摘要
近年来,预应力约束下的混凝土局压承载力分析问题已经成为了关注的焦点,因此对于发展和完善预应力下混凝土的设计理念还是具有十分重要的价值。通过ABAQUS软件的分析,素性混凝土、植入普通钢筋的混凝土与预应力钢筋约束下混凝土的局压极限承载力进行对比,首次采用预应力筋约束混凝土局部受压区域的方法,以达到提高构件承载能力、限制裂缝开展、节约钢材、增加构件刚度的目的,并且研究了其应力云图以及其钢筋网片的受力形式。
In recent years,along with the continuously rapid development of building structure.The problem that analysis on the bearing capacity of prestressed concrete under local compression has become the focus.So it is very important to develop and perfect the design idea of concrete.By analyzing the ABAQUS software,Bureau of concrete under primality concrete,into the common reinforced concrete and prestressed reinforced constrained compression limit bearing capacity were compared.The method of local compression area of confined concrete is used for the first time.In order to improve the bearing capacity of the member,limit the crack development,save the steel,increase the rigidity of the member and study the stress cloud and the stress form of the steel bar.
出处
《混凝土》
CAS
北大核心
2016年第9期34-36,40,共4页
Concrete
基金
国家自然科学基金项目(51178205)
关键词
预应力
钢筋网片
局部受压
prestressed concrete
reinforcement mesh
local compression
