竖向荷载下桩身压缩量的计算和实例分析  

Calculate and analyse of example on compression of pile under vertical load

作　　者：杨立[1] 孟照辉[1] 廖峰 

机构地区：[1]深圳市建设工程质量检测中心,广东深圳518031 [2]广州岩泰高新技术工程顾问有限公司,广东广州510000

出　　处：《四川建筑科学研究》2015年第5期65-70,78,共7页Sichuan Building Science

摘　　要：现行规范推荐的竖向荷载下桩身压缩量计算公式,是采用理想化、简单化模型下推导出的系数计算的。本文建立了桩侧阻力的折线分布模型,计算了三种情况下侧摩阻力分布系数,并通过实测数据验证,结果表明本文的计算方法整体上优于规范推荐的方法。The recommedation of the formula for calculating compression of pile under vertical load from the present technical code is calculated by the coefficient which is deduced by idealized and simplified model. We build up the broken-line distribution model of shaft friction and calculate distribution coefficient of shaft friction in three different situations. The results of verification for test data show that the calculation method is better than the one from recommendation.

关 键 词：混凝土桩 压缩量 桩身压缩系数 

分 类 号：TU473.11[建筑科学—结构工程]