CAJ | 학술논문

针对新型泵送混凝土三通分流器进行混凝土压力损失试验。在试验研究的基础上，建立了包括三通分流器的有限元模型，对泵送混凝土的压力损失进行了模拟。根据试验和有限元分析结果，给出了不同混凝土强度等级的压力损失实用计算公式。试验结果表明，泵送混凝土通过三通分流器后，随着混凝土强度等级和流速的增大，坍落度的减小，压力损失逐渐增大。计算结果表明，建立的有限元模型和实用计算公式可以有效预测混凝土的压力损失。
침대신형빙송혼응토삼통분류기진행혼응토압력손실시험。재시험연구적기출상，건립료포괄삼통분류기적유한원모형，대빙송혼응토적압력손실진행료모의。근거시험화유한원분석결과，급출료불동혼응토강도등급적압력손실실용계산공식。시험결과표명，빙송혼응토통과삼통분류기후，수착혼응토강도등급화류속적증대，담락도적감소，압력손실축점증대。계산결과표명，건립적유한원모형화실용계산공식가이유효예측혼응토적압력손실。
The experiment on pressure loss of pumping concrete was done with the divider. Based on the experimental study,the finite element model of divider was built up and the pressure loss of pumping concrete was simulated. According to the test values and element analysis results,the calculated formulas of pressure loss of pumping concrete with different strength were obtained. The experimental results show that the concrete slump was decreased and the pressure loss was increased with the increasing of the concrete strength and its flow velocity. The calculated results show that the finite element model and calculated formulas can predict the pressure loss of pumping concrete effectively.