结构受扰区的拉压杆模型设计法

Design of Disturbed Regions of Structures by Strut-and-Tie Models

介绍了拉压杆模型法的发展、模型建立的步骤和3种建立拉压杆模型的方法,还介绍了美国ACI 318-05规范中关于压杆内力、承载力及有效面积的确定方法、杆件及结点的强度检验公式.

Strut-and-tie model, widely used in disturbed regions in the concrete structures,is a mature method in foreign countries. The strut-and-tie design method can be incorporated in the codes for the design of concrete structure in United State of America, Canada and Europe. The development of the strut-and-tie models, the processes and three methods of estabtishing the strut-and-tie models are presented. Finally the codes of American ACI318 -05 about force ,carrying capacity and effective area of strut, checkout formula of the tie and node are introduced.