中文摘要：

碳纤维筋（CFRP）具有优良的物理力学性能，可作为钢管混凝土系杆拱桥中的吊索。一种CFRP筋的树脂封装型锚具也已开发，它可调整CFRP吊索索力大小，并有可能应用于CFRP吊索钢管混凝土系杆拱桥。本文的试验研究对钢管拱桥模型及钢管混凝土拱桥模型的受力与变形性能分别进行了测试与对比分析。在系梁施加预应力过程中，对CFRP吊索拉力、系梁与钢管拱的竖向挠曲变形及应力的变化进行了测试。与钢管混凝土拱桥相比，相近荷载作用下钢管拱桥吊索拉力较大，系梁的竖向变形较大，钢拱相应截面的压应力较大，系梁裂缝宽度较大。试验结果表明CFRP吊索钢管混凝土系杆拱桥的受力与变形性能较好，为CFRP吊索在系杆拱桥中的推广应用提供了一系列试验依据。

英文摘要：

Carbon fiber reinforced polymer （CFRP） tendons have excellent physical and mechanical properties, it can be used as hangers on concrete-filled steel tube tie-arch bridges. A kind of resin bond type anchors has also been developed; it can adjust tension of CFRP hangers and may be applied in concrete-filled steel tube fled-arch bridges. In the present paper some tests on steel tube arch bridge model and concrete-filled steel tube arch bridge model are introduced respectively, their mechanical and geometrical behaviors were tested and compared. During fled-beam prestressing the tension forces of CFRP hangers, vertical deflection and stresses of tied-beam and steel tube arch were measured. Comparing with steel tube arch bridges, the tension forces of hangers, vertical deflections of tiedbeam, compressive stresses of steel tube, cracking widths of tied-beam of concrete-filled steel tube arch bridges under similar load are all smaller. It shows that mechanical and geometrical behaviors of concrete-fdled steel tube arch bridges are better than those of steel tube arch bridges. The tests also provide a series of experimental data for the application of CFRP hangers in concrete-filled steel tube tied-arch bridges.