论文部分内容阅读
预制的预应力钢筋混凝土薄长构件(有如桥梁的薄长预制梁等),在自重、加载、混凝土收缩及徐变和温度变化影响下,吊装施工过程中及竣工就位后,会产生横向弯曲,甚至扭转失稳,因而,在施工过程中对这种受力状态的分析及核算十分重要。本文介绍的方法,则可用于计算分析薄长构件的屈曲应力,文中对计算分析的原理、方法、公式阐述后,还附有计算示例。
Prefabricated prestressed reinforced concrete thin members (such as bridges, thin long prefabricated beams, etc.), under the weight, load, concrete shrinkage and creep and temperature changes under the influence of lifting construction and completion of the place, will have a lateral bend , Or even reverse the instability, therefore, in the construction process of this state of stress analysis and accounting is very important. The method introduced in this paper can be used to calculate and analyze the buckling stress of thin-long members. The calculation theory, methods and formulas are described in the article, followed by calculation examples.