Abstract

Prefabricated concrete piles have been used for the foundation of bigger buildings for about a century. Often a change in function, an addition (also vertically) or another type of alteration is required, resulting in different loads on the foundation. There are several complicating factors that return regularly in these assessments. The first one is a lack of data. Often drawings are missing or incomplete, e.g. showing only pile head dimensions or maximum calculated load but not the pile length, pile tip shape or material properties. Inspection is hard and only possible for the part directly under the pile head. And a third complication is that in The Netherlands there have only been official codes for piles since 1992. Various calculation and design methods from WWII until 1985 are discussed to see if there is any consistency that might lead to an indication of the load bearing capacity of piles in The Netherlands from that era. It is concluded that design rules for the load bearing capacity of concrete pile foundations in The Netherlands have been inconsistent over time. If the original detailed geotechnical calculations and/or structural drawings cannot be found in archives then the given ultimate loads cannot only not be exceeded; even if the load on a pile is currently less than stated on the technical specifications designers are advised not to increase the load.

Full document

The PDF file did not load properly or your web browser does not support viewing PDF files. Download directly to your device: Download PDF document

References

[1] Veen, J.v.d. and S. Binst, Praktijkboek instandhouding monumenten. 1998, Den Haag: Sdu Uitgevers.

[2] Scholten, N.P.M. and A.C.W.M. Vrouwenvelder, Eurocodes and the structural safety of existing buildings - Considering the publication of the Dutch NEN 8700, in 4th International Conference CIVIL ENGINEERING`13. 2013: Jelgava.

[3] NEN, NEN 8707 Assessment of an existing structure in case of reconstruction and disapproval – Geotechnical constructions. 2018: Delft.

[4] F3O/SBRCURnet, Richtlijn Houten Paalfunderingen onder gebouwen. 2016.

[5] Rijkswaterstaat, Richtlijnen Beoordeling Kunstwerken. 2013, Rijkswaterstaat.

[6] Schrier, W.v.d., Bouwen in gewapend beton : materiaal, berekening, constructie en toepassingen. 10 ed. 1956, Amsterdam: Argus.

[7] Tussenbroek, P.J.v., G. Vlas, and J. Krikke, Palen van gewapend beton. 2e dr. ed. 1973, Amsterdam

[8] Plantema, G., Results of a special loading test on a reinforced concrete pile, a so-called pile sounding, interpretation of the results of deep soundings, permissible pile loads an extended settlement observations, in Second International Conference on Soil Mechanics and Foundation Engineering. 1948: Rotterdam.

[9] Mierlo, W.C.v.K., A.W., Lengte en draagvermogen van heipalen; vaststelling hiervan en enige daarbij verkregen ervaringen. Bouw, 1952. 3.

[10] Zeevaert, L., Foundation engineering for difficult subsoil conditions. 1973, New York: Van Nostrand Reinhold.

[11] bouwtoezichtvereniging, C.O.B.v.d.H.-e., Richtlijnen voor funderingen van gebouwen- R.F.G. 1985. 1988.

Back to Top
GET PDF

Document information

Published on 30/11/21
Submitted on 30/11/21

Volume Conservation of 20th c. architectural heritage, 2021
DOI: 10.23967/sahc.2021.297
Licence: CC BY-NC-SA license

Document Score

0

Views 5
Recommendations 0

Share this document

claim authorship

Are you one of the authors of this document?