RESEARCH ON LONG-TERM EFFECT OF LARGE-DIAMETER ROCK-SOCKETED PILES AND FIELD MEASUREMENTS

ZHOU Yuqi; YAN Peiyu

doi:10.13204/j.gyjzG20040106

Volume 50 Issue 9

Nov. 2020

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2020 > 50(9): 106-111

Cheng Donghui, Jia Ying, Xing Jianbing. EXPERIMENT AND ANALYSIS OF PLASTIC PERFORMANCE OF PARTIALLY PRESTRESSED CONCRETE CONTINUOUS BEAMS WITH CFRP TENDON[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 37-43. doi: 10.13204/j.gyjz201003011

Citation:

ZHOU Yuqi, YAN Peiyu. RESEARCH ON LONG-TERM EFFECT OF LARGE-DIAMETER ROCK-SOCKETED PILES AND FIELD MEASUREMENTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 106-111. doi: 10.13204/j.gyjzG20040106

Citation:

ZHOU Yuqi, YAN Peiyu. RESEARCH ON LONG-TERM EFFECT OF LARGE-DIAMETER ROCK-SOCKETED PILES AND FIELD MEASUREMENTS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 106-111. doi: 10.13204/j.gyjzG20040106

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RESEARCH ON LONG-TERM EFFECT OF LARGE-DIAMETER ROCK-SOCKETED PILES AND FIELD MEASUREMENTS

doi: 10.13204/j.gyjzG20040106

ZHOU Yuqi^1,2,
YAN Peiyu¹

1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China;
2. China Construction First Group Construction & Development Co., Ltd., Beijing 100102, China

Received Date: 2020-04-25
Publish Date: 2020-11-23

Abstract

Abstract

Shenzhen Ping’an Financial Center is a super-high-rise building in China. The pile foundation of the project is rock-socketed end-bearing piles with a super large diameter. Due to the creep and shrinkage of concrete materials, the compression of pile body and the settlement of pile top caused by the creep and shrinkage of concrete should not be ignored. In order to explore the influence of non-load factors on the long-term settlement of super-large diameter piles in this project, the settlement of pile foundation in the whole construction process of this project was analyzed and predicted by using SAP 2000, a finite element software. During the analysis some time-dependent volume varying models of concrete were adopted to reflect the time-varying characteristics of the concrete in the super-large diameter piles. To check the rationality of the calculation results, comparison was made between the calculation results and the measured results. The results showed that it was reasonable and necessary for large diameter end-bearing pile to predict the settlement of pile foundation considering the creep and shrinkage property of concrete. The frequently used models, such as CEB-FIP 90、ACI 209R-92 and GL2000, could give a correct prediction closed to the measuring results.
- super-high-rise building,
- super-large diameter rock-socketed pile,
- long-term settlement,
- creep and shrinkage,
- construction monitoring

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References(8)

References

Council on Tall Buildings and Urban Habitat. 摩天大楼中心CTBUH全球高层建筑数据库[EB/OL].[2019-12-31].http://www.skyscrapercenter.com/.

傅学怡,吴国勤,黄用军,等.平安金融中心结构设计研究综述[J].建筑结构,2012,42(4):21-27.

廖钢林,徐超卓.深圳平安金融中心超大直径嵌岩端承桩设计与施工[J].施工技术,2016,45(23):130-133.

蔡小华,袁思军,谢碧波,等.中国平安人寿保险股份有限公司,平安国际金融中心项目岩土工程详细勘察报告书[R]. 深圳:深圳市长勘勘察设计有限公司,2009.

CEB. CEB-FIP Model Code[S].London:Thomas Telford,1993.

ACI. Prediction of Creep,Shrinkage,and Temperature Effects in Concrete Structures[M].New York:ACI,1992.

GARDNER N J, LOCKMAN M J. Design Provisions for Drying Shrinkage and Creep of Normal:Strength Concrete[J]. ACI Materials Journal,2001,98(2):159-167.

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