The first known studies of space frame construction systems were those made by Alexander Graham Bell between 1898 and 1908 with the aim of creating the hulls of some naval and air vehicles. Bell aimed to perform these constructions by creating the lightest and strongest structures with tetrahedral Geometry.
For more than 100 years , many engineers have worked on the details of structure in this field, and many different types of structure have survived to the present day. One of the most important of these is the one developed by Dr. Ing. Max Mengeringhousen in 1943 and recorded into literature with the name of MERO system where full body high quality steel spheres are used as nodal point elements. In addition, a large number of construction systems and the node details have been developed and implemented by engineers.
Space frame construction systems are systematic and optimal constructions consisting of Rod elements and nodal elements. By the principle of combining all rod elements in nodes, the moments are avoided in nodes, and accordingly, the rod elements that make up the structure are calculated only by the assumption that they resist against tensile and compression only. Optimized and extremely light and strong roof constructions can be designed as a result of these assumption.
The basic element that includes the prefabricated structure attribute which space frame systems have is the modular system concept making up the structure. The module type making up the structure can be square, rectangular, triangular, hexagonal in shape when the selection made at the design stage.
In module selection, economy, ease of manufacturing and installation, structural analysis requirements to be performed under the loads exposed to the system, geometric conditions (axle intervals, etc.) and aesthetic elements should also be taken into account.
POLARKON carries out architectural and static designs of the constructions that undertakes within the company based Architectural and Structural Design Office.
POLARKON consideration is important and necessary to carry out all its work in cooperation and coordination with other-partners necessary for the construction of the work. For this purpose, POLARKON provides the necessary contribution at the highest levelfor necessary cooperation with other project groups, during the design and phase of the construction.
Within the scope of preliminary design studies,
In accordance with the final design given by the employer;
POLARKON carries out its production in accordance with national and international quality standards and has designed and established an ISO quality management system in order to create an effective inspection at every stage of its work for the space frame systems elements.
The system in question consists of written instructions and write procedures that describe all operations, starting with design work, purchasing, material supply, storage, manufacturing, testing, shipment, assembly and post-assembly controls.
POLARKON quality control oficce personnel provide continuous and regular service in order to control and improve the whole system.
In summary, inspection of production is completed with the quality control system in question;
All orders for the supply of the necessary materials are made by receiving offers from POLARKON's approved suppliers,
All materials are accepted after necessary tests in accordance with the acceptance procedures defined in the purchase procedures established within the framework of the quality management system,
During the manufacturing phase in every step inspected by quality control staff and each process is recorded.
In addition to physical examination and measurement checks, mechanical destructive and non-destructive tests are carried out periodically.
Electrostatic powder coating and metal coating operations, coating thickness checked by numerical measuring devices, mechanical adhesion tests performed for each elements after coating and are recorded regularly.
In brief each project that is under production in POLARKON's yard is produced with a production code and all tests and controls are monitored and recorded within the framework of the quality control plan.
Space frame systems are realized in accordance with the pre- planning and assembled in according the plans. The inspection a made at the installation site during all assembly phase of the work.
POLARKON assembly experts prepare an assembly project, taking into account all aspects such as the environmental conditions of the site , the facilities of the region, the competency of the field team and the assembly processes in addition to static requirements for each work, etc.
Daily activities are recorded with the details in daily activity report (GFR) and they are shared with the main office. This way, monitoring of work can be followed up by the main office.
Physical inspection , measurement and post-assembly inspections are carried out and reported by POLARKON technical staff at the work site and at the end of the assembly. Final reports of completion approved by POLARKON.