Crane Detail

International Journal for Computational Civil and Structural Engineering, 2017

Attention has been paid to the fact that design load case combinations and design combinations of the internal forces caused by these loads have got a different probability of implementation. This fact has been is illustrated by the example of the crane loads, where the traditional calculation does not take into account such random factors as position of the crane bridge and position of the trolley on the crane bridge. Analysis has been performed using statistical modelling. Results of the modelling has been also presented. It has been suggested that there is a specific way to include load combination factors into the calculation formulas by which inclusion of temporary load in a design load case combination should be performed with combinational value of the loadcombination factor decreased when including each new temporary load.

2012

У навчальному посібнику висвітлено питання, пов’язані з читанням та деталюванням креслеників загального виду. Розглянуто методику та особливості деталювання креслеників загального виду, наведено загальні рекомендації щодо виконання робочих креслеників типових деталей. Методику самостійної роботи над цим розділом курсу інженерної графіки та технічного креслення проілюстровано на прикладі. Для контролю якості засвоєння матеріалу наведено низку креслеників загального виду, що можуть бути запропоновані студентам як контрольні завдання для читання та деталювання. Посібник містить витяг із стандартів на більшість конструктивних та технологічних елементів, потрібних для виконання робочих креслеників деталей. Наведено приклади виконання робочих креслеників типових деталей. Навчальний посібник призначений для студентів технічних спеціальностей.The questions related to reading and are reflected in train aid деталюванням of креслеників of general view. Methodology and features are considered д...

Николай КОЦЕВ, Калин РАДЛОВ nkotzev@abv.bg, kradlov@abv.bg доц. д-р инж. Николай Коцев, маг. инж. Калин Радлов, Катедра: "ИЛПТСТ", Технически Университет-София, БЪЛГАРИЯ Резюме: Предложен е подход за избор на критични елементи от носещата конструкция при сеизмична квалификация на мостови кранове. Изборът се прави по бална оценка въз основа на възприети три критерия: ниво на безопасност, ремонтопригодност и вероятност от претоварване. Така определените критични елементи се подлагат настатичен и динамичен анализ с натоварване потрета изчислителна комбинация. Ключови думи: Мостови кранове, сеизмични натоварвания, критични елементи Abstract: There is an approach suggesred for choice of bearing structure critical elements at seismic qualification of double grider cranes preparation. The choice is based of three criterial general evaluation: safety level, repairability and overload probability. The choosed critical elements are put under static and dynamic analisys with loads of...

Savremena teorija i praksa u graditeljstvu, 2022

Gìrničij vìsnik, 2017

Journal of Mechanical Engineering and Transport, 2021

The problem of truck cranes is considered, in particular, the issues of ensuring the strength of the supporting structure of the chassis in different modes of operation, taking into account the peculiarities of the technological cycle. In truck cranes, the load loads are unevenly distributed. They depend not only on the weight of the crane and the load, but also on the position of the rotating part of the crane relative to the non-rotating, as well as on the departure of the boom. Loads on the support surface are transmitted through the outriggers. During the operation of the truck crane, the load on each remote support does not remain constant. Estimated loads, namely loads from the crane installation and cargo, will take into account different values of cargo weight, departure and crane height. Their size and location are determined according to the crane capacity diagram. Based on the analysis of scientific works on the impact of subsidence of outriggers in the ground during the ...

Bulletin of NTU "Kharkiv Polytechnic Institute" Series: Electrical Machines and Electromechanical Energy Conversion, 2019

Tehnika

In the new hall of the Institute for Materials and Structures, there was a need to control the geometry of the existing crane rails. In this paper, the methodology for determining the geometry of such a complex structure is presented, and the results of the applied method are also presented. The final product, i.e. the examined geometry of crane rails included numerical and graphical analysis of straightness, analysis of parallelism and analysis of horizontality of crane rails.

Bulletin of Dnipro University. Series: Mechanics, 2018