LU505013B1 - BRIDGE SUBSTRUCT DRAINAGE STRUCTURE - Google Patents

Abstract

The present invention relates to the field of sealing bridge substructure surfaces and specifically discloses a structure for securing drainage of the bridge substructure surface, comprising a drainage channel, a drainage layer and a sealing layer. The drainage channel is inclined and arranged along the sides of the bridge substructure surface. The drainage layer consists of a supporting grid structure, a lower pebble layer, a corrugated plastic layer, an upper pebble layer, a road surface, a collecting channel and partitions. The partitions are arranged vertically and evenly distributed along the longitudinal direction of the bridge substructure surface. Adjacent partitions form a drainage space in which the support grid structure is positioned. The bottom pebble layer is laid on the bottom of the supporting grid structure, the corrugated plastic layer is placed above the bottom pebble layer, the top pebble layer is over the corrugated plastic layer, and the road surface is above the top pebble layer. The collecting channel is arranged along the sides of the bridge substructure and is connected to all drainage spaces. The collection channel communicates with the drainage channel, with the upper part of the drainage channel protruding above the road surface and the lower part of the drainage channel being flush with the bottom of the collection channel. The waterproofing layer is located at the top of the road surface.

Description

Bridge substructure drainage structure LUS05013

Technical part

The present invention relates to the field of water-repellent bridge substructures and specifically discloses a bridge substructure drainage structure.

Technology in the background

In existing bridge constructions, a separate sealing of the bridge surface is usually required after the bridge body has been completed. This is often the case

Spray coating used as a water-repellent measure. However, this method has limited effectiveness and the life of the coating is relatively short. Existing technology typically involves placing drainage structures along roads and applying a water-repellent layer to drain surface water.

Typically, appropriate drainage and water-repellent structures are rarely installed on bridge surfaces. However, there will be drainage channels on the

Sides of the bridge surface to drain rainwater directly from the bridge.

The structure of the drainage channels is similar to that of the street drains on the sides of the streets.

In heavy rain there is a risk of blockages, especially due to dirt, stones,

Sand, leaves or rubbish brought by vehicles. A blockage of the

Drainage channels leads to water accumulation on the bridge. Long-term exposure to water on the bridge surface affects the stiffness and strength of the structure and therefore the stability of the bridge.

Content of the invention

Against this background, the aim of the present invention is to provide a structure for draining and sealing the bridge surface in order to achieve the technical

To solve the problem of waterproofing and drainage of the bridge surface.

To achieve this goal, the present invention offers the following technical solution:

A structure for drainage and sealing of the bridge surface, which is a

Drainage channel, a drainage layer and a waterproofing layer. The

Drainage channel is inclined and arranged along both sides of the bridge surface. The drainage layer consists of a supporting steel structure, a lower one

Pebble layer, a layer of randomly arranged plastic fibers, an upper one

pebble layer, a road surface, a drainage channel and insulation panels. The

Insulation plates are arranged vertically and evenly arranged along the longitudinal direction of the bridge surface, with one between adjacent insulation plates

Drainage space is formed. The supporting steel structure is arranged in the drainage space, the lower pebble layer is laid at the bottom of the supporting steel structure, the layer of randomly arranged plastic fibers is at the top of the lower pebble layer, the upper pebble layer is laid above the layer of randomly arranged plastic fibers, and the road surface is located above the upper layer of pebbles. The drainage channel is arranged along both sides of the bridge surface and is connected to all of them

Drainage rooms in connection. The drainage channel is connected to the drainage channel, with the upper part of the drainage channel protruding above the road surface and the lower part of the drainage channel being flush with the bottom of the drainage channel. The waterproofing layer is attached to the top of the road surface.

In the existing state of the art, the bridge surface in bridge constructions is treated directly with a sprayable sealing layer. In this solution, however, a&U505013

Drainage layer laid, which means that the design thickness and height of the bridge surface can be designed slightly smaller in advance and the drainage layer supplements the height. Although there is a waterproofing layer in this solution, there is an inevitable possibility that the waterproofing layer will be damaged during vehicle operation, resulting in a shortened service life and ultimately a reduction in waterproofing performance. If water accumulates on the bridge, the water can flow away through the drainage channel. However, if there is severe water accumulation,

Possibility that the water penetrates through the waterproofing layer and the road surface into the

Substructure penetrates. As the water passes through the upper layer of pebbles, it filters coarse

Impurities from the water. The randomly arranged plastic fiber layer that is in

Strip shape extends the flow path of the water and retains some of the sediments and small particles. The bottom layer of pebbles also serves as a filter. The filtered one

Water then flows out via the drainage channel and the drainage channel, which means that

The problem of clogging of the drainage channel with dirt and waste is reduced.

By using the drainage layer and waterproofing layer instead of the traditional waterproofing materials, a drainage and retention effect can be achieved, which means that the water does not remain on the bridge surface and the

Corrosion and the service life of the bridge surface can be extended. The entire bridge drainage and sealing ultimately serves to protect the bridge surface.

Optionally, a diverter plate can be installed in the middle of the drainage channel and is connected to the road surface. With this solution, the deflector plate can

Divide the drainage channel into two sections. The upper section is used for drainage above the road surface, while the lower section is used for drainage into the drainage channel below. This separation prevents water from escaping

Drainage channel flows into the drainage channel and causes a backflow.

Optionally, there are several filter openings on the deflector plate and below the

There is a layer of dirt on the drain plate that is connected to the filter openings. At the lower end of the dirt layer there is a discharge opening that is parallel to the

Deflector plate runs. In this solution, drainage takes place in the upper area of the

Drain plate over a longer period of time, allowing more waste and contaminants to accumulate. By installing filter openings and a layer of dirt, the waste from the water can pass through the filter openings into the layer of dirt. Even if the dirt layer is clogged, the water can still drain above the baffle plate, filtering out contaminants and preventing blockages.

Optionally, a collecting grid is installed in the drainage channel, which can prevent the lower layer of pebbles, the road surface and the upper layer of pebbles from migrating.

Optionally, the support frame can consist of a floor structure and support bars. The

The floor structure is firmly connected to the safety net and is fixed to the bridge base. The vertical support bars are attached to the floor structure, and there is a round support plate at their upper end. Through this concept, the support frame serves to...

To transfer the load of the roadway layer to the bridge base to ensure that the upper pebble layer, the lower pebble layer and the plastic layer are less stressed and do not suffer any damage.

Optionally, slots in which sliders are arranged are provided in the longitudinal direction of the deflection wall. At the lower end of the sliders there is a first cleaning plate that moves in the waste layer. By moving the sliders downwards the first

Cleaning plate pushes the waste materials out of the garbage layer and cleans the garbage layer.

Optionally, a second cleaning plate is rotatably attached to the upper end of the slides and can move in the space above the drain channel. The second

Cleaning plate can slide down together with the sliding pieces and clean the space above the baffle.

Optional is on the upper side of the sliders, which go towards the middle of the

Have a bridge base and a connecting bracket attached. Using a tool, the connecting bracket can be pulled back into its original position.

The working mechanism and benefits of this concept lie in:

In conventional technology, the bridge base is usually used directly as

Road surface is used and a waterproof coating is applied to it. By creating drainage channels on the sides, the entire drainage of the

Bridge surface reached. However, the waterproof layer consists of paint, which is inevitably damaged by traffic. As a result, the waterproof layer loses its functionality after a certain period of time and the bridge base is vulnerable to damage from rainwater. At the same time, the bridge base is a monolithic cast body, and the total thickness of the base is large. If the bridge base is cracked, even the non-damaged areas are at risk of erosion, and it is difficult to repair all eroded parts.

This concept involves lowering the height of the original bridge base and installing a drainage layer on the bridge base. The

Drainage layer includes a road surface that serves as a bridge deck, and the entire drainage layer protects the bridge base. The drainage layer consists of an upper layer of pebbles, a layer of randomly arranged plastic fibers and a lower layer of pebbles. All three layers filter impurities in the water flow, with the layer of plastic fibers also serving as a water drain and directing the water flow into the side drainage channels. After the drainage layer is good

Drainage is ensured, the erosion of the bridge base by the water flow is greatly reduced, which increases the life of the bridge base. In case of damage to the

Road surface of the drainage layer, it can be repaired by re-pouring concrete because the thickness of the road surface is limited, which makes repairs relatively easy and convenient. However, it must be noted that the road surface of the drainage layer is used as a traffic area for vehicles, and their

Compressive strength and load capacity are limited. Therefore, when selecting materials

Higher strength materials should be considered. At the same time, the load weight on the entire bridge is also of great importance.

Description of the attached drawings

Figure 1 shows a schematic representation of the structure according to one embodiment;

Image 2 is an enlargement of area A in image 1;

Figure 3 shows a schematic representation of the structure of the drainage layer; LU505013

Figure 4 shows a schematic representation of the structure of the drainage channel;

The following markings are present in the attached drawing: road surface 1, upper pebble layer 2, corrugated plastic layer 3, lower pebble layer 4, support grid 5, drainage channel 6, diversion board 7, dirt layer 8 sliding layer 9 first cleaning plate 10, second cleaning plate 11, floor grid 12, Support rod 13, support plate 14, bridge and substructure surface 15, collecting net 16, collecting channel 17, connecting element 18 filter openings 1 9.

Detailed description

The following is explained in more detail using a concrete exemplary embodiment:

Exemplary execution

A protection and drainage structure 15 for bridge bases, as in the

Shown in Figures 1-4, drainage channels include 6, a drainage layer and a

waterproofing layer.

The drainage channels 6 are inclined and arranged on the sides of the bridge base 15. The drainage channels 6 contain a deflection beam 7, which is made of concrete and is connected to the road surface 1 of the drainage layer. The deflection bar 7 is provided with several filter holes 19. There is one below the deflection bar 7

Dirt layer 8, which is connected to the filter holes 19. At the bottom of the

Dirt layer 8 there is a slag drain that runs parallel to the deflection bar 7.

The deflection bar 7 is provided with grooves along its length, into which sliders 9 are inserted. The sliders 9 are attached to the floor with a first cleaning plate 10, which slides in the dirt layer 8. At the upper end of the sliders 9 there is a second one

Cleaning plate 11 is rotatably attached, which is in the space above the deflection bar 7

Drainage channels 6 can slide. On one side of the sliders 9, which is the middle part of the

Facing the bridge base 15, a connecting element 18 is attached. To use the slides 9, the connecting element 18 can be hooked with an external device and then pushed or pulled to the first cleaning plate 10 and the second

Move cleaning plate 11.

The drainage layer includes a supporting steel structure 5, a lower pebble layer 4, a messy plastic layer 3, an upper pebble layer 2, a roadway layer 1,

Drainage channels 17 and partitions. The partitions are arranged vertically and evenly arranged along the longitudinal direction of the road surface 15 of the bridge, forming a drainage space between adjacent partitions. The

Partitions are made of concrete material. The sub-pebble layer 4 is on the bottom of the

Support steel structure 5 laid, the messy plastic layer 3 is above it

Lower pebble layer 4 is attached and the upper pebble layer 2 is above the messy one

Plastic layer 3 laid. The road layer 1 is arranged above the upper pebble layer 2. The messy plastic layer 3 has a rectangular shape and is hollow inside with openings on the sides. The structure of the messy plastic layer 3 can correspond to a messy plastic drainage pipe. The drainage channels 17 are on the

Sides of the road surface 15 of the bridge are attached and are with all

Drainage rooms connected. The drainage channels 17 are also connected to the messy plastic layer 3. The drainage channels 17 are with one

Network 16 equipped, which covers the sub-gravel layer 4, the road layer 1 and the

Upper pebble layer 2 can prevent it from sliding out. The supporting steel structure 5 is in defY509013

Arranged in drainage rooms and includes a floor frame 12 and support rods 13.

The floor frame 12 is firmly connected to the network 16 and attached to the road surface 15 of the bridge. The support rods 13 are vertically attached to the floor frame 12 and at their upper end a support plate 14 in a circular shape is attached.

The waterproof layer is created by spraying a waterproof material on the

Road layer 1 created.

During the actual implementation:

If rainwater accumulates on the roadway layer 1, it can initially flow off via the upper part of the drainage channel 6. If too much water has accumulated and the

If water penetrates roadway layer 1, the water first flows through the upper layer

Silica layer 2, which traps coarse impurities in the water. Then that happens

Water into the messy plastic layer 3 where it is filtered. Due to the irregularly wound plastic structure of the messy plastic layer 3, most of the small impurities stick to the surface of the messy plastic layer 3 and then flow from the inside to the outside. Some of the water continues its downward path and is filtered through the sub-silica layer 4 before finally passing through the

Drainage channel 17 drains. The drainage channel 6 is equipped with a distribution board 7 on which there are filter openings 19 which can filter impurities in the water. If too much contamination accumulates, an external device can be connected to the

Connecting element 18 can be connected to the slider 9 in order to press the slider 9 down. The slider 9 moves the first cleaning plate 10 and the second

Cleaning plate 11 downwards and pushes the contaminants out of the drainage channel 6 to fulfill a cleaning function.

In this embodiment, the rainwater is intercepted and filtered by the drainage layer, then discharged via the drainage channel 17 and the drainage channel 6 to reduce the impact of rainwater on the road surface 15 of the bridge, extend the service life and ensure the structural safety of the bridge .

The above is just one embodiment of the present invention. Further specific structures and features of the process are not described in detail here. It should be noted that professionals in this field have other variations and

Improvements can be made without departing from the basic structure of the present

invention. These should also be considered as part of the scope of protection of this

Invention be considered without the effect or practical use of the present

to affect the invention.

Claims (8)

Claims LU505013 1. A structure for ensuring drainage of the bridge substructure area, characterized by: a drainage channel, a drainage layer and a waterproofing layer; wherein the drainage channel is inclined and arranged along the sides of the bridge substructure surface; wherein the drainage layer includes a support grid structure, a lower pebble layer, a corrugated plastic layer, an upper pebble layer, a road surface, a collection channel and partitions; wherein the partitions are arranged vertically and are arranged uniformly along the longitudinal direction of the bridge substructure surface, with adjacent partitions forming a drainage space; wherein the support grid structure is positioned in the drainage space; wherein the lower layer of pebbles is laid on the bottom of the support grid structure; wherein the corrugated plastic layer is attached above the lower layer of pebbles; whereby the upper layer of pebbles lies over the corrugated plastic layer; wherein the road surface is disposed over the upper layer of gravel; wherein the collecting channel is arranged along the sides of the bridge substructure surface and is connected to all drainage spaces; wherein the collection channel communicates with the drainage channel; wherein the upper part of the drainage channel protrudes above the road surface and the lower part of the drainage channel is flush with the bottom of the collecting channel; wherein the sealing layer is arranged at the top of the road surface. 2. Structure for securing drainage of the bridge substructure surface according to claim 1, characterized by: a middle plate which is arranged in the central region of the drainage channel and is connected to the road surface. 3. Structure for ensuring drainage of the bridge substructure surface according to claim 2, characterized by: a plurality of filter openings which are arranged on the middle plate; a dirt layer disposed below the center plate and communicating with the filter openings; an outlet opening located at the lower end of the dirt layer and running parallel to the center plate. 4. Structure for securing drainage of the bridge substructure surface according to claim 3, characterized by: a collecting grid which is arranged in the collecting channel and prevents the lower layer of pebbles, the road surface and the upper layer of pebbles from being displaced to the outside. 5. Structure for ensuring drainage of the bridge substructure according to claim 4, characterized by: a support grid structure comprising a ground net structure and support rods; wherein the ground net structure is firmly connected to the collecting grid and is fixed on the bridge substructure surface; wherein the support rods are vertically attached to the ground net structure and support boards in a circular shape are attached to the upper end of the support rods. 6. Structure for securing drainage of the bridge substructure surface according to claim 5, characterized by: guide grooves arranged along the length of the partition walls on the middle plate; wherein the guide grooves contain sliders and a first cleaning plate is attached to the lower end of the sliders; wherein the first cleaning plate is slidably arranged in the dirt layer. 7. Structure for securing drainage of the bridge substructure surface according to claim 6, characterized by: second rotatably attached to the upper end of the slide cleaning plates; whereby the second cleaning plates can slide in the space above the 505013 drainage channel on the middle plate. 8. Structure for securing drainage of the bridge substructure surface according to claim 7, characterized by: a connecting loop which is arranged on the upper side of the slides towards the center of the bridge substructure surface.