5) complete stress-strain curve 应力-应变全曲线 1. Loading through a servo-hydraulic testing machine under the displacement control is used to get the complete stress-strain curve. 在应变控制加载的条件下,得到了包含上升段和下降段的应力-应变全曲线、割线泊松比和体积应变等变化规律,并与普通混凝土...
This formula can be easily applied to CFST members' interfacial stress calculation.Yonghui HuangRonghui WangXiaofeng HuangInternational Conference on Civil Engineering,Architecture and Building MaterialsHuang, Y. H.; Wang, R. H.; Huang, X. F. 2011. Calculation of the interfacial tensile stress of...
(As′) is reduced and even turns into a compressive one, while the crack on the bottom part is widened and the tensile stress of the reinforcement there (As) is increased. In the meantime, the shear force is increased simultaneously and causes the existing crack to extend towards an ...
axial tensile strength with age are received.The conversion formulas between the axial tensile strength and the splitting tensile strength at different ages in 60-day are all received,meanwhile,the formula of tensile elastic modulus with age is obtained.The formula has much more modification and ...
The knifing zone length at δ ≥ 1.2 can be calculated from the formula given by Klušin et al. (4): [97]LK=d0(0.83δ−1)2tanαtanβ. If δ < 1.2, the knifing segment of the wedge can be constructed by a gradual reduction in the size of the sizing surface, yet the value...
A Aα = Substituting: it into the above cosα formula we get Whole stress in the inclined section: Pα P pα = = ⋅cosα =σ 0 cosα Aα A pα =σ 0 cosα 32 Whole stress in the inclined section: pα =σ 0 cosα k P P Decomposition: α k k σα = pα ...
and pressure applied to the shank on the distribution of stress inside the bolt and the corresponding ultrasonic measurements were analyzed [16,17]. For bolts in a shear joint subjected to bending loads only and for umbilical flange joint bolts experiencing both bending and tensile loads, the ...
2) axial tensile strength 轴心抗拉强度 1. The effects of steel fiber volumetric ratio,steel fiber slenderness ratio and steel fiber type on the splitting tensile strength,axial tensile strengthand axial tensile stress-strain curve of steel fiber reinforced concrete(SFRC) are studied. ...
When a casing string is designed, the effect of flexural stress can be estimated by using the aforementioned formula, and then it is suitable to increase appropriately the tensile safety factor of casing. Because the outside diameter of the collar is larger than that of the pipe body, the ...
On the other hand, it can be seen that the design formula proposed by Liang and Fragomeni [20] yields the best predictions of the ultimate axial strengths of CFSST columns over the entire range of D/t ratios. Regarding the D/t < 40 range, it can be seen that the CSM method ...