scholarly journals EVALUATION OF BOND SPLITTING STRENGTH OF LAP SPLICES FOR LARGE DIAMETER HIGH-STRENGTH BARS IN WALLS

1994 ◽  
Vol 59 (456) ◽  
pp. 51-58 ◽  
Author(s):  
Junichi KADORIKU
Keyword(s):  
Large Diameter ◽  
High Strength ◽  
Lap Splices ◽  
Splitting Strength ◽  
Bond Splitting

scholarly journals A STUDY ON THE BOND SPLITTING STRENGTH OF ALL LAPPED SPLICES AT THE SAME SECTION WITH LARGE-DIAMETER BARS

1995 ◽  
Vol 60 (478) ◽  
pp. 153-162 ◽  
Author(s):  
Tomoyuki SAKURADA ◽  
Noritaka MOROHASHI ◽  
Hiroshi NISHIHARA ◽  
Taku TABATA ◽  
Reiji TANAKA
Keyword(s):  
Large Diameter ◽  
Splitting Strength ◽  
Bond Splitting

The Design, Development and Validation of an Innovative High Strength, Self Monitoring, Composite Pipe Liner for the Restoration of Energy Transmission Pipelines

2006 ◽  
Author(s):  
Kyle Bethel ◽  
Steven C. Catha ◽  
Melvin F. Kanninen ◽  
Randall B. Stonesifer ◽  
Ken Charbonneau ◽  
...  
Keyword(s):  
High Pressures ◽  
Large Diameter ◽  
Cylindrical Tube ◽  
High Strength ◽  
Design Development ◽  
Energy Transmission ◽  
Engineering Research ◽  
Wide Range ◽  
Transmission Pipelines

The research described in this paper centers on a composite of thermoplastic materials that can be inserted in a degraded steel pipe to completely restore its strength. Through the use of fabrics consisting of ultra high strength fibers that are co-helically wrapped over a thin walled thermoplastic cylindrical tube that serves as a core, arbitrarily high pressures can be achieved. This paper first outlines the design, manufacturing and installation procedures developed for this unique material to provide a context for the engineering research. Based on this outline, the technological basis that has been developed for assuring the strength and long term durability of this concept during its insertion, and in its very long term service as a liner in energy transmission pipelines, is presented in detail. The research that is described includes burst testing of the material in stand alone pipe form, load/elongation testing of ultra high strength fabrics, and linear and nonlinear elastic and viscoelastic analysis models. This body of work indicates that the concept is fundamentally feasible for restoring a wide range of large diameter natural gas and liquid transmission pipelines to be able to carry arbitrarily high pressures over very long lifetimes. It also indicates that liners can be safely installed in long lengths even in lines with severe bends in a continuous manner. With further research the concept has the potential for eliminating hydro testing and smart pigging during service, and could possibly be installed in some lines that are currently unpiggable.

Environmental effects on large diameter high-strength rods for structural applications

2018 ◽  
Vol 83 ◽  
pp. 230-238 ◽  
Author(s):  
Mihaela Iordachescu ◽  
Mariángel Pérez-Guerrero ◽  
Andrés Valiente ◽  
Manuel Elices
Keyword(s):  
Environmental Effects ◽  
Large Diameter ◽  
High Strength ◽  
Structural Applications

scholarly journals Analysis of Ultimate Load-Carrying Capacity of Combined Connection with Bolts and Welds

Mechanika ◽  
2019 ◽  
Vol 25 (6) ◽  
pp. 426-433 ◽  
Author(s):  
Tao LAN
Keyword(s):  
Ultimate Load ◽  
High Strength ◽  
Shear Plane ◽  
Deformation Capacity ◽  
Load Carrying Capacity ◽  
Element Calculation ◽  
Lap Splices ◽  
Load Carrying ◽  
Ultimate Load Carrying Capacity ◽  
Longitudinal Welds

In this paper, load-carrying and deformation capacity of tension lap splices that have both welds and bolts acting in the same shear plane are studied using numerical method. The failure criterion of bolts and welds are given based on the finite element calculation and compared with existing experiment results, it shows that the established numerical model is correct and reliable. The strength of longitudinal welds and the bearing capacity of the high-strength bolts before slipping can be fully used in the combined joints, the bolts and welds fail almost simultaneously. The deformation of welds in combined connections is less uniform than its’ deformation in welded joints as the welds fails, and it causes the deformation of welds as failure is larger in combined connections than in welded connections. The deformation capacity of the combined joint are slightly increased contrasted with bolts joint and welds joint because of the interplay of bolts and welds acting in the same shear plane. The strengths of welds and bolts performed in combined connections can reach 0.95 and the deformation of combined connection is increased at least 1.10 times as the welds connection or the bolts connection.

scholarly journals STUDY ON THE BOND SPLITTING STRENGTH OF SHEATHS FOR A PRECAST CONCRETE SYSTEM

1995 ◽  
Vol 60 (473) ◽  
pp. 137-148
Author(s):  
Rodolfo YANEZ ◽  
Juan Jose CASTRO ◽  
Teruaki YAMAGUCHI ◽  
Hiroshi IMAI
Keyword(s):  
Precast Concrete ◽  
Concrete System ◽  
Splitting Strength ◽  
Bond Splitting
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