CAJ | 학술논문

以跨径比(计算跨度与曲线半径的比值)和横隔板数目为参数，对6片钢-混凝土简支曲线组合梁进行了试验研究，得到了曲线组合梁跨中集中荷载作用下的荷载-变形曲线、应变分布和钢梁与混凝土板间的相对滑移规律。试验结果表明：曲线组合梁的抗弯刚度和抗扭刚度均随跨径比的增大而降低，横隔板数目对其受弯性能影响不大，但端横隔板对受扭性能影响较大；有横隔板处切向应变在曲线内侧小，外侧大，无横隔板处则相反；钢梁与混凝土板结合面上的切向滑移随跨径比的增大而增大，横隔板数目对其影响较小。
이과경비(계산과도여곡선반경적비치)화횡격판수목위삼수，대6편강-혼응토간지곡선조합량진행료시험연구，득도료곡선조합량과중집중하재작용하적하재-변형곡선、응변분포화강량여혼응토판간적상대활이규률。시험결과표명：곡선조합량적항만강도화항뉴강도균수과경비적증대이강저，횡격판수목대기수만성능영향불대，단단횡격판대수뉴성능영향교대；유횡격판처절향응변재곡선내측소，외측대，무횡격판처칙상반；강량여혼응토판결합면상적절향활이수과경비적증대이증대，횡격판수목대기영향교소。
With the span-radius ratio and diaphragm’ s number as the design parameters, six simple steel-concrete curved composite model beams were tested under the concentrated load at middle span, the load-de-formation curve, section strain, and interfacial slip were measured. The test results show that, the bending and torsional stiffness of the steel-concrete curved composite beam all decrease with the span-radius ratio’ s increase, the diaphragm’ s number has little influence on the bending stress behavior, but the end diaphragms affect the torsional stress behavior apparently. The tangential strain at the position with diaphragm is small at inside and large at outside of the curve, but reverse at the position without diaphragm. The tangential slip between the con-crete slab and steel girder increase with the span-radius ratio’ s increase, but the diaphragm’ s number has little influence on it.