In the activity on construction of real estate objects the company uses modern special equipment, in particular, belonging to сontracting organization.

Work of special equipment, as well as in general process of erection of buildings, in many respects depends on weather conditions. In order to ensure industrial safety, PIK and its contractors comply with the requirements set forth in building codes and rules (IBC 12-03-2001 and IBC 12-04-2001), of the Russian Federation, and also in a number of other documents of Rostekhnadzor.

7.2.3. During placing and operating of machinery and vehicles actions must be taken,to prevent their tipping or free movement due to wind, slope or subsidence.

9.2.7. Welding work outdoors in the rain, the snowfall must be stopped.

8.3.9. It is forbidden to carry out installation works at height in open places at a wind speed of 15 m / s and more, at ice, the thunderstorm or the fog excluding visibility within the front of works. Work on the movement and installation of vertical panels and similar structures with high windage it is necessary to stop at a wind speed of 10 m/s or more.

During the operation of tower cranes to monitor the strength of the wind and compliance with state safety requirements, as a rule, is used regular monitoring equipment installed in the driver’s cabin.

Unilateral control leads to the fact that construction managers have to depend on the decisions taken by a particular driver. In such cases, there is always a risk that the employee can ignore the strong gusts of wind – and this will lead to overload and breakage of equipment, or to an emergency situation. It is also possible that the crane operator can refer to adverse weather conditions and stop working, while in reality the wind gusts did not reach critical values.

Such situations, arising due to human factors, threaten deviations in the schedules of construction of facilities and unreasonable costs for technical assistance and repair of equipment. The simple operation of the tower crane on the construction site results in the suspension of the work of other equipment and builders, who still have to receive wages.

At the same time, since the construction mainly involves contractors, the developer can not administratively influence the drivers. That is, disputes have to be resolved through contractual relations with third parties, which may also knowingly or unintentionally rely on biased information.

As an example of the risks arising from the absence of remote control of the operation of the crane, you can give the following calculation. In the construction of a residential complex in the segment «Comfort» in Moscow, the customer spends 35 000 rubles per square meter. Consequently, the cost of downtime one day the crane driver will be 14 000 rubles, and the complete suspension of construction of residential complex with an area of 83 790 square meters will be 2 676 940 rubles per day. Of these, up to 50% is spent on construction and installation work.

For accurate information on weather conditions affecting the work of tower cranes, the company decided to equip the PIK technique Sokol-M professional weather station.

Initially, the station was installed on one of the cranes with a height of 77 meters. During the tests, the equipment was tested for performance in various weather conditions and the accuracy of measurements of meteorological parameters. The software «Escort» was also tested for convenient display of weather data and prompt informing of the management and dispatchers about the events at the construction site. The possibilities of displaying parameters in the current mode and in the form of archival data, the function of sending SMS and e-mails in critical gusts of wind were tested.

According to the results of the tests, the professional weather station «Sokol-M» coped with the tasks, which convinced the customer to use this device in many construction projects.

The screenshots from the program for remote monitoring shows how the professional weather station captures wind gusts during a given period of time. As can be seen, «Sokol-M» three times accurately determined the excess of permissible values (10 and 15 m / s), at which the work of the tower crane must be stopped.

• Obtaining permanent access to information on weather conditions for the purpose of rapid response to situations that threaten security.
• Obtaining an archive of weather data for the purpose of derivation averaged values and construction planning.
• Obtaining objective information to resolve disputes situations with contractors and personnel.
• Obtaining administrative influence on the special equipment contractor.
• Reducing the cost of self-maintenance of machinery.