Top Structural Engineering Projects ➤ SDC Verifier

Overcoming a Straddle Carrier Steering Pin Crack: An SDC Verifier Case Study

Abstract: This case study details how SDC for Femap software aided in resolving a critical crack issue in a straddle carrier’s steering pin. The original design is analyzed, followed by a reinforced design, to assess the effectiveness of the improvements in stress reduction and extended lifespan. The Challenge The client requested a comprehensive analysis to […]

Analysis of the cylinder system of grab unloader

SDC Verifier Ship to shore Crane Transportation

Calculations for ship-to-shore crane marine transportation

A Nelcon 52510 ship-to-shore crane (height 70 m, weight 750 ton) had to be transported from ECT Rotterdam to TIS Terminal (“Pivdennyy” seaport). The crane overcame this distance in 20 days. The client – Kleiss Cranes Consultants – requested us to analyze the optimal conditions for the crane transportation (including Bosfor bridge passing) and docking […]

Static calculation of a cable winch

The design of a drum of a multilayer cable winch depends heavily on the maximum hoop pressure from the cable package. The DNV Rules for Certification of Lifting Appliances prescribes the hoop stress with a c-factor times the hoop pressure for single layer winches. In a 2008 revision, this factor was changed suddenly from 1.75 […]

Extended life time calculation of the Straddle Carrier

The original specification of the straddle carrier accounted for a maximum of 630.000 load cycles which is equivalent to 52.500 operational hours. After moving more than a 1.000.000 containers a remaining fatigue life of the metal structure of the straddle carrier was advised. Because of its high center of gravity and the absence of shock […]

Gantry cranes transportation by a sea-going barge

Static calculation, stability and buckling checks were performed to guarantee a successful transfer under high sea conditions. The structure of STS cranes (Ship To Shore cranes) can withstand high hoisting loads but for the side accelerations due to the barge motions, transport reinforcements are necessary. The relevant barge motions, accelerations, and rotations (are calculated for […]

Crane Hotel steel structure control according to NEN 2018/2019 and ANSI/AISC 360-10

Today, Faralda Crane Hotel is one of the most published buildings in Amsterdam and heritage in the highest rank (RCE Classification). It has been distinguished by the prestigious Pieter van Vollenhoven prize, the Annual award for high-profile and leading redevelop projects. But at the moment of renovation started, the situation was different. When SDC Verifier was […]

Cyclic loading influence check for the bulk material grabber

Precise and detailed finite element models of the grabber in closed, unequally closed and open position with different angles were built to simulate the cyclic working conditions. Based on the stress differences in different working load cycles, the fatigue life of the grab could be calculated. The detailed dimensions and improvement in the weld procedure […]

Strength assessment of the Cabin structure

A nonlinear calculation was performed to optimize the design of a cabin structure to improve the ultimate strength.

Bulk material conveyor

To investigate the premature idler support failure on an existing belt conveyor system, strain gauge measurements were taken together with the construction of three FEA models. A complete FEM model of the superstructure, to check the overall frame strength and a separate bend model to check the influence of the bulk material on the dynamic […]

Construction vessel sections buckling check

Detailed finite element model of the vessel with plate elements for the panels and beam elements for the stiffeners was built. Using SDC Verifier software all frames, decks and longitudinal panels of the vessel were recognized. Plate buckling check of each section according to Lloyds LAME rules was calculated with further reinforcement propositions. The total […]

Ship-to-shore crane design check

Structural calculations of the new ship-to-shore crane (STS crane) design taking into account strength, stability and fatigue checks according to standards. Normally modern standards as EN 13001, EN 15011 and FEM 1.001 are used but occasionally also older standards as DIN 15018 and NEN 2018 / NEN 2019 or the NBN E 52 series are […]

Completed Structural Engineering Projects

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