Tekla Structures

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Tekla Structures
Developer(s) Tekla
Stable release 21.0 / March 2015
Operating system 32/64-bit Windows
Type CAD Building information modeling
License Proprietary
Website Tekla Structures [1]

Tekla Structures is Building information modeling software that allows construction industry work more efficiently in 3D environment. Our Building Information Modeling (BIM) software solutions are used around the world to create, combine, manage and distribute accurate, constructable multi-material models of all structures from residential buildings and offshore platforms to complex landmark structures. It allows users to design a building structure and its components in 3D modeling, generate 2D drawings and access building information.

We have an open approach to BIM. The software interfaces with other solutions and manufacturing machinery for efficient and error-free collaboration. With Trimble and partners, Tekla's BIM software can cover the entire construction workflow from structural design to manufacturing to site. Tekla provides construction industry a chance to achieve greater competitive edge with Building Information Modeling (BIM) and Structural Design software. Tekla Structures is used by customers in over 100 countries, with Tekla offices in over 20 countries, and a global partner network.


By the mid-1960s, computers and automatic data processing were well established in Finland. Companies that performed advanced engineering computing had also adopted Automatic Data Processing (ADP).

Due to the ever-increasing amount of computing work and lack of resources, a group of engineering offices established a joint software company. The company, named Teknillinen laskenta Oy ("technical computing") was registered in February 1966. The same spring, the company trading name was abbreviated to Tekla. Tekla's first office was located in Helsinki, Finland.

The foundation for Tekla's operations was defined as ADP consultation, computing services, training courses and software development. Six planning committees were formed in 1967 for the latter purpose, representing the different industries of the shareholding companies. The goal of the planning committees was to define the features of common software in cooperation with Tekla employees.

In fact, these committees created the model for Tekla's future way of working: starting projects to develop new programs in conjunction with customers.



Teknillinen laskenta Oy is established in Helsinki. Tekla is adopted as new trade name. Reino Heinonen is appointed as the company's Managing Director.


Focus of software development shifts to structural engineering, road building and earth-moving.


Tekla opens a remote connection to Nokia's computing center.


Tekla opens a fixed remote line to the Control Data Corporation computing center in Stockholm and obtains its first Scandinavian customers.


Tekla begins FEM (Finite Element Method) computation and gains customers in the mechanical engineering industry.


Plotter software and graphic printing are adopted.


Tekla acquires its first main computer (Perkin Elmer).


The company adopts Tekla Oy as its legal name.


All designers and programmers get an alphanumeric terminal of their own.


Tekla develops virtual database technology: the use of relational databases becomes notably faster.


Tekla's first successful systems that combine graphics and a relational database are completed.


Tekla begins developing its own technical tools, "kits", for software development.


All of Tekla's new software development projects are moved to the Unix environment using the company's own technical tool (GISbase).


Tekla's first X product, Xroad for road planning, is launched, followed by Xcity for urban planning.


The Xpower network information system for electricity utilities is followed by a similar system for telephone companies: Xcable.


The commercial version of the structural steel engineering software Xsteel is completed.


Tekla's quality system is certified.


A subsidiary is established in Sweden. Tekla's transfer to the Windows environment begins with the Xforest software product.


Tekla completes its first Internet technology application: WebMap for municipalities.


Tekla's long-term Managing Director Reino Heinonen is followed by Seppo Ruotsalainen. Tekla establishes a subsidiary in Malaysia.


Tekla establishes subsidiaries in the United States, the United Kingdom, Germany and Japan.


Tekla is listed on the Helsinki Stock Exchange. The company buys the French company SMRT, which becomes Tekla's subsidiary Tekla Sarl. Tekla also starts subsidiaries in Norway, the United Arab Emirates and Brazil, and a representative office in China.


Tekla divests its Xcable, Xenvi and Xforest operations and buys customer information system business and related services from Finnish Enfo Plc.


Seppo Ruotsalainen resigns in November, and Heikki Multamäki is appointed as the company's acting President and CEO. Tekla introduces extranet and intranet network services developed for energy companies.


Microsoft .NET software development environment is adopted.


Ari Kohonen starts as President and CEO. The business acquired from Enfo is sold to TietoEnator. Tekla Structures structural engineering software (based on Xsteel) is launched.


Tekla's 40th anniversary. Tekla establishes a liaison office in India.


Tekla sells its project-based Defence business to Patria. Tekla establishes an office in Denmark.


More than 80% of net sales comes from international operations. Tekla has an own office in 12 countries and a worldwide partner network. Tekla's software products and services are used in more than 80 countries.


In February Tekla Malaysia opens a representative office in Jakarta, Indonesia and another in July in Bangkok, Thailand. More than 16,000 Tekla Structures licenses are sold globally.


More than 18,000 Tekla Structures licenses are sold globally. Tekla has customers in nearly 100 countries. In February Tekla receives the 2009 Internationalization award from the President of the republic of Finland. In the same month, Tekla establishes an office in Singapore to serve as the Tekla hub for South East Asia.


Tekla becomes part of Trimble Group.


Tekla is outlisted from the Helsinki Stock Exchange.


Tekla leverages the work of Trimble Buildings and Trimble Infrastructure division.


CSC becomes part of Tekla.

Facts and Figures[edit]

    • Established in 1966
    • Two business areas: Building & Construction and Energy & Public Administration
    • Headquarters in Espoo, Finland
    • Global presence: offices in more than twenty countries, a worldwide partner network, and customers in over 100 countries
    • Employs nearly 600 people
    • Tekla became part of Trimble Navigation Ltd. in 2011.


Tekla develops model-based software products for the architectural, engineering, and construction (AEC) market, for local government use and for power companies. These products provide users with state-of-the-art features and functionality for creating, analyzing, and changing model-based information. Feasible implementation of the products is made possible by Tekla’s own technology platform and architecture.

Tekla applications manage large amounts of complex information. This information has a multi-dimensional geometric or locational component. It is not, however, managed through a drawing or map or 3D visual approach; instead, the information is stored in a data model.

The advantages of a data model approach are obvious: data model evolution, multi-user access, availability in other applications, and other important requirements are easy to fulfill. Since sufficient support for the geometry or location component of the information is not readily available in data model tools, Tekla has gone through a great deal of its own development in this area.

How model-based information is used[edit]

One way to demonstrate the advantages of the model-based approach is to look at the evolution of a data model. As an example, during the last decade it has become increasingly necessary to support the time dimension in the 3D model for construction design. Due to the flexible nature of data models, adding the fourth dimension was very straight forward. Another trend is the growing role of cost information as the 'fifth dimension'.

Advances in communication technologies have made collaboration between people and companies working on a same project first of all possible and secondly necessary. The model-based approach readily supports this source of improved productivity through the natural ability to create new models from the combined information of multiple data sources. Sharing a model or the exchange of changes to a model are all built-in services in model-based systems.

Tekla software architecture[edit]

Implementing a model-based system that manages financial data or customer information is relatively easy, since there are many tools for creating these horizontal applications. For many vertical markets, such as those that Tekla works with, there are no tools available or they provide insufficient performance or feature sets.

To be able to support all the needed functionality at the required performance level also with large models, Tekla has designed a software architecture that combines available technologies with custom-built ones.

The underlying foundation is Microsoft’s .NET technology and its development tools. The .NET provides a vast amount of basic software development services and offers the highest available level of productivity for Tekla and its partners. .NET is also the industry standard in interconnecting desktop applications.

Tekla’s technology platform, Tekla Technology, provides the tools required for the model-based approach. The data model needs to work in an intelligent way and maintain full integrity at all times, and changes to it need to be visualized immediately. For example, when the profile of a beam in a structural model is modified, changes need to propagate to a number of connections and other parts in the model.

Making sure that the model always behaves as needed without delay is what customers expect of Tekla. Keeping this promise allows our customers to reach the levels of productivity and quality they need to remain competitive in their own fields.



Concrete Contractors: Model, plan and pour concrete

General Contractors: Manage risk and plan for successful construction process.

Process & Plant: Engineering, procurement and construction process benefits

Offshore: Save time and money: faster design and detailing and fewer clashes on assembly


Students: Learn Building Information Modeling for free

Educational Institutions: Make your students focus on the essence of structural engineering.


Structural Engineers: Achieve the highest quality with construction-oriented engineering

Infrastructure Designers: Design different types of infrastructures and manage infrastructure data


Steel Fabricators: Manage detailing, fabrication and erection of all steel structures

Precast Fabricators: Optimize the entire precast workflow from bidding to delivery

Rebar Fabricators: Manage prefabrication of rebar and reduce total cost and time

Transmission Towers: Increase productivity of modeling all kinds of transmission and telecommunication


Tekla Structures: Models created with Tekla BIM software carry the accurate, reliable and detailed information needed for successful Building Information Modeling and construction execution. Welcome smoother workflow to your company with Tekla Structures and constructable models.

Tekla works with all materials and the most complex structures – you set the limits. Our customers have used Tekla Structures to model stadiums, offshore structures, plants and factories, residential buildings, bridges and skyscrapers.

Tekla Structural Designer: Fully automated and packed with many unique features for optimized concrete and steel design, Tekla Structural Designer helps engineering businesses to win more work and maximize profits. From the quick comparison of alternative design schemes through to cost-effective change management and seamless BIM collaboration, Tekla Structural Designer can transform your business.

Tekla Tedds: Tedds is powerful software to automate your repetitive structural calculations.

Choose from one or more of our regularly updated calculation libraries or write your own, and create professional documentation every time. Combine your structural calculations with 2D frame analysis.

Tekla BIMsight: Tekla BIMsight is a professional tool for construction project collaboration. The entire construction workflow can combine their models, check for conflicts and share information using the same easy to use BIM environment.

Tekla BIMsight enables project participants to identify and solve issues already in the design phase before construction.

The award-winning Tekla BIMsight is free to download. Over 150,000 professionals in the construction industry have already taken Tekla BIMsight into use in over 160 countries.

Tekla Field3D: Tekla Field3D is an easy-to-use 3D tool for utilizing Building Information Models (BIM) on mobile devices. Not only does it handle very large models, it also has many useful and easy functions for viewing and extracting 3D model information. It works fluently on both Apple and Android devices.

Tekla Field3D supports a new way of working with AEC models through the building lifecycle from design to demolition. With Tekla Field3D, even stakeholders without desktop BIM software can combine and view 3D models. It is the high-performance IFC viewer for mobile that allows you to view and share 3D models and communicate anywhere, on the go.