超长R·C·框架梁板结构温度及收缩钢筋计算

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CALCULATING OF TEMPERATURE AND SHRINKAGE REINFORCEMENTS OF OVERLONG REINFORCED CONCRETE BEAM-SLAB STRUCTURES

1.
1. College of Architecture and Civil Engineering,China University of Mining and Technology Xuzhou 221008;
2.
2. College of Civil Engineering,Southeast University Nanjing 210096

摘要: 介绍了一种有关温度及收缩内力计算的近似公式，并以规范裂缝宽度公式为基础，推导出可用来判断RC框架梁板结构各部分是否超长的温度及收缩界限内力公式;对超长者，给出了温度及收缩钢筋的计算公式和配筋建议，从而为其抗裂设计提供了一条有效途径和计算依据。
- 超长 /
- 裂缝 /
- 界限内力 /
- 温度及收缩钢筋
Abstract: For reinforced concrete beam- slab structures, the approximate formulas of temperature and shrinkage internal forces are introduced, and the formulas of critical internal forces of temperature and shrinkage, by which the overlong structural members can be judged, are deduced on the basis of the Code formula of cracking width. And for the overlong structures, the formulas of temperature and shrinkage reinforcements and some reinforcing measures are presented. All of these can be used as one of the effected ways and calculating basis for cracking resistance design of reinforced concrete beam-slab structures.
- overlong /
- crack /
- critical internal force /
- temperature and shrinkage reinforcements