Hydraulic Engineering V

Proceedings of the 5th International Technical Conference on Hydraulic Engineering (CHE V), December 15-17, 2017, Shanghai, PR China

Guojun Hong, Gongxun Liu, Liquan Xie

• Publisher: CRC Press
• Year: 2017
• ISBN:
  9781351241557
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

Hydraulic research is developing beyond traditional civil engineering to satisfy increasing demands in natural hazards, structural safety assessment and environmental research. Hydraulic Engineering V contains 40 technical papers from the 5th International Technical Conference on Hydraulic Engineering (CHE 2017), held in Shanghai (China) 15—17 December 2017. The conference served as a major forum to promote technological progress and activities, technical transfer and cooperation, and opportunities for engineers and researchers to maintain and improve scientific and technical competence in the field of hydraulic engineering, environment and safety engineering, and other related fields.

The selected papers mainly focus on theory and technologies related to hydraulic engineering, ecological structures in hydraulic engineering, stability and risk of hydraulic structures, estuary improvement and shoreline restoration, river engineering and sediment transport, dredging technology and equipment, flood hazards and innovative control measures, complex flow modelling, environmental hydraulics and hydrology, water purification, wastewater treatment, and geotechnical aspects in hydraulic engineering.

Hydraulic Engineering V will be of interest to academics and engineers involved in Hydraulic Engineering and Environmental Engineering.

Temperature stress analysis for a bimodulus beam placed on a double-parameter foundation

W.J. Yao & Y. Yang

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, China Department of Civil Engineering, Shanghai University, China

ABSTRACT: In this study, the mechanical response of a double-parameter foundation with different moduli under the temperature effect was investigated. In addition, the position of the neutral axis and strain differential equations were established. Then, an expression for the stress, deflection, and bending moment of the beam placed on the foundation was derived. On the basis of the calculation results from different-modulus theories, we compare the diversity with the classical modulus solution. For the concrete material widely used in road and bridge engineering, it is worth mentioning that relative to the classical same-modulus theory, the maximum inaccuracy of tension stress increased by 26%. However, cracks and damage on the pavement are common in practical engineering, which may be due to the neglecting of the bimodulus characteristic of the foundation beam. Therefore, we propose several reasonable optimal design suggestions for practical engineering.

1 INTRODUCTION

According to classical mechanics engineering materials have the same elastic moduli in tension and compression. However, a myriad of experimental tests show that there are also materials such as concrete, metal alloy, biological materials (Barak M.M. et al. 2009), rubber, rock, and nuclear graphite with different tensile elastic and compressive elastic moduli (G. Tsoukleri et al. 2009), which are identified as bimodulus materials. Furthermore, this kind of materials contributes significantly to the mechanical performance of the structure. However, the difference...

Table of contents

• Cover
• Half Title
• Title Page
• Copyright Page
• Table of Contents
• Preface
• Committees
• Analyzing the influence of parameter value uncertainties on the reliability of the retaining wall
• A method for calculating the trajectory and extension of bow-spray for the TSHD
• Temperature stress analysis for a bimodulus beam placed on a double-parameter foundation
• Research on the law for developing cutting resistance of rake tooth during the dredging of the saturated dense silt soil
• A computational model for devising an intelligent densitometer for cutter suction dredgers
• Risk analysis of rainfall and tidal levels using maximum entropy: The secondary return period method
• Adapting the Afsluitdijk to climate changes
• Adjustment of a tridimensional network structure of ecological revetment to the local flow pattern
• Experimental study on the application of EIT to the measurement of concentration distribution in the dredge pipeline
• The flow characteristics around a hydrofoil and the stall mechanism influenced by the electromagnetic force
• ADAMS-MATLAB co-simulation of trailing suction hopper dredger under wave action
• A method of measuring the critical jet pressure of clay cutting by a moving jet
• Experimental and numerical investigations on the ultra-high pressure jet of a TSHD
• Numerical simulation of the protection engineering effect in a new development district of Hangzhou Bay in Ningbo
• Adjustment of the flexible mattress with ecological cavities to near-bottom flow patterns
• Comparison and analysis of different critical velocity models about the pipeline transport for the medium and coarse sand
• Coastal responses and shoreline restoration after Holocene sea-level changes in Hong Kong, China
• Application of the Coupled Eulerian–Lagrangian (CEL) method to the modeling of rock-breaking by a high-pressure waterjet
• Evaluating the effect of sulfate, alkalinity, and chloramine on iron release from iron pipes and the characteristics of iron corrosion using the response surface methodology
• Application of the DNDC model in simulating nitrate leaching due to irrigation and precipitation
• A spur-dike wetland hydrodynamic experiment with sediment discharge
• Physicochemical properties and carbon cycle of soil on the intertidal mud flat to the north of the Yangtze Estuary
• Experimental study into the blocking effectiveness of silt curtain on suspended materials
• Numerical simulation of high-pressure submerged waterjet cutting hard clay using the SPH method
• Analysis of output and power for the dredger’s cutter head under different axis angle conditions using the distinct element method
• Study on prestressed grid anchorage technology for slope and landslide treatment
• Simulation and optimization of seepage control measures for gate dam
• Numerical simulation of the hydrodynamic response of regulation engineering in the Deepwater Navigation Channel of the Yangtze Estuary
• Research on a ship bulkhead structure under the combined load
• Experimental study on the hydrodynamic characteristics of a geomembrane-enveloped concrete structure of ecological revetment
• Numerical strategy for predicting erosion in a dredging pump impeller
• Numerical simulations of flow past a submerged vertical cylinder with porous structure
• Effects of land forming on hydrodynamics in the Yangtze Estuary
• Response of salinity intrusion to winds in the Yangtze Estuary
• Reliability analysis of a slope-type seawall armor structure
• Wave run-up influenced by the protective facings of the sloping breakwater
• Comparative experiment of the influence of PVD and EVD on vacuum preloading effects
• Study on the wind-induced vibration of steel bridge members in a mountainous city
• Research on the social impact assessment index system of dam failure risk
• Experimental measurement of diffusion coefficients under wave action by the tracer method
• Author index