06_Ausfuehrungsplanung_.jpg

Detailed construction design, preparation, and assistance with tendering


Description and specification of services

Description of services
When constructing a building, cost-efficient solutions are an important factor. For this reason, many suppliers and manufacturers develop and use system solutions or modular construction systems. If a client opts for a particular system, this minimizes the pool of potential bidders.

One way out of this situation is a description of services. This sets out all services to be provided and constraints associated with the object, without specifying a system. The bidders who receive the description of services can use their own systems and thus submit cost-efficient bids, provided they comply with and implement the established constraints.

We take advantage of these benefits in your interest.

Specification of services
A specification of services comprehensively describes or states the service package to be provided in qualitative and quantitative terms. In contrast to descriptions of services, specifications of services provide for improved comparability of bid documentation.

A structured procedure is necessary to develop specifications of services. To ensure a high-quality specification of services, detailed construction design is absolutely essential. Without this it is not possible to provide comprehensive descriptions of masses, dimensions, etc. of a particular component.

Structural design

Structural design means the structural engineering design services for buildings and associated structural installations in accordance with the scope of services under the German Fee Regulations for Architects and Engineers (HOAI). The aim of structural design is to reconcile the necessary load-bearing capacity and usability of a structure over its projected lifetime with the demands for cost efficiency and aesthetics.

Structural design uses the structural analysis approach (structural engineering) and is carried out at all service stages for new buildings, conversions, and renovations. It includes working with different types of structures as well as different construction materials such as reinforced concrete, prefabricated parts, steel, timber, and masonry.

Equipment installation plans

The creation of equipment/apparatus installation plans is an important element of factory design. This means that you are gathering knowledge about the actual installation as early as the design phase, which enables conclusions to be drawn as to the feasibility. You can also use the plans to ascertain the demands placed on the building envelope by machinery and systems.

As early as the initial planning and permit approval stages, the equipment and apparatus installation plans serve as a basis for illustrating the complete installation, and also for discussions with the building contractor and relevant approving authorities. For these reasons, such plans should be a staple part of any design phase.

Aspects such as the following should be checked and/or ascertained:

  • How should the system equipment be installed to allow the desired technological processes to run logically?
  • How much space does each installation require? Based on this it is then possible to determine the necessary footprint for the structure.
  • Is it possible to achieve the necessary logistical elements (e.g. in-plant transport) with the equipment/apparatus installed as in the current plan?
  • Where are the best storage areas from a technical production perspective?
  • Could the necessary footprint be optimized using a different arrangement of equipment/apparatus (comparison and evaluation of options)?


We are on hand with our expertise, high-performance computer engineering, and up-to-date CAD software to support you in drawing up customized equipment installation plans.


Functional tender and proposals for awarding the contract

Functional tender
A functional tender (see also description of services) is an important tool in clearly stating the service elements required for a desired output. All services to be provided and object-related constraints are therefore described in full. Quantitative data, as set out in a specification of services, are generally not included here.

Using a functional tender can help dispense with the need to specify a particular system. In this case, bidders again have the option of using their "in-house" system (modular construction system) and can thus submit cost-efficient bids.

Proposals for awarding the contract
A desired output can be clearly described by means of a functional tender or description of services and/or a specification of services. At the end of the bid period, we thoroughly examine the contents of the individual bids. In doing so we do not just compare the cost positions; on the contrary, we examine which services are "hiding" behind the given price of a position. This evaluation generally results in one to three preferred bids/bidders who are offering an appropriate bid price for the given scope of services.

We then come to an informed decision based on professional judgment and draw up an appropriate recommendation as to who should be awarded the contract by the client.


Risk assessment in accordance with the Machinery Directive and DIN EN ISO 14121-1

Risk assessment in accordance with the Machinery Directive 98/37/EC (Directive 2006/42/EC valid from 2009-12-29) and hazard risk assessment in accordance with DIN EN ISO 14121-1 are important tools for evidencing safety in the sense of conformity with EU legislation and providing machinery or a system with the CE marking.

A risk assessment is carried out when individual machines or systems are constructed and when several systems / subsystems are linked together. For example, in the automotive industry machines from different manufacturers/supplies are linked together when constructing conveying systems. Linking of this kind can cause potential hazards which would not have an effect during the installation of one system in isolation. Moreover, the CE marking of the manufacturer or supplier of a system or system section does not cover its connection to other systems / subsystems. Hazard risk assessment elicits potential hazards and demonstrates means and / or options to eliminate the identified risk or reduce it to a safe level.

When it comes to risk assessment in accordance with the Machinery Directive, our engineers take a structured and targeted approach. We carry out an inspection and gather the necessary data on site. We then evaluate the data and assess the hazard potential. We present you with proposed solutions for eliminating or minimizing the hazards. As an output of the risk assessment, we will provide you with detailed documentation.

In addition, a risk assessment in the planning phase enables safety aspects and workplace safety requirements to be included in the design, reducing costs of extra work at a later stage.

Thermal insulation certification

Buildings and spaces that are heated and/or cooled using energy require an energy analysis. This likewise applies to systems and equipment used for heating, cooling, ventilation and air conditioning, and lighting, as well as for the hot water supply in heated / cooled buildings.

To determine the annual primary energy requirement of a heated / cooled building, a thermal insulation certificate must be maintained in line with the applicable statutory legislation (German Energy Conservation Regulations, EnEV). Among other aspects, this includes consideration of factors such as building orientation, data on sections of the building (make-up of the building section, proportion of structure floor space etc.), and systems for heating / cooling the building. Thermal insulation certification determines the annual primary energy requirement, which must not exceed established limits.