Abstract:
Used Car Center structure is a building structure specifically designed to provide spacious parking lots. Foe years, numerous types and designs of steel structure have been development and built in used car center. In all, the wide-span steel structure is the most widely used steel structure. It possesses various physical details: types, spans, heights, parking spaces, availability for cars. The objectives of this research are to study the types of the wide-span steel structure for used car center in Bangkok. And to acknowledge the problems in the application of the wide-span steel structure as well as consolidate solid information used as basic background in selecting the most suitable wide-span steel structure type for used car center. From the study, there are 5 Bangkok areas where used-car mostly congested: (1) Ratchadapisek (2) Chokecchai 4 (3) Kaset Navamin-Ramindra (4) PuttamonthonSai1 (5) Pattanakarn. There are mainly 4 types of wide-span steel structure widely employed in the studied areas: (1) wide-span steel structure (2) Tent (3) Cable-stayed system (4) Membrane fabric. Based on the accumulated data and close observations, it can be summarized that in 5 studied Bangkok areas, the wide-span steel structure is most widely applied in 63 studied used car center samples. It is as well observed that (1) 25 samples use Flat truss wide-span steel structure (2) The span of steel structure is mostly 10 meters in length (3) The height of wide-span steel structure is mostly 6 meters. (4) The space under wide-span steel structure is mostly 301-400 square meters, which is available for 21-30 cars. There also found 10 problems that used car center entrepreneurs must be well aware of. However, the problems are not directly related to the building structure