investigating the parameters influencing the behavior of buried pipelines under dynamic loading is of great importance. in this study the soil structure interaction of the pipelines with the surrounding soil was addressed using shaking table tests. wave propagation along the soil layers was also included in the study. the semi infinite nature of the field was simulated using a laminar shear box...

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...

Polyvinyl chloride (PVC) pipes have been extensively applied in water supply network fields. Understanding the mechanical properties and burst pressure of PVC is necessary because a large number rupture due to excessive internal pressure. In this paper, practical approach based on average shear stress yield (ASSY) criterion was proposed assess pipe addition, uniaxial tensile tests were carried ...

Introduction Gwinnett County, in metropolitan Atlanta, Ga., is one of the most rapidly growing areas in the United States. Nonpoint-source pollution is highly complex because it arises from varied, but unknown sources especially in areas of urban growth. The U.S. Geological Survey (USGS), in cooperation with Gwinnett County, Department of Public Utilities, established a water-quality monitoring...

Objective: To determine the biomechanical effect of an intervertebral spacer on construct stiffness in a PVC model and cadaveric canine cervical vertebral columns stabilized with monocortical screws/polymethylmethacrylate (PMMA). Study Design: Biomechanical study. Sample population: PVC pipe; cadaveric canine vertebral columns Methods: PVC model – PVC pipe was used to create a gap model mimicki...

Trenchless rehabilitation lining can be divided into flexible solid wall structures, rigid structures and rigid–flexible composite structures. This paper reviews the research status of design theory trenchless pipes, analyzes points out that value factor determined from non-grouting angle K1 is not clear in formula structure mentioned ASTM ‘Standard Practice for Installation Machine Spiral Woun...

Plumbing system planning is an important part of a building to meet clean water needs. This study aims plan plumbing for in the ITP main building. Meeting needs planned use sources from shallow wells that are pumped into roof tank (roof tank) and flowed gravitationally pump two. The results calculation average requirements office buildings 53 liters / day. capacity needed accommodate 2,100 lite...