| 大面积预应力混凝土框架结构合理配筋的探讨 |
| |
| 引用本文： | 张玉明,孟少平,高海宁,陆嘉平.大面积预应力混凝土框架结构合理配筋的探讨[J].工业建筑,2006,36(5):16-19. |
| |
| 作者姓名： | 张玉明 孟少平 高海宁 陆嘉平 |
| |
| 作者单位： | 1. 东南大学RC/PC结构教育部重点实验室,南京,210096
2. 常州工学院,常州,213002 |
| |
| 基金项目： | 教育部高等教育学校骨干教师项目 |
| |
| 摘 要： | 大面积预应力混凝土框架结构设计时一般将直接荷载产生的作用与温度、混凝土收缩产生的作用分开计算,分别配筋以满足裂缝控制的要求,这种做法不尽合理。确定预应力筋和非预应力筋用量时,应将框架梁按照拉弯(压弯)构件需求进行配筋。为解决超长预应力混凝土框架中间跨预应力损失较大的问题,可采取在中间跨增配预应力筋、利用后浇带或施工缝将预应力筋分区段张拉等措施。在次梁与板中为有效利用无粘结预应力筋,建议在板厚许可的情况下尽量采用曲线形预应力筋。
|
| 关 键 词： | 预应力筋 温度 收缩 预应力损失 张拉 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006年2月10日 |
STUDY ON REASONABLE REINFORCEMENT IN LARGE AREA PRESTRESSED CONCRETE FRAME STRUCTURES |
| |
| Zhang Yuming,Meng Shaoping,Gao Haining,Lu Jiaping.STUDY ON REASONABLE REINFORCEMENT IN LARGE AREA PRESTRESSED CONCRETE FRAME STRUCTURES[J].Industrial Construction,2006,36(5):16-19. |
| |
| Authors: | Zhang Yuming Meng Shaoping Gao Haining Lu Jiaping |
| |
| Affiliation: | 1 The Key Lab on RC/PC Structures of Ministry of Education, Southeast University Nanjing 210096; 2 Changzhou Institute of Technology Changzhou 213002 |
| |
| Abstract: | Effect of load and indirect load such as shrinkage, creep was often taken into account separately to satisfy the requirement of crack width in reinforcement design of large area prestressed concrete frame structures. It is less than reasonable. Frame beams should be reinforced as members subjected to flexure and axial force. Some effective measures were presented to solve bigger prestress loss of mid span in overlong frame and it is suggested that prestressed reinforcement with curve linetype should be adopted in slabs if possible. |
| |
| Keywords: | prestressed reinforcement temperature shrinkage loss of prestress tension |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
