Results 21 to 30 of about 16,007 (267)
CFRP strengthened continuous concrete beams [PDF]
Structures <html_ent glyph="@amp;" ascii="&"/> Buildings, 2003 This paper reports the testing of five reinforced concrete continuous beams strengthened in flexure with externally bonded carbon-fibre-reinforced polymer (CFRP) laminates. All beams had the same geometrical dimensions and internal steel reinforcement. The main parameters studied were the position and form of the CFRP laminates.
El-Refaie, S.A. +2 more
openaire +2 more sources
Effect of maximum grain size on value of modulus of rupture reactive powder concrete
Media Komunikasi Teknik Sipil, 2020 Modulus of rupture (R) is a measurement of a tensile strengh of a concrete beam. The value of R is affected by the size of fine aggregat grain, the density of the concrete beam and the water-cement ratio.
Widodo Kushartomo +2 more
doaj +1 more source
Durability of preflex beam under cyclic loading
Engineering Science and Technology, an International Journal, 2021 Preflex beam girders with remarkable advantages are widely used in bridge structures. With aging, preflex beam bridges undergo concrete cracking and degrade as the cracks propagate and deteriorate due to repeated service load application and exposure to ...
Ahmadullah Nasiri, Tetsuhiro Shimozato
doaj +1 more source
Design And Tests Of Prestressed Concrete Beams [PDF]
Fire Safety Science, 1997 A prestressed TT beam had been designed considering the ultimate limit state of bending, and considering a temperature distribution given by a graph which was valid for a section with a similar shape. When tested in a furnace, it proved to have a fire resistance of only 79 minutes instead of the 2 hours foreseen by the calculation. An investigation was
Franssen, Jean-Marc, Brüls, Aloïs
openaire +2 more sources
Heliyon, 2022 Existing literatures on combined effects of blast-impact loadings on steel-concrete composite beams are limited. In this study, behavior of steel-concrete composite beam subjected to combined blast-impact loading was investigated using LS-DYNA nonlinear ...
Tesfaye Alemu Mohammed, Solomon Abebe
doaj +1 more source
Comparative Study of Reinforced Concrete Beams in School Buildings Using Prestressed Concrete Beams
Journal of Civil Engineering and Planning, 2022 Building construction in Indonesia generally uses concrete. The concrete used for building structures, such as beams, generally utilizes reinforced concrete. It is very rare to see the use of prestressed concrete for building structures such as beams, especially in Batam City.
Petrus Haryanto Wibowo, Dony Dony
openaire +1 more source
Behavior of Prestressed Concrete Beam using Reactive Powder Concrete
Journal of Civil EngineeringThe behavior of prestress pretension beams made of Reactive Powder Concrete (RPC) concrete with compressive strength above 120 MPa included in the Ultra High Performance Concrete (UHPC) classification was investigated to study the mechanical properties ...
Ignatius H. Sumartono +3 more
doaj +1 more source
Structural Behavior of Steel-Concrete Composite Beam using Bolted Shear Connectors: A Review
MATEC Web of Conferences, 2018 Conventional steel-concrete composite beams have been recognized to exhibit stronger structural characteristics, in terms of strength and stiffness, when compared to pure steel or reinforced concrete beams.
Loqman Nadiah +3 more
doaj +1 more source
MATEC Web of Conferences, 2017 Pumice has been proven as substitution material aggregate in lightweight aggregate concrete (LWAC). However due to its characteristic, pumice has the disadvantages of its excessive water absorption during preparation of concrete mixture which may reduce ...
Wijatmiko Indradi +2 more
doaj +1 more source
Prestress Loss Distributions along Simply Supported Pretensioned Concrete Beams
Electronic Journal of Structural Engineering, 2016 The prestressing forces in prestressed tendons undergo a process of reduction over a period of time. A common assumption is that prestress loss is constantly distributed throughout the span of a simply supported pretensioned concrete beam.
J. Kent Hsiao
doaj +1 more source