It was found that the creep factor and the suggested deflection limits given in Eurocode 5 might not be appropriate to achieve the expected target reliabilities. To obtain a more consistent reliability, more suitable values for the mentioned parameters were suggested. However, the primary aim was ...
They proposed a reduction factor, α (α = 0.92 and 0.86 for recycled coarse and fine aggregate concrete, respectively) for modifying the modulus of rupture when predicting the short-term and long-term deflection of RAC beams using the ACI method. Modifying the tensile strength of the ...
Longterm deflection of statically determinate reinforced concrete beams under service loads is analytically studied. The BP2 creep and shrinkage model is adopted and extended to accommodate concrete tensile behavior by assuming a tensile stressstrain relation. The creep rate is related to the stress in...
These codes make provision for tension stiffening effects and also distinguish between short- and long-term behaviour. What is not known, however, is how rapidly tension stiffening decays with time or how significant this rate of decay might be for deflection calculations. This paper reviews the ...
1) long-term deflection 长期下挠1. The long-term deflection of Long Span Prestressed Concrete Box-girder Bridge(LSPCBB) is getting more and more serious in terms of structure safety. 最后,对桥梁设计计算、桥梁混凝土施工及箱梁下挠的防治技术进行论述,并对开展控制结构长期下挠的研究提出了建议。
The calculation result based on the structure deflection is 7% less than the observed value. The mid-span pre-stress loss is often accompanied by the "tension" of the side one, and this "tension" phenomenon is beneficial for long-term deflection control. 展开 ...
Layer model for long-term deflection analysis of cracked reinforced concrete bending members. Mechanics of Time-Dependent Materials, 16 (2), ... D Bacinskas,G Kaklauskas,V Gribniak - Mechanics of time-dependent materials 被引量: 0发表: 2012年 BACK-CALCULATION OF LAYER PARAMETERS FOR LTPP ...
Effect of Reinforcement Ratio on Time-Dependent Deflection of Hybrid GFRP/Steel Reinforced Concrete Beams The outcome showed that this design standard overestimated the long-term deflection of HGSRC beams. Also, a design method based on ACI 440.1R-15 with ... HT Quang,NH Phong,HN Van,... -...
Short-term and long-term bending properties of nail-laminated timber constructed of fast-grown plantation eucalypt elastic region and the effects of environmental conditions and structural grade of timber on long-term bending creep deflection of the panels were evaluated... M Derikvand,N Kotlarewski...
1) long-term deflection multiplier 附加挠度增大系数2) increased deflection factor 挠度增大系数3) amplification factor for additional stress 附加应力增大系数4) ratio of dilatation 挠度扩大系数5) deflection coefficient 挠度系数6) Additional coefficient 附加系数 例句>> ...