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科技导报
| 研究论文 2015, 33(12): 44-49
预应力高强混凝土管桩-承台组合体受力性能
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李艳艳1,2 , 李泽高1 , 李和庆3 , 赵雄3
作者信息
1. 河北工业大学土木工程学院, 天津300401;
Mechanical properties of prestressed high-intensity concrete pile and pile caps combined
Affiliations
出版时间: 2015-06-28
doi: 10.3981/j.issn.1000-7857.2015.12.007
文章导航
对5 个预制桩身与承台组合体试件进行低周反复试验, 分析构件的破坏形态、承载力及延性、锚固钢筋的受力, 研究预制桩身与承台锚固钢筋的不同锚固形式对试件受力性能的影响。结果表明:通过连接板焊接锚固钢筋的试件, 倾角锚固钢筋能延缓试件裂缝的发展, 提高试件的承载能力;在桩身内安放钢筋笼并深入承台的锚固钢筋可明显改善管桩-承台组合体试件的整体性, 提高组合体试件的承载能力、延性, 改善组合体试件的变形能力, 且斜角锚固钢筋试件的承载能力优于直角试件。
PHC 管桩
/
低周往复荷载
/
承载力
/
延性
5 specimens of prefabricated pile combined with pile caps are tested under low cycle reciprocating loading. The failure patterns, the bearing capacity and the ductility, the forces in anchoring reinforcing bars, as well as the influence of different forms of the precast pile and pile cap anchoring reinforcing bars on the mechanical properties of the specimen are studied. It is shown that by anchoring reinforced connecting plate welded specimens, the inclined anchoring reinforcing bars can play a role in delaying the growth of cracks, increasing the bearing capacity of the specimen. The specimens with the pile body and the anchoring reinforcing bars can significantly improve the integrity of the pile cap assembly of the specimen and increase the bearing capacity, the ductility, and the deformation ability, and the bearing capacity of the anchoring reinforcing bars of oblique angle is better than that of the rectangular specimens.
PHC pipe pile
/
low cyclic loading
/
bearing capacity
/
ductility
李艳艳, 李泽高, 李和庆, 赵雄.
预应力高强混凝土管桩-承台组合体受力性能.
科技导报,
2015
, 33
(12)
: 44
-49
.
DOI: 10.3981/j.issn.1000-7857.2015.12.007
LI Yanyan, LI Zegao, LI Heqing, ZHAO Xiong.
Mechanical properties of prestressed high-intensity concrete pile and pile caps combined[J].
Science & Technology Review ,
2015
, 33
(12)
: 44
-49
.
DOI: 10.3981/j.issn.1000-7857.2015.12.007
2015年第33卷第12期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.12.007
接收时间：2015-01-12
首发时间：2015-07-15
出版时间：2015-06-28
收稿日期：2015-01-12
修回日期：2015-03-26
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.12.007
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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