期刊论文

Experimental investigation on mechanical behaivors of glulam beams with rebar reinforced steel clamping plate and bolt connected

中文

铁道科学与工程学报

1672-7029

2024

21

3

1126-1135

10.19713/j.cnki.43-1423/u.T20230789

52378211:国家自然科学基金 2021JJ31160:湖南省自然科学基金资助项目 2019YJ036:中南林业科技大学******资助项目 2020RC4049:湖南省科技创新计划资助项目 :现代木结构工程材制造 HELFMTS1705:应用技术湖南省工程实验室开放基金资助项目

本校为第一机构

为改善钢夹板-螺栓连接胶合木梁的刚度在到达极限荷载55%～70%区间内存在减小的问题,设计制作了3组共12根钢筋增强钢夹板-螺栓连接胶合木梁,通过改变配筋率进行三分点加载试验,并与相同设计参数的胶合木梁和钢夹板-螺栓连接胶合木梁进行对比试验.观察记录试件的受力过程和破坏现象,实测各组试件的极限承载力、荷载位移曲线和应变曲线,对比分析增强筋对各组试件破坏机理、抗弯刚度和极限承载力的影响规律.试验结果表明:与钢夹板-螺栓连接胶合木梁相比,钢筋增强钢夹板-螺栓连接胶合木梁的抗弯承载力和整体弯曲刚度在增强筋的作用下均有显著提高,钢夹板-螺栓连接试验梁在到达极限荷载55%～70%区间内...

In order to improve the problem that the stiffness of steel plate-bolted glue-laminated timber beams decreases in the range of 55%to 70%of the ultimate load,three groups of 12 steel-reinforced steel plate-bolted glue-laminated timber beams were designed and produced.Three sets of steel reinforcement-reinforced steel plate-bolted glue-laminated timber beams were tested in three-quarter-point loading tests by changing reinforcement rates,and compared with glue-laminated timber beams and steel plate-bolted glue-laminated timber beams with the same...