Agnieszka Leśniak

Despite of many tools supporting construction management delays are often found effects in construction projects. The papers presents the findings of a survey aimed at identifying the most important causes of delays in construction works from the viewpoint of contractors. The knowledge can be helpful for minimizing delays occurring risk.

Przebieg procesu budowlanego w czasie kształtowany jest przez wiele czynników, które w efekcie mogą
stać się przyczyną nieterminowego ukończenia przedsięwzięcia. W artykule zaprezentowano wyniki badań przeprowadzonych wśród polskich wykonawców budowlanych. Jednym z zamierzeń była próba identyfikacji potencjalnych przyczyn opóźnień robót budowlanych wynikających z postanowień umowy. Wczesne rozpoznanie i ocena możliwych zagrożeń może wspomóc działania wykonawcy w celu ich eliminacji lub zmniejszenia skali opóźnień w realizacji przedsięwzięcia.

As a response to the growing need for cheaper and more energy-efficient buildings, this paper presents a building system based on a heavy timber frame. The cost analysis to build a wall which meets the requirements for a passive building concludes that a prefabricated heavy timber frame is at the forefront of cost minimization. The recognized advantages of prefabrication can prove that this method of constructing single-family homes, with a positive impact on temperature and humidity, may become an alternative to existing technologies.

The article presents a classification of sports floors based on the type of deformations to which they are subjected and gives several examples of possible methods of their manufacture and installation. Three variants of sports flooring have been suggested for a selected sports venue and, subsequently, a multi-criteria comparative analysis has been carried out for the variants taking into account the following criteria: cost, installation time, suitability for various sports disciplines and other extra-sport purposes as well as the floor thickness.

The planned hospital partition walls need to meet the requirements for spaces used to provide medical services specified in the relevant regulations and laws. A wide range of materials which meet these requirements are available in the construction market. During the design stage it is worth making a comparison of different solutions for the walls, analysing the cost, time taken to install and quality. This paper presents and attempts to assess three variants of partition walls for operating theatre spaces.