The A.V. E. self-operating district Paderborn is planning the construction of a central district building yard.
The planned circuit building yard should consist of the following building parts:
Double-locked operation and administration building, washroom, workshop building, vehicle hall, salt hall, carport building, bulk boxes. In addition, the following facilities should be available for future use:
brine tank, car workshop, indoor crane, lift, central wash room, in-house gas station, own heating system.
The implementation is to take place at the “Alte Schanze” disposal centre in Paderborn. The existing disposal centre covers an area of almost 150 hectares including development and open spaces. The new construction of the district building yard at this central location creates meaningful synergy effects between the district building yard and the disposal centre, as all infrastructure facilities already exist.
The factual scope, as does the technical execution result from ATV/DIN 18451 — scaffolding work and the following technical rules.
In addition to the standards listed in VOB, Part C, apply:
— DIN 685 tested round steel chains wire rope clamps for rope end connections for safety requirements,
— DIN 3088 wire ropes made of steel wires,
— DIN EN 13411-5 end connections for steel wire ropes; wire rope clamps with U-shaped clamping bracket.
In addition, the rules of the main association of commercial trade associations must be observed with priority:
— BGR 165 scaffolding general part with DIN 4420 (previously ZH 1/534.0),
— BGR 166 scaffolding system scaffolding (frame and module scaffolding) (previously ZH 1/534.1),
— BGR 167 scaffolding steel pipe coupling scaffolding (previously ZH 1/534.2),
— BGR 168 scaffolding boom scaffolding (previously ZH 1/534.3),
— BGR 169 scaffolding console scaffolding for construction and civil engineering (previously ZH 1/534.4),
— BGR 170 scaffolding console scaffolds for steel and plant construction (previously ZH 1/534.5),
— BGR 171 scaffolding construction trestle scaffolding (previously ZH 1/534.6),
— BGR 172 scaffolding mobile scaffolding (previously ZH 1/534.7),
— BGR 174 scaffolding suspended scaffolding (previously ZH 1/534.9),
— BGR 175 scaffolding assembly scaffolds in elevator shafts (previously ZH 1/534.10),
— BGR 179 use of protection nets (previously ZH 1/560),
— BGR 825 selection and use of transport platforms for construction work (previously ZH 1/475).
Technical rules to follow:
Quality protection:
RAL-RG 637 steel scaffolding, quality assurance
A durable surface with bumps in the range of +/-10 cm is provided. Concerns regarding the subsurface, the intended design and the possibility of anchoring and support must be communicated to the client immediately. The contractor must inform himself about the exact location of obstacles, such as cables, cables, channels, marketing, etc., and, if necessary, obtain a digging permit from the legal entities.
Unless described in detail in the list of services, the contractor undertakes to agree with the customer on site before performing the service in order to guarantee the scaffolding according to the requirements of the parties involved in the construction.
The control distance of the scaffolds from the outer wall is generally 20 cm, and 35 cm from the finished wall for façade cladding with larger elements (profiled sheets, glass facades).
If tubular steel scaffolds are advertised, the bidder is generally free to provide system scaffolding. System scaffolding must have approval.
They may only be built according to this approval.
It is not possible to freely choose the scaffolding by the bidder or contractor (pipe scaffolding or system scaffolding) if the corresponding part of DIN 4420 is referred to in the tender text or if the corresponding abbreviations of DIN 4420 are used.
The identification of the façade, room and supporting scaffolds with the name of the company operating up, including telephone number and area-related usage weight is indispensable.
This does not replace the marking according to DIN 4420-1.
Construction management may require the construction management to cover scaffolding with foil in order to exclude chimney effect in unfavorable conditions.
Metal scaffolding must be ground against static charge.
Aerial work platforms used in live lines (low voltage) must be insulated up to 1,000 V.
If only partial areas of buildings are installed, must be measured according to No. 5.1.2 DIN 18451.
Another sh. procurement documents.