利用环孔法对混凝土结构现存应力的测定
he extant stress of the concrete structure measured by the ring-drilling method
现存应力的测定对分析在役桥梁的病害成因起着至关重要的作用。本文以3米长的矩形截面预应力混凝土简支梁为例。根据钻孔得到的真实数据，利用ANSYS软件进行数值计算，给出了估算现存应力的经验公式。将计算结果和实测结果相对比，验证了该公式的实用性。从而为同类桥梁的试验结果提供参考依据。
he measurement of the extant stress is a very vital role in analyzing the reason of the questionable bridge in service. In this paper, the pre-stressed concrete beam with rectangular cross-section, which is 3 meters long, is used as a example. According to the real drilling data, numerical calculation is made by using the ANSYS software. The empirical formula is given for the extant stress. The calculated result is compared with experimental result in order to verify the practicality of the formula. So the reference is provided for the test of similar Bridges.
胡星、姜增国、刘玲晶
水工结构工程基础科学水工材料
现存应力环孔法预应力混凝土梁
Extant StressRing-drilling MethodPre-stressed Concrete Beam
胡星,姜增国,刘玲晶.利用环孔法对混凝土结构现存应力的测定[EB/OL].(2009-04-17)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200904-582.点此复制
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