Mechanics Analysis and Construction Method of Prestressed Concrete Pipe

Simulation analysis on prestressed concrete pipe was carried out by using finite element software ANSYS. The internal and external pressure which the pipeline is subject to is simulated in real work process, and deformation and stress distribution of building pipeline structure are got. We have great understanding in the mechanical properties, at the same time give a detailed introduction for the prefabrication and on-site construction process. Three aspects in this paper for analysis, design and construction can provide safe and reliable reference for design and construction of similar pipeline structure.

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Research on Monitoring Technology of Long-Span Prestressed Concrete Construction

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.170-173.3145 ◽

2012 ◽

Vol 170-173 ◽

pp. 3145-3152

Author(s):

Ji Liang Liu ◽

Ming Jin Chu ◽

Shu Dong Xu ◽

Ying Ying Yin

Keyword(s):

Finite Element ◽

Prestressed Concrete ◽

Concrete Beam ◽

Simulation Analysis ◽

Reference Value ◽

Element Model ◽

Construction Process ◽

Finite Element Software ◽

Prestressed Concrete Beam ◽

Comprehensive Service

The author performs simulation analysis on construction process of roofing prestressed concrete beam of comprehensive service center in Beijing Institute of Civil Engineering and Architecture by finite element software Midas/Gen, so as to determine the monitoring programme according to the analysis results. The monitoring results indicate that the structure is safe; the theoretical value of simulation analysis is well matched with actual monitoring value, which means that the finite element model of construction process of roofing prestressed concrete beam is correct, the simulation method is feasible and the construction process is reasonable. It has important reference value for construction and monitoring of subsequent similar projects.

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The new bud light steel system and the geometric shape evolution of light steel framework for COVID-19 patients appointed hospital (Huoshenshan hospital)

Journal of Intelligent & Fuzzy Systems ◽

10.3233/jifs-189300 ◽

2020 ◽

Vol 39 (6) ◽

pp. 9015-9026

Author(s):

Lilin Wang

Keyword(s):

Simulation Analysis ◽

Steel Structure ◽

Model Material ◽

Construction Process ◽

Actual Measurement ◽

Finite Element Software ◽

Whole Process ◽

Long Time ◽

The Common ◽

Actual Size

The light steel structure is always the common material of the movable plank house, and the new bud light steel system is the light steel system used for a long time after the earthquake. This paper discusses the mechanical system of the light steel structure of Huoshenshan hospital, which was built in ten days. In the process of building, the geometric form of roof stress has changed. In the actual structural design, the designer seldom takes the calculation of construction load into account, which is quite different from the actual construction process. So it is very important to simulate and monitor the whole process of structure installation. In this paper, the finite element software MIDAS / Gen is used for simulation analysis to ensure that the simulation analysis results are consistent with the construction process, the model material and the actual size are completely consistent, and the stress simulated by the software can meet the needs of the actual stress through the actual measurement.

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Research on the key technology of TIED-arch bridge Incremental Launching Method Construction

Stavební obzor - Civil Engineering Journal ◽

10.14311/cej.2021.02.0032 ◽

2021 ◽

Vol 30 (2) ◽

Author(s):

Kexin Zhang

Keyword(s):

Finite Element ◽

Simulation Analysis ◽

Utilization Rate ◽

Construction Process ◽

Arch Bridge ◽

Finite Element Software ◽

Element Simulation ◽

Material Utilization ◽

Supporting Force ◽

Tied Arch Bridge

Steel tied arch bridge has been widely used in modern bridge construction due to its beautiful shape, high material utilization rate and overall structural stiffness. However, there are few cases in which the tied-arch bridge is constructed by incremental launching . Based on the steel tied arch bridge project, this paper uses finite element software to establish the finite element simulation analysis of the construction process, and monitors the construction process of the bridge. The test results show that it is in the most unfavorable state when the cantilever at the end of the bridge reaches the maximum. At this time, the stress at the 117 m position of the beam reaches the maximum, the stress at the top edge is 33.7 MPa, and the stress at the bottom edge is -58.2 MPa. The stress in other sections did not exceed 30 MPa, and the beam was under uniform stress. When the foot of the internal arch passes through the temporary pier, the supporting force of the pier is maximum, which is about 6000 kN. The reasonable range of α is between 0.55 and 0.65, which is the ratio between the length Ln of launching nose and the maximum span L of incremental launching .

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The Nonlinear Finite Element Analysis of Prestressed Concrete Box Girder

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.361-363.1384 ◽

2013 ◽

Vol 361-363 ◽

pp. 1384-1388

Author(s):

Meng Chan Zhou ◽

Qun Yang Liu ◽

Jun Su

Keyword(s):

Finite Element ◽

Prestressed Concrete ◽

Maximum Stress ◽

Nonlinear Finite Element ◽

Structure Model ◽

Construction Process ◽

Element Analysis ◽

Box Girder ◽

Finite Element Software ◽

Control Section

Using Midas/Civil, a nonlinear finite element software, to establish solid element, analyse the process of the construction of a prestressed concrete simply supported box girder which length 32m, this box girder is located on the Shijiazhuang-Wuhan Passenger Dedicated Line, gained the maximum stress and displacement at the control section. Comparative analysis of the simulation results with the monitoring data which gained at the construction site, The results of both are substantially the same, achieve the purpose of assessing the safety of the construction process and the reasonableness of the structure model about the box girder.

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Numerical Simulation Analysis on Vertical Displacement of Step Excavation in Foundation Pit Project

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.651-653.1201 ◽

2014 ◽

Vol 651-653 ◽

pp. 1201-1204

Author(s):

Fang Guo

Keyword(s):

Numerical Simulation ◽

Finite Element ◽

Simulation Analysis ◽

Vertical Displacement ◽

Construction Process ◽

Foundation Pit ◽

Maximum Settlement ◽

Displacement Distribution ◽

Finite Element Software ◽

Pit Depth

In order to study the vertical displacement distribution of foundation pit in the process of step-by-step excavation, combined with a foundation pit project, numerical simulation analysis with finite element software was carried in the research. The results show that: in the process of excavation, the maximum settlement of soil outside the pit is 41.4 mm, which is 2.95 ‰ of pit excavation depth and conforms to the recommended value in specifications. The maximum vertical displacement of soil at the bottom of foundation pit is in the center of pit. Its value is gradually increasing with the excavation, and the maximum is 60.1 mm, which is 4.32 ‰ of foundation pit depth,also,it conforms to the specifications proposed value. The proposed scheme can satisfy the vertical displacement of foundation pit excavation in the construction process.

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Research on Construction Control of Long-Span Prestressed Concrete Continuous Girder Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1030-1032.843 ◽

2014 ◽

Vol 1030-1032 ◽

pp. 843-846 ◽

Cited By ~ 1

Author(s):

He An Wan

Keyword(s):

Prestressed Concrete ◽

Simulation Analysis ◽

Effective Control ◽

Highway Bridge ◽

Construction Control ◽

Construction Process ◽

Long Span ◽

Computational State ◽

Continuous Girder Bridge ◽

Girder Bridge

On the background of 318 highway bridge of the Yinjiang Jihan Navigation Project, it introduces the methods and contents of the construction control of long-span prestressed concrete continuous girder bridge, it adopts Midas/Civil softwares to have a simulation analysis and effective control for the construction process of whole bridge. The result indicates that safety of the bridge construction, linear and the variation of prestress are all in control. Finally, the condition of structure of bridge suits for computational state theoretically.

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DISCUSSION. FAILURE OF PRESTRESSED CONCRETE PIPE AT REGINA, SASKATCHEWAN.

Proceedings of the Institution of Civil Engineers ◽

10.1680/iicep.1963.10668 ◽

1963 ◽

Vol 25 (2) ◽

pp. 201-206

Author(s):

R F LEGGET ◽

J FELD ◽

N STUTTERHEIM ◽

S MCCONNEL ◽

C E BIRD

Keyword(s):

Prestressed Concrete ◽

Concrete Pipe

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Numerical Simulation on Heat Dissipating Performance of New Pipe with Grid Plate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.532-533.417 ◽

2012 ◽

Vol 532-533 ◽

pp. 417-421

Author(s):

Chang Li Song ◽

Jing Ji

Keyword(s):

Heat Transfer ◽

Simulation Analysis ◽

Heat Transfer Analysis ◽

Finite Element Software ◽

Grid Plate ◽

Steady State Heat ◽

Steady State Heat Transfer ◽

Energy Conservation Law ◽

Optimal Diameter ◽

Selection Of

In order to improve the pipe dissipating area, a kind of new pipe with grid plate is proposed in this paper. Based on the basic principle of heat transfer and energy conservation law, by finite element software ANSYS the simulation analysis of the steady-state heat transfer of the new pipeline is carried out, process of ANSYS modeling, loading and solving is introduced in detail, the distribution of temperature and stress for pipe with a grid plate is given, these can provide the foundation for the selection of the optimal diameter of the grid plate and transient heat transfer analysis of pipe.

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