2015年2月下 施工技术 第44卷第4期 CONSTRUCTION TECHNOLOGY 39 D0I:10.7672/5js2015040039 方木柱维修加固方法试验研究 刘琼，许清风，张富文，贡春成，陈溪 (上海市工程结构安全重点实验室，上海市建筑科学研究院（集团）有限公司，上海200032) [摘要]木柱加固方法多种多样，近些年以纤维布复合材料加固较为普遍，但是破坏木结构的形貌，而且难以拆卸. 笔者开发一种可逆的木柱加固方法，拟采用螺丝连接钢板或对穿螺栓连接钢板的方法加固方木柱，也设计了采用 粘贴钢板的方法，以对比几种不同的加固方法的效果.通过对比加固前后的方木柱试件的抗压性能可以看出，螺 丝连接钢板和对穿螺栓连接钢板加周木柱的方法未能明显提高木柱的承载力；模拟局部腐朽后采用同质顺纹木块 螺丝连接钢板应急维修的研究表明，在螺丝间距有保证时该方法可迅速恢复方木柱的承载能力和变形能力；粘贴 角钢并焊接缀条的方法能明显提高木柱的承载力和变形能力. [关键词]木柱：加固；螺丝；对穿螺栓；钢板 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2015)04-0039-06 Experimental Study on the Strengthening Methods for Square Wood Column Liu Qiong Xu Qingfeng Zhang Fuwen Gong Chuncheng Chen Xi (Shanghai Key Laboratory of Engineering Structure Safety Shanghai Research Institute of Building Sciences Group)Co.Lid.Shanghai 200032 China) Abstract:Among the variety of strengthening methods FRP is a mon method in recent years. However FRP is different in appearance with wood and is difficult to tear off so that it hazards the morphology of wood structure.In this paper a reversible method is suggested to strengthen the square wood column which is screw fixing steel plate or penetration bolt fixing steel plate method.In addition pasting steel plate or angle steel on the side surface is also designed to strengthen the wood column.The strengthening effect is analyzed by paring them with the original samples.By paring the pressive characters of the strengthening samples and non-strengthening ones it cannot be found that the strength is en...
方木柱维修加固方法试验研究.pdf
