Experimental research on prestressed concrete hollow-core slabs strengthened with externally bonded bamboo laminates

被引：13
|
作者：
Wang, Zhuolin [1 ]
Wang, Mingqian [1 ]
Xu, Qingfeng [1 ]
Harries, Kent A. [2 ]
Li, Xiangmin [1 ]
Gao, Rundong [1 ]
机构：
[1] Shanghai Res Inst Bldg Sci Co Ltd, Shanghai Key Lab Engn Struct Safety, 75 South Wanping Rd, Shanghai 200032, Peoples R China
[2] Univ Pittsburgh, Dept Civil & Environm Engn, Pittsburgh, PA 15260 USA
来源：
ENGINEERING STRUCTURES | 2021年 / 244卷
基金：
国家重点研发计划;
关键词：
Laminated bamboo plate; Prestressed concrete hollow-core slab; Reinforcement ratio; Flexural performance; Strengthening; TREATED BAMBOO; BEHAVIOR;
D O I：
10.1016/j.engstruct.2021.112786
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study reports tests of prestressed concrete hollow-core slabs strengthened with externally-bonded laminated bamboo plates. The strengthened slabs are provided with varying ratios of externally-bonded laminated bamboo plate reinforcement having different widths and thicknesses. Structural performance is reported and the relationships between flexure and shear failure modes are described allowing guidance for the design of such externally-bonded laminated bamboo-strengthened hollow-core slabs. The low stiffness of the laminated bamboo helps to mitigate debonding, allowing the strength of the laminate to be fully developed. Both the load bearing and deformation capacities of the slabs are improved with strengthening. A value of equivalent steel reinforcing ratio (accounting for both internal prestressing wire and externally bonded bamboo laminates) rho s,eff = 0.0083 was determined to be the threshold between flexure- and shear-dominated failures. Using simple fundamental analysis, the behavior of the strengthened hollow-core slabs was easily and reliably predicted.
引用
收藏
页数：8
相关论文
共 50 条
  • [41] Transverse flexural and torsional strength of Prestressed Precast Hollow-Core Slabs
    Pisanty, A.
    TAILOR MADE CONCRETE STRUCTURES: NEW SOLUTIONS FOR OUR SOCIETY, 2008, : 126 - 126
  • [42] SHEAR CAPACITY OF NOTCHED PRESTRESSED HOLLOW-CORE SLABS WITH CIRCULAR VOIDS
    GIRHAMMAR, UA
    PAJARI, M
    STRUCTURAL ENGINEERING REVIEW, 1995, 7 (02): : 63 - 74
  • [43] UNIQUE APPLICATION OF PRESTRESSED HOLLOW-CORE SLABS POINTED TO BY LOAD TESTS
    OZELL, AM
    JOURNAL PRESTRESSED CONCRETE INSTITUTE, 1975, 20 (02): : 72 - 73
  • [44] Experimental and Numerical Studies on Shear Behavior of Deep Prestressed Concrete Hollow Core Slabs
    Nguyen, Hang T. N.
    Tan, Kang Hai
    Kanda, Tetsushi
    HIGH TECH CONCRETE: WHERE TECHNOLOGY AND ENGINEERING MEET, 2018, : 1110 - 1118
  • [45] Experimental and numerical analysis of full-scale prestressed hollow-core slabs with shear-damage strengthened by implanting shear steel bars
    Lu, Jinwei
    Wei, Yang
    Zhao, Kang
    Lin, Yu
    Gong, Zihan
    Xing, Ze
    Zheng, Kaiqi
    STRUCTURES, 2025, 73
  • [46] Investigation of prestressed hollow core concrete slabs at elevated temperatures
    Ellobody, Ehab
    CONSTRUCTION MATERIALS AND STRUCTURES, 2014, : 946 - 955
  • [47] Study on flexural behavior of concrete slabs strengthened with externally prestressed recycled bead wires
    Li, Yan
    Yao, Ziao
    Dong, Wenyang
    Ying, Daoheng
    CASE STUDIES IN CONSTRUCTION MATERIALS, 2024, 21
  • [48] Experimental studies of concrete beams strengthened with prestressed CFRP laminates
    Xue, Weichen
    Tan, Yuan
    Zeng, Lei
    PCI JOURNAL, 2008, 53 (05): : 70 - 85
  • [49] Experimental Investigation of the Fire Resistance of Thin Hollow-Core Concrete Slabs with Simple Supports
    Pothisiri, Thanyawat
    Kositsornwanee, Chaiyatorn
    ENGINEERING JOURNAL-THAILAND, 2015, 19 (02): : 139 - 155
  • [50] Behavior of reinforced lightweight aggregate concrete hollow-core slabs
    Al-Azzawi, Adel A.
    Al-Aziz, Basma M. Abdul
    COMPUTERS AND CONCRETE, 2018, 21 (02): : 117 - 126
12345