The Development for Internet of Things Smart Home Service Operation Support Platform

Zhu, Xun; Xu, Zhi Fang; Hu, Man Dong

doi:10.4028/www.scientific.net/amm.507.187

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparing with mass concrete structures, these structures are thin and weak, so it is always a difficult problem to engineering circles that the crack often appears in these structures during construction. According to past experience of similar projects, shrinkage cracks easily appear in structure at the early stages of temperature rise or temperature drop [1][2][3][4][5][6][7][8]. In particular, some cracks usually appear in the middle length of structure, and shape of cracks are "middle width, pointed at both ends" of the "pit-shaped" vertical-type.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cooling Pipe in Thin-Walled Hydraulic Structure during Construction

Wang

Zhang

Wang³

et al. 2012

AMR

View full text Add to dashboard Cite

In view of the problem of concrete crack in the period of construction, this paper introduces the cause and the forming mechanism of crack in thin-walled concrete structure and points out that the difference between the inside and outside temperature at early stage and the basic difference of the temperature at later stage are considered as the main factors influencing the phenomena. This paper puts forward the application of pipe cooling which is used in the mass concrete to the thin-walled concrete structure. In doing so, the difference of the internal and surface temperature is reduced and the appearance of cracking is avoided. Under the basic theories of temperature field and stress field of concrete, the 3-D FEM with the numerical algorithm of pipe cooling is adopted to simulate the thermal field and stresses field of concrete aqueduct during construction and the result shows that good effect of temperature control and crack prevention is achieved in thin-walled concrete structure. At the same time, water cooling pipe has many merits including simple operation, easy adjustment, high adaptability, and low cost

show abstract

Section: Introductionmentioning

confidence: 99%