| 1. | ( 4 ) the difference of the constraint conditions makes the second moment in prestressed frames less than that in the prestressed beams
( 4 )约束条件的不同使单层两跨预应力混凝土框架梁中的次弯矩要远小于两跨的预应力连续梁。 |
| 2. | 3 ) the relations between modulation of the secondary moment and modulation of load is very osculation . when becomes greater , modulation of the secondary moment becomes greater
（ 3 ）次弯矩的调幅和荷载弯矩调幅两者紧密相关，可以相互转化，此消彼涨， 。 |
| 3. | Then the proportion of the modulation of moment taken by the second moment in the total modulation in prestressed frame is less than that in prestressed beam
同时，次弯矩调幅占总调幅的比重在框架中要远小于连续梁。因此，次弯矩协助调幅的作用在框架中也弱于在连续梁中。 |
| 4. | The discussion is focused on the moment redistribution of the frames , the effects of the secondary moment and horizontal loads under the loads vertical and horizontal at the same time
分析了预应力框架中的次弯矩对弯矩重分布的影响以及水平荷载作用对弯矩重分布的影响。 |
| 5. | The authors provides a new method named limitation coefficient of tension stress method , which can calculate the quantity of prestressed tendons , taking the prestressing secondary moment into account
本文提出了计算预应力筋数量的“拉应力限制系数法”这一概念，并由之推导了考虑预应力次弯矩的计算公式。 |
| 6. | Crack of column equal to improve rotating ability of end of beam . therefore , it improves ability of moment modulation of end of beam . 9 ) the secondary moment has important influence on crack load
（ 9 ）次弯矩的存在对开裂荷载有较大的影响，在单层单跨框架中增加了梁端的开裂荷载，降低梁跨中的开裂荷载。 |
| 7. | 5 ) the secondary moment postpones coming of plastic hinge on frames . in other words , it reduces requisition of rotation ability of section . therefore , it maybe improve modulation ability of frame
（ 5 ）初始次弯矩的存在，推迟了梁端塑性铰的出现，也就是说降低了弯矩重分布对梁端转动能力的要求，从而有可能提高总调幅能力。 |
| 8. | 4 ) as designing , modulation of the secondary moment must be considered . but when the secondary moment is very great , the whole secondary moment as modulation is unfit . there maybe have a fit reducing coefficient
（ 4 ）设计调幅时，需考虑次弯矩调幅，但当次弯矩很大时，把次弯矩完全作为调幅是不适当的，应当有一相应的折减系数。 |
| 9. | For example still the arguments exist about the cracking controlling , the behavior of secondary moment and the re - distribution of internal forces , especially for the moment , of the prestressed concrete continues beam or frame
例如在对预应力混凝土连续梁和框架的裂缝控制、次弯矩以及结构的塑性内力重分布尤其是弯矩重分布这些问题上还存在着广泛的争论。 |
| 10. | ( 3 ) the relative height compressive zone of section greatly influences the redistribution of internal force of the prestressed frames . the total modulation of moment decreases according as the increase of relative height compressive zone of section
随着中支座截面相对受压区高度的增大，次弯矩增大，次弯矩调幅增大，但荷载弯矩调幅以更大的幅度下降，导致总的弯矩调幅下降。 |
