Results 31 to 40 of about 340 (173)
ULTIMATE TENDON STRESS IN BEAMS PRESTRESSED WITH EXTERNAL TENDONS
Doboku Gakkai Ronbunshuu E, 2006 This paper presented a comprehensive review of existing prediction equations for the evaluation of tendon stress at ultimate of externally prestressed concrete beams. The validity of each prediction equation was examined by large data of experimental results, which were collected from available literature. A new prediction equation for computing tendon
Bui, K.D., Niwa, J.
openaire +2 more sources
Review and prospects of shear test of bolted rock joints
Deep Underground Science and Engineering, EarlyView.The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren +4 more
wiley +1 more source
Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods
Structural Concrete, EarlyView.Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley +1 more source
International Journal of Concrete Structures and Materials, 2022 Based on the conceptual design of an advanced wind turbine tower system, use of ultra-high-performance cementitious composites material with compressive strength of 200 MPa (UHPC-200) is proposed to ensure high durability and ductility of the UHPC hybrid
Xiangguo Wu +5 more
doaj +1 more source
Large‐scale tests of 50‐year‐old prestressed concrete bridge girders
Structural Concrete, EarlyView.Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo +7 more
wiley +1 more source
Journal of Engineering, 2023 This research is devoted to study the strengthening technique for the existing reinforced concrete beams using external post-tensioning. An analytical methodology is proposed to predict the value of the effective prestress force for the external ...
Nazar K. Ali Oukaili +1 more
doaj +1 more source
Flexural performance of concrete‐filled steel tubular beams with wood chip aggregate
Structural Concrete, EarlyView.Abstract This study investigates the flexural performance of concrete‐filled steel tubular (CFST) beams with partial replacement of aggregates by wood chips (0%–25%) through experimental and numerical analysis. This study is novel in that it experimentally and numerically investigates the flexural behavior of CFST beams with partial replacement of ...
Mizan Ahmed +6 more
wiley +1 more source
Analysis of Short-Term Prestress Losses in Post-tensioned Structures Using Smart Strands
International Journal of Concrete Structures and Materials, 2022 The proper estimation of prestressing force (PF) distribution is critical to ensure the safety and serviceability of prestressed concrete (PSC) structures. Although the PF distribution can be theoretically calculated based on certain predictive equations,
Sang-Hyun Kim +3 more
doaj +1 more source
Pre‐failure behavior of continuous post‐tensioned and post‐grouted beam in case of tendon failure
Structural Concrete, EarlyView.Abstract Grouted tendons are a common solution for long‐span bridge structures. The grout provides bond and corrosion protection for prestressing steel. However, if the grouting is defective, corrosion of the prestressing steel may initiate and eventually lead to tendon failure.
Olli Asp +2 more
wiley +1 more source
Flexural Strengthening For Reinforced Concrete T-Shaped Beam By Tightened Strands Position Change
Eurasian Journal of Science and Engineering, 2023 In this study, external strengthening of T-shape beams is investigated using a new profiling technique by drop downing the tendon from the flange to near the bottom of the beam, the investigation includes the effect of different turning point position of
Halmat Muslih Burhan +1 more
doaj +1 more source