PT9962U - STRUCTURAL MODULES OF SHIP COVERAGE SUPPORT - Google Patents

Description

DESCRIPTION " STRUCTURAL MODULES OF SHIP COVERAGE SUPPORT " The structure of the roofs of pavilions and large naves is constituted by assas (an angle formed by two bars that move away inferiorly) and mothers (horizontal beams on which the rods are based) laying the plated or other coating on the mothers.

The mothers that are currently used depend on the gap between the asses. However, the conventional system involves the use of tabs welded to the legs, where the mothers are tightened.

This system has a series of drawbacks, where there are internal ridges and tie rods, as well as the welded tabs on the legs, plates of enormous thickness and weight, although we see it applied in general sports pavilions, exhibition halls or other large spaces covered. The workmanship is immense and costly, the components only with scaffolding or huge cranes can be placed.

Some of the primary objectives in creating a substitute system - but more effective - will be reinforced stiffness of the gaps, better accessibility for assembly, simplification of disassembly, possibility of modular addition, ease of transport (how many times beams and tie rods require special transport and automobile traffic conditioning ...) storage facility and much less manpower. In short, and seen from the economic point of view, a significant reduction of costs.

With the proposed system, which will be claimed, it is intended to eliminate internal ridges, tabs, tie rods, decrease the thickness of the sheet (or other substitute) to be used, reducing labor costs, transportation and storage. The system, here proposed, is part of a piece of metal or other material of compatible structural rigidity which can rest on the beams (1) having a possibility of overlap (6) by successive coupling of segments, whereby the immobilization is ensured by points (3) which, existing along the segment, allow a variable juxtaposition, thus allowing the creation of variable arc gaps.

In this way, only the abutments 5 and the support beams 1 will constitute rigid elements of the structure. If the space is of high dimensions, the beams will be joined (4) by suitable clamping mechanisms. The same restriction does not apply to the modular structures of the claimed system which, apart from the inner risers and ridges, can be adapted to very variable surfaces and even applied to very large spans. 2/4

To demonstrate its applicability, suffice it to say that a span of 5 meters currently, and by standard convention of resistance of materials, needs a mother of 140 mm of height by 2 mm of thickness. This section would increase exponentially with increasing vain. Now we know that either a sports hall, an exhibition hall or another large covered structure occupies a few hundred and often thousands of square meters.

However, in the proposed system the section of parts is constant. To increase the span, simply increase the overlap (6) which is performed as a function of the drilling (3) that exists along the segment of the modular structure.

Thus, the equation between the weight of the materials and their strength is altered: if the section of the mothers (and therefore their weight) depended on the size of the span, now the section of the parts becomes constant independently of the span. And, because the weight is drastically reduced, the length of the modules between the beams can be lengthened.

On the other hand, the proposed system allows the tabs on the legs to be removed, which facilitates transportation, storage and assembly.

Looking at the existing systems, in lateral males, it is necessary to apply a beam to support them, as well as tabs and tie rods. 3/4

However, the proposed system allows the modules to be bolted directly to the abutments and allow their intersection and overlapping in each other (6). In this way a structure can be successively increased by adding sections that are juxtaposed through the drilling zone (3) which is predetermined.

The advantages of the proposed system in industrial applications result from the possibility of modular use in very variable sections in ships or other large structures using much lighter adaptive structures which ensure rigidity and structural stability, heavy machinery in its placement and consequent reduction of costs and labor.

Porto, March 24, 2004 4/4

Claims (4)

Structural modules for covering ships cover characterized by allowing multiple and successive coupling of segments (2), the junction (6) being determined as a function of the area of the nave and the desired distance between beams or ashes, as a result of hurricanes (3) on the flanges, which allows them to be applied in very variable arc gaps without the need for restraints, risers and tabs. Structural modules for covering ships, according to the preceding claim, characterized in that they start from segments which, although of smaller section than any beam or ass, having a hurricane along their entire course (1), allow the readjustment according to the size of the span and the area to be covered. Structural modules of covering of ships, according to the previous claims, characterized in that they can be screwed directly into the beams and beams (6), allowing crossings and overlapping segments of variable course, increasing or decreasing the area covered by simple displacement of the fixation in the respective hurricane (3). 1/2 Structural modules for covering ships according to previous claims, characterized in that they allow the fixed and heavy elements in a structure comprising a large span to be exclusively the beams (1) and the pillars (5) , which dispenses machinery and heavy structures to cover a structure, maintenance or replacement. 2/2