超长混凝土框架结构中温度应力的研究

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基金项目:

南京市建委资助项目(批准号:2002-17)

RESEARCH ON TEMPERATURE STRESS OF CONCRETE FRAME STRUCTURES WITH LARGE LONGITUDINAL LENGTH

1.
1. The Key Lab on RC/PC Structures of Ministry of Education,Southeast University Nanjing 210096;
2.
2. Changzhou Institute of Technology Changzhou 213002;
3.
3. Nanjing Bureau of Housing Management Nanjing 210010

摘要: 温度应力是混凝土超长框架结构中需要解决的主要问题。将温度应力区分为轴力引起的平均应力和弯曲引起的局部应力,并提供了一种简便的计算方法来计算。通过分析,比较了两种应力的不同特点和分布形态。算例计算表明,所提供的估算方法具有良好的计算精度。
- 框架 /
- 超长 /
- 温度应力 /
- 应力分布
Abstract: Temperature stress is one of the key problems needed to be solved in concrete frame structures with large longitudinal length.In this paper,the temperature stress in the slab of the frame is divided into two parts.One is averagely distributed,which is caused by the axial forces,while the other is located in a limited region,which is caused by the bending of the columns and the beams. Simplified calculation equations are also provided,and the distribution characters of these two types are analyzed and compared.Numerical example shows the promoted equations are easy to use and have fairly good accuracy.
- frame /
- large longitudinal length /
- temperature stress /
- stress distribution