Changes in SP 327.132555800.2017 «Exterior Walls with a Front Brick Layer. Rules for the Design, Operation and Repair»

The article shows the changes included in SP 327.132555800.2017 «Exterior walls with a front brick layer. Rules for the design, operation and repair». The changes are based on recent research. The changes relate to the design guidelines for the design of external multi-layer walls and their calculation methods. In the new version of SP, it is allowed to use the front layer of bricks with a thickness of 85 mm in two-layer walls. The reinforcement of masonry that works on tension under temperature and humidity influences is recommended to be performed with meshes of polymer composite materials along with ties between the layers of walls. Design instructions are given for the support of the front layer on steel brackets with adjustable console overhang and a number of others. Corrected the method of assigning the calculated temperatures of masonry, floor slabs for cold and warm periods of time, depending on the temperature of the outside air and solar radiation. A method is proposed for setting the maximum distances between vertical temperature joints, taking into account the strength of masonry reinforcement and the moment of formation of the first cracks using deformation diagrams.

М.K. ISHCHUK, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
O.K. GOGUA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
Kh.A. AIZYATULLIN, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.A. CHEREMNYKH, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Research Institute of Building Constructions named after V.A. Koucherenko (TSNIISK) JSC Research Center of Construction (6, 2-nd Institutskaya Street, Moscow, 109428, Russian Federation)

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