Lateral Pressure Test of Vertical Joint Concrete and Formwork Optimization Design for Monolithic Precast Concrete Structure

被引:10
|
作者
Yang, Yabin [1 ,2 ]
Ding, Xinxin [1 ,2 ]
Liu, Yungao [1 ]
Deng, Lianchao [1 ]
Lv, Feiyang [1 ]
Zhao, Shunbo [2 ,3 ]
机构
[1] North China Univ Water Resources & Elect Power, Sch Civil Engn & Commun, Zhengzhou 450045, Peoples R China
[2] North China Univ Water Resources & Elect Power, Sch Civil Engn & Commun, Int Joint Res Lab Ecobldg Mat & Engn Henan, Zhengzhou 450045, Peoples R China
[3] North China Univ Water Resources & Elect Power, Collaborat Innovat Ctr Efficient Utilizat Water R, Zhengzhou 450045, Peoples R China
关键词
monolithic precast concrete structure; vertical joint; self-compacting concrete; lateral pressure; aluminum alloy formwork; optimal design; SELF-CONSOLIDATING CONCRETE; COMPACTING CONCRETE; CASTING RATE;
D O I
10.3390/buildings12030261
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
When the vertical joints of monolithic precast concrete structures are cast by self-compacting concrete, the design of the formwork under rational lateral pressure of self-compacting concrete becomes a key technical issue. In this paper, a prototype simulation test was conducted for the pouring of self-compacting concrete in the vertical joint of precast concrete walls. The self-compacting concrete was continuously poured from the top of vertical joints with a height of 2.8 m without any assistance such as a delivery tube. The formwork pressure of self-compacting concrete was measured at different heights with varying casting time. Results showed that the lateral pressure increased with the increase in slump-flow of fresh self-compacting concrete, reaching a peak value of about 70 kPa at a height of about 600 mm from the bottom of formwork. Compared to the concrete with a slump-flow of 550 mm, the self-compacting concrete with the slump-flow reached 655 mm and 755 mm, presenting an increase in the peak lateral pressure by 31.5% and 44.9%, respectively. A method for calculating the lateral pressure of self-compacting concrete on the joint formwork is proposed using the analysis of enveloped test curves. Under the condition with enough strength and limited deformation of the joint formwork, the optimal design of aluminum alloy formwork is determined using finite element analysis. This provides a sci-tech foundation of the optimal design to lighten the weight of joint formwork to improve the installation efficiency and reduce the manual power cost.
引用
收藏
页数:14
相关论文
共 50 条
  • [41] Predicting the Formwork Lateral Pressure of Self-consolidating Concrete Based on Experimental Thixotropy Values
    Ghoddousi, Parviz
    Javid, Ali Akbar Shirzadi
    Amiri, Gholamreza Ghodrati
    Donyadideh, Khalil
    INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, 2019, 17 (7A) : 1131 - 1144
  • [42] Predicting the Formwork Lateral Pressure of Self-consolidating Concrete Based on Experimental Thixotropy Values
    Parviz Ghoddousi
    Ali Akbar Shirzadi Javid
    Gholamreza Ghodrati Amiri
    Khalil Donyadideh
    International Journal of Civil Engineering, 2019, 17 : 1131 - 1144
  • [43] Calculation model and experimental study on concrete-formwork lateral pressure based on Janssen theory
    Lu P.
    Chen Y.
    Li Y.-K.
    Wu H.-J.
    Gongcheng Lixue/Engineering Mechanics, 2019, 36 (08): : 201 - 209
  • [44] Lateral hysteretic behavior of precast concrete shear walls with unjointed vertical distribution bars and opening
    Cai, Qi
    Song, Xiaobin
    Xiao, Xuwen
    Gu, Xianglin
    ENGINEERING STRUCTURES, 2024, 305
  • [45] Comparative Study of Seismic Behavior between Monolithic Precast Concrete Structure and Cast-in-Place Structure
    Qin, Chao-gang
    Bai, Guo-liang
    Xu, Ya-zhou
    Su, Ning-fen
    Wu, Tao
    SHOCK AND VIBRATION, 2018, 2018
  • [46] Design Method and Seismic Performance Analyses of Reinforced Concrete Bridge Piers Confined with Precast UHPC Permanent Formwork
    Li S.
    Zhang F.
    Chu C.-Q.
    Zhao T.-Y.
    Wang J.-Q.
    Gao L.-Q.
    Yao Y.-M.
    Ming F.-Y.
    Zhongguo Gonglu Xuebao/China Journal of Highway and Transport, 2021, 34 (08): : 168 - 180
  • [47] EXPERIMENTAL STUDY ON VERTICAL CONSTRUCTION JOINT OF CONCRETE STRUCTURE.
    Kasami, Hideo
    Okuno, Toru
    Izumi, Itoshi
    Yamaguchi, Ikuo
    1600,
  • [48] Effect of Mix Design on Fresh Self-Consolidating Concrete and Inferences on Formwork Pressure
    Ruiz-Ripoll, L.
    Shah, S. P.
    Barragan, B. E.
    Turmo, J.
    JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2015, 27 (07)
  • [49] BIM-based concrete-slab formwork design using optimization method
    Yi, Cheng
    Ji, Xuan
    Zhu, Hongguang
    Xie, Yonglan
    Zhou, Jiajie
    Liu, Hong
    International Journal of Earth Sciences and Engineering, 2016, 9 (01): : 398 - 403
  • [50] Numerical Analysis on the Structure Design of Precast Cement Concrete Pavement Slabs
    Jiang, Shuangquan
    Wang, Yuan
    Wang, Xuhao
    Liu, Zexin
    Liu, Qianqian
    Li, Cheng
    Li, Peng
    COATINGS, 2022, 12 (08)