Influence of near-fault characteristics on inelastic response of multi-storey building with intensity measurement analysis

This study is presented to achieve three objectives: (1) to compare between the inelastic responses of buildings under near and far fault excitations, (2) to investigate the effect of the pulse to structural period ratio, and (3) to evaluate a set of intensity measurements (IMs) in terms of near fault (NF) earthquakes. A real reinforced concrete building with 35 storeys is analysed in the scope of the first and second objectives, whereas the third objective involves three general-frame buildings consisting of 6, 13, and 20 storeys. Results show that the NF excitation can drive the building to exceed its life safety performance level. Furthermore, the accuracy of the IM highly depends on the vibration period of the building and the function used to calculate the IM.

Helipad on the building roof design features

The following items are considered: requirements, constructive decisions for helipads; covering plate design of the helipad located on the building roof; helipad modeling in LIRA CAD SP; calculation of a multi-storey building with a helipad on the roof, check for strength and rigidity; characteristics of the helipad on the building roof.

Response spectrum analysis of irregular shaped high rise buildings under combined effect of plan and vertical irregularity using csi etabs

In this research work several high rise buildings were analyzed using CSI ETABS under the influence of the response spectrum analysis over it. Several different shaped high rise buildings such as H shaped, O shaped and C shaped buildings were taken into consideration for carrying out the research work. All three shaped buildings were of different storey that is of 12 storey and of 16 storey. For proper seismic analysis of all the above discussed buildings, response spectrum method of seismic analysis were taken into consideration. The results of all the buildings for response spectrum analysis were quite different from one another and it was found that the H-shaped building showed better results as compared to the other shaped buildings. It was also seen that the 12 storey building results were quite impressive as compared to the results of the 16 storey building. With the transference of heavy mass, very little effect was seen in latera sway i.e. variation in maximum displacement was negligible. Again, for 16 storey building, maximum displacement was found in the case L-Shaped 16 storey building with the value of 87.804 mm. Again, the transference of heavy masses had a minimal effect on total quantity and cost of the 16 Storey building. In the gist, it was concluded that, bending moments and shear forces were increased from 1.17% to 1.84%. Maximum variation in B.M and S.F. can be seen in O-shaped Building. L-shaped Building produces maximum displacement from all the three irregular shapes i.e. H-shape, L-shaped and O-shaped.

Desain Struktur Atas Gedung Rawat Inap 3 Lantai RSUD Nganjuk Menggunakan Standart Nasional Indonesia (SNI)

The hospital building is one of the building facilities that is developed continuously. The building was built as an effort to fulfill health facilities. In its construction, the hospital building must be properly planned so that it is safe to use. Planning includes the design and calculation of structural details. Several hospitals in the Nganjuk area added building units to meet the needs of the community, one of which was the Nganjuk Hospital which added a building to support services. Planning a multi-storey building is a solution because it will be able to accommodate many patients. This plan aims to plan the structure of the Nganjuk Regional General Hospital Building. The planning carried out includes the calculation of structural dimensions, calculation of loading, and calculation of reinforcement which were analyzed using SAP2000 software. The calculation results show that the dimensions of the columns used are 40/40 and 15/15 for practical columns, the dimensions of the beams are 35/50 and 30/40 and 25/35. Reinforcement on beams obtained diameters of 16 and 10 mm, reinforcement on columns obtained diameters of 19 and 10 mm, while on plates obtained diameters of 10 mm. Thus, these results can be used as a reference in the implementation of the construction of the Nganjuk Regional General Hospital Building.

CURRENT STATUS AND PROSPECTS OF DEVELOPMENT IN UKRAINE OF THE ARCHITECTURE OF SHELTERS FOR PEOPLE SUFFERED FROM DOMESTIC VIOLENCE

The article analyses domestic experience in the design and construction of shelters for domestic violence victims and the possibility of new construction. The directors of Ukrainian shelters and hotline managers were interviewed. The existing shelters for mothers and children were analysed, the main architectural and planning features were determined. Domestic and foreign scientific works were analysed. The research topic is relevant due to the social need of shelters for domestic violence victims. Currently, such institutions are to be established as more and more cases of domestic violence are being recorded every day, therefore the shelter can become the «island» for protection, safety, rehabilitation and assistance. A modern shelter for people suffering from domestic violence is a conceptually new type of social housing. The main difference between shelters and crisis rooms is the time of stay, comfort and security levels. The time spent in crisis rooms is 7-10 days, in shelters - 1-3 months, if necessary, it can be 6 months. Crisis rooms are equipped with individual accommodation for each person or family in a difficult life situation and look like mini-apartments with their own bedroom, small kitchen and bathroom. In shelters, most often, it is one common room for two people, a shared kitchen-dining room and a bathroom with shower. These differences significantly affect the architectural and planning organization of each institution. The study revealed that shelters in Ukraine are usually part of other social structures, only a few operate as separate institutions. Most often they occupy one wing of a one-storey house, or one of the floors of a two-storey building. Shelters provide assistance with housing, food, recreational sites for children, legal, psychological, rehabilitative and, if necessary, medical assistance. The vast majority of shelters are located in the central part of the city. The purpose of this study is to identify the best features in the architectural and planning organization of such institutions in Ukraine.

Reduction of magnetic field level in residential old buildings from overhead power lines by means of active screening

Aim. Reduction of the magnetic field induction to the level of modern sanitary standards by means of active screening in residential old buildings which are located near existing typical overhead power lines are considered. Active shielding of the magnetic field inside a single-storey and multi-storey building is considered. During the design the number, configurations, spatial arrangement of the shielding windings, as well as the currents in the shielding windings were determined. Methodology. The design problem for the system of active shielding reduced to solving the minimax vector optimization problem. The vector of objective function in this minimax problem is calculated based on Biot-Savart's law. The solution of this problem is based on multi-agent optimization algorithms. Results. The results of theoretical and experimental studies of the systems of active shielding of the magnetic field generated by various overhead power lines inside a single and multi-storey building are presented. Originality. The possibility of reducing the induction of the initial magnetic field inside the shielded space to the level of sanitary standards is shown. Practical value. From the point of view of the practical implementation for a reasonable choice of the number and spatial arrangement of shielding windings of systems for active shielding of the magnetic field generated by various overhead power lines inside residential buildings of different storey’s are given.

CALCULATION OF A MONOLITHIC COLUMN FOUNDATION FOR A REINFORCED CONCRETE COLUMN OF A MULTI-STOREY BUILDING IN LVIV

Problem statement. In modern construction of residential and commercial buildings, bridges and other structures, columns are often the main load-bearing elements. Different in the way they are manufactured and in their characteristics, these building elements serve as the basis of the framework on which all other building structures are placed. However, in order to have a strong, durable and, most importantly, correct construction of the whole structure, the columns should be installed with minimum deviations from the design values. This is why a great deal of attention is paid to the foundations in the design and implementation of the project. The purpose of the article is to develop a calculation of a monolithic column foundation for a reinforced concrete column of a multi-storey building in Lviv based on theoretical research. The design is based on theoretical studies and is based on the design of a monolithic column foundation for a multi-storey building in Lvov, taking into account the dimensions of the foundation, the soil characteristics, the self-weight of the foundation and the longitudinal reinforcement coefficient. Analysis of publications. Studying not only foreign, but also domestic current theoretical developments and practical experience will allow the objective to be achieved. There are examples among European countries that largely meet the current requirements. Results of the study. The most common soils in Lviv are chernozem, eluvial and peat-bog soils. The climate in Lviv is moderately continental with mild winters and warm summers. With these data, the dimensions of the monolithic columnar foundation for a multi-storey building are calculated and its reinforcement is determined. The strength of the monolithic columnar foundation for the reinforced concrete column of the multi-storey building is tested for the punching strength. Based on the results of the calculations, it is determined that the foundation is sufficiently strong under the column.Conclusions. In this article, the characteristics of soils and climatic conditions of the construction area in the city of Lviv were investigated. The dimensions of the foundation's underside, all dimensions of the foundation and the pressure on the ground under the underside from the design load were calculated. The reinforcement area of the foundation footing was selected and the strength of the foundation was tested for push-through.