JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Realistic Analysis Method for Continuously Block-Placed Mass Concrete Structures Considering Block Size and Sequence of Concrete Placement
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Realistic Analysis Method for Continuously Block-Placed Mass Concrete Structures Considering Block Size and Sequence of Concrete Placement
;;;;
  PDF(new window)
 Abstract
The mass concrete structures are generally constructed in an incremental manner by deviding the whole structures by a series of many blocks. The temperature and stress distributions of any specific block are continuously affected by the blocks placed before and after the specific block. For an accurate analysis of mass concrete structures, the sequence of all the blocks must be accordingly considered including the change of material properties with time for those blocks considered. The purpose of this study is to propose a realistic analysis method which can take into account not only the influence of the sequence, time interval and size of concrete block placement on the temperatures and stresses, but also the change of material properties with time. It is seen from this study that the conventional simplified analysis, which neglects material property changes of some blocks with time and does not consider the effect of adjacent blocks in the analysis, may yield large discrepancies in the temperature and stress distributions of mass concrete structures. This study gives a method to choose the minimum number of blocks required to obtain reasonably accurate results in analysis. The study provides a realistic method which can determine the appropriate size and time interval of block placement, and can be efficiently used in the design and construction of mass concrete structures.
 Keywords
mass concrete structures;thermal stress;thermal cracking;early ages;temperature rise;block size;placement sequence;
 Language
Korean
 Cited by
 References
1.
초저발열콘크리트의 개발 및 대형매그콘크리트구조물의 수화열제어 시공기술, 1998.

2.
Comite Euro-Internation du Beton, 1993.

3.
Ph. D. Thesis, Div. of Struct. Engrg., 1994. vol.153D.

4.
ABAQUS -User's Manual, Ver 5.2, 1992.

5.
ASCE Jouranl of Structural Engineering, 1991. vol.117. 6, pp.1834-1851

6.
ASCE Journal of Structural Engineering, 1991. vol.117. 6, pp.1274-1288

7.
콘크리트 표준시방서, 1996.

8.
매스 콘크리트의 균일제어지침, 1986.

9.
서울대학교 공학박사학위 논문, 1994.

10.
대한토목학회 논문집, 1998. vol.18. I-1, pp.49-58

11.
콘크리트학회 논문집, 1995. vol.7. 2, pp.126-135

12.
콘크리트학회 논문집, 1994. vol.6. 5, pp.203-212

13.
콘크리트학회 논문집, 1995. vol.7. 4, pp.137-148

14.
콘크리트학회 논문집, 1992. vol.4. 3, pp.101-111

15.
1993년 콘크리트학회 봄 학술발표회 논문집, 1993. vol.5. 1, pp.219-224

16.
1993년도 대한토목학회 학술발표회 개요집, 1993. pp.311-314

17.
1994년도 콘크리트학회 봄 학술발표회 논문집, 1994. vol.6. 1, pp.233-237

18.
대한토목학회 학술발표회 논문집, 1995. vol.1. pp.583-586

19.
중앙대학교 건설대학원 석사학위논문(22회), 0000.

20.
Effect of Restraint, Volume Change and Reinforcement on Cracking of Mass Concrete, 1996. vol.207. 2R,

21.
(2nd Ed.), 1993.