SU1182121A1 - Earthquake-proof building - Google Patents

Abstract

SEISMIC RESISTANT BUILDING, divided by expansion joints into sections, with a foundation under each section, characterized in that, in order to increase the effectiveness of damping seismic vibrations, the foundation of each section is made of three supporting blocks placed in planes at the vertices of an equilateral triangular contour, one from the sides of which is oriented along the building, and cantilever each three blocks of three transverse beams that are rigidly connected to each other by a longitudinal beam, with two transverse beams resting On the supporting blocks, placed on the side of the triangular contour oriented along the building, are made with a rigid-, (O bone, third rigidity of the third transverse beam two times.

Description

1 The invention relates to the construction, namely, to structures of earthquake-resistant buildings. . The aim of the invention is to increase the effect of damping seismic vibrations. FIG. 1 shows the foundation of an earthquake-resistant building in axonometry in FIG. 2 — a building consisting of tr sections, a general view; in fig. 3 - cut A-A in FIG. 2. Earthquake-resistant building 1, divided by deformed seams 2 into sections “0 yt on the foundation.”, Consisting of three supporting blocks 3, located in the plan at the vertices of a right-sided triangular contour, one of the sides of which is oriented along building 1, and cantilever respectively supporting each block 3 of three transverse beams 4 and 5 rigidly interconnected by a longitudinal beam 6, and two transverse beams 4 resting on supporting blocks 3 placed on the orientation of the side of the triangular contour along the building t bone, less stiffness of the third transverse beam 5 twice. The transverse beams 4 and 5 above the support blocks 3 have thickened support elements 7, and the support 3 can be iproduced on the pile 8. Underfound elements 9 are installed between the building 1 and the foundation. The seismic foundation works as follows. The vertical load from the overlying floors of building 1 is transmitted to elements 9. The latter distribute the load between the transverse beams 4 and 5 on a scale of 1: 2, which, according to the method of reducing the masses, can lead to concentrated masses (specification of the degrees of freedom). Under the action of the load of the console of the beams 4 and 5, an equal deflection is obtained, and the maximum bending moment is perceived by the supporting elements 7, blocks 3, and its own 8. The corresponding moment value is transmitted to the longitudinal beam 6 as a torque, the plot of which has ordinates equal in size and different in sign. Under the action of seismic shocks, horizontal and vertical forces arise, which are perceived by the perpendicular walls of building 1. Damping of horizontal and vertical movements is provided by elastic consoles of transverse beams 4 and 5, which, working together, swing together with the longitudinal beam 6.

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50d / e.J 5

Claims (1)

SEISMICALLY BUILDING, divided by expansion joints into sections, with a foundation under each section, characterized in that in order to increase the efficiency of damping seismic vibrations, the foundation of each section is made of three support blocks placed in plan at the vertices of an equilateral triangular contour, one of the sides which is oriented along the building, and cantileverly supported on each block of three transverse beams rigidly interconnected by a longitudinal beam, and two transverse beams supported on op polar blocks located on the building side oriented along the triangular contour configured rigid, bone, lesser rigidity third transverse beams twice. figs? »82121