Hi all,
Continuing in my pursuit to understand the punching shear checks of EC2 I am performing some hand checks of software results.
It seems that I am stumbling on the calculation of the eccentricity Δe. I found a worked example but I don't understand the method used to calculate Δex. I...
Hi all,
I am having a little difficulty understanding the Eurocode 2 method for accounting for moment transfer at columns when assessing punching shear.
Referring to the EN1992-1-1 Designer's Guide, we see that β is the multiplier which is used to account for moment transfer.
My confusion...
Hi all,
I need to use steel dowel bars in a concrete column to provide additional axial compression capacity. A dowel bar is preferred to reinforcement as it can be made from higher strength steel. The axial force in the column is sufficiently high compared to the bending moment so that there...
Hi all,
I am working on the conceptual design of a cable stayed bridge. The bridge is a composite ladder deck supported by main cable stays which are attached to a curved (anti-funicular shaped) pylon. Each pylon (two at each end of the bridge) is supported by a single back-stay which connects...
Hi everyone,
I wanted to understand if anyone had experience designing composite ladder decks for cable stayed bridges.
There are plenty of design examples for standard ladder deck composite bridges but I have not been able to find any worked examples of a cable stayed bridge.
I have...
Hi everyone,
I wanted to understand if anyone had experience designing composite ladder decks for cable stayed bridges.
There are plenty of design examples for standard ladder deck composite bridges but I have not been able to find any worked examples of a cable stayed bridge.
I have...
Hi,
I am new to the graphical static method used to draw funicular polygons but I see that it has tremendous value. I am trying to define the funicular shape of a beam under the action of five parallel point loads.
The point loads have equal magnitude but the spacing along the beam varies...
Hi all,
I am trying to prepare an excel spreadsheet following the logic defined in 'Improved Schmidt Method for Predicting Temperature Development in Mass Concrete' by Christopher P. Bobko, Vahid Zanjani Zadeh, and Rudolf Seracino (attached).
I am obtaining unexpected results, I wondered if...
Hi all,
I am considering a case whereby I have a 5m vertical retaining wall which supports a cohesionless fill of density 1.9g/cm3.
The top surface of the backfill is horizontal and there are two vertical line loads acting downwards onto the surface. I need to calculate the active thrust...
Hi,
Looking for some clarification regarding the piecewise exact method when applied to SDOF non-harmonic systems.
I understand that the equation of motion that describes the behaviour of the system is as below...
Hoping someone might be able to assist me with a question regarding modal superposition.
I have a 3DOF system (3 storey structure) which I have calculated a modal mass matrix and a modal stiffness matrix for. Both of these matrices are 3x3 and diagonal so I understand I can now progress to use...
Taking my first steps into plastic analysis of steel beams. I have a problem whereby I have a simply supported beam with an overhanging cantilever section. I have identified that the plastic moment will be first reached at the location of the support B.
What is the interpretation of hinge...
