摘要
为探究梁柱节点处锚固方式对粘钢加固梁抗弯性能的影响,对3个采用新型锚固方式的粘钢加固试件以及采用《混凝土结构加固设计规范》(GB 50367—2006)提供的锚固做法对比试件进行单向静载试验,对规范做法给出改进措施并利用ABAQUS建模分析。结果表明:(1)柱端U形箍板与加固钢板间距离对粘钢梁抗弯性能影响明显;(2)采用角钢加锚栓进行锚固的试件抗弯性能良好;(3)采用斜向植筋和加肋锚固钢板进行锚固的试件,其抗裂能力及抗弯刚度与计算值接近,但由于加固钢板剥离,抗弯承载力略低。
In order to research the influence of beam column node anchorage mode on bending resistance of sticking steel reinforced beam, unidirectional static test is carried out on three sticking steel reinforced samples using new anchorage mode and contrast sample using the anchorage method specified in Design Code for Strengthening Concrete Structure. Measures are put forward to improve the method specified in the Code and analysis is carried out by establishing ABAQUS model. Results indicate that： （1） the distance between the U- shaped plate at column top and strengthening steel plate has obvious influence on the bending resistance of sticking steel reinforced beam. （2） The test sample which is anchored by using angle steel and anchor bolt has favorable bending resistance. （3） The crack resistance and bending rigidity of the test sample which is anchored by using oblique steel and ribbed anchorage steel plate are close to the calculated values, but the bending resistance is slightly smaller than the calculated value due to separation of strengthening steel plate.
出处
《建筑技术》
2014年第2期170-173,共4页
Architecture Technology
关键词
粘钢加固
锚固
抗弯性能
钢筋混凝土
梁
sticking steel reinforcement
anchorage
bending resistance
reinforced concrete
beam
