Structural Mechanics of Buried Pipes

Watkins, Reynold King; Anderson, Loren R.

doi:10.1201/9781420049572

Cited by 113 publications

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“…The particular case of the formulation of cylindrical 37 shells using ring elements has a straightforward contribution from Oñ ate (1992), where this author used a 38 combined formulation for the displacement field dealing with fourier series along the circumference and alge-39 braic shape functions along the axial direction. Analysis of a circular ring is reasonable for the structural 40 design of most buried pipes when they can withstand the three most basic loads: internal pressure, transpor-41 tation/installation and external pressure (Watkins and Anderson, 2000). The ring deflection is a potential per-42 formance limit for transportation/installation of pipes.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

“…2. This load appears when pipes are stacked or when soil 129 is compacted on the sides or on top of the pipe (Watkins and Anderson, 2000). If yield strength of the pipe 130 material is exceeded due the F-load, either the pipe wall will crack or the cross section of the pipe will perma-131 nently deform.…”

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confidence: 99%

“…(15). For the design process of the pipe transportation/installation loads, the maximum allow-135 able F-load for plain pipes is calculated by the expression 16 (Watkins and Anderson, 2000). …”

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confidence: 99%

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Trigonometric function used to formulate a multi-nodal finite tubular element

Fonseca

Melo

Oliveira

2007

Mechanics Research Communications

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11It is presented an alternative formulation to solve the problem of the deformation analysis for tubular element under 12 pinching loads. The solution is based on a new displacement field defined from a total set of trigonometric functions. The 13 solution is developed in a multi-nodal finite tubular ring element with a total of eight degrees of freedom per section con-14 sidered. The purpose of this paper is to provide an easy alternative formulation when compared with a complex finite shell 15 element or beam element analysis for the same application. Several case studies presented have been compared and dis-16 cussed with numerical analyses results reported by other authors and the results obtained with a shell element from a Cos-17 mos/M Ò programme. 18

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Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

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Trigonometric function used to formulate a multi-nodal finite tubular element

Fonseca

Melo

Oliveira

2007

Mechanics Research Communications

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“…The study of pipe stress can be traced back to 1930s, when method of structural mechanics was used (Watkins & Anderson, 1999). With decades of development, elastic center method (Sokolnikoff & Specht, 1956;Yu & Lv, 2008), methods of statically indeterminate structure as well as matrix method of structural analysis were studied (Zhang, 1993;Peng, 1978).…”

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confidence: 99%

Stress and displacement analysis of aerial oil & gas pipelines: A case study of Lantsang tunnel crossing project

Lü¹,

Huang²,

Wu³

et al. 2015

J Engin Res

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“…Tests to failure of corrugated steel culverts show that static loads over the crown can be many times greater than the load on one side (Watkins and Anderson, 1999). In order to find the critical pressure near the crown, some researchers (Timoshenko and Gere, 1961; Moore, 1989) investigated when and where the buckling happens.…”

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A Proposed Minimum Cover for Corrugated Metal Pipe-Arch Culverts

Yeau¹

2010

Journal of The Korean Society of Agricultural Engineers

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The first corrugated metal culvert passed through the Joongang expressway was constructed in 1990s as an agricultural underpass, which uses a passage for agricultural equipments. After the passage, many flexible corrugated metal culverts with spans larger than 3 m have been used as agricultural drainage structures and underpasses for many years in Korea and the usage of these structures is gradually increased due to construction of expressways and local ways passed over wide plains and agricultural farmlands. According to the Korea Expressway Corporation (KEC) inventory, about 10% (about 100 culverts) of existing culverts crossing over expressways are used as agricultural underpasses and drainage structures. Most culverts used for agricultural drainages and underpasses are pipes, pipe- One of the failure criteria is the soil failure due to the induced shear and dilation in the soil. Although the provisions for the minimum cover design are determined to avoid the problems associated with soil failure, these requirements are originally empirical (Hafaz and AbdelSayed, 1983). Many researchers (Kim et al., 2009, AbdelSayed andSalib, 2002; Hafez, 1981) have tried to find the minimum cover depth based on the finite element programs like CANDE and ABAQUS. However, the existing literature, to our knowledge, contains little information on the minimum cover depth based on the analytical approaches. Culverts have different soil cover depths over the culvert crown and are subjected to different loading conditions. Pressure due to the load application on road decreases as the soil cover depth increases. However, if the cover depth is very shallower and not enough to support the external design load, it might cause the soil and culvert failure. Currently, requirements to determine the minimum

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Structural Mechanics of Buried Pipes

Cited by 113 publications

References 0 publications

Trigonometric function used to formulate a multi-nodal finite tubular element

Trigonometric function used to formulate a multi-nodal finite tubular element

Stress and displacement analysis of aerial oil & gas pipelines: A case study of Lantsang tunnel crossing project

A Proposed Minimum Cover for Corrugated Metal Pipe-Arch Culverts

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