SU1283337A2 - Skeleton of earthquake-proof multistorey building - Google Patents

Abstract

The invention relates to seismic multi-storey buildings. The aim of the invention is to increase seismic resistance. In the frame cells, diagonal connections are placed, connected by a loop in the form of a ring. The contour is made of composite elements. The latter are installed with gaps between their ends. In the gaps are placed elastic elements connected to the components of high-strength bolts. The wall of the components has a variable section in height, which decreases from the attachment point to the attachment points of the elastic elements. 4 il.

Description

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The invention relates to the construction and is an improvement of the frame of an earthquake-resistant high-rise building according to the author. St. No. 754005.

The purpose of the invention is to increase the seismic resistance.

FIG. 1 schematically shows the proposed frame of an earthquake-resistant high-rise building; in fig. 2 - frame cell with additional connections to the contour; in fig. 3 shows the node I in FIG. one; in fig. 4 is a section A-A in FIG. 3

The skeleton of an earthquake-resistant multistory building contains columns 1 and crossbars 2, forming cells 3, and stirring diagonally in them 4, combined by a closed loop 5 located in the center of the cells 3 and rigidly attached to the connections 4. Closed loop 5 made in the form of an I-ring with a flat wall 6 and on the very 7 equal sections. The contour 5 is provided with elastic elements 8 and is made of composite elements 9 installed with a gap 10 between their ends. The elastic elements 8 are placed in the gaps 10 and connected to the component elements 9 by means of high-strength bolts. The attachment points of the elastic 8 and composite 9 elements are located on the vertical and horizontal axes of the contour 5. Wall 6 of the component elements 9 Has a variable section in height with a decrease in the latter from the attachment point of communication 4 to the attachment points of elastic elements 8. Section of columns 1, crossbars 2 and connections 4 are selected from the condition that the forces under seismic effects do not exceed their carrying capacity and their local and general stability.

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The device works as follows.

With seismic vibrations in the building in the direction of the diagonal connections 4, additional tensile and compression forces arise that are transmitted to the constituent elements 9 of the contours 5 interconnected by elastic elements 8. In each of the constituent elements 9 the contours 5 In connection with m 4, bending moments occur, the maximum possible in a given period of time. In the constituent elements 9 of the contours 5, a thrust occurs, which is transmitted to the elastic elements 8, made, for example, in the form of curvilinear bars. The latter begin to bend and operate in the plastic stage, lowering the energy of external seismic effects.

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Claims (1)

Invention Formula Frame seismic multi-storey building on author. St. No. 754005, characterized in that, in order to increase seismic resistance, the contour is provided with elastic elements and is made of composite elements installed with a gap between their ends, and the elastic elements are placed in the gaps and connected to the component elements by means of high-strength bolts, while the attachment points for elastic and component elements are located on the vertical and horizontal axes of the contour, and the wall of the component elements has a variable section in height with the latter decreasing from the attachment point of the communication to the attachment points of the control GIH elements. .З xl-xl Vuz.