Thermal and stress analysis of Kinta RCC dam

Noorzaei, J.; Bayagoob, Khaled Hamood; Thanoon, Waleed Abdulmalik; Jaafar, Mohd Saleh

doi:10.1016/j.engstruct.2006.03.027

Cited by 72 publications

(47 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Introductionmentioning

confidence: 99%

“…Dam concrete is considered to be a mass concrete with a poor binder content, 100-300 kg/m 3 , and with large admixtures dosage, up to 50 % of the cement replacement [1]. It has a large aggregate content and the maximum size of aggregate (MSA) can reach up to 150 mm [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…It has a large aggregate content and the maximum size of aggregate (MSA) can reach up to 150 mm [2,3]. The combination of the temperature gradients due to heat dissipation, the slow mechanical property development and, therefore, the cracking risk at early ages are the main concerns of mass concrete [2,3]. For an accurate cracking risk assessment it is necessary to determine the mechanical properties development, as well as the stress development during the first year [4,6].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dam and wet-screened concrete creep in compression: in situ experimental results and creep strains prediction using model B3 and composite models

2016

View full text Add to dashboard Cite

This paper proposes a methodology for the prediction of the compressive creep strains of dam concrete based on wet-screened experimental results at constant elevated temperature conditions measured in situ. Due to its large aggregate dimensions, the experimental characterization of dam concrete has particular constraints. The wet-screened concrete, obtained by sieving the aggregates larger than a given dimension, after mixing, is used to cast standard specimens and to embed monitoring devices. An experimental in situ installation using creep cells was used to obtain the compressive creep strain development over time for the maturing conditions of the dam core. The study of the effect of wet-screening procedure on creep in compression considers three types of concrete, dam concrete and two wet-screened concretes tested at three loading ages, 28, 90 and 365 days. The comparison between different types of concrete at different maturing conditions requires the definition of a reference state given by the maturity method, using the equivalent age, and relies on the fit of compressive creep strains to the RILEM recommended model B3. To take into account the effect of the aggregate content on the deformability properties of dam concrete, an equivalent two-phase composite model was applied. The equivalent composite model considered the equivalent matrix as the wet-screened concrete and the inclusions as the larger aggregates that are removed during the wet-screening procedure. Predictions obtained with the composite model are close to the dam concrete experimental results, for the tested loading ages.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dam and wet-screened concrete creep in compression: in situ experimental results and creep strains prediction using model B3 and composite models

2016

View full text Add to dashboard Cite

show abstract

“…Drugi raziskovalci (Léger et al, 1993a(Léger et al, , 1993bNoorzaei et al, 2006;Léger in Seydou, 2009) so obravnavali vpliv osenčenosti zaradi okoliškega terena na podlagi tako imenovanega terenskega faktorja, ki je izražen kot splošno razmerje med dejansko in teoretično izpostavljenostjo sončnemu sevanju celotne pregrade, kar pa je zelo nenatančno in torej glavna slabost teh raziskav. Še najbolje so doslej obravnavali učinek osenčenosti na površini pregrade raziskovalci Jin et al (2010), ki so pripravili algoritem za izračun osenčenosti, vendar so zelo nenatančno upoštevali topologijo okoliškega terena ob pregradi.…”

Section: Uvodunclassified

Determination of the shading of the downstream surface of the Moste concrete dam

Žvanut¹,

Vezočnik²,

Turk³

et al. 2014

Geod. vestn.

View full text Add to dashboard Cite

“…The available references, on the thermal effect due to the solar radiation, have focused on bridges [7][8], dams [9][10] and pavements [11][12]. Considering the large structural difference among large-span steel structures, bridges, dams and pavements, the proposed numerical methods in these papers are not directly applied to large-span steel structures.…”

Section: Introductionmentioning

confidence: 99%

Temperature Distribution and Structural Behavior of Box-Sectional Arch Structures Under Solar Radiation

Liu¹,

Chen²,

Zhou³

2013

Volume 9 Number 4

View full text Add to dashboard Cite

ABSTRACT:The temperature change of large-span steel arch structures normally appears when the structures are exposed to solar radiation, which may result in large displacement and stress. Therefore, there has been growing attention to both temperature distribution and structural response of the structures under the solar radiation. In order to investigate the response of large-span box-sectional steel arch structures formed by rectangular steel tubes, one rectangular steel tube specimen was designed and its temperature was measured under solar radiation. A numerical method was presented according to transient thermal analysis and then verified by experimental results. Both experimental and numerical results showed that the solar radiation had a significant effect on the temperature distribution of rectangular steel tubes. Considering the solar radiation, the temperature of rectangular steel tubes is about 18.1 o C higher than the corresponding ambient air temperature in summer. Moreover, the temperature distribution under solar radiation is extremely nonlinear. In order to study the structural response induced by the temperature change due to the solar radiation, a steel arch structure model is designed and the structural response due to temperature change is also investigated on this model. The results showed that the solar radiation has a remarkable effect on the thermal load response of large-span steel structures. The effect of the solar radiation has to be considered in the design process of large-span steel arch structures.

show abstract

Thermal and stress analysis of Kinta RCC dam

Cited by 72 publications

References 1 publication

Dam and wet-screened concrete creep in compression: in situ experimental results and creep strains prediction using model B3 and composite models

Dam and wet-screened concrete creep in compression: in situ experimental results and creep strains prediction using model B3 and composite models

Determination of the shading of the downstream surface of the Moste concrete dam

Temperature Distribution and Structural Behavior of Box-Sectional Arch Structures Under Solar Radiation

Contact Info

Product

Resources

About