scholarly journals CALCULATION OF DYNAMIC LOAD IMPACT ON REINFORCED CONCRETE ARCHES IN THE GROUND

Vestnik MGSU ◽  
2016 ◽  
pp. 35-43
Author(s):  
Nikita Barbashev ◽  
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Load ◽  
Load Impact

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.

scholarly journals Evaluation of bearing capacity of reinforced concrete box ribbed arch bridge based on dynamic load test

2021 ◽  
Vol 233 ◽  
pp. 01047
Author(s):  
Mao He ◽  
Xin Fu ◽  
Shunchao Chen
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Load ◽  
Damping Ratio ◽  
Vibration Characteristics ◽  
Load Test ◽  
Driving Safety ◽  
Original Material ◽  
Arch Bridge ◽  
Dynamic Load Test ◽  
And Function

Dynamic load test is to measure the natural vibration characteristics of the bridge structure or the forced vibration characteristics under dynamic load, and to evaluate the driving performance, driving safety and comfort of the bridge through dynamic load test. In order to evaluate the stress state and working performance of a reinforced concrete box-ribbed arch bridge, the load test of the bridge is carried out. Dynamic load test is used to test the inherent fundamental frequency, damping ratio and impact coefficient of the bridge through pulsation test and sports car test. Through the experiment with the key parts of the stress (strain) and displacement load and other important data, through analysis and study, the comprehensive analysis of the phenomenon of calculation and test, a comprehensive performance evaluation structure and function whether meet the design requirements, to provide technical basis for the safety of the bridge operation, and provide the original material for the bridge maintenance and management in the future.

Reinforced concrete slabs on yielding supports under dynamic load

2021 ◽  
Vol 23 (3) ◽  
pp. 109-117
Author(s):  
G. I. Odnokopylov ◽  
Z. R. Galyautdinov ◽  
V. B. Maksimov
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Loading ◽  
Dynamic Load ◽  
High Efficiency ◽  
Experimental Results ◽  
Displacement Velocity ◽  
Concrete Slabs ◽  
Elastic Plastic ◽  
Deformation Stage ◽  
Reinforced Concrete Slabs

The paper presents the experimental results of strength and deformability of reinforced concrete slabs on yielding supports arranged along the perimeter under the dynamic loading. Crushable ring-shaped inserts deforming at the elastic, plastic and curing stages are considered as yielding supports. The displacement, velocity and acceleration are evaluated depending on the deformation stage of yielding supports. The high efficiency is shown for the use of yielding supports, which leads to a significant reduction in the structure displacement, strain, and stress.

Reinforced Grouting Material Member Force Performance Research

2014 ◽  
Vol 578-579 ◽  
pp. 1262-1265
Author(s):  
Xi Guang Cui ◽  
Sheng Liang Zhao ◽  
Wei Yang ◽  
Xu Yang Tong ◽  
Jie Geng
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Load ◽  
Load Test ◽  
Deformation Condition ◽  
Grouting Material ◽  
Reinforced Concrete Member ◽  
Dynamic Load Test ◽  
Stress And Deformation ◽  
Reversed Cyclic ◽  
Performance Research

This paper made the same size of reinforced grouting material vertical bending cantilever beam and reinforced concrete ones, respectively for the same static and dynamic load test, the static load for drab one-time loading level, dynamic load as low reversed cyclic loading, observe their cracking and deformation condition, draw the response relationship between the load and displacement hysteresis curves, skeleton curves, Test and data results show that the stress and deformation of the reinforced grouting material member is close to or even better a reinforced concrete member, so it is reliable to replace concrete with grouting material.

Research on Simplified RC Frame Column Model under Blast Load

2010 ◽  
Vol 163-167 ◽  
pp. 4346-4349
Author(s):  
Xing Guo Wang ◽  
Nan Ge ◽  
Cui Min Wang ◽  
You Po Su
Keyword(s):  
Reinforced Concrete ◽  
Numerical Model ◽  
Dynamic Load ◽  
Static Load ◽  
Impact Load ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Simplified Models ◽  
Dynamic Behaviors ◽  
Concrete Frame

An overall numerical model for a reinforced concrete frame was established and in parallel, a group of simplified models were established for the same structure according to the particular characteristics of the subjected load such as impact load, dynamic load and quasi-static load, to investigate their dynamic behaviors. Results show that it is reasonable to introduce the simplified models for reinforced concrete frame in analysis work.

scholarly journals Dynamic displacement analysis of reinforced concrete deep beams made of high strength concrete. Part II: Dynamic displacement analysis of reinforced concrete deep beams made of high strength C200 grade concrete

2018 ◽  
Vol 67 (2) ◽  
pp. 25-48
Author(s):  
Waldemar Cichorski
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Load ◽  
High Strength Concrete ◽  
Construction Materials ◽  
High Strength ◽  
Deep Beam ◽  
Deep Beams ◽  
Dynamic Displacement ◽  
Displacement Analysis ◽  
Strength Concrete

The dynamic load displacements were analysed of rectangular concrete deep beams made of very high strength concrete, grade C200, including an evaluation of the physical non-linearity of the construction materials: concrete and reinforcing steel. The analysis was conducted using the method presented in [1]. The numerical calculation results are presented with particular reference to the displacement state of rectangular concrete deep beams. A comparative analysis was conducted on the effect of the high-strength concrete and the steel of increased strength on a class C200 concrete deep beam versus the results produced in [10] for a class C100 concrete deep beam. Keywords: mechanics of structures, reinforced concrete structures, deep beams, dynamic load, physical non-linearity

scholarly journals Reinforced concrete beams on yielding supports with thrust under dynamic load

2021 ◽  
Vol 23 (6) ◽  
pp. 143-156
Author(s):  
O. G. O.G. Kumpyak ◽  
D. R. Galyautdinov
Keyword(s):  
Reinforced Concrete ◽  
Crack Resistance ◽  
Dynamic Load ◽  
Concrete Beam ◽  
Energy Intensity ◽  
Concrete Beams ◽  
Horizontal Displacement ◽  
Reinforced Concrete Beam ◽  
Reinforced Concrete Beams ◽  
Positive Effect

Reinforced concrete beam with limited horizontal displacement on yielding supports under dynamic loading require considering the thrust response. The thrust presence significantly increases the beam strength and crack resistance. The use of yielding supports increases their energy intensity. The purpose of the paper is the experimental study of using yielding supports under the dynamic load conditions. The experimental results concern the reinforced concrete beam with yielding supports with a thrust under the dynamic load. The paper shows the effect from yielding supports on the strength, deformability, and crack resistance of reinforced concrete beams. The obtained results indicate to a positive effect form the use of yielding supports of the beam under the dynamic load.

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