【摘要】 为了推广 5 0 0级螺旋肋钢筋在实际工程中的应用 ,按照相关规范 ,对其基本材性及其作主筋的受弯构件承载力及裂缝、刚度等性能进行了试验研究 .试验表明 ,螺旋肋钢筋锚固性能优良、延性好 ;其受弯构件具有较好的受力性能及延性表现 .通过与现行规范的对比计算可见 ,此类钢筋作主筋的受弯构件可按现行规范 (GBJ 1 0 - 89)进行设计 ,钢筋设计强度偏于安全取为 36 0MPa ,可广泛用于平板及小梁等非预应力构件 .更多还原

【Abstract】 In order to extend the use of the steel with spiral ribs (500 MPa),the mechanical properties of the steel and the members under flexure reinforced with it are studied in the experiments according to some codes.The steel has excellent ductility and excellent bond with concrete;good properties (strength,cracking and stiffness) and good ductility of the members are showed in the experiments.Through comparing with the results calculated from the code,it proves that the members can be designed according to the current code (GBJ10-89) and that 360MPa can be selected as the designed strength of this steel.更多还原