just get MECAWind and you'll pay off the program in one or two projects. Got a customer for life out of me!
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Chip profile picture
Chip
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Very quick response from Mecca’s support team
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David Van Lanen profile picture
David Van Lanen
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Recently had an issue with auto renewal and it was resolved very quickly. Very easy to work the program. I'm an architect so I don't perform engineering every day.
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Art Leon profile picture
Art Leon
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Reported error message and they replied quickly and reset my software so I could install. I was really impressed with how quickly they responded.

Discover Innovative Engineering Solutions for Your Projects!

Explore how Meca Enterprises can elevate your engineering endeavors with cutting-edge software, expert consulting, and reliable solutions. From wind load calculations to stack design and more, our comprehensive services and products are tailored to meet your unique needs. Contact us to take the next step towards engineering excellence with Meca Enterprises!