Post-tensioned steel structures
Experimental Study on Waterproofing Properties of Putty-Based Composite Rubber Strip for Underground Post-Tensioned Precast Concrete Structures
... initial post-tensioning, dial gauges were installed inside the culverts to measure joint space variations in the process of ...the post-tensioning steel bars were ...the steel bars were set in ...
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Seismic Response of Post Tensioned Beam Strengthened with Fiber Reinforced Polymer
... damaged structures with steel demands plenty of time, also steel is susceptible to corrosion and increases the stiffness of columns exposing a structure to higher transmitted seismic ...deficient ...
6
Analysis of concrete beams prestressed and post-tensioned with carbon fiber reinforced polymer (CFRP) bars.
... concrete structures reinforced with conventional steel, especially when built in hostile ...and steel reinforcements lead to significant differences in the behaviour between beams prestressed with ...
170
Modeling the re anchoring of a ruptured tendon in bonded post tensioned concrete
... bonded post-tensioned concrete bridges have been reported to have ruptured tendons due to corro- sion (Concrete Society 2002, Great Britain Highways Agency et ...bonded post-tensioned concrete ...
8
Ultimate Unbonded Tendon Stress in CFRP Strengthened Post-Tensioned Indeterminate I-Beams Cast with HSCs
... concrete structures especially the end-blocks of prestressed concrete structures, where concrete compaction by vibration, due to large amount of steel reinforcement is ...
10
A Review on Seismic Assessment of Post-Tensioned Flat Slab
... Vakas K. Rahman et.al in the year 2013 studied RCC and prestressed concrete flat slab. The research was focused on the designing and estimating RCC and prestressed flat slabs of various ports. R.C.C. FLAT SLAB was ...
5
Seismic design and assessment of resilient post tensioned steel frames with viscous dampers
... resilient structures with the inherent potential to minimize structural and non-structural damage is ...resilient structures we mean that these structures result in lower damage of the structural ...
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Experimental investigation of delamination behavior in curved post-tensioned concrete structures
... Specimen 1 had four center hole rams and four center hole load cells at the live-end anchor block and four center hole load cells at the dead-end anchor block. The tendon groups comprising both specimens were stressed at ...
10
EC8 based seismic design and assessment of self centering post tensioned steel frames with viscous dampers
... as steel moment-resisting frames (MRFs) [1-3], showed that these systems experience significant inelastic deformations in structural members under the design basis earthquake (DBE; 475 yrs return period) ...
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Collapse risk and residual drift performance of steel buildings using post tensioned MRFs and viscous dampers in near fault regions
... The destructive potential of near-fault ground motions was evident after many earthquakes such as the Northridge, California (1994); Kobe, Japan (1995); Chi-Chi, Taiwan (1999); and L’Aquila, Italy (2009). These ...
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The effect of prestress force magnitude and eccentricity on natural bending frequencies of prestressed concrete structures
... and post-tensioned rectangular hollow steel ...each steel specimen ...vs. post-tensioned, and further detail is given in Section ...
385
Strengthening of pre damaged HSC columns using post tensioned steel straps
... innovative post-tensioned steel strapping strengthening solution at enhancing the behaviour of pre-damaged plain concrete ...the post-tensioned steel straps were extremely ...
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Steel Fibres as Reinforcement in Post tensioned Flat Slabs
... focusing on fibre in load carrying concrete structures, gaining relatively good results. SFRC has also successfully been employed in post-tensioned structural elements with no mild reinforcement ...
10
Performance Evaluation of Post Tensioned Concrete Beams with Bonded System
... galvanized steel or plastic ducts. The galvanized steel or plastic ducts are then cast into the concrete section at the required profile and form a voided path through which the strands can be ...of ...
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A Study on Post Tensioned T Beams Strengthened with AFRP Fabric
... Aramid Fiber as an external reinforcement is used extensively to deal with the strength requirements related to flexure in structural systems. The manufacturing unit of good quality of fibers is Kevlar. The modulus of ...
6
Case study to determine the camber of post- tensioned 'I' beam
... 2.2.2 Prestressing Reinforcement 8 2.2.3 Anchorage System and Equipment 9 2.3 Properties of Material for Prestressed Concrete 12 2.3.1 Strength of Concrete 12 2.3.2 Modulus of Elasticity of Concrete 13 2.3.3 Creep and ...
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Damage Detection in Post-Tensioned Slab Using 2D Wavelet Transforms
... In the previous section, theories required for 2D wavelet transform were persuaded . This section investigates the implementation of this theory to detect damage of the post- tensioned concrete slabs. After ...
14
Optimization of Precast Post tensioned Concrete I Girder Bridge
... There are many acceptable designs for a single design problem but among all the acceptable designs, one which is most economical will satisfy both structural engineering standards as well as economical need. The act of ...
7
Analysis and Design of Post Tention Concrete Slabs
... on post- tensioned flat plates, bonded or unbonded, may be analyzed as for rigid frames in accordance with the provisions of the code ( IS, ACI ...by post-tensioning has a more gentle ...
9
Flexural Behaviour on Geopolymer Concrete Pre Stessed and Post Tensioned Beams
... In this study, four beams of 3200 x 250 x 125 mm size were cast (Two normal concrete and two geopolymer concrete beams). At the time of casting, hollow ducts of 60 mm size with grouting provisions were installed for ...
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