scholarly journals Static load test of RC T-beam bridge flexural strengthening with externally bonded steel plates

2021 ◽  
Vol 791 (1) ◽  
pp. 012018
Author(s):  
Xilong Zheng ◽  
Hao Du ◽  
Runbo Zhang ◽  
Qinglin Ma ◽  
Hongshuai Gao
Keyword(s):  
Static Load ◽  
Load Test ◽  
Steel Plates ◽  
Static Load Test ◽  
Flexural Strengthening ◽  
Externally Bonded ◽  
Beam Bridge ◽  
T Beam

The Modification to the FEM Model of the Prestressed Concrete Beam with the Combination of the Data of Static and Dynamic Test

2014 ◽  
Vol 707 ◽  
pp. 401-405
Author(s):  
Tao He ◽  
Chong Ji Zhao
Keyword(s):  
Prestressed Concrete ◽  
Static Load ◽  
Dynamic Test ◽  
Load Test ◽  
State Variables ◽  
Static Load Test ◽  
Fem Model ◽  
Modified Model ◽  
Finite Element Software ◽  
T Beam

Using the finite element software ANSYS to establish the model of prestressed concrete T beam .With the combination of dynamic and static load test data, the objective function was constructed by taking the vertical deflection of the static load test and the top five vertical natural frequency of dynamic test as state variables. The results revealed that,after being modified ,the error between the calculation value and the testal results of the model was converged in a reasonable error range.In addition ,The modified model could be used in the assessment of bridge structure performance,and it shows the practical application value.

Static Load Test and Modal Analysis of Qingshui River Bridge

2012 ◽  
Vol 588-589 ◽  
pp. 166-169
Author(s):  
Jian Rong Yang ◽  
Zuo Xiong Zheng ◽  
He Xian Su ◽  
Zheng Cong Lai
Keyword(s):  
Modal Analysis ◽  
Natural Vibration ◽  
Static Load ◽  
Natural Frequencies ◽  
Load Test ◽  
Static Load Test ◽  
Efficiency Ratio ◽  
Bridge Structures ◽  
T Beam ◽  
Concrete Deck

A load test on a multi-girder concrete bridge of 30m Span having a non-composite deck slab is described. The bridge was designed to have eight simple supported spans, each consisting of a cross section with six RC T beam. Through analyzing the static and dynamic character of bridge structures, calculating efficiency ratio of load test, picking up the results of observation points, it was determined that the girders were acting non-compositely with the concrete deck and that significant restraint was being developed at the bearing supports. Modal analysis and identification ascertain the characteristic properties of bridges from their response. The damage in bridges may be reflected in the changes of their natural frequencies or modes of natural vibration.

Comparative Analysis of Dynamic/Static Load Tests on Simple Supported Beam Bridge Based on Load Efficiency

2011 ◽  
Vol 368-373 ◽  
pp. 2011-2015
Author(s):  
Xian Min Zhang ◽  
Xiao Hui Guo
Keyword(s):  
Quantitative Assessment ◽  
Static Load ◽  
Load Test ◽  
Calibration Coefficient ◽  
Static Load Test ◽  
Bridge Inspection ◽  
Inspection Method ◽  
Static Calibration ◽  
Load Tests ◽  
Beam Bridge

Static load test is now recognized as a reliable bridge inspection method. However, this method has to interrupt transportation and consume manpower and material greatly. Firstly, this paper introduced the mathematic relation between static calibration coefficient and dynamic calibration coefficient, which are achieved by dynamic/static load tests with different load efficiencies—by comparing them, the proposed equation are verified. Quantitative assessment of bridge is achieved by combining dynamic load inspection method.

scholarly journals MODELING OF THE JACKED PILE STATIC LOAD TEST WITH PLAXIS 3D / SPAUSTINIO POLIO BANDYMO STATINE APKROVA MODELIAVIMAS PLAXIS 3D

2016 ◽  
Vol 8 (5) ◽  
pp. 495-498
Author(s):  
Tautvydas Statkus
Keyword(s):  
Building Materials ◽  
Model Building ◽  
Static Load ◽  
Load Test ◽  
Static Load Test ◽  
Model Geometry ◽  
Comparison Of The Results ◽  
3D Software ◽  
Installation Technology ◽  
Plaxis 3D

In this article jacked pile installation technology and its current processes, altering the base physical and mechanical characteristics are discussed. For the jacked pile static load test simulation Plax 3D software was selected, the opportunities and developments were described. Model building, materials, models, model geometry, finite elements, boundary conditions and assumptions adopted in addressing problems described in detail. Three different tasks formulated and load-settlement dependence a comparison of the results with the experiment given. Conclusions are formulated according to the modeling results. Šiame straipsnyje aptarta spaustinių polių įrengimo technologija ir ją taikant vykstantys procesai, keičiantys pagrindo fizines ir mechanines charakteristikas. Spaustinio polio bandymui statine apkrova modeliuoti pasirinktas PLAXIS 3D programinis paketas ir aprašytos jo galimybės bei raida. Detaliai nupasakotas modelio kūrimas, medžiagų modeliai, modelio geometrija, baigtiniai elementai, kraštinės sąlygos ir priimamos prielaidos sprendžiant problemą. Suformuluoti trys sprendžiami uždaviniai ir apkrovos bei nuosėdžio priklausomybe pateikiamas rezultatų palyginimas su eksperimentu. Atsižvelgiant į modeliavimo rezultatus suformuluotos išvados.

Static Load Test of Frame-Structure Slab

2013 ◽  
Vol 790 ◽  
pp. 227-230
Author(s):  
Jian Feng Su ◽  
Yu Feng Xu
Keyword(s):  
Carrying Capacity ◽  
Static Load ◽  
Load Test ◽  
Frame Structure ◽  
Test Results ◽  
Static Load Test ◽  
Important Method ◽  
Floor Slab ◽  
Testing Scheme

Floor slab static load test is a important method to judge the performance and carrying capacity of the slab. This paper, with the background of a factory frame-structure slab, introduced the testing scheme, the details of the testing process as well as the test results. The testing cases provide a useful reference for the same type of project.

scholarly journals Comparison of Numerical Analyses with a Static Load Test of a Continuous Flight Auger Pile

2014 ◽  
Vol 22 (4) ◽  
pp. 1-10 ◽  
Author(s):  
Michal Hoľko ◽  
Jakub Stacho
Keyword(s):  
Load Distribution ◽  
Static Load ◽  
Numerical Models ◽  
Load Test ◽  
Numerical Analyses ◽  
Static Load Test ◽  
Material Models ◽  
The Common ◽  
Constitutive Material ◽  
The Impact

Abstract The article deals with numerical analyses of a Continuous Flight Auger (CFA) pile. The analyses include a comparison of calculated and measured load-settlement curves as well as a comparison of the load distribution over a pile's length. The numerical analyses were executed using two types of software, i.e., Ansys and Plaxis, which are based on FEM calculations. Both types of software are different from each other in the way they create numerical models, model the interface between the pile and soil, and use constitutive material models. The analyses have been prepared in the form of a parametric study, where the method of modelling the interface and the material models of the soil are compared and analysed. Our analyses show that both types of software permit the modelling of pile foundations. The Plaxis software uses advanced material models as well as the modelling of the impact of groundwater or overconsolidation. The load-settlement curve calculated using Plaxis is equal to the results of a static load test with a more than 95 % degree of accuracy. In comparison, the load-settlement curve calculated using Ansys allows for the obtaining of only an approximate estimate, but the software allows for the common modelling of large structure systems together with a foundation system.

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