摘要
为了计算型钢混凝土叠合梁施工阶段的开裂弯矩、变形和裂缝宽度,完成了6根型钢混凝土叠合梁底部预制构件的静力试验,在试验的基础上重点分析了开裂弯矩、刚度和裂缝宽度公式,并通过参考相关文献,得出计算公式。计算结果表明,用本文公式计算得到的理论值与试验值吻合良好。
In order to calculate the cracking moment, deformations and the crack width during the construction phase of the steel reinforced concrete composite beam, static tests are carried out on the bottom prefabricated components of six steel reinforced concrete composite beams. On the basis of the tests, the cracking moment, stiffness and crack width formulas are mainly analyzed. By referring to relevant literature, the formulas are obtained. The results show that the theoretical value calculated by the formulas in this paper are in good agreement with the experimental ones.
出处
《混凝土与水泥制品》
北大核心
2018年第8期69-73,共5页
China Concrete and Cement Products
基金
国家自然科学基金资助项目(51478287)
江苏省研究生科研创新计划项目(KYLX16_1358)
关键词
型钢混凝土梁
预制构件
理论分析
开裂弯矩
变形验算
裂缝验算
Steel reinforced concrete beam
Precast component
Theoretical analysis
Cracking moment
Checking calculation of deformation
Crack checking