First known studies of Space Frame Roof Systems were made by Alexander Graham Bell between 1898 and 1908 to compose hulls of some air and naval vehicles. Bell had sought to the lightest and strongest structures with tetrahedral geometry with these constructions.
For more than a 100 years, many engineers worked on the details of the similar structures, and many different types of structures survived to this day. One of the most important of them, The MERO system developed by Dr. Ing. Max. Mengeringhousen in 1943, had high quality steel spheres with full body as knot members. Additionally, many construction systems and knot details were developed and applied by the engineers.
Space frame structure systems are optimum constructions composed with bar parts and knot components. With the principle of joining all the rod parts at the nodes, the moments are reset at the nodes and accordingly the calculations are made with the assumption that the rod parts forming the structure only work against the tensile force and pressure. As a result of these calculations, highly optimized and very light and strong roof constructions can be designed.
POLARKON does its own architectural and static designs of constructions in the projects it undertakes with the in-house Architectural Design and Structural Design offices.
In these projects, POLARKON sees cooperation and coordination needed to complete the work as being critical to the successful completion of the project. For this reason, as with all the other phases of the project, cooperating with other project groups at the design phase is taken as POLARKON’s duty.
As a part of the design studies,
In accordance with the application projects given by the employer;
POLARKON has carried out all its production in accordance with national and international quality standards and has designed and set up an ISO quality management system suitable for manufacturing space frame systems with the aim of creating an effective control system at every phrase of the work.
This system consists of instructions and procedures that describe all the operations starting from the project phase to purchasing, material supply, storage, manufacturing, testing, shipping, installation and post-installation inspection.
POLARKON quality control supervisor and responsible staff consistently and regularly serve to supervise and improve the whole system.
Briefly, according to this quality control system,
All the required materials are ordered after receiving offers from approved suppliers of POLARKON,
The ordered materials are accepted after necessary tests are carried out according to the acceptance procedures defined within the content of the quality management system,
At the manufacturing phase, all intermediate inspections are carried out by quality control staff and each process is recorded.
In addition to physical inspections and measurement controls, mechanical impact and non-impact tests are performed periodically.
Electrostatic powder coating and metal coating processes are inspected by measuring the coating thicknesses afterwards with digital measuring instruments, mechanical holding tests for each drying process are held and recorded regularly.
As the result, every project carried out by POLARKON is made with a production code and all the tests and monitoring that follow are recorded regularly within the framework of the quality control plan.
All of the installation process of the space frame systems at POLARKON is made according to the installation plan made beforehand with the preliminary examinations done at the installation area.
The POLARKON installation staff prepares an installation project for each job, taking all the elements into account, including the environmental conditions of the area, the conditions of the region, the suitability of the installation team, the installation processes and the static requirements, etc. and the applications are planned and done according to this project.
Daily activities are recorded in detail in the Daily Activity Report (GFR) and shared with the center. In this way, the project can also be followed from the center.
At the end of the installation and during the installation phases deemed appropriate by the head office; physical inspections, measurements and post-installation inspections are carried out and reported by POLARKON technical staff to determine whether the work is completed as it was designed into the project.