讨论了正常使用极限状态下，HRB400级钢筋混凝土梁的裂缝宽度和挠度能否满足规范限值要求。
Whether the HRB400 steel bars reinforced concrete beams can be met the limit of the maximum crack width and the limit of deflection is discussed.
地基梁可不进行承载能力极限状态的计算，其配筋可由正常使用极限状态中的允许裂缝宽度来确定。
Ultimate strength design is not required and the reinforcement can be determined only on basis of allowable crack width in design of beam on foundation.
通过25根钢筋钢纤维混凝土梁的试验，研究了影响钢纤维高强混凝土梁在正常使用极限状态下裂缝宽度的各种因素。
Based on an experimental study on 25 FRC beams, variables that affect the width of cracks in steel fiber reinforced high-strength concrete beams under normal service conditions are studied.
计算结果说明，无粘结部分混凝土构件的正常使用极限状态下的可靠性提高，设计规范的“特征裂缝宽度”计算公式有较高的可靠保证。
The results are shown that reliability level of the members are sufficient, the guaranteed reliability is higher using the calculating formulas of characteristic crack width of current design codes.
计算结果说明，无粘结部分混凝土构件的正常使用极限状态下的可靠性提高，设计规范的“特征裂缝宽度”计算公式有较高的可靠保证。
The results are shown that reliability level of the members are sufficient, the guaranteed reliability is higher using the calculating formulas of characteristic crack width of current design codes.
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