prestressed concretetransmission lengthmodellingbond strengthThis paper presents an analytical model for simulating the bond between steel and concrete, in precast prestressed concrete elements, during the prestressing force release. The model establishes a relationship between bond stress, steel and concrete ...
the slip between the CFRP and concrete and the cracking type were studied in detail.From the experimental study,it could be found that the influences on bond strength of binder strength,slot size and carbon fiber reinforced surface treatment technology were significant,but the curing time was ...
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
In particular, the bond stress-slip characteristics of reinforcing steel may significantly influence the stiffness, strength, ductility, and safety of structural members and systems. A factor paramount to bond performance is the cracking of concrete and thus its tensile stress-strain behavior. In this...
a他就是个傻逼 He is compels silly[translate] aWhen there is adequate bond between the prestressing tendon and concrete, it is called 当有充分债券在预加应力的腱之间和具体的时,它叫[translate]
Bond Performance of High-Capacity Strands in High Strength Concrete The finite element method was applied to simulate the bond between the prestressing strand and concrete. A parametric analysis was conducted to analyze the factors affecting transfer length. With the comparison of the non-pretensioned ...
EVALUATING THE BOND OF 0 . 7 IN . DIAMETER PRESTRESSING STRANDS FOR CONCRETE BRIDGE GIRDERS 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,... - Transport...
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 ...
ALTERNATIVE MATERIALS FOR THE REINFORCEMENT AND PRESTRESSING OF CONCRETE. CHAPTER 2. GLASS-FIBER REINFORCING BARS The following mechanical properties of GFRP (Glass Fibre Reinforced Plastic) rebars are presented and illustrated: a) tensile strength; b) tensile modulus ... M. Ehsani 被引量: 23发表:...
Bond between strands and high-strength normal-weight and lightweight aggregate concretes Strands consisting of seven prestressing wires of smooth surface, which are arranged in twisted position around the longitudinal axis of the strand, are widely used in various fields of building industry. The goal...