Our company, DYWIDAG-Systems International USA Inc., is part of the international DSI Group. DSI’s scope of business is the development and application of Post-Tensioning and Geotechnical Systems for the Construction industry. DYWIDAG-Systems International USA Inc. was incorporated in 1969, in New York.
Luxembourg, February 2nd 2016 - Jennmar and DSI have signed an agreement under which DSI will acquire Jennmar businesses in Australia, Europe, Latin America and China (50% share). Jennmar China, along with well-established jointly owned businesses in South Africa and Australia, will operate under the ROCBOLT Technologies brand.
The Post-Tensioning Institute (PTI) was established in 1976 and is recognized as a global authority on post-tensioning. Every year, the organization awards innovative construction projects in order to point out excellence in Post-Tensioning applications.
Many projects using post-tensioning as a structural component were submitted. Awardees were selected by a jury of industry professionals and were judged based on factors such as innovation, effectiveness, functionality, or aesthetics. This year, two projects that DSI supplied Post-Tensioning products and systems for received PTI awards.
The Award of Merit for Industrial/Special Applications went to the Twin Vehicular Jacked Box Tunnels for the Liberty University in Virginia, USA. The university campus’s only connection to a highly frequented road was via a dangerous access road, which is why a direct access tunnel was built through a railway embankment. In order to prevent disruptions to railroad traffic, the Jacked Box Method was used for the first time in the USA.
6 Type 27-0.6” DYWIDAG Strand Tendons were fastened to the tunnel culverts on one side and attached to a temporary retaining wall using tensioning jacks on the other side of the embankment. The tensioning jacks pulled the tunnel segments step by step through the embankment.
The jury commented that this project was efficient and unique in that it kept traffic above the tunnels active and that there was an “out-of-the-box” thinking process to pull the out instead of using a high-cost approach of pushing the tunnel through.
The Canadian Glacier Skywalk received the Award of Excellence in the same category. The Skywalk is a platform with a glass floor on a steel frame extending from a cliff at 280m height. The platform provides tourists with an impressive view of the Sunwapta Valley with its glacier fields.
The skywalk is supported by 600t of cantilevered, trapezoidal box girders secured onto tied back foundation blocks. DSI Canada supervised the construction work on site, provided technical assistance and supplied (DCP) DYWIDAG Rock Anchors, GEWI® Micropiles, THREADBAR® Tendons, DYWIDAG Anchor Bolts and DYWIDAG Strand Tendons for this project.
The jury found the Glacier Skywalk ingenious and creative and complimented the multiple uses of post-tensioning to anchor the structure and to control flexion.
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By utilizing the DSI benefits of professional experience, superior Quality Assurance, and accurate on-time delivery schedules, Drill Tech Drilling and Shoring was able to adjust to the ever changing project requirements on the I-405 Widening at Sepulveda Pass. DSI offers a unique combination of both technical support and creative field solutions that promote a productive work environment.
Project Manager I-405 Sepulveda Pass Widening
Protendidos DYWIDAG has contributed to countless jobsites of Camargo Corrêa - including the new Stay Cable Bridge in Laguna, Brazil. The Joint Venture Camargo Corrêa / Aterpa M. Martins / Construbase is pleased with the strong commitment of Protendidos DYWIDAG to maintain its good reputation for the DYWIDAG Bar Post-Tensioning System. DSI supplies products and services of excellent quality and always aims for the client’s satisfaction. We are very pleased with Protendidos DYWIDAG and would like to recommend them to companies that value high-quality engineering used for DYWIDAG Products.
DYWIT offers an extensive product range to solve different problems on the job site. DYWIDAG Bar Anchor Systems are very easy to apply and can be flexibly adapted to different requirements. DYWIT always provides very good technical support whenever needed.
DSI’s solutions and technical support have helped us to sustainably enhance our range of solutions for excavation stabilization by offering the DYWI® Drill Hollow Bar System as well as DYWIDAG Ductile Iron Piles.
General Manager CIMAR, S.L., Spain
We have had a partnership with Protendidos DYWIDAG for 30 years. We specialize in slope contention, and we know that the quality of the product is critical for the safety of our works. Our expectations of the products supplied by Protendidos DYWIDAG have always been met to our full satisfaction by the company.
Santos Mota Engenharia Ltda, Brazil
Knowing what to do, and doing it well and safely, corresponds to the philosophy of H Miranda Engenharia. DYWIDAG Systems fully match this philosophy. DSI offers high quality products that are characterized by reliability and safety and that our technical team likes to use.
Gustavo Grijó, Construction Management
H Miranda Engenharia Ltda, Brazil
The partnership with DSI allows us a safe and reliable accomplishment of demanding projects thanks to the company’s commitment.
Raphael Castro Vieira, Site Engineer
TL Mix Construções, Brazil
Due to the high mechanical strength, technology and high performance of the products supplied by Protendidos DYWIDAG, we can develop slender concrete elements with great structural capacity and therefore realize large spans. Thanks to the partnership with Protendidos DYWIDAG, we have been able to realize an innovative public transportation project in the city of São Paulo, Brazil, where we will put into operation one of the world’s highest capacity Monorails.
Ramon Garcia Junior, Production Engineer
Consorcio CEML – Consórcio Expresso Monotrilho Leste, Brazil
We like working with DSI Peru because they react quickly and efficiently whenever there is a problem. DSI does not only supply good products – the company distinguishes itself by the quality of its services.
DSI’s added value is defined by their excellent products, reliability, efficiency and problem solving capacities. All of these factors are reflected by the first class service DSI provides.
Ernesto Jordán Ballón, Administrative Assistant
Odebrecht-Consorcio Tren Eléctrico, Peru
DSI’s services have developed so well that both companies (client and supplier) have become partners in terms of the technical knowledge and the fast reaction times that DSI provides.
We like co-operating with DSI Peru because we can buy the perfect product for our applications from them, DSI Peru offers safety and quality and we trust in their experience and services.
Víctor Castagnola Pérez-Reyes, Procurement and Logistics Officer
Odebrecht-Consorcio Tren Eléctrico, Peru
We like working with DSI because we have found a flexible partner in you who perfectly understands our needs and provides excellent technical advice. In addition, DSI’s prices are adapted to the market, and the company’s good reputation is added value for our services.
Jonathan Venegas Jornet, Technical Manager
FLESAN S.A., Chile
To perform our work, we need to have the best products, ensuring the security of the enterprise. DSI helps us guarantee this because we deliver the best product, meet our deadlines and provide an excellent result. The partnership with DSI enables us to gain the satisfaction of our customers.
VALLUM Engenharia has been working in partnership with DSI for several years. During this period, we have obtained great results with DSI’s geotechnical systems. This results in guaranteed customer satisfaction and wins us new contracts. As a field engineer, I work directly with the products and I am involved in their application. That is why I can vouch for their quality and durability. We are looking forward to continuing this partnership.
VALLUM Engenharia Ltda., Brazil
DSI's support, product knowledge and technical experience have allowed us to deliver and perform above the expectations of the client. Site conditions and challenges have been proactively identified, mitigating down time and optimizing production and profitability.
Nick Baldwin, Project Manager
Beck Drilling and Environmental Services Ltd., Canada
We choose DSI because of their excellent service and support. The technical support is second to none. Their experienced and qualified professionals think outside the box and offer optional methods or concepts. They help us choose the right products for the job, and then deliver on time and in the correct quantities. Dakota Drilling owes a large part of its reputation and success to DSI.
Dakota Drilling, USA
DSI is integral in Foundation Technologies' tieback applications, and their product reliability is proven time and time again.
Foundation Technologies, USA
Throughout our longstanding relationship, DYWIDAG Systems International has consistently adapted to the dynamic Geotechnical industry by providing easy to use and innovative products. DSI's attention to detail and commitment to delivering on-time high quality products have alleviated the stress of procuring and receiving materials in our fast paced, difficult to access and remote jobs.
Adam Lowers, Superintendent
Northwest Cascade, USA
I have been working with DYWIDAG Systems International for many years because they always provide solutions that I can rely on. If the project requires a high level of knowledge and performance, I know I can count on DSI.
Claudio M. Dominguez, Project Manager
Orion Marine Construction Inc., USA
I wanted to thank you and DSI for offering such excellence in customer sales and support, engineering, and general knowledge sharing. You and the DSI engineers have been quick to respond to my quick turn-around deadlines, providing timely quotes and drawings, including installation recommendations and concerns. It is appreciated!
Kelli Wilson, President
American Shoring, Inc., USA