Research on Mass Concrete Construction Techonogy of Raft Foundation of Hongyun Building

2013 ◽  
Vol 690-693 ◽  
pp. 709-713 ◽  
Author(s):  
Su Hua Yin ◽  
Yuan Huang ◽  
Ying Hui Yuan
Keyword(s):  
Temperature Control ◽  
Mass Concrete ◽  
Construction Technology ◽  
Concrete Construction ◽  
Core Tube ◽  
The Core ◽  
Raft Foundation ◽  
Concrete Base

The foundation of A tower of Hongyun building is made of raft board foundation which is 4200mm in the thickness and 3500mm beside side of the core tube. It is researched that the raft foundation mass concrete construction technology is expatiated from temperature and cracks of the raft foundation and the temperature control and monitoring of the concrete base slab construction and concrete curing.

Cracking and Temperature Control in Mass Concrete Construction

2012 ◽  
Vol 446-449 ◽  
pp. 841-845
Author(s):  
Zhong Qing Xu ◽  
Yong Gang Ding ◽  
Chang Yi Zhai ◽  
Qiang Jun Li
Keyword(s):  
Temperature Control ◽  
Mass Concrete ◽  
Concrete Construction

Temperature Control Measures Optimization of RCC Gravity Dam

2012 ◽  
Vol 226-228 ◽  
pp. 1153-1156 ◽  
Author(s):  
Shu Ping Huang ◽  
Jian Yun Fu ◽  
Yan Cai Li
Keyword(s):  
Temperature Control ◽  
Simulation Analysis ◽  
Control Measure ◽  
Control Measures ◽  
Gravity Dam ◽  
Mass Concrete ◽  
Dam Construction ◽  
Construction Technology ◽  
3D Fem ◽  
Single Temperature

With the continuous development of dam construction technology, the RCC dam becomes one of the most popular types of dam in the world with its unique advantages. Temperature control measures research is one of the key issues of design and construction of mass concrete structures. How to choose the proper temperature control measures to prevent concrete cracks becomes the important problem of dam construction technology. In a RCC gravity dam, the climate environment is so severe that a single temperature control measure can’t meet the requirements of temperature control and crack prevention. In this paper, 3D FEM simulation analysis is used to calculate temperature field and thermal creep stress field during the whole construction process. According to the simulation results, the temperature control measures design of the dam has been comprehensively evaluated and the temperature control measures of this project have been put forward.

Comparative Study of Model Test and Numerical Analysis on the Temperature Monitoring of Mass Concrete Raft Foundation

2013 ◽  
Vol 351-352 ◽  
pp. 1231-1235
Author(s):  
Wei Sun ◽  
Qiang Wang ◽  
Chao Ge
Keyword(s):  
Numerical Analysis ◽  
Comparative Study ◽  
Temperature Control ◽  
Model Test ◽  
Temperature Monitoring ◽  
Control Measures ◽  
Mass Concrete ◽  
High Rise ◽  
Raft Foundation ◽  
Mat Foundation

A high-rise building with an 11 meters thick raft foundation will be built in Shenyang, which will bring a huge challenge to construction on site. To avoid temperature crack affecting construction quality, a comparative study of model test and numerical analysis about temperature monitoring are carried out to determine the construction measures for the mass concrete mat foundation. The results show that the development of temperature field of inner concrete can be divided into three stages: growing rapidly, cooling fast and cooling steadily. Different temperature control measures should be used for different temperature developing stages. The results of the model test and numerical analysis in the paper will provide technical supports to the temperature control on site.

Temperature Control and Anti-Cracking Measures for a High-Performance Concrete Aqueduct

2013 ◽  
Vol 405-408 ◽  
pp. 2739-2742 ◽  
Author(s):  
Zhen Hong Wang ◽  
Shu Ping Yu ◽  
Yi Liu
Keyword(s):  
Temperature Control ◽  
Temperature Difference ◽  
High Performance ◽  
High Performance Concrete ◽  
Concrete Structures ◽  
Apparent Temperature ◽  
Mass Concrete ◽  
Water Pipe ◽  
Thin Walled ◽  
Water Pipe Cooling

To solve the problem of cracks developing on thin-walled concrete structures during construction, the authors expound on the causes of cracks and the crack mechanism. The difference between external and internal temperatures, basic temperature difference and constraints are the main reasons of crack development on thin-walled concrete structures. Measures such as optimizing concrete mixing ratio, improving construction technology, and reducing temperature difference can prevent thin-walled concrete structures from cracking. Moreover, water-pipe cooling technology commonly used in mass concrete can be applied to thin-walled concrete structures to reduce temperature difference. This method is undoubtedly a breakthrough in anti-cracking technology for thin-walled concrete structures, particularly for thin-walled high-performance concrete structures. In addition, a three-dimensional finite element method is adopted to simulate the calculation of temperature control and anti-cracking effects f. Results show the apparent temperature controlling effect of water-pipe cooling for thin-walled concrete structures.

A new method for hydraulic mass concrete temperature control: Design and experiment

2021 ◽  
Vol 302 ◽  
pp. 124167
Author(s):  
Xiaochun Lu ◽  
Bofu Chen ◽  
Bin Tian ◽  
Yangbo Li ◽  
Congcong Lv ◽  
...  
Keyword(s):  
Temperature Control ◽  
Control Design ◽  
New Method ◽  
Mass Concrete ◽  
Concrete Temperature
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