During the construction process of the spillway gates of a reservoir dam,cracks are observed in the overflow weirs and the gate piers.Numerical simulation analysis under the corresponding working conditions shows that before the strength of the concrete poured earlier in the lower part of the cracking positions reaches its standard value,the concrete poured later in the upper part has already acted as a load on it,resulting in excessive tensile stress in the lower part con-crete structure which exceeds its actual bearing capacity.The original designed spillway gate structure is of a low stress level after completion,while cracks are observed already,which break the integrity of the structure.Thus,targeted re-inforcement treatment measures are suggested.
关键词
泄洪闸/闸墩/混凝土开裂/数值模拟/有限单元法
Key words
spillway gate/gate pier/concrete cracking/numerical simulation/finite element method
维普
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