aa3 tah cs1_chandelier system ah

7/29/2019 AA3 TAH CS1_chandelier System AH

1/15

NH QUC HI - NATIONAL ASSEMBLY HOUSEH NI VIT NAM - HANOI, S.R. VIETNAM

CHANDELIER SYSTEM A.HALL

[Document # AA3-TAH-CS1]

Related Document: AA3-DMT-AH2

Client

Project Management Board

of the National Assembly House

and new Badinh Conference Hall - Ministry of Construction

19 Ngoc Ha Street, Ba DInh District - Hanoi

tel: +84.4.37281530

Design Consultant

gmp international GmbH / INROS LACKNER AGElbchaussee 13922763 Hamburg

Germany

tel: ++49 - 40 - 88 151 - 0fax: ++49 - 40 - 88 151 -177

mail Hamburg: [email protected]

mail Hanoi: [email protected]

Vietnamese Consultants

VNCCVIETNAMESE NATIONAL CONSTRUCTION CONSULTANTS

243 De La Thanh, Lang Thuong; Dong Da district

Hanoi / S.R Vietnam

tel: ++84.4.7.667475fax: ++84.4.7.667464

mail:[email protected] ; [email protected]

edition 13.09.2012


2/15

National Assembly House, S.R. Vietnam

gmp international GmbH INROS LACKNER AG 2011-09-13

2 / 15Document

AA3-TAH-CS1

General mechanical equipment to move the chandelier in the Main Assembly Hall

01 shaft 07 rope02 motor 08 main steel structure cupola03 diverter 09 outline chandelier frame04 steel structure 10 basic steel girder (counter frame)05 drive 11 point of connection (rope - counter frame)06 rope drum

in upper position additional mechanical interlock for maximum security


3/15



3 / 15Document

AA3-TAH-CS1

01 shaft 07 rope02 motor 08 main steel structure cupola03 diverter 09 outline chandelier frame04 steel structure 10 basic steel girder (counter frame)05 drive 11 point of connection (rope - counter frame) 06 rope drum

in upper position additional mechanical interlock for maximum security

Preliminary requirements - mechanical equipment

The following requirements shall be considered for general description (and pricing) of all items of thisparagraph, unless specified otherwise:

no.1 General

All plant elements, devices and components must be designed and installed with a view to operatorcomfort and easy maintenance. They must be easily and safely accessible for inspection, main-

tenance and repair. The refilling, inspection and lubricating points must be arranged for fast andeasy access. If the actual loads to be introduced deviate from the loads originally specified, it isimperative to obtain the Structural engineer's prior approval.

After finishing the design of the mechanical equipment the precise load drawings shall beprepared, these load drawings have to be approved by the supplier of the support constructions.

The constructions will be designed for buckling resistance and low vibration.


4/15



4 / 15Document

AA3-TAH-CS1

no.2 - Mechanical design of the winches

2.1

As a rule, the drives and every single one of their functions must be designed in absolute

compliance with according standards for Machinery installations. Safety requirements andinspections.

2.2

All drives must be mounted on a machine frame using isolat ion elements against structure-borne noise. The frame must be installed firmly to the supporting beams. The frames must bedesigned to ensure that the loads will always be transferred to the structurally defined supportprofiles.

2.3

All movable parts (gear, drive motor, wire rope hold-down roll, etc.) must be designed for thelowest-possible operating noise.

2.4

It must be considered that the maximum level of the noise pressure for the stage equipment withthe full load 100% and nominal speed 70% is 63 dB(A), provided that the noise measurements are

done at the distance 1 m from the machine. The stated maximum value is relevant for all types ofnoise (including brake noises and switching noises), which arise during the whole movementprocess (movement cycle).

2.5

All drives and drive parts must be dimensioned for operation with overload (120% of rated load).During the acceptance tests the brakes will be tested with testing load (125% of rated load),

which must also be bearable by all drive parts.

2.6

Oil pans for potential gear oil leakage or other lubricating oils of the drive unit such as clutches,spindles, etc. must be integrated in the machine frame underneath every drive unit.Transmission oil changes and hydraulic oil changes must be easy to accomplish.

2.7

If linear sliding-contact bearings are used, they must be equipped with lubricating nipples orsufficiently dimensioned grease reservoirs for adequate permanent lubrication.

no.3 - Accuracies, tolerances

The following drive accuracy rates are required:

Drive travel precision:


5/15



5 / 15Document

AA3-TAH-CS1

no.4 Drive motor

Only brushless motors must be used as drive motors. Motors with low rated speeds(nmax


6/15



6 / 15Document

AA3-TAH-CS1

no.7 Electronic position measuring system

The electronic position measuring system must be mounted to the compact drive and connected

to the wire rope drum in a backlash-free manner.

The system consists mainly of the following components:

Limit stop switch of the gearbox for emergency stop at the top and bottom positions, adjustablemovement range, and adjustable limit switch positions, easy-adjustable and accessible for themechanician.

Absolute encoders designed as position encoders, adjustable, with programmable sense ofrotation and option for setting the number of steps per revolution, adjustable up to 4 decimalpoints, connection of the absolute via plugs with high contact stability.The Contract Undertaking Party must take appropriate measures to rule out incorrect actual-position detection. The bidder can use for example a 2nd encoder and so on. The position

measuring system must be unified in all drive units of similar type. The encoder must meet therequirements according to SIL3 in DIN EN 61508.

All necessary encoders, limit switches, monitoring switches and interlock switches as well asthe internal cabling is regarded to be included in the unit prices.

no.8 Limit switches

The system of limit switches consists of the following switches:

two (2) preliminary limit switches for speed reduction (with signal contacts or via encoder)

two (2) operating limit switches for the operating limit positions (with signal contacts or via encoder)

two (2) emergency limit switches (only signal contacts are admissible)

All switches must be easy to adjust and well accessible. Position transmission to the controlsystem must be serial. The switches must meet the requirements according to SIL3 in DIN EN61508.

no.9 Overload protection

Each kind of equipment must be equipped with an overload protection. In case of overloadthe drive must be switched off immediately.


7/15



7 / 15Document

AA3-TAH-CS1

no.10 Load measuring system

For each kind of equipment which requires an exact and real-time load measuring the drive mustbe equipped with a load measuring system consisting of a suitable load sensor and an analyzing

unit. The load measuring system must measure the actual suspended payload and transmit thevalue to the control panel, where it must be displayed for the operator's information. Theanalyzing unit and the control system must secure the switch-off of drive at 125% rated load(overload). In case of overload the movement of machinery equipment must be stoppedimmediately (travel max. 0.50m). After switching-off the drive it must be possible to move theequipment in the opposite direction back to a safe position. The sampling rate of the loadmeasuring system must be chosen appropriately to ensure the maximum admissible traveldistance after switch-off.

If the drive system is equipped with a load measuring system the load measuring by measuringthe flow of electrical current is not admissible!

no.11 Slack rope detection

The Contract Undertaking Party must implement an appropriate measure for reliable slack ropedetection directly at the winch. It must therefore be selected an adequate measure to meet therelated safety requirements. In the description the bidder shall explain how it can be possible toavoid the slack rope detection in case when the rope slacks for short time.

no.12 Wire rope outfeed

The winding mechanism of the winch must be monitored, and the hoist or group of hoists beswitched off in the event of faulty winding or slack rope.

no.13 Terminal box

All drive units must be equipped with a central terminal box where all cable connections requiredfor the drive are merged and centralized. The required maintenance switch must be arranged in asuitable position on the drive.

Cable connection inside the terminal box must be via reliable switchgear assembly series terminalsidentified by easy-to-read tags.

Permanently fastened cables must be connected via terminal strips, pluggable cables must beconnected via suitable plug and socket connections.

All terminal boxes must be designed and wired for the highest possible degree of uniformity.Also all electrical connections, cable conductor numbers and cable colours must be unified forall drives.

The cover lid of the terminal box must house a socket-outlet for plugging in the emergencycontrol, a maintenance switch, a lockable switch for releasing the brakes. If dual circuit brakesare used they must be designed for individual release (without need of intervention in thewiring) due to the required periodic inspection.


8/15



8 / 15Document

AA3-TAH-CS1

The protection class of terminal boxes must be IP54, or better.

no.14 Emergency drive

All types of drives must be equipped with an emergency drive to move the loaded drives. Theconstruction solution of drives must permit operation by a single operator (by one person). It mustbe ensured by appropriate measures that when the emergency drive is installed the main drivemotor must inevitably be switched-off. The direction of the drive rotation up/down and forth/backshall be easy recognizable.

no.15 Safety equipment

Any open, protruding and rotating elements of the drive units must be covered with adequate

protective covers. Any equipment or part of the equipment that are installed or extend intotransport ways must be carefully protected to prevent accidents using railings or gratings (meshsize max. 20x20 mm).

no.16 Purchased parts and components

Identical parts must be procured from the same manufacturer. This applies especially tocomponents such as motors, gears, switches, sensors, plugs and control panels, monitors, controlelements etc.

All assembly groups of electronic parts must be designed unified. It is not allowed to mix differentsystems or software within the machinery system. All electronic assembly groups must 100%compatible.

The Client and the Design Company must be notified immediately if there are important reasonsfor introducing other components or alterations in the components during the course of theproject. However, any alterations are always subject to the Client's express written consent.

no.17 Load suspension truss

17.1.

The load suspension truss must be designed as steel compound structured suspension frameaccording the structural demand.

17.2.

The wire ropes will be fastened to the load suspension bar permitting length adjustment. Unlessspecified otherwise the load suspension bars will be equipped with cable clips with a hole. Thecable clips shall be one-piece und shall sit tight round the load suspension bar. Through the hole inthe cable clip a chain link connects to a turn-buckle (rope clamp) for length adjustment. The turn-buckle shall be connected to a wedge lock. The turn-buckle and the wedge lock shall be positioned


9/15



9 / 15Document

AA3-TAH-CS1

horizontally to ensure the maximum possible stroke of the fly bar. The wire ropes are connected tothe wedge locks. The loose wire rope end at the wedge lock is provided with a rope clamp toprotect the wire rope from loosening inside the wedge lock. The loose end will be fastened to thesuspended wire rope end with tape. The rope runs from the wedge lock through the fixed pulley ora part of the pulley, fastened to the bar by means of cable clip, and then it runs vertically upwardsto the rope pulley on the pulley level. The radius of the pulley fixed on the load suspension barshall be equal minimum seven (7) diameters of the wire rope. The f ixed pulley shall be equippedwith the rope guards preventing the rope from jumping out of the pulley groove. It is prohibited touse screw-clamps to fasten the rope ends. There must be provided a removable canvas coverabove the complete wire rope fastening elements for each wire rope to protect adjoining backdropsor decoration from damage in case of collision.

17.3.

The wire ropes will be fastened to the truss permitting length adjustment. adjustment. The turn-buckle shall be connected to the above positioned wedge lock The turn-buckle and the wedge lockshall be positioned vertically.

The wire ropes are connected to the wedge locks. The loose wire rope end at the wedge lock isprovided with a rope clamp to protect the wire rope from loosening inside the wedge lock. Theloose end will be fastened to the suspended wire rope end with tape.

It is prohibited to use screw-clamps to fasten the rope ends. There must be provided a removablecanvas cover above the complete wire rope fastening elements for each wire rope to protectadjoining backdrops or decoration from damage in case of collision.

17.4.

The load suspension truss will be finished with matte black varnish.

no.18 Wire ropes

18.1.

The steel wire ropes used for load-bearing purposes must be selected for a safety factor of 10or higher for maximum rated loads, in terms of calculation tensile strength. The wire ropecalculations and factory test certificates are an integral part of the acceptance documents.

18.2.

The only admissible way for connection of wire rope ends to other elements are wedge locks orcompression clamps.

Rope clamps for bearer wire ropes are prohibited. They are only admissible for secondaryconnections (e. g. tension wire ropes).

Only wire rope end connections capable of transferring at least 80% of a wire rope's minimumtensile strength may be used.

18.3.

Only galvanized, prestretched wire ropes with a tensile strength of 1,770N/mm2 or higher anda minimum space factor of 0.54 will be used.

18.4.

All wire ropes must be stretch-free and free of twists. To meet that requirement the wire ropesmust be prestretched.


10/15



10 / 15Document

AA3-TAH-CS1

18.5.

Wire rope eyelets must have inserted wire thimbles.

18.6.

Wire rope connections at support links must be bend-free (three degrees of freedom) anduniversally movable. The design of the connections for each item must be approved by the Clientand by the Design Engineer Company.

18.7.

Turnbuckles (rope clamp) must generally be equipped with locknuts and untwisting safeguards

(split pins or clamping sleeves). If two wire ropes or chains between the system, drive and/or

counterweight are attached at the same suspension position, at least one side of the wire rope

connection must be equipped with a mechanism for automatic length adjustment (compensator,

seesaw). Turnbuckles alone will not meet this requirement!

18.8.

Wire ropes showing permanent damages at the time of installation or during theconstruction period have to be replaced.

no.19 Wire rope pulleys

19.1.

The minimum diameter of the wire rope pulleys and wire rope collecting pulleys, must be at leasteighteen (18) times the size of the wire rope diameter, but must never be less than 250 mm.

19.2.

All wire rope-collecting pulleys, wire rope-tensioning idler pulleys and diverter pulleys will be madeof cast metal (cast steel or gray-cast iron) and equipped with two (2) maintenance-free grooved ballbearings, an oxidation- and acid-resistant lubricant grease reservoir, and disk seals on both ends.

All wire rope pulleys will furthermore be equipped with a wire rope guard to prevent the wire ropesfrom jumping out.

19.3.

The wire rope pulleys of all equipments, which will be used during performance, the pulleys mustbe isolated against structure-borne noise. Additional measures according to the requirements ofthe acoustician must be taken as well.

19.4.

If several pulleys are installed on a single shaft, they must be mutually insulated againstnoise transmission and friction.

19.5.

The scope of supply also includes the axles, axle supports, safety brackets for wire ropesafeguarding, and complete support structures.


11/15



11 / 15Document

AA3-TAH-CS1

19.6.

Sampling (prototype technical release procedure) of the wire rope pulleys is also required.

19.7.

The positions of the individual pulleys will be exactly determined using laser measuringequipment.

19.8.

The wire ropes must run through the wire rope pulleys without deflection angles and with perfectgroove centering (evaluation criterion: noise emission). The wire rope outfeed must not deviateby more than 3 degrees on either side from the direction of the wire rope groove.

It must be ensured by appropriate constructional measures that the incoming and outgoing wirewire ropes never run off sideways from the wire rope grooves of the wire rope pulleys, not evenin the presence of slack rope.

19.9.

The use of sliding-contact bearings will not be accepted for wire rope pulleys.

19.10.

The diameter of the wire rope pulleys shall be specified in relation to the grooves, and not inrelation to the outer diameters. The pulleys shall have exactly cut grooves, without burrs.

19.11.

Included in all items are the wire rope pulleys and their support structure required to create acomplete and proper wire rope course even though the pulleys are not all listed in the relativeitem.

19.12.

The pulleys and pulley frames shall be fastened to the support structures by means of clamps. Allthe bolt joints of the pulleys shall be equipped with the safety elements to protect the bolts againstself-unfastening (safety nut, lock washer and so on).

no.20 Wire rope drums

20.1.

The minimum diameter of the rope drums, as measured by the centre-to-centre distances betweenthe wire ropes, must be at least 30-times the size of the wire rope diameter. The grooves of therope drums must be have the size of at least 0,5 times of the rope diameter.

20.2.

Both ends of the wire rope drums must be outfitted with projecting washer disks to protect thewire rope from falling off the drum. The height of the washer disks must exceed the wire rope byat least 1,5x the diameter of the wire rope.


12/15



12 / 15Document

AA3-TAH-CS1

20.3.

It is only admissible that the wire ropes will be winded on bearer rope drums in singlelayerstructure.

20.4.

The wire ropes must be fastened to the drums by clamping using at least 2 clamping blocks foreach wire rope. Each clamping block must be fastened to the drum using min. 2 bolts with springrings.

20.5.

During up and down movements in each operating phase at least 1,5 rope wraps must remaintightly wound on the drum, excluding the wraps under the clamps.

20.6.

The wire rope outfeed of the drum must not deviate by more than 3 degrees on either side from

the direction of the wire rope groove.

20.7.

Each drum must be equipped with a wire rope hold-down roll or wire rope hold-down strip toprevent the wire rope from jumping over or off.

20.8.

It must be controlled, when wire rope is wound onto a drum, in case of wrong winding ordeflection the drive or the group of drives must be switched off.

no.21 Labelling

21.1.

The Contract Undertaking Party is generally responsible for the labelling and identification,according to regulations, of all works rendered by him, by providing the appropriate operatinginstructions, safety instructions and diagrams as well as by mounting regulation-conforminginscribed hard plastic signs or equivalent signs of a durable type.

21.2.

All fixed and movable equipment components must be outfitted with rating plates, warning signs

and information signs indicating the maximum admissible loads of the equipment both at rest andduring operation, even if this requirement is not specifically mentioned in the descriptive texts ofthe individual item.


13/15



13 / 15Document

AA3-TAH-CS1

21.3.

The labels be fixed to the drive unit in a permanent and easily visible manner, the labels mustshow the following technical data:

Manufacturer Year of construction

Type of drive

Serial number

Dead weight of drive in kg

Rated load in kg

Maximum speed in m/s

Maximum stroke in m

Rated engine power of the drive motor in kW

21.4.

Labelling on stage

For each drive type load diagrams with the maximal acceptable payloads must be fixed in thefront stage area. The labels must show the following technical data:

- Maximum single load below one wire rope suspension point in kg

Maximum truss load in kg

21.5.

Each fly bar must be equipped with the label showing the acceptable load diagrams. The labelmust contain information, given in 21.4.

21.6.

All signs, labels and identification plates must be fixed in well-visible positions agreed withConstruction management and operating team and must be well legible and durable.

no.22 Cleanliness

The Contract Undertaking Party must take appropriate measures to ensure the cleanliness of thedrive units and other sensitive components or equipment parts during the construction period.


14/15



14 / 15Document

AA3-TAH-CS1

no.23 Drive

The drive consists of the following:

motor gearbox

dual circuit brake

wire rope drum

machine frame with fastening elements

wire rope pulleys

pulley block

wire ropes and fastening elements

load suspension bar

cooling system

terminal box

cabling

electronic position measuring system

overload protection

load measuring system

slack rope detection;

Drive:

Electromechanical winch drive with three-phase asynchronous motor

Brake assembly:

Dual circuit brake, brake opening/closing noise


15/15



15 / 15Document

The deliveries and services to be rendered under this item mainly consist of the following:

complete drive winch including internal cabling wired to the integrated terminal box with elementsfor fixing to the support structures

telescopic load suspension bar wire rope pulleys and pulley block including their related support structures

twist-free drive wire ropes, galvanized, with thimbles, protecting threaded plates and turnbuckles

wire rope fastening elements (e. g. turnbuckle, chain links, wedge lock)

machine frame

labelling with loads

hoist numbering

commissioning and acceptance

operating manual and other required documents

Complete manufacture, delivery, installation and commissioning of this item. The costs fortransporting the construction to the final destination on site as well as all other installation andtransportation tools must be included under the item 'Building site equipment'. This item alsoincludes all connection profiles, support profiles and crossbeams, adjusting materials, bracings,gusset plates, screw connections etc., and all painting materials, small materials and fastenings.The preparation of workshop drawings, installation and as-built drawings must also be included inthe price for this item.

Chief Architect Author of this Document:Marcus Tanzen (gmp) Mr. Nrnberger (SBS)

Project managerJoern Ortmann (gmp)

aa3 tah cs1_chandelier system ah

Documents