ISO 14829:2002 pdf download
ISO 14829:2002 pdf download.Freight containers -Straddle carriers for freight container handling -Calculation of stability.
The stability calculations specified in this International Standard are intended to ensure that users of straddle carners have adequate information about the behaviour of these carriers under various operating conditions
Stability warning and control devices are not covered by this International Standard.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard, For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies Members of ISO and IEC maintain registers of currently valid International Standards
ISO 668:1995. Series I freight containers — Classdication. dimensions arid ratings
ISO 4302:1981, Cranes — Wind load assessment
ISO 3874:1997. Series I freight containers — Handling and securing
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
straddle carrier for freight container handling
mobile handling equipment with main directions of movement, travelling and lifting which is not restricted to a fixed path and of which the guided lifting device is suitable for the lifting and horizontal movement of containers
NOTE 1 LIfting is by a lift frame attached to the top of the container by lwisdods.
NOTE 2 Dunng normal operations, the centre of gravity ci the lifting spreader is always between the tippntg lines determined by the soppoeling points Sam Figure 1.
The following special considerations silould be taken into account.
a) It is highly recornniended that, for containers which are larger and/or heavier than those designed In accordance with Iso 668 and which are handled by straddle carrier, additional calculations be performed to include the additional wind and mass effect.
b) Tyre service pressure below recommended service pressure wil reduce the stability of straddle carriers,
C) Load disinbution as per ISO 3874 for calculations is not possible for non-solid cargo commodities. e.g. bulk and liquid commodities. Special considerations are to be given to containers oontawiing bulk and liquid cargoes.
d) The operator of the straddle carrier should be aware that side shift movenients of the spreader and load can result in less stability than calculated
e) Heavy and sudden braking during high speed cornering may cause instability
1) Straddle carriers which are equipped with the capability of lifting two containers at a time (twin lift) require
special considerations.
NOTE Thés technology is still under development and is used at very few terminals. There is not enough data to enable appropriate specifications 10 be included in Ws document.
g) The relationship between speed and ti%nlng radius Is critical to the stability of the straddle carrier and requires special operational techniques by the driver and special considerations by the terminal operator.
h) Slippery driving surfaces may cause iristabdity during cornering.
