The consideration of compliance of structural joints in calculation of large panel buildings

Anna Malakhova,Daria Davletbaeva,A Volkov,A Pustovgar,T Sultanov,A Adamtsevich

doi:10.1051/e3sconf/20199704010

Anna Malakhova, Daria Davletbaeva + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/20199704010

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Abstract

The article presents and analyzes the design solutions of horizontal and vertical joints, as well as methods for determining the coefficient of compliance joints. It also presents the numerical determination of the coefficients of compliance of the horizontal mortar joint in accordance with the standards for the design of large-panel buildings. It is shown that the compliance of the joint on the embedded parts consists of the compliance of the connecting element, embedded parts of the wall panels, namely the metal plate and reinforcing bars of the anchors, as well as the compliance of the welds. In this case, the joint operates in a complex stress-strain state. It is noted that the most difficult is to determine the compliance of embedded parts. Three calculation methods have been developed for the numerical determination of the compliance coefficients of anchor bars under the action of tension (compression), bending moment and shear forces on the embedded part. The deformation of the welds was defined in MGSU in the framework of the experimental research of the work of the vertical seam with embedded parts. The article presents a graph of the deformation in the weld on the applied vertical load on the test piece.

Highlights

The article presents and analyzes the design solutions of horizontal and vertical joints, as well as methods for determining the coefficient of compliance joints
Large-panel housing construction by the nineties of the last century becomes the main type of domestic housing construction, which was facilitated by the General orientation of the construction industry to the use of precast concrete structures with their subsequent unification and standardization, with the creation of construction catalogs and design of standard series of large-panel residential buildings, as well as public buildings, such as hotels, camp sites, preschool institutions, schools, etc
It should be noted that the popularity of mating wall panels on embedded parts in comparison with the keyed connection is associated with the absence of the need for installation temporary connections, as well as to make breaks in the work to ensure the achievement of concrete joints of the required strength

Summary

Introduction

The article presents and analyzes the design solutions of horizontal and vertical joints, as well as methods for determining the coefficient of compliance joints. There are many structural solutions for horizontal and vertical joints of reinforced concrete elements of large-panel buildings.

Results

Conclusion