The Objetive of this paper is to help to make decision of the appropriate structural types in long span strudured building due to range of span. For the intention, based on 7 forces of strudural element, it is analized the relationships among 6 configurations of strudural element(d/1), 25 structural types, 4 materials, and span~Iength known with 186 sample from 1850 to 1996 1) bending forces: club(1/100~1/10), plate(1/100~1/10), rahmen(steel, 1O~24m) simple beam(PC,1O~35m) 2) shearing forces: shell(1/100~1/1000) hyperbolic paraboloids(RC,25~97m) 3) shearing+bending forces: plate, folded plate(RC,21~59m) 4) compression axial forces: club, arch(RC, 32~65m) 5) compression+tension forces: shell, braced dome shell(RC, 40~201 m), vault shell(RC, 16~103m) 6) compression+tension axial forces: rod(1/1000~1/100), cable(below l/1000)+rod, cable+rod+membrane(below 1/1000), planar truss(steel, 31~134m), arch truss(31~ 135m), horizontal spaceframe(29~10 8m), portal frame (39~55m), domical space truss(44~222m), framed membrane(45~1 1Om), hybrid membrane (42~256m) 7) tension forces: cable, membrane, suspension(60~150m), cable beam(40~130m), tensile membrane(42~136m), cable -stayed(25~90m), suspension membrane(24~97m), single layer pneumatic structure(45~231m), double layer pneumatic strudures(30~44m)

• 양재혁(동의대학교 건축학과 조교수) | Yang, Jae-Hyuk