| 1. | The time is longer , the measurement of the springing quantum of the pc beams due to concrete creep is bigger
起拱度因受混凝土徐变的影响随时问的增长而增大。 |
| 2. | ( 3 ) the deflection upwards of simple supported beam is calculated by the means of unites elastic and plastic analysis into finite - element theory
( 3 )利用混凝土的弹性徐变计算理论对预应力混凝土简支t梁的起拱度进行了编程计算。 |
| 3. | The deflection upwards of prestressed concrete beam can be predicted much accurately than before and mastered effectively through the massive work of this paper
通过本文的大量工作证明，预应力混凝土桥梁的起拱度是可以较精确地预估并进行有效控制的。 |
| 4. | ( 2 ) deflection upwards is programmed and estimated precisely on the concise calculation model . ( 3 ) effective methods in design and construction are provided to control over - deformation
( 2 )利用简洁有效的计算模型较精确地预估了预应力混凝土t梁的起拱度，并编制了相应的计算程序。 |
| 5. | ( 4 ) by this programme the deflection upwards of several bridges on the wuhan outer circumferential highway are calculated , through which to find out the main effective factor
( 4 )利用电算程序对武汉外环高速公路上的多座预应力混凝土t梁进行计算，从中找出影响预应力混凝土桥梁起拱度的主要因素。 |
| 6. | Regard background as practical construction project , with abroad and rational analysis , the major work is described as follows : ( 1 ) influencing factors of deflection upwards in prestressed concrete beam is analyzed in detail
本文通过结合实际的工程项目，收集了大量的数据资料，主要进行了以下几项工作： ( 1 )较细致地分析了影响预应力混凝土桥梁起拱度的各项因素。 |
| 7. | Therefore , the precise estimate for deflection upwards of prestressed concrete bridge , from which searching for the reasonable design and construction method , is very important for practical projects . the theme of this paper is to solve the problem about how to determine the deflection upwards precisely and to seek the control methods of over - deformation
因此，对预应力混凝土桥梁的起拱度进行较精确的预估，利用计算的起拱值来寻求更为合理的设计和施工控制方法，从而对工程实践具有较强的指导意义。 |
