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罗震刚,周晨,王晶,等. 基于极限强度法的地连墙兼做水池壁板接头弯矩计算方法[J]. 科学技术与工程, 2020, 20(35): 14562-14570.
Luo Zhengang,Zhou Chen,Wang Jing,et al.A Method for Calculating Bending Moment of Diaphragm Wall Joints in Water Pool Based on Ultimate Strength Method[J].Science Technology and Engineering,2020,20(35):14562-14570.
基于极限强度法的地连墙兼做水池壁板接头弯矩计算方法
A Method for Calculating Bending Moment of Diaphragm Wall Joints in Water Pool Based on Ultimate Strength Method
投稿时间:2019-11-07  修订日期:2020-08-28
DOI:
中文关键词:  地下连续墙  钢筋粘结-滑移理论  截面抗弯能力  极限强度法  钢筋锚固强度
英文关键词:diaphragm wall  bond-slip theory of reinforcing bar  bending capacity of section  ultimate strength method  anchorage strength of reinforcing bar.
基金项目:国家自然科学基金重点项目41830110;江苏省建设系统科技项目2017ZD090;NJSZY-KJLX-201803项目
                 
作者单位
罗震刚 Nanjing Municipal Design Research Institute LLC
周晨 南京市市政设计研究院有限责任公司
王晶 南京市市政设计研究院有限责任公司
陈伟 河海大学土木与交通学院
马栋魁 河海大学土木与交通学院
沈才华 河海大学土木与交通学院
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中文摘要:
      地下连续墙兼做永久结构体的“两墙合一”具有很好的经济价值,工程应用越来越多,但作为主体结构时,其接头处的抗弯强度很难控制,成为墙体开裂的薄弱点。本文基于钢筋混凝土粘结—滑移本构理论,采用极限强度法思想,建立了搭接处抗弯能力的上下极限值计算方法。结合海口市白沙门污水处理厂水池壁板设计实际工程,分析了不同搭接长度和不同搭接钢筋间距对抗弯能力设计值的影响规律,为搭接钢筋长度和间距的优化设计提供了理论依据,对进一步促进我国地下连续墙兼做永久主体结构的建设发展具有重要实际意义
英文摘要:
      The diaphragm wall as a permanent structure has good economic value and more and more engineering applications. However, as the main structure, the bending strength at the joint is difficult to control, which becomes the weak point of wall cracking. Based on the bond-slip constitutive theory of reinforced concrete and the idea of ultimate strength method, this paper establishes the calculation method of upper and lower limit values of flexural capacity of lap joint. Combining with the actual design project of the wall slab of Baishamen Sewage Treatment Plant in Haikou City, the influence law of different overlapping length and spacing of overlapping steel bars on the design value of bending resistance is analyzed, which provides a theoretical basis for optimizing the length and spacing of overlapping steel bars, and further promotes the underground diaphragm wall as a permanent main joint in China. The construction and development of institutions are of great practical significance.
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