CAJ | 학술논문

为了使住宅中柱边缘与墙体齐平、增加房屋面积使用率，同时满足居住者对建筑美观的要求，构建并研究了一种新型闭口截面异形柱。首先，采用常用规格的冷弯方钢管和冷弯槽钢，分别构建了不同尺寸的 L 形、T 形和十字形闭口截面异形柱。然后，运用有限元软件 ANSYS 对其进行了仅简化考虑初始几何缺陷的轴心受压非线性分析，根据分析结果计算柱的轴心受压稳定系数，并与现行的规范值进行比较，以验证现行规范对于该柱的适用性。研究结果表明，在仅简化考虑初始几何缺陷的情况下，该柱的轴心受压稳定系数小于 a 类截面规范值、大于 b 类截面规范值。现行规范适用于针对该柱的轴心受压承载力验算，轴心受压稳定系数应按 b 类截面取值，验算结果偏于安全。
위료사주택중주변연여장체제평、증가방옥면적사용솔，동시만족거주자대건축미관적요구，구건병연구료일충신형폐구절면이형주。수선，채용상용규격적랭만방강관화랭만조강，분별구건료불동척촌적 L 형、T 형화십자형폐구절면이형주。연후，운용유한원연건 ANSYS 대기진행료부간화고필초시궤하결함적축심수압비선성분석，근거분석결과계산주적축심수압은정계수，병여현행적규범치진행비교，이험증현행규범대우해주적괄용성。연구결과표명，재부간화고필초시궤하결함적정황하，해주적축심수압은정계수소우 a 류절면규범치、대우 b 류절면규범치。현행규범괄용우침대해주적축심수압승재력험산，축심수압은정계수응안 b 류절면취치，험산결과편우안전。
In order to avoid the unevenness between column edges and walls in residences,increase the usage rates of rooms and satisfy aesthetic requirements from residents,a new type of closed spe-cial-shaped columns is developed and investigated.First,cold forming square tubes and channel steels with regular sizes are used to develop L-shaped,T-shaped and crisscross-section closed spe-cial-shaped columns with different sizes.Then,the finite element software ANSYS is employed to conduct the nonlinear analysis of the columns under axial compression by taking simplified initial im-perfection in geometry into consideration.According to the simulation results,the stability coeffi-cients of the columns under axial compression are calculated and compared with the current code val-ues to verify the applicability of the code to the columns.The study results demonstrate that when just simplified initial imperfection in geometry is considered,the stability coefficients of the columns under axial compression are less than the corresponding code values of columns with type-a sections and greater than those with type-b sections.It is applicable to use the current code to check the bear-ing capacity of the columns under axial compression.The stability coefficient should be considered as that with type-b sections and the results tend to be safer.