To obtain the bond strength calculating formula of concrete-filled square steel tube specimens,push-out experiments were carried out under different slendernesses and width-thickness ratios,and the change principle of bond strength of concrete-filled square steel tube specimens was obtained.According to...
Bond strength of CFRP-concrete elements under freeze-thaw cycles. Composite Structures. 2010;92(4):973-83.Pierluigi Colombi,Giulia Fava,Carlo Poggi.Bond strength of CFRP–concrete elements under freeze–thaw cycles[J]. Composite Structures .2009(4)...
Degradation of bond strength due to corrosion of steel strands is of great importance for serviceability of prestressed concrete structures. An analytical model is proposed to demonstrate the effect of corrosion of steel strand on reduction of bond stren
strength of concrete; Ef is the elastic modulus of CFRP strip, Af is the cross-sectional area of the CFRP strip; Lfailure=2hf+tf+4mm is the length of the failure contour; ca is the smallest distance between the CFRP strip and the surface of the concrete [7]; reduction factor βL,s...
a useful state-of-the-art report about bond of prestressing tendons can be found. In particular, other than well recognised relevant parameters such as diameter of prestressing steel, initial prestressing force, concrete strength [8], a number of other parameters have been ...
bond strength [′bänd ‚streŋkth] (chemistry) The strength with which a chemical bond holds two atoms together; conventionally measured in terms of the amount of energy, in kilocalories per mole, required to break the bond. (engineering) ...
diameter strands is proportional to the concrete strength. A formula for predicting the NASP pullout test value as a function of concrete strength was ... A Hatami,G Morcous,KE Hanna,... - Transportation Research Board Meeting 被引量: 5发表: 2011年 加载更多来源...
Influence of lightweight aggregate on the bond properties of concrete with various strength grades 热度: Effect of heating palladium-silver alloys on ceramic bond strength 热度: Comparativeevaluationofbondstrengthofvariousmetal–ceramicrestorations
Currently, only an over-simplified empirical formula (EF): τb,max=4fcm is proposed for predicting the bond strength between printed concrete and reinforcement [20]. As a deterministic model, this EF merely considers the influence of compressive strength without considering other factors (such as ...
The bond strength calculation formula is obtained based on the nonlinear superposition principle, and a moment-bearing formula considering bond performance under fire is formulated. Finally, using the finite element method, five concrete beams under fire is simulated, and establish a nonlinear spring ...