会议室预应力混凝土曲梁往往具有跨度大、半径大、圆心角小等特点,预应力配筋主要应针对竖向平面内的弯矩,同时尽可能减小扭矩的作用。曲梁中预应力的效应应包含由于水平向等效荷载产生的分布等效扭矩。为了尽可能减小扭矩的不利作用,提出了预应力筋在截面横向偏置的布筋方式。实例计算结果表明,这一布筋方式在保证竖向平面弯曲效应的前提下,起到了降低扭矩峰值的作用。 The prestressed concrete curved beams in conference rooms tend to have the features of large span, large radius and small central angle. The prestressed reinforcement should mainly aim at the bending moment in the vertical plane while reducing the torque as much as possible. The effect of prestressing in curved beams should include the distribution equivalent torque due to the horizontal equivalent load. In order to reduce the adverse effect of torque as much as possible, a prestressing tendon transversely offset in the cross section was proposed. The calculation results show that this method can reduce the torque peak under the premise of ensuring the vertical plane bending effect.