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MHS Building Systems Structural Aluminum Framing Design by Tim Siahatgar

MHS Building Systems Structural Aluminum Framing Design by Tim Siahatgar is a highly esteemed winner of the very prestigious 2023 A' Design Award in Building Materials and Construction Components Design Competition Category.


IronBuilding Components· 2023

MHS Building Systems Structural Aluminum Framing Design

by Tim Siahatgar

Client: MHS Building Systems

A' Design Award Winner in Building Components Category

29,129

Verified Award Winner

Verify Award Status for #148543

Colors

The Design

About MHS Building Systems Structural Aluminum Framing Design

MHS Building Systems, designed, patented and developed by Tim M Siahatgar, Architectural Engineer located in Irvine California. A strong, yet lightweight, Aluminum Construction Systems, it's the perfect solution to meet the creative demands of modular unique projects, with endless possibilities, designer and contractors work together, to deliver sustainable prefabricated projects using MHS Structural Aluminum Framing and paneling systems. Almost any architectural residential and commercial buildings design up to 3 stories can be built with this certified method of modular prefab construction.

The Recognition

About the A' Design Award

MHS Building Systems Structural Aluminum Framing Design is an Iron A' Design Award winner, a prestigious recognition granted to good designs that meet the professional and industrial requirements expected from well-designed creations. Iron winners demonstrate great skill, high specialization, expert understanding, and creative capacity of their creators. MHS Building Systems Structural Aluminum Framing Design is expected to be a highly regarded, admired, and cherished creation that is practical and innovative. This Iron A' Design Award-winning design integrates industry best practices and has competent technical characteristics linked with know-how and talent. MHS Building Systems Structural Aluminum Framing Design is respected for its thoroughness and is designed to provide quality of life improvements that help make the world a better place.

Interviews

Design Interview

What is the main principle, idea and inspiration behind your design?

"I come from an architectural engineering background and have always been drawn to the concept of modularity and flexible structure. As a specialist in building construction, I've come to recognize the crucial role of connectors in creating sturdy structures. Whether it's wooden lumbers connected by nails, glue, or bolts, or metal components connected by bolts or welding, these connections significantly contribute to a building's strength.

I realized that aluminum extrusions have numerous advantages over traditional wood or metal elements in the realm of human shelter. However, for over a century, effectively connecting two hollow extrusions has posed a problem. Aluminum welding is excessively expensive, and bolting two extrusion elements together doesn't adequately withstand lateral loads.

The practice of using aluminum extrusions for building framing has been around since 1904, but it didn't gain popularity in the building industry, primarily due to connection issues of hollow aluminum elements. Companies such as Switzerland's Syma-Systems have attempted to find locking solutions, but their approaches were only suitable for interior framing. Architect Buckminster Fuller's interlocking joint invention for aluminum extrusions, used in geodesic dome structures, marked a significant advancement.

After years of research and study, I have developed an improved interlocking clamping system for modular aluminum geometric profiles. This breakthrough allows us to reimagine traditional connector techniques, making building structures more durable, comfortable, efficient, cost-effective, and sustainable. My design lends itself to the creation of recyclable, relocatable, and renewable building structures, significantly contributing to a sustainable future.

As an architectural engineer, I take great pride in making a tangible contribution to the evolution of building construction and positively impacting the world around us."

What has been your main focus in designing this work? Especially what did you want to achieve?

"My primary focus in designing this work has been to create a comprehensive building envelope. It incorporates MHS structural aluminum framing, and insulation with solar roofs, and requires minimal demolition, save for doors and windows. This is paired with an emphasis on Indoor Air Quality systems and upgrades in Mechanical, Electrical, and Plumbing (MEP) facets. My overarching goal was to introduce a methodology to construction that could potentially revolutionize the residential sector. Simultaneously, it emphasizes sustainability and effectively caters to the evolving needs and expectations of contemporary homeowners and businesses."

What are your future plans for this award winning design?

"My future plans for this award winning design involve broadening its introduction to building systems globally. The goal is to enable the construction of mass-customizable dwellings, accessory dwelling units (ADUs), and single/multi-family homes. This will be achieved through the integration of an Engineered Frame coupled with customizable architectural finishes, and functional as well as multifunctional spaces. I aim to make significant strides within the industry of modular prefabrication and green building technology."

Read the Full Interview

Grand Interview

Your innovative approach to aluminum construction with MHS Building Systems Structural Aluminum Framing Design has revolutionized prefabricated building - could you walk us through the journey from initial concept to achieving certification for seismic design categories A-F?

The journey from the initial concept of MHS Building Systems Structural Aluminum Framing Design to achieving certification for seismic design categories A-F has been a rigorous and research-intensive process.It began with the development of MHS Prefabricated Modular Building Components, designed to be strong, lightweight, and capable of meeting the demands of modern modular construction. To ensure the system’s viability in seismically active regions, we based our work on Chapter 12 of the “SEISMIC DESIGN REQUIREMENTS FOR BUILDING STRUCTURES ASCE 7-05”. We conducted extensive testing at certified laboratories, and all results were analyzed by professional structural engineers. These tests and analyses were then submitted to the City of Los Angeles Department of Building and Safety (LADBS), which granted approval after two code cycles, culminating in the issuance of Research Report No. 25703.The primary challenge in achieving seismic certification was defining the response modification coefficient (R-factor), overstrength factor (Ω0), and deflection amplification factor (Cd) for MHS, as these were not explicitly specified for our system in the initial report. To address this, we conducted further research, including full-scale testing of wall, framed insulated panel (SIP), which form the core of our modular assemblies. Wall consisting of MHS aluminum post and beam framing and sandwich panels with rigid foam insulation (SIP), were evaluated under cyclic loading to simulate seismic forces.Tests conducted at the Smith Emery Lab Los Angeles, demonstrated that assembly system are a highly energy-efficient and structurally sound alternative to traditional construction methods. These tests, along with additional studies, confirmed that SIPs panels combined or frame with MHS aluminum framing could achieve acceptable seismic performance, even in regions classified under Seismic Design Categories A through F. This allowed us to propose seismic values for the MHS system: - Response Modification Coefficient (R): 6.5 - System Overstrength Factor (Ω0): 3 - Deflection Amplification Factor (Cd): 4The MHS assembly system underwent various shear racking, diaphragm, and transverse loading tests to ensure compliance with building code design criteria, and the results confirmed that MHS is suitable for use in buildings subjected to seismic forces. The testing data, including detailed reports and results, were submitted to LADBS as part of our certification package. This comprehensive testing and analysis demonstrated the system's structural integrity and performance in seismic environments, ultimately leading to its certification.Through this process, MHS Structural Framing has been approved for use in buildings in seismic zones, providing an innovative, certified solution for modular construction in even the most demanding environments. In October 2024, the MHS engineering team worked on updating the MHS LARR report with a new building code evaluation from international QAI laboratories. This update is based on the latest IBC, IRC, and CBC standards to obtain new certifications and global recognition for the MHS Structural Aluminum Framing Assembly.

The interlocking connector system in MHS Building Systems Structural Aluminum Framing Design appears to be twenty times stronger than conventional wood or light steel framing - what inspired this breakthrough in structural connection design and how did you validate its performance?

The development of the interlocking connector system in MHS Building Systems Structural Aluminum Framing was driven by the need for a stronger, more efficient alternative to traditional wood and light steel framing. This breakthrough was inspired by the desire to create a lightweight yet robust system capable of withstanding extreme conditions, while also reducing the environmental and structural challenges associated with conventional materials.Traditional framing methods, such as wood and steel, come with limitations in terms of weight, durability, and resistance to environmental factors like seismic activity, mold, and fire. In contrast, aluminum is known for its strength, flexibility, and high corrosion resistance, making it an ideal material for construction in various climates and conditions. The innovation of the MHS interlocking connector system lies in its ability to harness these qualities, resulting in a system that is twenty times stronger than conventional wood or light steel framing.The “strength-to-weight advantage” is clearly demonstrated in the comparison of MHS post-and-beam framing. With design and calculation of 144 square meter, three-story building, the MHS aluminum post-and-beam structure weighs is about **12.35 tons**, whereas the same building constructed with traditional steel (iron I-beam) framing would weigh approximately **34.6 tons**. This makes the MHS aluminum framing system about **2.85 times lighter** than steel I –beam structure. In fact, when considering the overall dead load, the MHS Aluminum Framing system weighs **19.5 times less** than a traditional steel (iron I-beam) building. This significant reduction in weight not only translates into easier transportation and installation but also reduces labor costs and construction time.To validate the performance of the MHS interlocking connector system, extensive **monotonic and cyclic tests** were conducted at Smith Emery Laboratories under the supervision of licensed professional engineers in California, including John Latiolait and Andrew Tan. These tests were designed to simulate real-world stresses such as seismic forces, wind loads, and other dynamic forces. The test results demonstrated that the MHS system outperforms traditional framing methods in terms of strength, durability, and resilience, especially in earthquake-prone regions and other areas vulnerable to natural disasters.The aluminum interlocking connector system proved to be not only stronger but also more sustainable. Its key advantages include:- High durability and resistance to earthquakes, fire, flooding, and extreme wind (up to 170 mph).- Eco-friendliness due to aluminum’s 100% recyclability and renewability.- Dimensional stability that prevents issues like shrinkage, warping, or decay, which are common in wood and steel.- Lightweight structure that facilitates faster installation and reduces transportation costs.In summary, the inspiration for this breakthrough in structural connection design was rooted in the need for a more efficient, sustainable, and high-performance framing solution. The MHS system was validated through rigorous testing and has since proven its ability to meet the demands of modern modular construction while providing unmatched strength and resilience.

How does MHS Building Systems Structural Aluminum Framing Design address contemporary challenges in sustainable architecture, particularly regarding recyclability, relocatability, and the reduction of environmental impact?

MHS Building Systems Structural Aluminum Framing Design directly addresses contemporary challenges in sustainable architecture by integrating key principles such as recyclability, relocatability, and reducing environmental impact, which are essential for meeting today’s environmental goals.1. Recyclability: One of the core advantages of MHS Building Systems is the use of aluminum, a material that is 100% recyclable without losing its integrity or strength. Unlike traditional construction materials like wood or concrete, aluminum can be reused indefinitely, significantly reducing waste and conserving resources. This makes MHS an environmentally conscious choice, contributing to the circular economy by ensuring that the structural components can be repurposed at the end of a building's life cycle.2. Relocatability and Flexibility: MHS Building Systems are designed with relocatability and modular flexibility in mind. The prefabricated aluminum framing allows buildings to be easily disassembled and reassembled at different locations, providing a sustainable solution for evolving urban spaces. This relocatability reduces the need for new construction materials and minimizes environmental disruption, while also offering flexibility in design that traditional construction methods cannot match. Whether for residential or commercial use, the ability to adapt and move these structures aligns with the growing trend towards modular, adaptable spaces in sustainable architecture.3. Reducing Environmental Impact: MHS Building Systems go beyond recyclability and relocatability by focusing on reducing the overall environmental impact of construction. The system is part of the Advanced New Energy Efficiency Program (ANEP), which is aligned with the most stringent energy efficiency standards, including those set by California, Los Angeles, and the International Building Codes (IBC). This focus on energy efficiency ensures that MHS structures are not only green in their construction but also in their ongoing operation. MHS Green Homes provide **energy and water efficiency**, contributing to lower energy consumption and reduced carbon footprints.Additionally, MHS integrates advanced environmental technologies, including solar power and greywater systems, further enhancing the sustainability of its structures. The lightweight nature of aluminum also means that MHS buildings require less energy to transport and install, resulting in lower carbon emissions during the construction process.4. Durability and Low Maintenance: The durability of aluminum ensures that MHS structures are long-lasting and require minimal maintenance, further reducing the environmental impact over the building’s life cycle. The high corrosion resistance of aluminum makes it ideal for use in diverse climates, while also resisting mold, fire, and other environmental threats, reducing the need for frequent repairs or replacements that contribute to resource consumption.In conclusion, MHS Building Systems Structural Aluminum Framing Design addresses the contemporary challenges of sustainable architecture through its emphasis on recyclability, relocatability, and environmental efficiency. By using recyclable materials, designing for easy relocation, and incorporating energy-efficient technologies, MHS offers a forward-thinking solution that reduces the environmental impact of construction while meeting the needs of a modern, sustainable future.

Read the Full Interview

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties
MHS Building Systems, designed, patented, and developed by Architectural Engineer. A strong, yet lightweight, Aluminum Construction System, it's the perfect solution to meet the creative demands of modular unique projects, with endless possibilities, designers & contractors work together, to deliver sustainable prefabricated projects using MHS Structural Aluminum Framing and paneling systems. Almost any architectural residential and commercial buildings design up to 3 stories can be built with this certified method of modular prefab construction.
Dimensions & Packaging
The MHS Prefab Aluminum Post and Beam Framing can remain exposed to the interior and exterior of the building or covered with any enclosure building systems based on the architectural design. The Size of MHS-170 extrusion section is 170 mm x 170 mm.
Tags
#prefab #modulardesign #sustainable #aluminumstructure #building #prefabricated #adu #architecture #modern #mhs #designbuild #structure #modularhome
Production Technology
Research and Evaluation Report: LARR: 25703 (CSI # 06 12 00)
Department of Building and Safety – Los Angeles, CA, USA
General Building Codes Approval with Technical Modification for use of MHS building systems at Seismic Design categories A-F (LARR 25703) https://www.ladbsservices2.lacity.org/ResearchReport/reports/25703
Design Challenge
The unique simplicity and flexibility of this structure truly allows it to sit lightly on land and adapt to the nature of its environment as an optimal example of sustainability.
Research
After many years study and research start designing and manufacturing the actual structural extrusions and interlocking clamp by design. Next step to start testing the framing sections, wall and roof diaphragm at a professional certified laboratory in Los Angeles for many years based on California and international building codes. The testing result analyses and calculated by expert Structural Engineers to make sure the MHS structures meeting the Seismic Design categories A-F.
Inspiration
With my many years of research, knowledge and experience in the design and building industries, I was able to come up with an invention of durable interlocking connectors and the design of extrusion sections programming to create a unique Structural Aluminum Framing for architectural modular prefab design.
Project Duration
MHS's designer, inventor office located in Irvine, California,
Fabricator licensee: Los Angeles, Sacramento and Long Beach
Patents
Tim holds a USA and China patents (200610127616.0) of his invention. Modular aluminum systems with interlocking mechanism for prefab housing aluminum construction that used in conjunction with both EPS sandwich panel assembly and conventional materials for building industry.
Image Credits
All system development, products and materials protected under international and U.S. Patent, China Patent and Copyright Law.
© Tim M. Siahatgar, Architectural engineer is the original inventor of MHS Building Systems, Structural Aluminum Framing design.

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