高强聚酯纤维超高性能混凝土板承载力试验研究

杨柳依依; 卢淼; 杨晓华; 吴晶晶

doi:10.3724/j.gyjzG25010601

高强聚酯纤维超高性能混凝土板承载力试验研究

doi: 10.3724/j.gyjzG25010601

湖南工业大学土木工程学院, 湖南株洲 412008

基金项目:

国家自然科学基金资助项目（42402325519）；湖南省自然科学基金资助项目（2023JJ50206）。

详细信息

作者简介:
杨柳依依，博士，讲师，主要从事土木工程结构与材料材料、工程管理研究。Email:liuyiyi1611@163.com

计量
- 文章访问数: 32
- HTML全文浏览量: 8
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2025-01-06
- 网络出版日期: 2026-08-31
- 刊出日期: 2026-07-20

Experimental Research on the Bearing Capacity of High-Strength Polyester Fiber Ultra-High Performance Concrete Slabs

School of Civil Engineering, Hunan University of Technology, Zhuzhou 412008, China

摘要

摘要: 超高分子量聚酯纤维制作的超高性能混凝土是一种新型高强度特种复合材料，具有高强度、高延性、高耐久性的特点。为了探究掺入超高分子量聚酯短纤维和构造钢筋网片对混凝土板的作用机理及对其受力性能的影响，制作了4块几何尺寸相同、纤维含量不同及构造钢筋网片配置与否的矩形薄板，通过试验测得试验模型从加载到破坏全过程应力、应变和位移反应。结果表明：混凝土板中掺入超高分子量聚酯纤维可在混凝土板内形成随意空间纤维网，对混凝土基体起拉接和嵌固作用，抑制裂缝的产生和扩展，可明显改善混凝土板的抗裂性和延性，极大提高混凝土板的承载能力；试验板内配置的构造钢筋网片可视为超高分子量聚酯短纤维网的支撑骨架，将混凝土基体内随意分布的短纤维相互串联成整体，且与超高分子量聚酯纤维网共同作用，提高超高性能混凝土板的承载能力和抗变形能力。
- 超高性能混凝土 /
- 超高分子量聚酯纤维 /
- 承载力 /
- 抗裂能力 /
- 板
Abstract: Ultra-high performance concrete （UHPC） incorporating ultra-high molecular weight polyester （UHMWPE） fibers is a novel high-strength composite. It exhibits high strength， high ductility， and excellent durability. This experiment investigated the mechanisms by which UHMWPE staple fibers and structural steel meshes enhance the structural performance of concrete slabs. Four rectangular thin slabs of identical geometry but with different fiber contents and steel mesh configurations were fabricated. Through tests， the stress， strain， and displacement of the specimens were monitored throughout the entire loading process until failure. The results demonstrated that the UHMWPE fibers formed a random three-dimensional network within the concrete slab. This network bridged and anchored the concrete matrix， suppressed the initiation and propagation of cracks， significantly enhanced crack resistance and ductility， and substantially improved the bearing capacity of the concrete slabs. The incorporation of the structural steel mesh provided a primary supporting skeleton. The randomly distributed short fibers connected with this skeleton， forming an integrated system. This synergy between the steel mesh and the UHMWPE fibers collectively enhanced the slabs’ bearing capacity and deformation resistance.
- ultra-high performance reinforced concrete /
- ultra-high molecular weight polyester fiber /
- bearing capacity /
- crack resistance /
- slab

HTML全文

参考文献(20)

[1]	刘慈军，李立峰，邵旭东，等.新型 UHPC-NC组合盖梁的结构设计与试验分析[J].浙江大学学报，2024，11（58）:1-10.
[2]	WANG S，ZHANG M H，QUEK S T. Corrigendum to“mechanical behavior of fiber-reinforced high-strength concrete subjected to high strain-rate compressive loading”[J]. Construction and Building Materials，2012，31:1-11.
[3]	边晨，赵长军，黄卫军，等.粗骨料及混杂纤维对UHPC力学性能的影响[J].工程科学学报，2024，46（3）:536-546.
[4]	WANG S N，XU L H，YIN C R，et al. Constitutive behavior of ultra-high-performance steel fiber reinforced concrete under monotonic and cyclic tension[J]. Journal of Building Engineering，2023，68（7）:105991.
[5]	杨虹，王海龙，王红珊，等.碳纤维轻骨料混凝土力学性能试验研究[J].建筑结构，2021，51（11）:108-112.
[6]	杜永超. UHPFRC制备技术及力学性能研究[D].焦作:河南理工大学，2022.
[7]	WILLE K，EL-TAWIL S，NAAMAN A E. Properties of strain hardening ultra high performance fiber reinforced concrete（UHP-FRC）under direct tensile loading[J]. Cement and Concrete Composites，2014，48（11）:53-56.
[8]	YOO D Y，KIM M J. High energy absorbent ultra-high-performance concrete with hybrid steel and polyethylene fibers[J]. Construction and Building Materials，2019，209（6）:354-363.
[9]	YOO D Y，KANG S T，YOON Y S. Effect of fiber length and placement method on flexural behavior，tension-softening curve，and fiber distribution characteristics of UHPFRC[J]. Construction and Building Materials，2014，64（8）:67-81.
[10]	宋秋磊.钢纤维分布对超高性能混凝土性能影响及调控研究[D].武汉:武汉理工大学，2021.
[11]	赵秋，杨明，李聪.不同钢纤维掺量高配筋超高性能混凝土板抗弯试验研究[J].工业建筑，2018，48（10）:148-151.
[12]	ZHOU Z D，XIE R F，QIAO P，et al. On the modeling of tensile behavior of ultra-high performance fiber reinforced concrete with freezing-thawing actions[J]. Composites Part B:Engineering，2019，174（10）:106983.
[13]	龚泳帆，杨建明，董虎，等.玄武岩纤维增强超高性能混凝土基本力学性能研究[J].混凝土，2023（7）:91-96.
[14]	YANG L，XIE H，FANG S，et al. Experimental study on mechanical properties and damage mechanism of basalt fiber reinforced concrete under uniaxial compression[J]. Structures，2021，31（9）:330-340.
[15]	BARNETT S J，LATASTEJ F，PARRY T，et al. Assessment of fibre orientation in ultra high performance fibre reinforced concrete and its effect on flexural strength[J]. Materials and Structures，2010，43（7）:1009-1023.
[16]	LYU X，ELCHALAKANI M，AHMED T，et al. Residual strength of steel fibre reinforced rubberised UHPC under elevated temperatures[J]. Journal of Building Engineering，2023，76:157-173.
[17]	屈少钦，张阳，卢九章，等.磷酸锌改性钢纤维对UHPC和配筋UHPC抗拉性能的影响[J].公路工程，2021，46（6）:23-29.
[18]	陈康明，黄卿维，吴庆雄，等.采用预制-现浇UHPC板的钢桥面铺装受力性能研究[J].中国公路学报，2022，35（12）:130-143.
[19]	高硕，商玉洁，周喻.玄武岩纤维混凝土静力学特性及破裂机制[J].混凝土，2024（11）:93-99.
[20]	刘茜，张津滔，高子祁，等.玄武岩纤维混凝土简支梁正截面受力性能试验研究[J].建筑结构学报，2022，43（12）:1-11.