Analysis of main causes of defects of multi-storey reinforced concrete frame buildings

Multi-storey reinforced concrete frame buildings are widespread in Russia. Most of these buildings have braced frame system, where the main load-bearing elements are columns, beams and hollow floor slabs, and the spatial rigidity is provided by additional diaphragms, staircase and elevator section. Such buildings are easy to design and build and are quite multifunctional in purpose. The article on the basis of the authors’ experience in the survey examines the main defects in such buildings. The causes of typical defects can be divided into objective, technological and operational reasons. Usually, the cause of survey can be structural damage discovered by the building owner that is why often the survey is conducted during the emergency condition, which can be avoided, if inspections and monitoring of the structures technical state are regular. Also there is a necessity of improving the design methods of new buildings and strengthening of existing ones

Quality control of highly specialized works during construction

The article is devoted to the organization of quality control of highly specialized work on construction sites. The need to use new methods of quality control during construction is identified and justified. Special attention is paid to the shortcomings of the existing methods and tools of quality control. The main advantage of the new control method is the simplicity of organizing quality control of highly specialized works

RELIABILITY OF STRUCTURES DURING THE CONSTRUCTION DEWATERING AS A BIM TASK

Determination of the dynamics of the groundwater level is one of the most important tasks, without the solution of which it is impossible to reliably estimate the reliability and durability of the projected building. In this article, the concept of applying information modeling technologies for obtaining a reliable "building-ground" system is proposed, which allows modeling the position of the groundwater level

METHODS OF DETERMINING THE PARAMETRS OF REINFORCEMENT, CONDITION OF REINFORCEMENT AND STEEL EMBEDS IN THE REINFORCED CONCRETE CONSTRUCTIONS IN THE SURVEY OF BUILDINGS

In the survey of reinforced concrete buildings and constructions it is necessary to determine the parameters of the reinforcement and establish the presence or absence of corrosion processes in reinforcement and steel embeds. In the case when the construction has the external evidence of emergency condition, baring isn’t possible due to the high probability of its collapse. In such situation it is advisable to use non-destructive methods. But on the basis of one method it isn’t possible to obtain reliable results. It is proposed to use a set of non-destructive methods to obtain objective and reliable results of research.В процессе обследования железобетонных конструкций зданий и сооружений возникает необходимость в определении параметров армирования и установлении наличия либо отсутствия коррозионных процессов арматуры и закладных элементов. В случае, когда конструкция имеет внешние признаки аварийного состояния, вскрытие не представляется возможным ввиду большой вероятности её обрушения. В такой ситуации целесообразно применение методов неразрушающего контроля. Но на основании одного какого либо метода не представляется возможным получить достоверный результат. Предлагается использовать совокупность методов НК с целью получения объективных и достоверных результатов исследования.Сборник выпущен при поддержке Фонда содействия развитию УрФУ имени первого Президента России Б.Н. Ельцин

Statistics Data of Monitoring of Civil Stone Buildings Operation

В данной статье на основании полученных результатов технических экспертиз гражданских зданий сделана попытка систематизировать возникающие повреждения и отказы каменных конструкций во временном формате их эксплуатации с привязкой к частоте их проявления, а также к категориям надежности. Полученные закономерности помогли бы сформировать эффективную систему профилактик по своевременному восстановлению зданий и продлить их эксплуатационный срок службы.In this article, based on the results of technical examinations of civil buildings, an attempt to systematize the resulting damage and failures of stone structures according to their operation period with reference to the frequency of their occurrence, as well as to the categories of reliability is made. The obtained regularities would help to form an effective prevention system for the timely reconstruction of buildings and extend their service life

APPLICATION OF FIBER REINFORCED CONCRETE IN STRUCTURES OF MODERN BUILDINGS AND FACILITIES

Сборник выпущен при поддержке Фонда содействия развитию УрФУ имени первого Президента России Б.Н. Ельцин

Survey of the Technical State of the Underground Part of the Building of Apartment Houses with Capital Repair in Sverdlovsk Region

В данной работе рассмотрены проблемы мониторинга жилищного фонда на примере обследования технического состояния подземной части здания многоквартирного дома при капитальном ремонте, расположенного в г. Екатеринбурге. На основании результатов обследования были даны рекомендации по усилению фундамента дома.This paper discusses the problems of monitoring the housing stock on the example of a survey of the technical condition of the underground part of the building of an apartment building during an overhaul, located in Ekaterinburg. Based on the survey results, recommendations were made to strengthen the foundation of the house

Development of the Regulatory System of Information Modeling in Construction in Russia

В настоящей статье представлена структурированная информация по развитию в России технологий информационного моделирования в строительстве, в целом, и ее нормативной базы на сегодняшний день, в частности. В хронологическом порядке описан ряд знаковых для этого направления событий, дана их краткая характеристика. Также приведено видение авторов на перспективы развития цифровизации строительной отрасли, описана концепция «Цифровой город», как совокупность информационной модели грунта, цифровой карты города, и базы данных BIM-моделей строительных объектов.This article presents structured information on the development in Russia of information modeling technologies in construction, in general, and its regulatory system, in particular. In chronological order, a number of important events for this direction are described, and their brief features are given. The author's vision for the development of digitalization of the construction industry is also given; the concept of "Digital City" is described as a combination of an information model of a soil, a digital city map, and a database of BIM models of building objects

Контроль качества узкоспециализированных работ при строительстве

The article is devoted to the organization of quality control of highly specialized work on construction sites. Identified and justified the need to use new methods of quality control during construction. Special attention is paid to the shortcomings of the existing methods and tools of quality control. The main advantage of the new control method is the simplicity of organizing quality control of highly specialized works.Статья посвящена организации контроля качества узкоспециализированных работ на строительных площадках. Выявлена и обоснована необходимость использования новых методов контроля качества при строительстве. Особое внимание уделено недостаткам существующих методов и средств контроля качества. Главным преимуществом нового метода контроля является простота организации контроля качества узкоспециализированных работ

Analysis of main causes of defects of multi-storey reinforced concrete frame buildings

Multi-storey reinforced concrete frame buildings are widespread in Russia. Most of these buildings have braced frame system, where the main load-bearing elements are columns, beams and hollow floor slabs, and the spatial rigidity is provided by additional diaphragms, staircase and elevator section. Such buildings are easy to design and build and are quite multifunctional in purpose. The article on the basis of the authors’ experience in the survey examines the main defects in such buildings. The causes of typical defects can be divided into objective, technological and operational reasons. Usually, the cause of survey can be structural damage discovered by the building owner that is why often the survey is conducted during the emergency condition, which can be avoided, if inspections and monitoring of the structures technical state are regular. Also there is a necessity of improving the design methods of new buildings and strengthening of existing ones