نتایج جستجو برای: welded steel pipes

تعداد نتایج: 93003  

2006
P. K. Ghosh

The development of several grades of high-performance steel (HPS) with yield strengths of the order of 480 to 690 MPa (even more) with improved weldability, toughness and corrosion resistance have changed the scenario of fabrication of welded steel bridges for highway and rail bridge constructions. The HPS possesses the optimum combination of properties required to build cost-effective structur...

2007
Tao Li

High-temperature pressure pipelines are extensively used in petrochemical plant and power stations. Severe pits or wall loss defects can be internally produced after a certain period of time due to media corrosion and cavitation erosion. These defects finally lead to leakage of the pipes. In order to search for a good non-destructive method for these defects, a large pipe testing installation w...

2005
L. R. O. de Lima P. C. G. da S. Vellasco S. A. L. de Andrade S. da Silva M. M. B. R. Vellasco

This paper proposes the use of artificial neural networks to predict the flexural resistance and initial stiffness of beam-to-column steel joints using the back propagation supervised learning algorithm. Three types of steel beam-to-column joints were investigated: welded, endplate and bolted with top, seat and double web angles, respectively. The neural networks results proved to be consistent...

2014

I. Sărăcin University of Craiova, Faculty of Agriculture, Romania. G. Paraschiv, Polytechnic University of Bucharest, Romania. O. Pandia, I Bozgă, D. Toma University of Agricultural Sciences and Veterinary Medicine Bucharest, Romania Welded construction equipments for agriculture are strongly stressed in terms of mechanics, but also in terms of environmental action and thus in many cases appear...

Recently, steel structures have been accounted for a large percentage of the buildings due to their advantages such as higher execution speed and easier construction. In steel structures, welded joints are commonly used and their quality plays a key role in stability of buildings under applied loads. Hence, to increase resiliency of welded steel structures against natural hazards, welded joints...

Journal: :Frontiers in Earth Science 2022

Steel-tube grouting technology has been widely applied in the slope control engineering. While anti-sliding performances of different connection modes grouted steel tubes still needs further investigation. In this paper, a large-scale model test was used to study influence three types pile connections, namely whole without connection, with reinforcement welded and casing on performance multi-st...

Journal: :international journal of civil engineering 0
a.r. rahai m.m. alinia s.m.f salehi

concentric bracing is one of the most common lateral load resistant systems in building frames, and areapplied to many structures due to their manufacturing simplicity and economics. an important deficiency in thebracing members is their irregular hysteretic loops under cyclic loading. in order to overcome this problem, it isadvised to restrain braces against buckling under compression, since b...

2015
V. MARUŠIĆ I. SAMARDŽIĆ

V. Marušić, I. Samardžić, I. Opačak. Faculty of Mechanical Engineering in Slavonski Brod University of Osijek, Croatia. The research investigated properties of aluminum bronze welded to structural steel St 52-3 N. Surface material CuAl-A3 was welded in one and two layers. There were dimension, metallographic examination of structures and hardness measured before and after heat treatment and aft...

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