CN201546229U

CN201546229U - Multidirectional stressed plastic stretching grating

Info

Publication number: CN201546229U
Application number: CN2009202401260U
Authority: CN
Inventors: 刘军; 范雯丽
Original assignee: 李娟�
Current assignee: TAI'AN MODERN PLASTIC CO Ltd
Priority date: 2009-10-23
Filing date: 2009-10-23
Publication date: 2010-08-11
Anticipated expiration: 2019-10-23

Abstract

The utility model discloses a multidirectional stressed plastic stretching grating which is used as the strengthening materials in civil engineering or as protection and isolation materials in constructional engineering. The plastic stretching grating is formed by the connection of a plurality of nodes and a plurality of reinforcement strips; the nodes and the reinforcement strips are connected to form a plurality of rectangular units; the inside of each rectangular unit is divided into four triangles by crossed diagonals; the nodes are positioned at the four vertexes of each rectangular unit and at the intersection point of the diagonals; the reinforcement strips are positioned on the edges of the four triangles inside each rectangular unit; and two adjacent rectangular units share two nodes and one reinforcement strip. The plastic stretching grating can bear multidirectional loads, reduce the possibility that the nodes are borne and damaged, and has more reasonable stress state. Furthermore, the integral structural intensity of the plastic stretching grating is improved.

Description

A kind of multidirectional stressed plastic tensile grate

Technical field

The utility model relates to a kind of multidirectional stressed plastic tensile grate, be used for civil engineering as the reinforcement reinforcement material or be used for construction work as the protection and isolated material.

Background technology

Plastic tensile grate has the multiple mode of production, the employing plastic strip that has is welded into groined type or square or rectangular configuration, but its node strength is difficult to satisfy construction requirement, often do not have the effect that reinforcement is reinforced, employing polyester fiber that has or glass fiber are through being woven into groined type or rectangular configuration, in the structure of its surface-coated organic protection layer, the node strength of this structure also is difficult to satisfy the needs of engineering to intensity then, especially is difficult to play integrally stiffened effect; The employing plastic plate that has is through going out the hole of the whole square or rectangle of arranging, the shape in its hole can be a various ways, as circular, oval, square, rectangle etc., through vertically, laterally progressively stretching or synchro-draw, thereby obtain groined type or mesh grille square, the rectangular opening shape, the grid that this grid forms compared with above-mentioned welding, braiding aspect supporting capacity has had good integrity, effect that node strength is high, has satisfied the requirement of engineering to bulk strength greatly.

But, in using, engineering finds, real load is often just in length and breadth to exerting pressure, and above-mentioned described all kinds of grids often can only provide the reinforcement and the support of both direction in length and breadth, will show great weakness for support from oblique load, they must be used for by the right angle shearing resistance of node transmitting and disperseing load, so node also is easy to be destroyed.

Summary of the invention

For solving the problems of the technologies described above, the utility model provides a kind of multidirectional stressed plastic tensile grate, can carry vertical, horizontal, oblique loading, and node is difficult for being torn destruction, and stress is more reasonable.

For achieving the above object, the technical scheme that the utility model adopted is as follows:

A kind of multidirectional stressed plastic tensile grate, connect to form by a plurality of nodes and many muscle bands, described node and muscle band are connected to form a plurality of rectangular elements, described rectangular element inside is divided into four triangles by the diagonal intersection point, node is positioned at four summits and the diagonal intersection point of described rectangular element, the muscle band is positioned at four leg-of-mutton limits of described rectangular element inside, shared two nodes and a muscle band between adjacent two rectangular elements.

The utility model is a monolithic devices net structure multi-direction, the interlaced formation of many muscle bands, the multipotency of each node connects eight muscle bands simultaneously, when a node bears the load of a plurality of directions such as vertical, horizontal, oblique simultaneously, many muscle bands of its connection can more effectively disperse load, thereby the probability that makes this node be subjected to tear failure reduces, its whole structural strength strengthens simultaneously, and stress is more reasonable.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a unit stress schematic diagram of traditional square grid;

Fig. 3 is a unit stress schematic diagram of the present utility model.

The specific embodiment:

Below in conjunction with the drawings and specific embodiments the utility model is described in detail:

As shown in Figure 1, this multidirectional stressed plastic tensile grate is connected to form by a plurality of nodes and many muscle bands, described node and muscle band are connected to form a plurality of rectangular elements, described rectangular element inside is divided into four triangles by the diagonal intersection point, node is positioned at four summits and the diagonal intersection point of described rectangular element, the muscle band is positioned at four leg-of-mutton limits of described rectangular element inside, shared two nodes and a muscle band between adjacent two rectangular elements.

For traditional square grid, when bearing, need transmit to the muscle band of both direction respectively with 90 ° of angles by node, and the moment of torsion that this node bears can be very big from oblique load, just there is the possibility of tearing more greatly in node; As shown in Figure 2, be subjected at the same time from oblique and directly to two identical load f the time, its pairing muscle band except that bear from directly to pulling force f, also to bear the component F of inclined load on this direction, its f+F that makes a concerted effort is about straight to 170% of power f, and its node is torn destruction easily.

The utility model can be directly when bearing oblique load along oblique and 45 ° of angles respectively to the direction transmission more than three, more effectively disperse load, and angle is smaller, be not easy to produce node and tear phenomenon; And as shown in Figure 3, bear at the same time from oblique and directly to two identical load the time, its pairing muscle band only need bear the pulling force f that straight line passes over, its node does not have the transfer torque of increase, be not easy to produce node and tear phenomenon, significantly reduced the probability of destruction of a node, its force structure is more reasonable.

Claims

1. multidirectional stressed plastic tensile grate, connect to form by a plurality of nodes and many muscle bands, it is characterized in that, described node and muscle band are connected to form a plurality of rectangular elements, described rectangular element inside is divided into four triangles by the diagonal intersection point, node is positioned at four summits and the diagonal intersection point of described rectangular element, and the muscle band is positioned at four leg-of-mutton limits of described rectangular element inside, shared two nodes and a muscle band between adjacent two rectangular elements.