Abstract：Research purposes: The arrangementof reinforcement for arbitrarily shaped slab or slab subjected to biaxial loadshaspersecuted engineering designers fora long time. Unreasonable arrangementof reinforcementis amain factor to cause cracks and adversely affect durability and serviceability of the structure. When using working stressmethod for structural design, the arrangementof reinforcementcan be essentially considered as the calculation of stress, therefore,this paperpresents a general algorithm to solve the problem mentioned above.
Research conclusions:The essential of the algorithm is to create the equilibrium equations related to primarymoments,and an iterative approach is adopted to solve the equations to calculate concrete stress and reinforcement stress in reinforced concrete slab. A computer program corresponding to this algorithm is developed. A lot of real calculation examples show that this algorithm can obtain the fastconvergence in iterative process and accurate resul.t This algorithm can also simulate some special actions of loaded slabs. If this algorithm is used in actual design, it can calculate the theoretic areas of main bar and additional bar needed when the structure subjected to all kinds of load cases,furthermore, the envelop curve of steel area is captured forpractical application.
李 彬，金玉娟. 钢筋混凝土板应力计算的迭代方法[J]. 铁道工程学报, 2009, 26(12): 51-54.
LI B in, JIN Yu-juan. An IterativeM ethod forCalculation ofFlexuralStress ofReinforced Concrete Slab. 铁道工程学报, 2009, 26(12): 51-54.
2009, Vol. 26 
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