SU573535A1

SU573535A1 - Foundation of seismic-proof structure

Info

Publication number: SU573535A1
Application number: SU7402057288A
Authority: SU
Inventors: Гелий Иннокентьевич Соболев; Юрий Георгиевич Чернышев
Original assignee: Новосибирский филиал Всесоюзного научно-исследовательского института транспортного строительства
Priority date: 1974-08-29
Filing date: 1974-08-29
Publication date: 1977-09-25

Description

Изобретение относитс к области антисейсмического строительства и может быть использовано дл снижении горизонтального сейсмического воздействи на здани и сооружени .The invention relates to the field of anti-seismic construction and can be used to reduce the horizontal seismic impact on buildings and structures.

Известен фундамент сеймосгойкого здани , содержащий опорные части и размещенные между ними элементы подвижной св зи, выполненные в виде элипсоида вращени из твердого материала , например, армоцемента l . В этом фундаменте осуществл етс контакт подвижных элементов с опорными част ми фундамента на небольшой площади сн ти в течение всего времени эксплуатации сооружени , что вызывае по вление высоких напр жений в зоне контакта и создает неблагопри тные услови работы конструкции. Кроме того , конструкци фундамента сложна в изготовлении и при монтаже.The well-known foundation of a seismic-safe building contains supporting parts and mobile communication elements placed between them, made in the form of a rotating ellipsoid made of a hard material, for example, reinforcement l. In this foundation, mobile elements are in contact with the supporting parts of the foundation in a small area of removal during the entire period of operation of the structure, which causes the appearance of high stresses in the contact zone and creates unfavorable conditions for the operation of the structure. In addition, the foundation structure is difficult to manufacture and install.

Известен также фундамент сеймостойкого здани , включающий опорные части и размещенные между ним: элементы подвижной св зи, установленные в образованных в опорных част х углублени х 2 .The foundation of a seismic resistant building is also known, including supporting parts and located between them: mobile communication elements installed in recesses 2 formed in the supporting parts.

Недостатком этого фундамента вл етс контакт подвижных элементов с опорными част ми на небольшой плое .The disadvantage of this foundation is the contact of moving parts with supporting parts on a small floor.

щади и сложность при изготозлени;; и монтаже.sparing and difficulty in making ;; and installation.

Цель предлагаемого изобретенк) - увеличение площади передачи нагрузкиThe purpose of the proposed inventive) - to increase the area of transmission

на опорные части и упрощение кснстру:; ци и ф у к л а: -;е н т а .on supporting parts and simplifying the procedure :; chi and f u k la: -; e nt a.

Достигаетс это тем, что в фундаменте сеймостойкого здани ,, зк.гиоча Ю1дем опорные части и размещенные This is achieved by the fact that in the foundation of the earthquake-proof building, the supporting parts and the housed

ду ними элементы подвижной св зи, установленные в образованных в опорных част х углублени х, каждый злемект подвижной св зи выполнен в виде цилиндра , имеющего по крайней iviepa,They include mobile communication elements mounted in recesses formed in supporting parts, each mobile communication element is made in the form of a cylinder having at least iviepa,

один плоский торец.one flat butt.

На фиг.1 изображен фундшдент D состо нии поко ; на то же, в момент сейсмического удара.Fig. 1 shows the D resting state; at the same time, at the time of the seismic shock.

Описываемый фундамент включает нижнюю опорную часть 1, верхнюю опорную часть 2, между которыми з образованных в опорных част х 1 и 2 углублени х 3 размещен элемент 4 подпи);The described foundation includes the lower support part 1, the upper support part 2, between which the depressions 3 formed in the supporting parts 1 and 2 of the recesses 3 are placed under the signatures);

ной св зи, выполненный з виде цилиндра , имеющего, по крайней мере, плоский торец 5.This connection is made in the form of a cylinder having at least a flat face 5.

Claims

The recesses 3 in the support 1 and 2 may have a trapezoidal cross-section, more oscosan: -: a;: just facing towards the adjacent support part. The shape and dimensions of the recess 3 in the support parts allow the mobile communication element to move out of the vertical position and limit the amplitude of its oscillations. The angle of inclination of the walls of the recess is chosen so that the exit of the mobile communication element is excluded from a state of stable equilibrium with horizontal influences / exceeding the calculated 31. out of the vertical position, but remains in a state of stable equilibrium, and returns to the vertical position under the action of the elastic forces of the ground and the moment L "Qcosd (d-hig-ci,) where is the load of the cylinder with flat ends t d - cylinder diameter; “П - height of the cylinder tg- oL - angle of inclination of the cylinder during seismic impact. the upper supporting part of the foundation, together with the building during this impact, maintains immobility due to the mass inertia of its mass. parts of the foundation. and several cylinders with flat ends, having a relatively small ratio dfh. The cylinders can have metal walls and concrete filling, the supporting parts - reinforced concrete, the walls of the recesses in the supporting parts - metal. The simplicity of the solution ensures the reduction of labor costs during the installation of structures and creates favorable conditions for the operation of the foundation at the time of seismic effects and during the operation period. The invention The foundation of a earthquake-resistant building, comprising supporting parts and mobile communication elements placed between them, installed in recesses formed in the supporting parts, about 20 mm in order to increase the area of load transfer to the supporting parts and the simplification of the foundation structure; each mobile communication element is made in the form of a cylinder having at least one flat end. Sources of information taken into account in the examination: 1. USSR Copyright Certificate 344094, cl. E 04 H 9/02, 1970.

2. Application 1833744/33 cl. E 01 H 9/02, 1972, according to which the decision to issue an author's certificate was made.

1

xV

GT

FIG. 2