ARBAT enables you to check the load-bearing capacity and to select the reinforcement for concrete and reinforced concrete structural members, to calculate the deflections in reinforced concrete beams, to check the local strength of reinforced concrete structural members (including inserts) in compliance with requirements of SNiP 2.03.01-84* “Concrete and Reinforced Concrete Structures” or SNiP 52-01-2003, SP 63.13330, DBN B.2.6-98:2009, STR 2.05.05:2005, KMK 2.03.01-96, EN 1992-1-1. The analysis is performed taking into account the ultimate and serviceability limit states for the design combinations of forces (DCF) selected automatically depending on the specified design loads in compliance with the corresponding code «Loads and Actions».
The selection of reinforcement and the check are performed for reinforced concrete structures from heavy-weight, fine-grained and lightweight concrete with the various reinforcement steel.
Moreover, ARBAT plays the role of a manual that provides data on the assortment and properties of reinforcement, characteristic and design values of the concrete strength, service factors for concrete, and allowable deflection limits.
Selection of Beam Reinforcement
This mode is used to select reinforcement in multi-span continuous beams of a constant cross-section (rectangular section, T-section or I-section) using the criteria of strength and crack resistance. Bending of the beam in one plane of loading is considered. It is assumed that the beam is not subjected to longitudinal forces and only the following force actions are taken into account:
М - bending moment;
Q - shear force.
The areas of upper and lower reinforcement in the segments, and the area and spacing of the bars of transverse reinforcement are obtained in the result of the analysis.
Selection of Single-Span Beam Reinforcement
This mode is used to select reinforcement in single-span beams of a constant cross-section (rectangular section, T-section or I-section) using the criteria of strength and crack resistance. Bending of the beam in one plane of loading is considered. It is assumed that the beam is not subjected to longitudinal forces and only the following force actions are taken into account:
М - bending moment;
Q - shear force.
The areas of upper and lower reinforcement in the segments, and the area and spacing of the bars of transverse reinforcement are obtained in the result of the analysis.
Selection of Column Reinforcement
This mode is used to select reinforcement in a column of a constant cross-section (rectangular section, T-section, I-section, ring, or round section) using the criteria of strength and crack resistance. The following force actions are taken into account:
N - longitudinal force;
М1 and М2 - moments in nodes;
Q - shear force.
The results of the analysis include the areas of symmetric and/or asymmetric longitudinal reinforcement, and the area and spacing of transverse reinforcement on the segments of the column.
Selection of Reinforcement in a Section
This mode enables to perform the selection of reinforcement according to the strength and crack resistance requirements. This mode is similar to those described above for the selection of reinforcement in structural members (beam, column, ...). The main difference is that the selection is based on the forces in a section.
Strength of RC Sections
This mode implements a function of determining the load-bearing capacity of any section available in the application depending on the arrangement, area and class of reinforcement, the class of concrete, the conditions of operation, and the allowable crack opening width.
In the general case, the analyses are performed for the action of a longitudinal force, bending moments, torque, and shear forces acting in the principal planes of inertia.
Beam Deflections
This mode enables to calculate the deflections at the bending of a multi-span beam under a given load. The deflections are calculated for a rectangular section, T-section or I-section in compliance with requirements of SNiP, SP, DBN, STR, KMK, ... . The curvature is determined taking into account cracks in the tension area.
Local Strength
The modes of this group enable to check the reinforced concrete structural members for the local compression, punching and tearing, and to perform the analysis of inserts, short cantilevers, and keys.
Interface
ARBAT functions under Windows operating environment. All the windows, dialog boxes and controls are fully consistent with this environment.
Help (Reference information)
The application is provided with a detailed help which includes descriptions of the user interface and conventions of using the application.