噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2014年
5期
125-129
,共5页
振动与波%钢管再生混凝土%桥梁结构%抗震性能%分析
振動與波%鋼管再生混凝土%橋樑結構%抗震性能%分析
진동여파%강관재생혼응토%교량결구%항진성능%분석
vibration and wave%recycled aggregate concrete filled steel tube%bridge structure%seismic performance%analysis
用再生骨料混凝土作为钢管混凝土结构的填充材料，形成钢管再生混凝土结构，研究钢管再生混凝土拱桥拱肋的抗震性能，以某单跨中承式拱桥为例，建立计算模型，分析结构模型的动力特性，计算了拱肋结构不同截面的弯矩响应峰值和轴力响应峰值，同时研究得出了不同再生骨料替代率的钢管再生混凝土结构5个屈服阶段的抗震评估曲线。通过比较计算，所得出的内力响应峰值和抗震评估曲线的关系，得出了拱肋结构的抗震性能。计算结果表明，钢管再生混凝土应用于拱肋结构有着较好的抗震性能，不同替代率的再生骨料对钢管混凝土拱桥结构拱肋抗震性能影响程度较小。
用再生骨料混凝土作為鋼管混凝土結構的填充材料，形成鋼管再生混凝土結構，研究鋼管再生混凝土拱橋拱肋的抗震性能，以某單跨中承式拱橋為例，建立計算模型，分析結構模型的動力特性，計算瞭拱肋結構不同截麵的彎矩響應峰值和軸力響應峰值，同時研究得齣瞭不同再生骨料替代率的鋼管再生混凝土結構5箇屈服階段的抗震評估麯線。通過比較計算，所得齣的內力響應峰值和抗震評估麯線的關繫，得齣瞭拱肋結構的抗震性能。計算結果錶明，鋼管再生混凝土應用于拱肋結構有著較好的抗震性能，不同替代率的再生骨料對鋼管混凝土拱橋結構拱肋抗震性能影響程度較小。
용재생골료혼응토작위강관혼응토결구적전충재료，형성강관재생혼응토결구，연구강관재생혼응토공교공륵적항진성능，이모단과중승식공교위례，건립계산모형，분석결구모형적동력특성，계산료공륵결구불동절면적만구향응봉치화축력향응봉치，동시연구득출료불동재생골료체대솔적강관재생혼응토결구5개굴복계단적항진평고곡선。통과비교계산，소득출적내력향응봉치화항진평고곡선적관계，득출료공륵결구적항진성능。계산결과표명，강관재생혼응토응용우공륵결구유착교호적항진성능，불동체대솔적재생골료대강관혼응토공교결구공륵항진성능영향정도교소。
Anti-seismic performance of the recycled concrete-filled steel-tube arch ribs is studied. The model for a single span and half-through arch bridge is established, and its dynamic characteristics are analyzed. The peaks of the bending moment response and axial force response in different sections of the arch ribs are calculated. Meanwhile, the seismic evaluation curves of the five yielding stages of the arch ribs with different regeneration aggregate replacement rates are obtained. Comparing the relations between the peak of the internal force response and the seismic evaluation curves, the anti-seismic performances of the arch ribs are obtained. Results of computation show that the recycled concrete applied to the steel-tube arch ribs has good anti-seismic performance, and the replacement rate of the recycled aggregate has little influence on the anti-seismic performance of the concrete-filled steel-tube arch ribs.
