scholarly journals 2117) Experimental Studies on Reinforced Concrete Beam-Column Connection : Part 4

1966 ◽  
Vol 41 (0) ◽  
pp. 235
Author(s):  
Yoshimasa Ohwada
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Experimental Studies ◽  
Reinforced Concrete Beam

Modeling the operation of structures made of dispersed-reinforced concrete with an alternating dynamic load of high intensity

2021 ◽  
Vol 14 (3) ◽  
pp. 36-44
Author(s):  
S. Nikolenko ◽  
Svetlana Sazonova ◽  
Viktor Asminin
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Load ◽  
High Intensity ◽  
Concrete Beam ◽  
Static Load ◽  
Dynamic Compression ◽  
Experimental Studies ◽  
Reinforced Concrete Beam ◽  
Beam Elements ◽  
Laminated Structures

A study of the properties of dispersed-reinforced concrete and a study of the effect of dispersed reinforcement on the operation of structures was carried out, mainly with a static load of the same sign. Based on the results of experimental studies, a comparison was made of the work of dispersed-laminated structures under alternating dynamic action of high intensity with the work of reinforced concrete beam elements under similar influences. The results of experimental studies of cubes and prisms for static and dynamic compression are also presented. The results of experimental studies allow us to conclude that there is a significant effect of dispersed reinforcement on the operation of structures under the investigated influences and the feasibility of combined reinforcement of structures. The use of dispersed reinforcement in structures will increase the resistance of structures to such influences.

METHOD OF MODELING A REINFORCED CONCRETE BEAM WITH DOUBLE REINFORCEMENT FOR STRENGTH, DEFORMATION AND FIRE RESISTANCE

2019 ◽  
Vol 9 (1) ◽  
pp. 4-9
Author(s):  
Sergey S. MORDOVSKY ◽  
Nikolay A. ILYIN ◽  
Denis A. PANFILOV ◽  
Valeriya N. TALANOVA ◽  
Yana A. BUZOVSKAYA
Keyword(s):  
Reinforced Concrete ◽  
Fire Resistance ◽  
Concrete Beam ◽  
Concrete Beams ◽  
Experimental Studies ◽  
Reinforced Concrete Beam ◽  
Reinforced Concrete Beams ◽  
Scale Model ◽  
Technical Solution ◽  
Labor Costs

The article presents a new technical solution, which relates to the field of construction, in particular, to the testing of bending reinforced concrete elements - building beams for strength, deformation and fire resistance on a scale model. The new method of solution implies an increase in the information content, visual clarity and depth of experimental studies of reinforced concrete beams as a result of using the cost-effective way of designing geometric and forceful similarity to the scale model of reinforced concrete beams for strength, deformation and fire resistance. The proposed method allows us to estimate the limiting states of a reinforced concrete beam by strength, deformation and fire resistance; develop an analytical model for calculating the actual fire resistance; save on labor costs in the manufacture of large scale model of full scale design for its testing.

Fragility Functions for Older Reinforced Concrete Beam-Column Joints

2006 ◽  
Vol 22 (1) ◽  
pp. 215-238 ◽  
Author(s):  
Catherine A. Pagni ◽  
Laura N. Lowes
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Probability Distributions ◽  
Experimental Studies ◽  
Reinforced Concrete Beam ◽  
Fragility Functions ◽  
Reinforcement Probability ◽  
Concrete Crack ◽  
Damage States ◽  
Joint Deformation

Fragility functions are developed to predict the method of repair required for older reinforced concrete beam-column joints damaged due to earthquake loading. The results of previous experimental studies are used to develop empirical relationships between damage states and engineering demand parameters, such as interstory drift, joint deformation, and number of load cycles. Damage states are proposed and linked deterministically with commonly employed methods of repair; these damage states are characterized by parameters such as concrete crack width, extent of concrete spalling, and yielding and buckling of reinforcement. Probability distributions are fit to the empirical data and evaluated using standard statistical methods. The results of this effort are families of fragility functions that predict the required method of repair for a damaged joint.

scholarly journals EXPERIMENTAL TEST INSTALLATION OF BENDING REINFORCED CONCRETE BEAM ELEMENTS

2019 ◽  
Vol 9 (3) ◽  
pp. 12-16
Author(s):  
Denis A. PANFILOV ◽  
Nikolay A. ILIYIN ◽  
Sergey S. MORDOVSKY ◽  
Yana A. BUZOVSKAYA
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Experimental Studies ◽  
Reinforced Concrete Beam ◽  
Technical Solution ◽  
Test Installation ◽  
Measuring Device ◽  
Beam Elements ◽  
Experimental Installation ◽  
Supporting Element

The article outlines a new technical solution related to the field of construction, in particular to the testing technique, the testing of materials and structures, and the application for conducting experimental studies of the strength and deformability parameters of reinforced concrete beam elements under static bending conditions. The experimental installation includes a pre-assembled booth, a loading mechanism, a force measuring device, a thrust element and a strap clamp. In this case, the stand contains a stop element, jacks, tensioning clamps, test specimen. The supporting element is composite and contains a base in the form of a channel and an amplifier in the form of a two-lobe. Clamping hooks are made in the form of tight fastened anchorages, equipped with roller supports. As a loading device, jacks are installed in the crevice-slot of the channel and secured by mounting screws to the base of the thrust element. The compact, simple and easy experimental installation with the increased reliability of the power device, tensioning clamps and roller bearings of the subject under bending of the concrete sample is offered.

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