The Lasting Calculation Optimization for Wood Poles in Power Lines Designing

Z. Miklašēvičs

Abstract


Power lines in company „Latvenergo” are designed by program STAAD-111. Information involved in program contains data about the length of wood poles, wood poles strength rate, space between wood poles, the region of wind where the designed power line is intended to be exploited, the division of wood poles in the investigation stages where the data about strength parametrs are needed, the type of wires, the wood pole density, the wood pole module of flexibility . Following parameters are calculated: the support connection reactions, shear resistance, twist moment, bending tension and combined tension. After the analyses of results the assumptive load is applied on wood poles in three- dimension plane is determined. For power lines design optimization there are offered: ? the calculation data based on experimentally obtained wood strength parametrs; ? the statistical appreciation and strength parameters estimation model which is based on technological process distribution into control points; ? the calculation algorithm for the project programm STAAD-111 based on experimentally obtained wood strength parametrs.

Keywords


wood poles; strength parameters; designing

Full Text:

PDF

References


Āboliņs I. Priedes koksnes stiprība šķiedru virzienā atkarībā no vēlīnās koksnes procenta, gadskārtu skaita uz 1 cm un blīvuma: bakalaura darbs / LLU. Meža fakultāte- Jelgava LLU, 1997.-50. lpp.

Miklaševičs Z. Stabu koksnes piespiedu žāvēšanas nepieciešamības pamatojums attiecībā pret dabisko žāvēšanu.//Tradicionālais un novatoriskais sabiedrības ilgtspējīgā attīstībā. Vide un sabiedrība: starptautiska zinātniska konference: raksti, 2002.g. 28. febr.-2.marts, Rezekne.- 74.-82. lpp.

BS 1990:1984

ANSI/ASTM D 1036 – 58

STAAD-111”, Research Engineer (Europe) Ltd . Draycott House, Almondsbury Business Centre, Bristol BS32 4QH, England.

Arhipova I; Bāliņa S. Statistika ar Excel ikvienam. Datorzinību Centrs 2000.g.-128.lpp




DOI: http://dx.doi.org/10.17770/etr2003vol1.2004

Refbacks

  • There are currently no refbacks.