CN109440557A

CN109440557A - Precast slab is used in a kind of reinforcing of weakness road surface

Info

Publication number: CN109440557A
Application number: CN201811186310.1A
Authority: CN
Inventors: 林丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2019-03-08

Abstract

The present invention is a kind of weak road surface reinforcing precast slab, including concrete, lateral main reinforcement, lengthways main steel bar, single limb lacing wire, pre-buried hoisting ring device, shroud ring.The concrete slab is mainly made of concrete and reinforcing bar, and containing two layers of lateral main reinforcement, two layers of lengthways main steel bar, single limb lacing wire in the concrete, there are four the pre-buried hoisting ring devices for setting on concrete surface.The transverse direction main reinforcement is arranged along concrete slab long side is parallel to；The lengthways main steel bar is located at right above lateral main reinforcement along concrete short side arrangement is parallel to；The list limb lacing wire is placed vertically, and both ends are overlapped with upper layer and lower layer main reinforcement respectively；There are four the pre-buried hoisting ring devices, is separately positioned at the nearly corner location of concrete slab one side.The anchor ear is arranged at eight angles of concrete slab.

Description

Precast slab is used in a kind of reinforcing of weakness road surface

Technical field:

The present invention relates to road construction treatment of soft foundation fields more particularly to a kind of weak road surface to reinforce and use precast concrete Plate.

Background technique:

Bad nature of soil roadbed is one of most common problem during road and bridge construction.The general of bad nature of soil roadbed is led to Cross change fill out, the modes such as composite foundation are handled.But for road and bridge engineering sidewalk, changes and fill out, check basement process occupancy Duration is big compared with cost inputs such as long and people, material, machines.

Summary of the invention:

The technical problems to be solved by the present invention are: providing a kind of weak road surface reinforcing precast slab, Ke Yijian The clean bad nature of soil roadbed efficiently handled within the scope of sidewalk.

The present invention is achieved through the following technical solutions: a kind of weakness road surface reinforcing precast slab, including concrete, Lateral main reinforcement, lengthways main steel bar, single limb lacing wire, pre-buried hoisting ring device, shroud ring.The concrete slab is mainly by concrete and reinforcing bar group At containing two layers of lateral main reinforcement, two layers of lengthways main steel bar, single limb lacing wire in the concrete, in concrete surface There are four the pre-buried hoisting ring devices for upper setting.The transverse direction main reinforcement is arranged along concrete slab long side is parallel to；It is described longitudinal main Muscle is located at right above lateral main reinforcement along concrete short side arrangement is parallel to；The list limb lacing wire is placed vertically, and both ends are same as above respectively Lower two layers of main reinforcement overlap joint；There are four the pre-buried hoisting ring devices, is separately positioned at the nearly corner location of concrete slab one side.Institute Shroud ring is stated to be arranged at eight angles of concrete slab.

Further, the concrete is low-grade concrete, usually C30 concrete.

Further, the distance that the upper layer and lower layer transverse direction main reinforcement and lengthways main steel bar arrive concrete slab top and bottom respectively is greater than The diameter of 5 times of reinforcing bars.

Further, the lateral main reinforcement and the lengthways main steel bar are respectively the hot-rolled strip rib steel that diameter is not less than 14mm Muscle, and each layer of lengthways main steel bar and lateral main reinforcement arrangement spacing are uniform, and are mutually perpendicular to intersect；

Further, the hot rolled ribbed bars that single limb lacing wire is diameter 12mm, both ends are 90 ° of angle crotches, described curved Hook distinguishes on the outside of lengthways main steel bar described in lower layer and the close overlap joint in transverse direction main reinforcement outside described in upper layer.

Further, the shroud ring is L50 equal leg angle, is fixed on the angle of concrete slab by embedded bar, prefabricated It is easiest to receive damage in installation and use process at 8 angles of concrete slab, shroud ring can function well as protective effect.

Further, there are four pre-buried hoisting ring devices for precast slab setting, respectively close to the nearly quadrangle of concrete slab At position, as concrete slab installation, transport suspension centre.

Detailed description of the invention:

Fig. 1 is a kind of weak road surface reinforcing precast slab floor map of the present invention；

Fig. 2 is a kind of weak road surface reinforcing precast slab front face schematic diagram of the present invention；

Fig. 3 is a kind of weak road surface reinforcing precast slab transverse direction main reinforcement of the present invention, lengthways main steel bar, single limb lacing wire structure Make schematic diagram；

Fig. 4 is a kind of weak road surface reinforcing precast slab transverse direction main reinforcement of the present invention, lengthways main steel bar, single limb lacing wire phase To positional diagram；.

Fig. 5 is a kind of pre-buried hoisting ring device organigram of weak road surface reinforcing precast slab of the present invention；

Fig. 6 is a kind of weak road surface reinforcing precast slab shroud ring organigram of the present invention；

In figure: 1, concrete, 2, lateral main reinforcement, 3, lengthways main steel bar, 4, single limb lacing wire, 5, pre-buried hoisting ring device, 6, shroud ring, 61, L50 equal leg angle, 62, embedded bar.

Specific embodiment:

Shown in Fig. 1 to Fig. 6, a kind of weakness road surface, which reinforces, uses precast slab, including concrete 1, lateral main reinforcement 2, vertical To main reinforcement 3, single limb lacing wire 4, pre-buried hoisting ring device 5, shroud ring 6.The concrete slab is mainly made of concrete and reinforcing bar, described Containing two layers of lateral main reinforcement, two layers of lengthways main steel bar, single limb lacing wire in concrete, it is provided on concrete surface Four pre-buried hoisting ring devices.The transverse direction main reinforcement is arranged along concrete slab long side is parallel to；The lengthways main steel bar is along parallel It arranges, is located at right above lateral main reinforcement in concrete short side；The list limb lacing wire is placed vertically, and both ends are respectively the same as upper layer and lower layer master Muscle overlap joint；There are four the pre-buried hoisting ring devices, is separately positioned at the nearly corner location of concrete slab one side.The shroud ring is set It sets at eight angles of concrete slab.

Its specific mounting means is as follows:

Precast slab is prefabricated to be needed to be fabricated to square opening mold with bamboo slab rubber or steel plate, is then pacified in a mold The transverse direction main reinforcement, lengthways main steel bar, single limb lacing wire and pre-buried hoisting ring device, the casting concrete after reinforcement installation is completed mix Solidifying soil pours completion watering health, until concrete slab intensity meets construction requirement.

Precast slab is successful in back court, before prefabricated board installation, should be changed sidewalk and be filled out basis and carry out leveling compacting Processing, it is ensured that prefabricated board is laid with evenness of road surface and has certain bearing capacity；

Concrete prefabricated board is using crane by being installed in place in four pre-buried hoisting ring device liftings.Prefabricated board is installed in place After, it copes with it and is fixed, make its close proximity to ground.

It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, All of which are still within the scope of the technical scheme of the invention.

Claims

1. a kind of weakness road surface, which reinforces, uses precast slab, including concrete (1), lateral main reinforcement (2), lengthways main steel bar (3), list Limb lacing wire (4), pre-buried hoisting ring device (5), shroud ring (6).

2. a kind of weak road surface, which reinforces, according to claim 1 uses precast slab, it is characterised in that: comprising described in two layers Lateral main reinforcement (2) and the lengthways main steel bar (3), every layer of lateral main reinforcement (2) and the lengthways main steel bar (3) are respectively close to coagulation The upper and lower surfaces of native plate.

3. a kind of weak road surface, which reinforces, according to claim 1 uses precast slab, it is characterised in that: the transverse direction main reinforcement (2) along concrete slab longitudinal direction arrangement is parallel to, arrangement spacing is uniform；Lengthways main steel bar (3) edge is parallel to concrete slab Short side direction arrangement, arrangement spacing are uniform；The transverse direction main reinforcement (2) is on the lengthways main steel bar (3) with the lengthways main steel bar (3) It intersects vertically.

4. a kind of weak road surface, which reinforces, according to claim 1 uses precast slab, it is characterised in that: the list limb lacing wire Upper and lower ends are overlapped on respectively on the outside of lengthways main steel bar described in lower layer (3) and on the outside of transverse direction main reinforcement (2) described in upper layer.

5. a kind of weak road surface, which reinforces, according to claim 1 uses precast slab, it is characterised in that: every piece of concrete Native plate includes 4 pre-buried hoisting ring devices (5), is located at concrete slab upper surface, respectively close to four angles of concrete slab.

6. a kind of weak road surface, which reinforces, according to claim 1 uses precast slab, it is characterised in that: the shroud ring (6) It is located at four angles of concrete slab.