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轴向短期和长期荷载作用下钢管混凝土组合管的试验研究

Experimental Studies of Concrete-Filled Composite Tubes under Axial Short- and Long-Term Loads.

作者信息

Abramski Marcin, Korzeniowski Piotr, Klempka Krzysztof

机构信息

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland.

Institute of Technology, The State University of Applied Sciences in Elbląg, 82-300 Elbląg, Poland.

出版信息

Materials (Basel). 2020 May 1;13(9):2080. doi: 10.3390/ma13092080.

DOI:10.3390/ma13092080
PMID:32369909
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7254371/
Abstract

The paper presents experimental studies on axially compressed columns made of concrete-filled glass fiber reinforced polymer (GFRP) tubes. The infill concrete was C30/37 according to Eurocode 2. The investigated composite pipes were characterized by different angles of fiber winding in relation to the longitudinal axis of the element: 20, 55 and 85 degrees. Columns of two lengths, 0.4 m and 2.0 m, were studied. The internal diameter and wall thickness of all the pipes were identical and amounted to 200 mm and 6 mm, respectively. The mean values of two mechanical properties, elasticity modulus and compression strength, were determined. These properties were determined for longitudinal compression and for circumferential tension. The graphs of longitudinal and peripheral deformations of polymer shells as a function of load level are presented both for empty tubes and for concrete-filled ones. The results of long-term investigations of three identically made 0.4 m high concrete-filled GFRP tubes are also presented.

摘要

本文介绍了对玻璃纤维增强聚合物（GFRP）管内填混凝土的轴向受压柱的试验研究。根据欧洲规范2，填充混凝土为C30/37。所研究的复合管的特点是纤维缠绕相对于构件纵向轴线的角度不同：20度、55度和85度。研究了两种长度的柱，分别为0.4米和2.0米。所有管道的内径和壁厚相同，分别为200毫米和6毫米。测定了弹性模量和抗压强度这两种力学性能的平均值。这些性能是针对纵向压缩和周向拉伸测定的。给出了空管和内填混凝土管的聚合物壳纵向和周向变形随荷载水平变化的曲线。还给出了三根相同制作的0.4米高内填混凝土GFRP管的长期研究结果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/87656b2a1d90/materials-13-02080-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/b85d343fbd74/materials-13-02080-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/34743e11401f/materials-13-02080-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/dac41dd0515e/materials-13-02080-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/4ccfc75bb227/materials-13-02080-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/1c9552cc3c4b/materials-13-02080-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/56131f111996/materials-13-02080-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/818b845452a8/materials-13-02080-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/47212f9c7de1/materials-13-02080-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/549a720dea4b/materials-13-02080-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/87656b2a1d90/materials-13-02080-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/b85d343fbd74/materials-13-02080-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/34743e11401f/materials-13-02080-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/dac41dd0515e/materials-13-02080-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/4ccfc75bb227/materials-13-02080-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/1c9552cc3c4b/materials-13-02080-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/56131f111996/materials-13-02080-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/818b845452a8/materials-13-02080-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/47212f9c7de1/materials-13-02080-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/549a720dea4b/materials-13-02080-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/31dc/7254371/87656b2a1d90/materials-13-02080-g018.jpg

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本文引用的文献

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Research on the Bond Behavior of Preplaced Aggregate Concrete-Filled Steel Tube Columns.钢管内预置骨料混凝土柱粘结性能研究
Materials (Basel). 2020 Jan 9;13(2):300. doi: 10.3390/ma13020300.