Prediction method of bridge static load test results based on Kriging model

2020 ◽  
Vol 214 ◽  
pp. 110641 ◽  
Author(s):  
Pengzhen Lu ◽  
Zijie Xu ◽  
Yangrui Chen ◽  
Yutao Zhou
Keyword(s):  
Static Load ◽  
Prediction Method ◽  
Kriging Model ◽  
Load Test ◽  
Test Results ◽  
Static Load Test

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.

Study on the Deterioration Process of Cast-in-Place Hinged Joints in Hollow Slab Bridge under Deicing Salt Environment

2012 ◽  
Vol 517 ◽  
pp. 904-909
Author(s):  
Jun Wei ◽  
Pei Li ◽  
Xia Ban ◽  
Rong Zhen Dong
Keyword(s):  
Static Load ◽  
Steel Corrosion ◽  
Load Test ◽  
Chloride Salt ◽  
Test Results ◽  
Static Load Test ◽  
Destruction Process ◽  
Deicing Salt ◽  
Deterioration Process ◽  
Durability Performance

Fabricated hollow slab bridge is commonly used in China. It is indicated that the hinged joints between hollow slabs are easily damaged. Especially under the erosion of chloride salt, the destruction process of hinged joints will be greatly exacerbated. In this paper, deicing salt environment was simulated in the lab to corrode the commonly used hinged joints. According to static load test results, hollow slab coordinated working coefficient is explored and the regression calculation formula was established. Then, the time-varying function of the rate of hinged joint steel corrosion was introduced to the regression model. Finally, the constantly evaluating of the hinged joint durability performance of common used deep, middle and low hinged joint forms were also carried out.

Batter Pile Static Load Test and Analysis

2012 ◽  
Vol 256-259 ◽  
pp. 1139-1143
Author(s):  
Li Lan Zhang ◽  
Yao Dong Wu
Keyword(s):  
Stress State ◽  
Static Load ◽  
Resistance Coefficient ◽  
Load Test ◽  
Soil Resistance ◽  
Test Results ◽  
Static Load Test ◽  
Foundation Soil ◽  
Load Analysis ◽  
Actual Stress

This paper through the test results and theoretical calculation of the batter pile static load, analysis of the actual stress state of cables, and according to the test results to determine the level of the foundation soil resistance coefficient ratio and allow level a transplant.

scholarly journals Analysis of the pile skin resistance formation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Paweł Siemaszko ◽  
Zygmunt Meyer
Keyword(s):  
Static Load ◽  
Skin Resistance ◽  
Interaction Mechanism ◽  
Load Test ◽  
Engineering Practice ◽  
Test Results ◽  
Detailed Data ◽  
Static Load Test ◽  
Practical Engineering ◽  
Pile Interaction

Abstract This paper introduces a method based on a static load test which is aimed to verify the mechanism of the piles soil–skin interaction. The authors base their analysis on detailed data from static load test with extensometers on CFA piles. The main goal of the research is to determine the proper method of examining how the skin of the pile and soil interacts and apply it to practical engineering practice. As the first stage of the research is limited to the available set of piles, the authors make assumptions that will be verified on later stages of research as more data become available. The authors attempt to formulate the boundary conditions for the formation of pile skin resistance formation using mathematical physics equations to describe the phenomena. Current research proves that it is possible, with the suitable for practical engineering calculations, to describe soil–pile interaction mechanism based on static load test results. Experimental research indicated that there is possibility, for practical engineering calculations purposes, to assume that skin resistance of the pile due to depth can be presented with linear graph. The description is made upon extensometer results, but is meant to be appropriate with the standard static load test results, which provide load–settlement curve of the pile.

Study on Failure Mechanism of Steel Wire Wound Reinforced High-Pressure Hose

2012 ◽  
Vol 602-604 ◽  
pp. 2219-2222 ◽  
Author(s):  
Fan Gu ◽  
Jia Quan Sun ◽  
Dan Wang
Keyword(s):  
High Pressure ◽  
Internal Pressure ◽  
Failure Criterion ◽  
Static Load ◽  
Steel Wire ◽  
Load Test ◽  
Transverse Load ◽  
Test Results ◽  
Static Load Test ◽  
Steel Sleeve

For steel wire wound reinforced high-pressure hose, the static load test under internal pressure and fatigue test under combined effect of internal pressure and periodic transverse load were carried out. Test results show that water seepage or leakage on the pressing steel sleeve or on hose body itself, and bulging on hose itself near steel joint would lead to performance failure, which can be regarded as the performance failure criterion for steel wire wound reinforced high-pressure hose.

Shear analysis and static load test of single-box and multicell composite girders with corrugated steel webs: a case study

2020 ◽  
Vol 47 (5) ◽  
pp. 556-566
Author(s):  
Jie Li ◽  
Guopeng Du ◽  
Guanjie Feng ◽  
Yuanlin Feng ◽  
Xin Yan ◽  
...  
Keyword(s):  
Structural Reliability ◽  
Static Load ◽  
Close Relation ◽  
Load Test ◽  
Test Results ◽  
Static Load Test ◽  
Shear Design ◽  
Concrete Plates ◽  
Corrugated Steel Web

The shear design of a corrugated steel web box girder is important for structural reliability. Presently, corrugated steel webs bear all the shear forces, and the top and bottom concrete plates bear no shear force. Each steel web has equal force. This design is conservative and uneconomical and may sometimes be unsafe. The shear ratio and transfer efficiency of each corrugated steel web are investigated in this study through numerical analysis. Then, the distribution of shear stress in corrugated steel webs is verified through a static load test. Results show that the shear is shared by the top and bottom concrete plates and corrugated steel webs. The shear ratio presents a close relation with boundary, loading, and section position. The influence of a transverse diaphragm on the shear ratio is minimal, and this influence demonstrates a certain effect only on the steel webs located at the area of the transverse diaphragm.

Study on Analysis and Application of Horizontal Static Load Test Results for Elastic Long Pile

2014 ◽  
Vol 884-885 ◽  
pp. 698-701
Author(s):  
Yan Zheng Huang ◽  
Shao Bo Zhang ◽  
Wen Yang
Keyword(s):  
Bearing Capacity ◽  
Static Load ◽  
Bending Moment ◽  
Resistance Coefficient ◽  
Load Test ◽  
Work Status ◽  
Test Results ◽  
Horizontal Resistance ◽  
Static Load Test ◽  
Winkler Model

Based on Winkler model and engineering example, the behavior of elastic long pile under horizontal load was analyzed in test status while pile top at free. The analysis results show that under same horizontal static load, the maximum of pile shaft bending moment in work status is higher than it in test status. Directly using the horizontal bearing capacity obtained by horizontal static load test in project design is unsafe and inapposite. The horizontal bearing capacity of pile in work status can be get based on the proportion coefficient of the horizontal resistance coefficient.

Field static load tests on drilled shaft founded on or socketed into rock

2000 ◽  
Vol 37 (6) ◽  
pp. 1283-1294 ◽  
Author(s):  
Caizhao Zhan ◽  
Jian-Hua Yin
Keyword(s):  
Bearing Capacity ◽  
Static Load ◽  
Large Diameter ◽  
Load Test ◽  
Drilled Shaft ◽  
Test Results ◽  
Static Load Test ◽  
End Bearing Capacity ◽  
Side Resistance ◽  
Load Tests

The Mass Transit Railway Corporation proposes to construct the Tseung Kwan O Depot (TKD) within Area 86 reclamation at Tseung Kwan O as part of the Tseung Kwan O Extension. The proposed foundation for the TKD comprises about 1000 large-diameter, bored, cast in situ, drilled shafts founded on or socketed into rock. To confirm the design allowable end bearing capacity and rock socket side resistance for the drilled shaft foundations, two test piles were constructed and tested. Both test piles were instrumented with strain gauges and rod extensometers. This paper presents the static compressive load test results on both test piles. The test results indicate that an end bearing capacity of 20.8 MPa (design allowable 7.5 MPa) and rock socket side resistance 2.63 MPa (design allowable 0.75 MPa) are achieved during the pile load tests with no sign of failure.Key words: drilled shaft, static load test, end bearing capacity, rock socket, rock socket side resistance, load transfer.

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