Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: compressed bar

Sortuj według:

Ogranicz wyniki do:

Designing of Steel CHS Columns Showing Maximum Compression Resistance

Marcinowski Jakub, Sadowski Mirosław

Civil and Environmental Engineering Reports

2021

Vol. 31, no. 1

79--92

The paper deals with a shape optimisation procedure of steel, compressed bars. Circular hollow sections (CHS) of variable cross sections and variable wall thickness are taken into account. The proposed procedure for designing of steel rods exhibiting maximum compression resistance is effective and possible to use in engineering practice. The advantage of the proposed shape of the bar is that it allows to increase the value of its load carrying capacity, i.e. it ensures the transfer of a higher value of compressive force than similar, solid struts of the same mass and length. The extent of the increase in the load capacity relative to the load capacity of the reference solid, cylindrical bar depends on the slenderness of the reference bar and ranges from 60% to 170%. Due to this very beneficial fact, it can be used wherever it is required to maintain a certain stiffness and an increased value of compressive force is desired, as well as in constructions where it is necessary to reduce weight while maintaining the adopted mechanical parameters, e.g. values of load bearing capacity. Final results achieved in the research were presented in the form of the flow chart allowing to design the compressed columns of optimum shape.

Nieliniowy model pręta ściskanego wzmocnionego nakładkami

Walentyński R., Słowiński K.

Inżynieria i Budownictwo

2011

R. 67, nr 10

547-549

Przedstawiono metodę analizy wyboczeniowej stalowego pręta ściskanego wzmocnionego nakładkami połączonymi za pomocą łączników sworzniowych o nieliniowej charakterystyce. Model analityczny pręta o skokowej funkcji sztywności wykorzystano do wyznaczenia obciążenia krytycznego. Do rozwiązania problemu wykorzystano system obliczeniowy Mathematica.

There is presented the method of the buckling analysis of a compressed steel bar reinforces with straps connected with bolted joints with nonlinear characteristics. The analytic model of the rod with steep stiffness function enabled us to evaluate the critical load of the rod. The Mathematica system has been applied to solve the task.