CN211772735U - Adopt whole basic people's bank of china ladder ramp bridge structure of raft formula - Google Patents
Adopt whole basic people's bank of china ladder ramp bridge structure of raft formula Download PDFInfo
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- CN211772735U CN211772735U CN202020009909.4U CN202020009909U CN211772735U CN 211772735 U CN211772735 U CN 211772735U CN 202020009909 U CN202020009909 U CN 202020009909U CN 211772735 U CN211772735 U CN 211772735U
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Abstract
The utility model provides a pedestrian ladder ramp bridge structure adopting raft type integral foundation, which comprises a foundation trench cushion layer, a raft, a foundation beam, a ladder ramp beam and a plurality of piers; the raft plates are poured on the foundation trench cushion layer; the base beam is arranged on the raft; the plurality of piers are distributed on the raft plate; the ladder ramp beam is arranged on the upper end surface of the pier; one end of the ladder ramp beam is connected with the ground, and the other end of the ladder ramp beam is connected with the pedestrian overpass; raft, foundation beam, pier and terraced ramp roof beam between connect through the consolidation mode, foundation ditch bed course, raft and pier and raft's junction all be located the underfloor. The utility model has the advantages that: can carry out the overpass building in the place of overwhelming majority, fully release the space under the ladder way bridge, furthest avoids adopting pile foundation, enlarges destruction and the interference of basis to underground construction such as underground piping, piping lane.
Description
Technical Field
The utility model relates to a municipal construction field especially relates to an adopt pedestrian's ladder ramp bridge structure of raft formula whole basis.
Background
With the increasing of urban population density, the construction of urban pedestrian overpasses has positive effects on the activities of people on two sides of roads, solving the conflict of pedestrian and vehicle interweaving, eliminating the hidden danger of pedestrian crossing safety, reducing traffic accidents, improving the running efficiency of urban roads and the like.
Meanwhile, with the rapid development of the economy of China and the acceleration of the urbanized construction pace, the demand of urban development on public pipelines is increased, and most pipelines, pipe galleries and pipe ditches form staggered and complex underground spider nets and are intensively arranged underground at sidewalks and intersections. The pedestrian overpass is generally built in a section with large traffic flow, dense pedestrians and dense pipeline and pipeline. Meanwhile, the problem that a plurality of pipelines, pipe galleries and pipe ditches cannot be changed is solved.
Due to the existence of the bridge pile foundation, related underground pipelines, pipe galleries, pipe ditches and the like are inevitably influenced during construction, and meanwhile, due to the fact that surface geological conditions are generally poor, the requirements of bearing capacity and settlement cannot be met by adopting the enlarged foundation, and therefore the overpass cannot be erected in many places or the erection cost is too high.
Disclosure of Invention
An object of the utility model is to provide an adopt pedestrian's ladder ramp bridge structure of raft formula overall foundation, solved the problem that can't establish ladder ramp bridge in underground piping, piping lane, the relatively poor many places such as top layer geological conditions.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pedestrian ladder ramp bridge structure adopting a raft type integral foundation comprises a foundation ditch cushion layer, a raft, a foundation beam, a ladder ramp beam and a plurality of piers;
the raft plates are poured on the foundation trench cushion layer;
the base beam is arranged on the raft;
the plurality of piers are distributed on the raft plate;
the ladder ramp beam is arranged on the upper end surface of the pier; one end of the ladder ramp beam is connected with the ground, and the other end of the ladder ramp beam is connected with the pedestrian overpass;
the raft, the foundation beam, the bridge pier and the ladder slope beam are connected in a consolidation mode,
the foundation trench cushion layer, the raft plate and the connection part of the pier and the raft plate are all positioned under the ground.
Furthermore, the foundation beams comprise a plurality of transverse foundation beams and a plurality of longitudinal foundation beams;
the transverse foundation beams and the longitudinal foundation beams are vertically staggered on the raft plates;
the bridge pier is arranged at the joint of the transverse foundation beam and the longitudinal foundation beam.
Furthermore, the device also comprises a supporting frame,
one end of the support frame is arranged on the upper end face of the pier, and the other end of the support frame is propped against the lower end face of the ladder ramp beam.
Furthermore, the support frame comprises a cap beam and two supports;
the cap beam is arranged on the upper end surface of the pier; the two brackets are symmetrically arranged on the left side and the right side of the cap beam;
the two supports are propped against the lower end face of the ladder ramp beam.
Furthermore, the support frame comprises a cap beam and two supports;
the cap beam is arranged on the upper end surface of the pier; is connected with the bridge pier in a consolidation mode,
the two supports are symmetrically arranged on the cap beam;
the two supports are propped against the lower end face of the ladder ramp beam.
Further, the distance A between the two supports is larger than the width B of the 1/2 ladder ramp beam.
Furthermore, the support is a plate type rubber support.
Furthermore, the anti-falling device also comprises two transverse anti-falling stop blocks and two longitudinal anti-falling stop blocks;
the transverse anti-falling stop block and the longitudinal anti-falling stop block are arranged on the lower end face of the ladder ramp beam in a staggered manner, and are connected with the ladder ramp beam in a consolidation manner;
the cap beam is positioned between the transverse anti-falling stop block and the longitudinal anti-falling stop block, and the height of the transverse anti-falling stop block and the height of the longitudinal anti-falling stop block are greater than that of the support.
Furthermore, the raft is a reinforced concrete raft.
After the technical scheme is adopted, the beneficial effects of the utility model are that: can carry out the overline bridge building in the place of overwhelming majority, can fully release the space below the ladder way bridge, furthest avoids adopting pile foundation, enlarges destruction and the interference of basis to underground construction such as underground piping, piping lane.
Drawings
Fig. 1 is a front view of a first embodiment of the present invention.
Fig. 2 is a side view of the first embodiment of the present invention.
Fig. 3 is a top view of the raft, the foundation beam and the bridge pier.
Fig. 4 is a front view of the two embodiments of the present invention.
Fig. 5 is a partially enlarged view of a portion a of fig. 4.
Fig. 6 is a side view of a second embodiment of the present invention.
01: a foundation trench cushion layer; 02: a raft plate; 21: a longitudinal foundation beam; 22: a transverse foundation beam; 31: a bridge pier; 41: a cap beam; 42: a support; 51: a ladder ramp beam; 52: a transverse anti-falling stop block; 53: longitudinal anti-drop block, 6: ground surface, 7: pedestrian overpass.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
The first embodiment is as follows:
as shown in fig. 1 to 3, a pedestrian ladder ramp bridge structure using raft type integral foundation is disclosed, which comprises a foundation ditch cushion layer 01, a raft 02, a base beam, a ladder ramp beam 51 and a plurality of piers 31.
The raft 02 is poured on the foundation trench cushion layer 01, and the raft 02 is a reinforced concrete raft. The base beam is arranged on the raft plate 02; the base beams comprise a plurality of longitudinal foundation beams 21 and a plurality of transverse foundation beams 22; the transverse foundation beams 22 and the longitudinal foundation beams 21 are vertically arranged on the raft 02 in a staggered mode, and the piers 31 are arranged at the connecting positions of the transverse foundation beams 22 and the longitudinal foundation beams 21.
The ladder slope girder 51 is installed on the upper end surface of the pier 31; one end of the ladder ramp beam 51 is connected with the ground 6, and the other end is connected with the pedestrian overpass 7.
The raft 02, the foundation beams, the piers 31 and the ladder ramp beams 51 are connected in a consolidation mode,
the scheme adopts the ladder slope way beam 51 to be connected with the pier 31 in a consolidation mode, and the ladder slope way beam 51 is fixed on the pier 31.
Example two:
the second embodiment is different from the first embodiment in that the piers 31 are not directly connected to the ramp girders 51.
As shown in fig. 4 to 6: a support frame is further arranged at the connection position of the pier 31 and the gradient ramp girder 51, one end of the support frame is arranged on the pier 31, and the other end of the support frame is propped against the lower end face of the gradient ramp girder 51 and is used for supporting the gradient ramp girder 51.
The support frame comprises a cap beam 41 and two supports 42; the cap beam 41 is provided on the upper end surface of the pier 31; and is connected to the pier 31 by a fastening method. The two supports 42 are symmetrically arranged on the left side and the right side of the cap beam 41; the support 42 is pressed against the lower end face of the ramp beam 51, and the support 42 is a plate type rubber support.
The pier 31 has a cylindrical shape, and the cap beam 41 has a length and a width greater than the diameter of the pier 31. The spacing a between the two abutments provided on the cap beam 41 is greater than 1/2 the width B of the ramp beam 51. This width enables the ladder ramp beam 51 to be supported more stably.
In order to prevent the position of the ladder ramp beam 51 from being displaced, two lateral fall-preventing stoppers 52 and two longitudinal fall-preventing stoppers 53 are provided on the lower end surface of the ladder ramp beam 51. The transverse anti-falling block 52 and the longitudinal anti-falling block 53 are arranged on the lower end face of the ladder ramp beam 51 in a staggered mode, and the transverse anti-falling block 52 and the longitudinal anti-falling block 53 are connected with the ladder ramp beam 51 in a consolidation mode.
The lateral drop-preventing stoppers 52 and the longitudinal drop-preventing stoppers 53 are positioned outside the cap beam 41, and the heights of the lateral drop-preventing stoppers 52 and the longitudinal drop-preventing stoppers 53 are greater than the height of the holder 42. The lateral anti-fall block 52 and the longitudinal anti-fall block 53 effectively prevent the ladder ramp beam 51 from being displaced.
The counterforce of each independent pier of the pedestrian bridge ladder way acts on the same raft, the characteristic of large integral bending rigidity of the raft is combined, uneven load of the upper structure and uneven settlement of the foundation are adjusted, and bearing capacity of the foundation is fully utilized. And meanwhile, the space below the stairway bridge is fully released, so that the damage and interference of adopting a pile foundation and expanding the foundation to underground buildings such as underground pipelines and pipe galleries are avoided to the maximum extent.
To sum up, the utility model discloses a foundation ditch bed course is connected with the design of raft board, can arrange the relatively poor place of large pipeline, piping lane, geological conditions in the underground and construct.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (8)
1. The utility model provides an adopt pedestrian's ladder ramp bridge structure of raft formula monolithic foundation which characterized in that: comprises a foundation trench cushion layer, a raft, a foundation beam, a ladder ramp beam and a plurality of piers;
the raft plates are poured on the foundation trench cushion layer;
the base beam is arranged on the raft;
the plurality of piers are distributed on the raft plate;
the ladder ramp beam is arranged on the upper end surface of the pier; one end of the ladder ramp beam is connected with the ground, and the other end of the ladder ramp beam is connected with the pedestrian overpass;
the raft, the foundation beam, the bridge pier and the ladder slope beam are connected in a consolidation mode,
the foundation trench cushion layer, the raft plate and the connection part of the pier and the raft plate are all positioned under the ground.
2. The pedestrian ladder ramp bridge structure using raft-type integral foundations as claimed in claim 1, wherein: the foundation beams comprise a plurality of transverse foundation beams and a plurality of longitudinal foundation beams;
the transverse foundation beams and the longitudinal foundation beams are vertically staggered on the raft plates;
the bridge pier is arranged at the joint of the transverse foundation beam and the longitudinal foundation beam.
3. The pedestrian ladder ramp bridge structure adopting raft type integral foundations as claimed in claim 1 or 2, wherein: the bridge pier structure is characterized by further comprising a support frame, wherein one end of the support frame is arranged on the upper end face of the bridge pier, and the other end of the support frame is propped against the lower end face of the ladder ramp beam.
4. A pedestrian ladder ramp bridge structure employing raft integral foundations as claimed in claim 3, wherein: the support frame comprises a cap beam and two supports;
the cap beam is arranged on the upper end surface of the bridge pier and is connected with the bridge pier in a consolidation mode,
the two supports are symmetrically arranged on the left side and the right side of the cap beam;
the two supports are propped against the lower end face of the ladder ramp beam.
5. The pedestrian ladder ramp bridge structure adopting raft type integral foundations as claimed in claim 4, wherein: the distance A between the two supports is larger than the width B of 1/2 ladder ramp beams.
6. The pedestrian ladder ramp bridge structure using raft-type integral foundations as claimed in claim 5, wherein: the support is a plate type rubber support.
7. The pedestrian ladder ramp bridge structure using raft-type integral foundations as claimed in claim 5, wherein: the anti-falling device also comprises two transverse anti-falling check blocks and two longitudinal anti-falling check blocks;
the transverse anti-falling check block and the longitudinal anti-falling check block are arranged on the lower end face of the ladder ramp beam in a staggered manner;
the transverse anti-falling stop block and the longitudinal anti-falling stop block are connected with the ladder ramp beam in a consolidation mode;
the transverse anti-falling stop block and the longitudinal anti-falling stop block are abutted against the outer side of the cap beam, and the height of the transverse anti-falling stop block and the height of the longitudinal anti-falling stop block are larger than that of the support.
8. The pedestrian ladder ramp bridge structure using raft-type integral foundations as claimed in claim 1, wherein: the raft is a reinforced concrete raft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009909.4U CN211772735U (en) | 2020-01-03 | 2020-01-03 | Adopt whole basic people's bank of china ladder ramp bridge structure of raft formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009909.4U CN211772735U (en) | 2020-01-03 | 2020-01-03 | Adopt whole basic people's bank of china ladder ramp bridge structure of raft formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211772735U true CN211772735U (en) | 2020-10-27 |
Family
ID=72891689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020009909.4U Active CN211772735U (en) | 2020-01-03 | 2020-01-03 | Adopt whole basic people's bank of china ladder ramp bridge structure of raft formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211772735U (en) |
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2020
- 2020-01-03 CN CN202020009909.4U patent/CN211772735U/en active Active
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