The Influence of Raft Foundation Temperature Stress Calculation by Radiation Condition

2014 ◽  
Vol 1021 ◽  
pp. 100-104
Author(s):  
Li Jun Zhao
Keyword(s):  
Temperature Stress ◽  
Radiation Condition ◽  
Influence Of Temperature ◽  
Stress Calculation ◽  
Concrete Crack ◽  
Raft Foundation ◽  
Calculational Method ◽  
Calculation Results

Raft foundation was researched in this paper,basing on the traditional “Wang Tiemeng Method”,the influence of temperature stress calculation by radiation condition was put forward emphatically. According to analysis the two calculation results, obtains the more precise temperature stress calculational method. Consequently the of concrete crack calculation and analysis result can be more precise and reliable.

Collapse Reasons Analysis of a Large Steel Silo

2011 ◽  
Vol 368-373 ◽  
pp. 647-650
Author(s):  
Yue Dong Sun ◽  
Yan Pu Wang
Keyword(s):  
Temperature Stress ◽  
Critical Stability ◽  
Initial Imperfections ◽  
Stress Calculation ◽  
Large Steel ◽  
Pressure Calculation ◽  
Horizontal Pressure ◽  
Steel Silos ◽  
Design Factors ◽  
Discharge Method

Through the analysis of the collapse reasons of a large steel silo, results show that the main reasons for causing this accident are the design factors, containing horizontal pressure calculation, loads combination, critical stability stress calculation and so on. Temperature stress, storage mode and discharge method, initial imperfections of steel silos are the subordinate reasons and can not be ignored.

A Study on the Adaptability of Photoelastic Experiment on Main Tower of Cable-Stayed Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1344-1348
Author(s):  
Zhi Sheng Dong
Keyword(s):  
Finite Element ◽  
Experimental Model ◽  
Experimental Results ◽  
Finite Element Calculation ◽  
Element Calculation ◽  
Stress Calculation ◽  
Cable Stayed Bridge ◽  
Photoelastic Experiment ◽  
Calculation Results ◽  
Stress Experiment

We designed the experimental model of main tower of Tianjin Haihe bridge according to photoelastic experiment theory and proceeded stress experiment at the positions where the stress calculation is precise. Then we compared the experimental results with the finite element calculation results to verify whether the photoelastic experiment fits the stress calculation of main tower of cable-stayed bridge. The experimental results show that the photoelastic experiment could supply gist for the stress calculation of main tower of cable-stayed bridge, which is significant far and wide.

scholarly journals Effect of Reinforcement on Early-Age Concrete Temperature Stress: Preliminary Experimental Investigation and Analytical Simulation

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Jianda Xin ◽  
Siqing Lin ◽  
Nannan Shi ◽  
Jianshu Ouyang ◽  
Dahai Huang
Keyword(s):  
Reinforced Concrete ◽  
Temperature Stress ◽  
Testing Machine ◽  
Early Age ◽  
Principle Of Superposition ◽  
Stress Development ◽  
Concrete Crack ◽  
Analytical Simulation ◽  
Concrete Temperature ◽  
Early Age Concrete

For concrete under short-term loading, effect of reinforcement on concrete crack resistance capability is usually negligible; however, recent research results show that extension of this viewpoint to concrete under long-term loading (temperature variation) may be unsuitable. In order to investigate this phenomenon, this paper presents the experimental and analytical results of early-age reinforced concrete temperature stress development under uniaxial restraint. The experiments were carried out on a temperature stress testing machine (TSTM). Experimental results show that the coupling of reinforcement and concrete creep behavior influenced the concrete temperature stress development, and nearly 16% of concrete stress was reduced in the current research. Moreover, the cracking time of reinforced concrete was also delayed. Finally, based on the principle of superposition, analytical simulations of effect of reinforcement on concrete temperature stress have been performed.

Stress Calculation of Composite Pipe of Multihole Steel Pipe and PE-RT

2011 ◽  
Vol 204-210 ◽  
pp. 2027-2032
Author(s):  
Fei Wang ◽  
Ming Yan ◽  
Guo Wei Wang
Keyword(s):  
Strain Energy ◽  
Axial Stress ◽  
Steel Pipe ◽  
Burst Pressure ◽  
Stress Calculation ◽  
Composite Pipe ◽  
Calculation Results ◽  
Energy Theory

The purpose of this research is to solve stress calculation problem of the composite pipe of multihole steel pipe and polyethylene of raised temperature (PE-RT). The formulas, used to calculate the burst pressure of the composite pipe, were established separately based on three kinds of different strength theories, and also the formula, used to calculate axial stress was developed based on the deviator strain energy theory. The calculation results were compared with the measured values. It shows that the calculation results of formula based on the deviator strain energy theory are very close to the measured values. This conclusion has important meaning to the heating directly buried installation of the composite pipe.

The Study on the Control of the Early-Stage Crack of the Concrete Poured in Winter in Shenyang Subway

2013 ◽  
Vol 671-674 ◽  
pp. 1135-1139 ◽  
Author(s):  
Li Han ◽  
Wen Zhao ◽  
Yu Zhao
Keyword(s):  
Temperature Stress ◽  
Civil Engineering ◽  
Early Stage ◽  
Difficult Problem ◽  
Construction Quality ◽  
Concrete Crack ◽  
Combination Of Methods

The control of concrete crack is a complicated and difficult problem for civil engineering. It is more difficult to control the crack of the concrete poured in winter. Thorough the analysis of the construction of Shenyang subway in winter, a combination of methods are applied. Frost proof and decreasing the temperature stress of concrete are considered together. The combination of antifreezing measures and decreasing the temperature stress of concrete make the construction quality arrive a satisfying level.

Research on Temperature Stress of Large-Area Concrete Beam-Slab Structure

2010 ◽  
Vol 163-167 ◽  
pp. 1232-1235
Author(s):  
Yong Sheng Zhang ◽  
Yan Ying Li
Keyword(s):  
Concrete Beam ◽  
Shrinkage Strain ◽  
Test Results ◽  
Large Area ◽  
Influence Of Temperature ◽  
Shrinkage And Creep ◽  
Calculation Results ◽  
Practical Engineering ◽  
Cast Concrete ◽  
Temperature Strain

Large-Area Concrete beam-slab Structure mainly means the monolithically cast concrete structure whose length and width are more than the maximum of the structure in the code. The influence of temperature change, shrinkage and creep on structure is the key to solving the problem. Through a practical engineering, Shrinkage and creep formulas accord with test results are brought forward. The calculation results of shrinkage strain, temperature strain and prestressed strain coincide test results and can be directed to the projects.

INFLUENCE OF TEMPERATURE ON THE STRAIN OF FUSARIUM GRAMINEARUM SCHWABE IN ZEARALENONE PRODUCTION

1978 ◽  
Vol 58 (4) ◽  
pp. 1095-1097 ◽  
Author(s):  
D. M. NAIK ◽  
L. V. BUSCH ◽  
G. L. BARRON
Keyword(s):  
Temperature Stress ◽  
Fusarium Graminearum ◽  
Incubation Temperature ◽  
Toxin Production ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

Five strains of Fusarium graminearum isolated from maize in Ontario were evaluated for zearalenone production relative to incubation temperature. All strains produced significant amounts of zearalenone at 25 °C. Toxin production was enhanced by temperature stress (reducing the incubation temperature to 10 °C following a period of growth at 25 °C) in only one of the strains tested.

Influence of Temperature Stress on Lipid Stability of Atlantic Herring (Clupea harengus) Muscle During Frozen Storage

2017 ◽  
Vol 94 (12) ◽  
pp. 1439-1449 ◽  
Author(s):  
Huong Thi Thu Dang ◽  
María Gudjónsdóttir ◽  
Magnea G. Karlsdóttir ◽  
Minh Van Nguyen ◽  
Paulina E. Romotowska ◽  
...  
Keyword(s):  
Temperature Stress ◽  
Frozen Storage ◽  
Clupea Harengus ◽  
Atlantic Herring ◽  
Influence Of Temperature ◽  
Lipid Stability
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