CN2579942Y

CN2579942Y - Steel plate bridge

Info

Publication number: CN2579942Y
Application number: CN 02258600
Authority: CN
Inventors: 苟明康; 梁川; 吴韶; 陶莉; 邹煜; 林德群; 王彪
Original assignee: 63983 Troops of PLA
Current assignee: 63983 Troops of PLA
Priority date: 2002-11-15
Filing date: 2002-11-15
Publication date: 2003-10-15
Anticipated expiration: 2012-11-15

Abstract

The utility model discloses a steel plate bridge. The utility model is composed of an assembly of a plurality of unit bridge plates and a cross beam, wherein a top flange surface of the cross beam is longitudinally provided with a plurality of dummy clubs, and the space between the adjacent two dummy clubs is adapt to the width of each unit bridge plate. Each dummy club is provided with a T-shaped groove, and the inner of the T-shaped groove is provided with a screw bolt which is used for fixing and can slide along the T-shaped groove. The screw bolt of which head is positioned in the T-shaped groove is arranged inversely. In order to form fixing plates in four corners of each unit bridge plate, both sides of the four corners of the unit bridge plate are provided with cut away layers. Fixing plates of the adjacent four unit bridge plates are aligned and are arranged on one dummy club of the cross beam, and by the aid of a pressing plate and nuts, the fixing plates and the cross beam are fixed together. A pinhole and a shear pin are respectively arranged on both sides of each unit bridge plate, and the shear pin of the adjacent sides of the adjacent two unit bridge plates is inserted into the corresponding pinhole of the adjacent sides of the adjacent two unit bridge plates. The utility model has the advantages of convenient fixation and high bearing capacity. The utility model is applicable to assembly type highway steel bridges.

Description

A kind of Steel plate bridge

Technical field

The utility model relates to a kind of bridge plate.Be dismountable Steel plate bridge specifically, be applicable on the assembly type steel bridge on highway.

Background technology

At present, used bridge plate all is dismountable Steel plate bridge on the assembly type steel bridge on highway.This bridge plate is assembled with some unit bridge plate, and its joining method is that the both sides with some unit bridge plate ride on the crossbeam, and being connected with securing member forms.Because the tie point of this bridge plate is only at the two ends of unit bridge plate, bridge floor lacks globality, and the load of monolithic bridge plate is bigger.Therefore, the supporting capacity of this bridge plate is not strong.When assembling owing to this bridge plate again, need processing screw hole on crossbeam, and screw can weaken the intensity of crossbeam, make the supporting capacity of crossbeam reduce.

Summary of the invention

The purpose of this utility model is to provide a kind of Steel plate bridge.This Steel plate bridge, convenient fixing, supporting capacity is strong.

Above-mentioned purpose of the present utility model is realized by following technical solution:

Steel plate bridge of the present utility model, assembled by some unit bridge plate and crossbeam.Its design feature is that the top flange surface longitudinal of crossbeam has some boss, and the every two adjacent boss spacings and the width of unit bridge plate adapt.The inverted T-shape groove is all arranged on each boss, and having in the inverted T-shape groove can be along the fixed-use bolt of this T font groove slip, and this bolt is is inverted the shape placement, and its head is in the T font groove.Four jiaos of two sides of unit bridge plate cut layer, so that become fixed head at its quadrangle.The fixed head of adjacent four module unit bridge plates is the alignment shape and places on the boss of crossbeam, and is fixed together by means of pressing plate and nut and crossbeam.There are pin-and-hole and shear pin in the both sides of unit bridge plate, and the shear pin on the adjacent two unit bridge plate adjacent sides inserts in the corresponding pin-and-hole.

Adopt such scheme, have the following advantages:

Because there is boss on the surface, top flange of crossbeam, and the inverted T-shape groove is arranged on the boss, in the inverted T-shape groove bolt is arranged; Four jiaos of two sides of unit bridge plate cut layer, have become fixed head at its quadrangle.The fixed head of adjacent four module unit bridge plates is the alignment shape and places on the boss of crossbeam, and is fixed together by means of pressing plate and nut and crossbeam.The shared harness fastener in an angle of four module unit bridge plates, and do not need processing screw hole on crossbeam, thus improved the intensity of crossbeam.

Because there are pin-and-hole and shear pin in the both sides of unit bridge plate, the shear pin on the adjacent two unit bridge plate adjacent sides inserts in the corresponding pin-and-hole again.Thereby make polylith unit bridge plate form an integral body, energy transmitted load between the unit bridge plate, polylith unit bridge plate carries jointly, and bridge plate supporting capacity of the present utility model is strengthened greatly.

Description of drawings

Fig. 1 is a Steel plate bridge schematic diagram of the present utility model;

Fig. 2 is the I place partial enlarged drawing of Fig. 1;

Fig. 3 is the crossbeam cross-sectional schematic;

Fig. 4 is that the A of Fig. 3 is to schematic diagram;

Fig. 5 is the A-A cross-sectional schematic of the Fig. 2 through having amplified;

Fig. 6 is the B-B cross-sectional schematic of the Fig. 2 through having amplified.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, Steel plate bridge of the present utility model is assembled by some unit bridge plate 1 and crossbeam 7.Unit bridge plate 1 wherein is a rectangle, and its two sides of four jiaos cuts one deck accordingly, so that keep the intermediate layer as fixed head 9 at four jiaos.All be processed with a pin-and-hole and a shear pin 2 on the two long limits of every module unit bridge plate 1, in the two adjacent module unit bridge plates 1, the shear pin 2 of a module unit bridge plate 1 inserts in the pin-and-hole of another module unit bridge plate 1.Be formed with some boss 6 on surface, the top flange longitudinal direction of crossbeam 7, adjacent two boss, 6 spacings and the width of unit bridge plate 1 are complementary.Be processed with inverted T-shape groove 8 on the said boss 6, this groove is vertical with the length direction of crossbeam 7.All be placed with a bolt 3 in each inverted T-shape groove 8, the head of bolt 3 is in the inverted T-shape groove 8.Said bolt 3 heads are regular hexagon, and the width between two limits that parallel in this regular hexagon and the width of inverted T-shape groove 8 bottoms are complementary, and do not rotate after making bolt 3 heads snap in inverted T-shape groove 8.The fixed head 9 that four adjacent module unit bridge plates are 1 four jiaos places on the boss 6 of crossbeam 7, and is fixed together with crossbeam 7 by means of pressing plate 4 and nut 5.

For the bolt 3 after the assembling is not protruded at the bridge plate upper surface, require the length of bolt 3 to be less than or equal to the thickness of unit bridge plate 1.

For the nut 5 after the assembling is not protruded at the bridge plate upper surface, require 1 four jiaos of unit bridge plates above cut the thickness sum that layer thickness is equal to or greater than pressing plate 4 and nut 5.

For ease of assembling, the layer thickness that cuts below 1 four jiaos of the unit bridge plates should be more than or equal to the height of boss 6.

Claims

1. a Steel plate bridge is assembled by some unit bridge plates (1) and crossbeam (7); The top flange surface longitudinal that it is characterized in that crossbeam (7) has some boss (6), and every adjacent two boss (6) spacing and the width of unit bridge plate (1) adapt; Inverted T-shape groove (8) is all arranged on each boss (6), and having in the inverted T-shape groove (8) can be along the fixed-use bolt (3) of this T font groove slip, and this bolt is is inverted the shape placement, and its head is in the inverted T-shape groove (8); Four jiaos of two sides of unit bridge plate (1) cut layer, so that become fixed head (9) at its quadrangle; The fixed head (9) of adjacent four module unit bridge plates (1) is the alignment shape and places on the boss (6) of crossbeam (7), and is fixed together with crossbeam (7) by means of pressing plate (4) and nut (5); There are pin-and-hole and shear pin (2) in the both sides of unit bridge plate (1), and the shear pin (2) on adjacent two unit bridge plate (1) adjacent sides inserts in the corresponding pin-and-hole.

2. Steel plate bridge according to claim 1 is characterized in that the length of bolt (3) is equal to or less than the thickness of unit bridge plate (1).

3. Steel plate bridge according to claim 1 is characterized in that the thickness sum that layer thickness is equal to or greater than pressing plate (4) and nut (5) that cuts above (1) four jiao of the unit bridge plate.

4. Steel plate bridge according to claim 3 is characterized in that cutting layer thickness more than or equal to the boss (6) on the crossbeam (7) highly below (1) four jiao of the unit bridge plate.

5. according to claim 1,2,3 or 4 described Steel plate bridges, it is characterized in that bolt (3) head is a hexagon, inverted T-shape groove (8) bottom width of width and boss (6) adapts between the hexagon both sides that parallel.