Development of Resistance Models for Wood Formworks

木模板阻力模型的开发

• 批准号: 9002571
• 负责人: Saeed Karshenas
• 金额: $ 10.76万
• 依托单位: Marquette University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9002571&HistoricalAwards=false
• 关键词: Development; Resistance; Models; Wood; Formworks

Failure of concrete structures during construction constitutes a significant percentage of construction failures. Among the causes of formwork failure are inadequate strength and overloading. The proposed study will concentrate on developing probability models for predicting the resistances and stiffnesses of handset wood slab formworks commonly used in multistory concrete construction. The behavior of a formwork system is not only a function of the strength and the physical condition of its members but also the quality of its installation workmanship. Therefore, to develop formwork load-deformation and resistance models, samples of formwork members and form installation workmanship data will be collected from several construction sites. Each collected member sample will be erected in the lab for test with the same installation deviations and inaccuracies measured for it at the construction site. The tests results will be used to derive probability models expressing the resistance and stiffness of wood formworks.

混凝土结构在施工过程中的故障构成了 施工失败的比例很大。 原因中 模板失效的主要原因是强度不足和超载。 的 拟议的研究将集中于开发概率模型 用于预测手机木板的阻力和刚度 多层混凝土建筑中常用的模板。 的 模板系统的性能不仅是 其成员的力量和身体状况， 其安装工艺的质量。 因此，为了发展 模板荷载-变形和阻力模型， 模板构件和模板安装工艺数据将 从几个建筑工地收集的 每一个收集的成员 样品将在实验室中竖立， 安装偏差和不准确度测量， 工地 测试结果将用于推导 木材抗力和刚度的概率模型 模板