【作者】 牛建刚；

【导师】 牛荻涛；

【作者基本信息】 西安建筑科技大学 ， 结构工程， 2004， 硕士

【摘要】 随着经济水平的提高，住宅结构的形式和功能对结构荷载和抗力的分析提出了新的要求，同时使安全与经济平衡的可靠度水平调整成为了一个急需解决的问题。适应于住宅结构设计基准期从50年提高到100年的总体攻关目标要求，大规模更新住宅荷载基础数据，是开展结构可靠度研究与可靠度设计的重要基础工作。 本项研究是国家十五科技攻关专题“住宅建筑结构可靠性技术研究”的部分工作。论文以西安和包头地区多层和中高层典型住宅结构为对象，对典型住宅结构的楼面活荷载进行了调查，收集了大量的住宅楼面活荷载资料。采用室面积平均荷载法和进深板带面积平均荷载法将楼面持久性活荷载等效为楼面均布荷载，给出了楼面持久性活荷载的计算结果；采用室面积平均荷载法计算给出了楼面临时性活荷载等效值。利用数理统计方法，研究了典型住宅结构楼面持久性活荷载和临时性活荷载的概率分布和统计参数，建立了设计基准期T=50年和T=100年时楼面持久性活荷载和楼面临时性活荷载的概率分布模型，并确定了模型参数。在此基础上，提出了我国住宅结构楼面活荷载标准值的建议取值。更多还原

【Abstract】 With the development of the economy, the structural form and function of residence put forward the new request for load and resistance. Adjusting equilibrium level of reliability between economy and security has become a problem to resolve urgently. In order to achieve the whole target that the design reference period is heightened from 50 years to 100 years, the old residential load data should be updated in a large scale, which is an important fundamental work to the study and design of structural reliability.This research is a part of "The Reliability Study of Residential Buildings", that is the National Tenth Five-Year Projects of science and technology. Based on the investigation of typical multistorey and high-rise residential buildings in Xi’an and Baotou, a great quantity of residential floor live load data are gathered. Since live loads on floor are usually expressed in terms of uniformly distributed loads for design purpose, in this paper, the sustained live load on floor are calculated respectively with the average load in room area and in batten area, while the transient live load on floor are computed with the average load in room area. Making use of the mathematical statistics analysis, probability distributions and statistical parameters of the sustained and transient quality of residential floor live load is studied. Thereby the distributed models and parameters of the sustained live load and the transient live load on residential floor are obtained at design reference period T=50 years and T=100 years. Our country’s characteristic value of live load on residential floor is advanced.更多还原