CN212247747U - Ground anchor type steel structure construction structure for overhanging sidewalk - Google Patents
Ground anchor type steel structure construction structure for overhanging sidewalk Download PDFInfo
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- CN212247747U CN212247747U CN202020526337.7U CN202020526337U CN212247747U CN 212247747 U CN212247747 U CN 212247747U CN 202020526337 U CN202020526337 U CN 202020526337U CN 212247747 U CN212247747 U CN 212247747U
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Abstract
The utility model discloses a ground anchor formula steel construction sidewalk construction structures of encorbelmenting, including original road surface and original road surface barricade, be equipped with reinforced concrete raft on the original road surface, reinforced concrete raft tip position just is equipped with the reinforced concrete hidden beam on lieing in original road surface barricade, be equipped with main girder steel in the reinforced concrete raft, main girder steel one end sets up in reinforced concrete raft, and the other end is encorbelmented the setting in the original road surface barricade outside after passing reinforced concrete hidden beam to form the lever structure of encorbelmenting that uses reinforced concrete hidden beam as the fulcrum. The utility model has the advantages that: the raft hidden beam is used as a fulcrum, the inner side raft reinforced concrete and the new and old pavement structure are combined into a whole to be used as a balance weight, the main steel beam embedded into the raft reinforced concrete extends out of the outer side of the hidden beam to form a cantilever, and the cantilever arrangement is carried out on the principle that the balance weight is larger than all effective loads borne by the cantilever side on the premise of ensuring safety and stability.
Description
Technical Field
The utility model relates to a road construction engineering technical field, concretely relates to ground anchor formula steel construction pavement construction structures of encorbelmenting.
Background
The overhanging sidewalk is arranged at the edge position of the road surface near water or on a cliff, namely, the overhanging sidewalk extends outwards from the road for a certain distance to form an overhang so as to widen the width of the road for pedestrians to walk or sightseeing; the existing construction scheme of the edge overhanging road is not perfect, after construction, due to the fact that the overhanging balance weight problem exists between the overhanging side and the road side, sinking or damage phenomena easily occur at the position of an overhanging fulcrum, and therefore potential safety hazards appear on the overhanging side, innovation is conducted on the basis of the traditional overhanging balance weight, and the problems in the prior art are fundamentally solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a people moving walkways construction structures encorbelments of ground anchor formula steel construction that structural design is reasonable.
The technical scheme of the utility model as follows:
ground anchor formula steel construction sidewalk construction structures of encorbelmenting, including original road surface and original road surface barricade, its characterized in that, be equipped with reinforced concrete raft on the original road surface, reinforced concrete raft tip position just is equipped with the reinforced concrete hidden beam on lieing in original road surface barricade, be equipped with main girder steel in the reinforced concrete raft, main girder steel one end sets up in reinforced concrete raft, and the other end is encorbelmented the setting outside original road surface barricade after passing reinforced concrete hidden beam to form the lever structure of encorbelmenting that uses reinforced concrete hidden beam as the fulcrum.
The ground anchor type steel structure construction structure for the overhanging sidewalk is characterized in that an asphalt concrete surface layer is laid on the reinforced concrete raft plate at the position of an original road surface, and an overhanging trestle plate is arranged on the main steel beam at the position of the outer side of the original road surface.
Ground anchor formula steel construction sidewalk construction structures of encorbelmenting, its characterized in that, reinforced concrete raft adopts double-deck length and breadth to arrange, including raft upper reinforcing bar and raft lower floor's reinforcing bar.
Ground anchor formula steel construction pavement construction structures of encorbelmenting, its characterized in that, main girder steel sets up between raft board upper reinforcing bar and raft board lower floor's reinforcing bar, and is equipped with the angle sign indicating number on the main girder steel to fix on original road surface through anchor bolt.
Ground anchor formula steel construction pavement construction structures of encorbelmenting, its characterized in that, main girder steel tip is equipped with horizontal girder steel to it is fixed through horizontal girder steel connection, main girder steel end is fixed and is set up the arc guardrail.
The ground anchor type steel structure construction structure of the overhanging sidewalk is characterized in that an isolation guardrail is arranged at the junction of the asphalt concrete surface layer and the overhanging trestle plate.
Ground anchor formula steel construction pavement construction structures of encorbelmenting, its characterized in that, the plank road board of encorbelmenting includes that vertical steel joist and quartzy mould the board, vertical steel joist parallel lays on main girder steel, quartzy board of moulding is laid on vertical steel joist.
The construction structure of the ground anchor type steel structure cantilever sidewalk is characterized in that the main steel beams are arranged at intervals of 1.8-2.2m along the axis of an original pavement, expansion joints are arranged at intervals of 28-32m, the width of each expansion joint is 48-52mm, the main steel beams at the expansion joints are arranged in parallel at two times according to 48-52mm, and transverse reinforcing steel beams are arranged at the expansion joints.
The ground anchor type steel structure construction structure for the overhanging sidewalk is characterized in that a hidden beam cushion layer is arranged on the original pavement retaining wall, and the reinforced concrete hidden beam is arranged on the hidden beam cushion layer.
The ground anchor type steel structure construction structure of the overhanging sidewalk is characterized in that the asphalt concrete surface layer is inclined outwards by 2%.
The utility model has the advantages that:
1) the raft hidden beam is used as a fulcrum, the inner side raft reinforced concrete and the new and old pavement structure are combined into a whole to be used as a balance weight, the main steel beam embedded into the raft reinforced concrete extends out of the outer side of the hidden beam to form a cantilever, and the cantilever arrangement is carried out on the principle that the balance weight is larger than all effective loads borne by the cantilever side on the premise of ensuring safety and stability.
2) The embedded main steel beam is anchored on the original old pavement by using expansion bolts meeting the design strength requirement, so that the embedded steel beam and the original old pavement form a whole and provide anchoring force meeting the design requirement; and then pouring the pre-buried main steel beams and the upper and lower layers of reinforcing mesh sheets into a raft, and finally paving a new pavement on the raft, so that the cast-in-place raft, the original old pavement structure and the newly paved pavement structure form a whole, and the overturning of the overhanging end is resisted by using the whole counterweight.
Drawings
Fig. 1 is a schematic side view of the present invention;
fig. 2 is a schematic top view of the present invention;
in the figure: 1-original pavement, 2-raft upper-layer steel bars, 3-raft lower-layer steel bars, 4-asphalt concrete surface layer, 5-reinforced concrete raft, 6-isolation guardrails, 7-quartz plastic plates, 8-longitudinal steel keels, 9-arc guardrails, 10-transverse steel beams, 11-main steel beams, 12-reinforced concrete hidden beams, 13-hidden beam cushion layers, 14-original pavement retaining walls, 15-anchoring bolts, 16-corner connectors, 17-transverse reinforcing steel beams and 18-expansion joints.
Detailed Description
The invention is further described with reference to the accompanying drawings.
As shown in fig. 1-2, the ground anchor type steel structure construction structure for overhanging sidewalk includes an original pavement 1, raft upper-layer steel bars 2, raft lower-layer steel bars 3, asphalt concrete surface layer 4, reinforced concrete raft 5, isolation guardrails 6, quartz plastic plates 7, longitudinal steel keels 8, arc guardrails 9, transverse steel beams 10, main steel beams 11, reinforced concrete hidden beams 12, hidden beam cushions 13, original pavement retaining walls 14, anchor bolts 15, corner connectors 16, transverse reinforcing steel beams 17 and expansion joints 18.
The ground anchor type steel structure construction structure of the overhanging sidewalk is constructed on an original pavement 1 and an original pavement retaining wall 14. A reinforced concrete raft 5 is arranged on the original pavement 1, a reinforced concrete hidden beam 12 is arranged at the end position of the reinforced concrete raft 5 and on the original pavement retaining wall 14, a hidden beam cushion 13 (the hidden beam cushion is of a reinforced concrete structure) is paved on the original pavement retaining wall 14 in advance, and the reinforced concrete hidden beam 12 is arranged on the hidden beam cushion 13; the reinforced concrete raft 5 is internally provided with a main steel beam 11, one end of the main steel beam 11 is arranged in the reinforced concrete raft 5, and the other end of the main steel beam is arranged outside the original pavement retaining wall 14 in a cantilever manner after penetrating through the reinforced concrete hidden beam 12, so that a cantilever lever structure taking the reinforced concrete hidden beam 12 as a fulcrum is formed.
The reinforced concrete raft 5 adopts double-layer reinforced bars to be arranged vertically and horizontally, and comprises raft upper-layer reinforced bars 2 and raft lower-layer reinforced bars 3. During construction, a reinforcement cage of a reinforced concrete hidden beam 12 is arranged, then raft lower-layer reinforcements 3 are laid on an original road surface 1, main steel beams 11 penetrate through the reinforcement cage of the reinforced concrete hidden beam 12 and are placed on the raft lower-layer reinforcements 3, the main steel beams are fixed on the original road surface 1 through angle codes 16 and anchoring bolts 15, and finally raft upper-layer reinforcements 2 are laid.
Asphalt concrete surface layers 4 are laid on the positions, located on the original road surface 1, of the reinforced concrete raft plates 5, the asphalt concrete surface layers 4 are two layers and comprise asphalt concrete upper surface layers and asphalt concrete lower surface layers, and the asphalt concrete surface layers 4 are inclined to the overhanging side by 2% so that the road surface can drain water conveniently. The main steel beam 11 is provided with an overhanging plank road board at the outer side of the original road surface 1, the overhanging plank road board comprises a longitudinal steel keel 8 and a quartz plastic board 7, the longitudinal steel keel 8 is laid on the main steel beam 11 in parallel (welded and fixed), and the quartz plastic board 7 is laid on the longitudinal steel keel 8 (fixed by bolts).
The main steel beams 11 are made of I-shaped steel, the main steel beams 11 are arranged between upper-layer reinforcing steel bars 2 and lower-layer reinforcing steel bars 3 of the raft, one main steel beam 11 is arranged along the axis of an original pavement at intervals of 1.8-2.2m, expansion joints 18 are arranged at intervals of 28-32m, the seam width is 48-52mm, the main steel beams 11 at the expansion joints 18 are arranged in parallel at two times according to 48-52mm, transverse reinforcing steel beams 17 are arranged at the expansion joints, corner connectors 16 are arranged on the main steel beams 11, and the main steel beams are fixed on the original pavement 1 through anchor bolts 15.
11 ends of main girder steel are equipped with horizontal girder steel 10, and fixed cross beam bolted connection angle sign indicating number and arc guardrail bolted connection angle sign indicating number on the main girder steel 11, horizontal girder steel 10 pass through cross beam bolted connection angle sign indicating number and fix on main girder steel 11, and arc guardrail 9 passes through arc guardrail bolted connection angle sign indicating number and fixes at main girder steel 11 ends.
The junction of the asphalt concrete surface layer 4 and the overhanging plank road plate is provided with an isolation guardrail 6, a guardrail pile standing hole is reserved when the reinforced concrete raft plate 5 is poured, the isolation guardrail 6 is fixedly arranged in the guardrail pile standing hole, and the motor vehicle lane (the asphalt concrete surface layer 4) and the sidewalk (the overhanging plank road plate) can be separated through the isolation guardrail 6 to form man-vehicle shunting.
Claims (10)
1. Ground anchor formula steel construction structure of encorbelmenting pavement, including original road surface (1) and original road surface barricade (14), its characterized in that, be equipped with reinforced concrete raft (5) on original road surface (1), reinforced concrete raft (5) tip position just is equipped with reinforced concrete hidden beam (12) on lieing in original road surface barricade (14), be equipped with main girder steel (11) in reinforced concrete raft (5), main girder steel (11) one end sets up in reinforced concrete raft (5), and the other end is passed behind reinforced concrete hidden beam (12) and is encorbelmented the setting in original road surface barricade (14) outside to form and use reinforced concrete hidden beam (12) as the lever structure of encorbelmenting of fulcrum.
2. The ground anchor type steel structure construction structure for the overhanging sidewalk according to claim 1, wherein a bituminous concrete surface layer (4) is laid on the reinforced concrete raft (5) at the position of the original pavement (1), and an overhanging trestle plate is arranged on the main steel beam (11) at the position of the outer side of the original pavement (1).
3. The ground anchor type steel structure construction structure for the overhanging sidewalk according to claim 1, wherein the reinforced concrete raft (5) adopts a double-layer longitudinal and transverse arrangement and comprises raft upper-layer steel bars (2) and raft lower-layer steel bars (3).
4. The ground anchor type steel structure construction structure for the cantilever sidewalk according to claim 3, wherein the main steel beam (11) is arranged between the upper-layer steel bars (2) and the lower-layer steel bars (3) of the raft, and the main steel beam (11) is provided with an angle code (16) and fixed on the original pavement (1) through an anchoring bolt (15).
5. The ground anchor type steel structure cantilever sidewalk construction structure is characterized in that transverse steel beams (10) are arranged at the end parts of the main steel beams (11) and are fixedly connected through the transverse steel beams (10), and arc-shaped guardrails (9) are fixedly arranged at the tail ends of the main steel beams (11).
6. The ground anchor type steel structure construction structure for the overhanging sidewalk according to claim 2, wherein an isolation guardrail (6) is arranged at the junction of the asphalt concrete surface layer (4) and the overhanging trestle plate.
7. The ground-anchored steel-structured overhanging sidewalk construction structure according to claim 2, wherein the overhanging plank road comprises longitudinal steel keels (8) and quartz plastic plates (7), the longitudinal steel keels (8) are laid on the main steel beams (11) in parallel, and the quartz plastic plates (7) are laid on the longitudinal steel keels (8).
8. The ground-anchored steel-structured cantilever sidewalk construction structure according to claim 1, wherein the main steel beams (11) are arranged one at intervals of 1.8-2.2m along the axis of the original pavement, and expansion joints (18) are arranged at intervals of 28-32m, the width of the expansion joints is 48-52mm, the main steel beams (11) at the expansion joints (18) are arranged in parallel twice according to 48-52mm, and transverse reinforcing steel beams (17) are arranged at the expansion joints.
9. The ground-anchored steel-structured overhanging sidewalk construction structure according to claim 1, wherein the original pavement retaining wall (14) is provided with a hidden beam cushion layer (13), and the reinforced concrete hidden beam (12) is arranged on the hidden beam cushion layer (13).
10. The ground-anchored steel-structured overhanging sidewalk construction structure according to claim 2, wherein the asphalt concrete surface course (4) is inclined outward by 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526337.7U CN212247747U (en) | 2020-04-13 | 2020-04-13 | Ground anchor type steel structure construction structure for overhanging sidewalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526337.7U CN212247747U (en) | 2020-04-13 | 2020-04-13 | Ground anchor type steel structure construction structure for overhanging sidewalk |
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| Publication Number | Publication Date |
|---|---|
| CN212247747U true CN212247747U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020526337.7U Active CN212247747U (en) | 2020-04-13 | 2020-04-13 | Ground anchor type steel structure construction structure for overhanging sidewalk |
Country Status (1)
| Country | Link |
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| CN (1) | CN212247747U (en) |
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2020
- 2020-04-13 CN CN202020526337.7U patent/CN212247747U/en active Active
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