CN117230716B - Pedestrian bridge and existing building connecting pedestrian ramp construction method - Google Patents
Pedestrian bridge and existing building connecting pedestrian ramp construction method Download PDFInfo
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- CN117230716B CN117230716B CN202311069224.3A CN202311069224A CN117230716B CN 117230716 B CN117230716 B CN 117230716B CN 202311069224 A CN202311069224 A CN 202311069224A CN 117230716 B CN117230716 B CN 117230716B
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- 238000010276 construction Methods 0.000 title claims abstract description 89
- 230000001360 synchronised effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 230000002349 favourable effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The application discloses a construction method for connecting a pedestrian bridge with an existing building and constructing a pedestrian ramp, which comprises the steps of synchronously constructing non-conflicting construction links in the pedestrian bridge and the pedestrian ramp, installing a sliding structure at the bottom of a ramp structure section close to a main bridge of the pedestrian bridge, placing the sliding structure on one of the main bridge structure sections by virtue of the sliding structure, then completing section connection work, performing arch-forming construction on the main bridge structure of the pedestrian bridge, and relatively sliding the connection position of a main body of the pedestrian ramp and a main body of the pedestrian bridge under the action of the sliding structure; pouring construction is performed at the joint of the pedestrian bridge main body and the pedestrian ramp main body, and pouring construction is performed at the joint of the pedestrian ramp main body and the existing building main body; and removing the temporary support of the main bridge of the pedestrian bridge and the temporary support of the ramp bridge. The application has the effect of ensuring the synchronous construction efficiency of the pedestrian ramp and the pedestrian bridge.
Description
Technical Field
The application relates to the field of building construction, in particular to a construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp.
Background
The pedestrian bridge is a traffic tie for connecting two banks of a city river, along with the continuous upgrading and reconstruction of the city, the two banks have the existing building forests, including public buildings such as libraries and medical centers, the traffic volume is also rapidly increased, the pedestrian bridge is difficult to meet the current demands, the construction period is urgent, in order to lighten the traffic pressure, the requirement of seamless sightseeing experience of the two banks is met, the pedestrian ramp is required to be connected between the pedestrian bridge and the existing building at the bank, and the pedestrian bridge and the pedestrian ramp are required to be synchronously constructed, so that the construction period is shortened, the pedestrian ramp can not only play the sightseeing requirement, but also can play the pedestrian flow pressure of the pedestrian bridge, and the space vitality is continued for the city.
In the construction of the pedestrian bridge, the pile foundation is constructed by adopting rotary digging, drilling and pore-forming; the steel pipe pile cofferdam construction is adopted for the bearing platform, the angle steel skeleton is erected in the construction of the steel pipe pile cofferdam, the arch hinge bases of the V legs are respectively pre-buried at the land positions of the two sides, the V legs are hinged to the corresponding arch hinge bases, the arch bridge main structure is prefabricated at the sections of a factory, then the bridge main structure is transported to the site, the temporary support is used for hoisting in place through the built underwater trestle, all the sections are welded, all the stages are connected into a whole, the V legs at the two ends of the bridge are tensioned by using pull rods, the arch is formed to a design value, then the arch foot sections of the bridge are converted into a fixedly connected structure, the bridge is finally formed, at present, the biggest problem encountered in synchronously constructing a pedestrian bridge and a pedestrian ramp is that one end of the pedestrian ramp is connected with the pedestrian bridge, the final arch forming step of the pedestrian bridge can enable one end of the pedestrian ramp to be lifted, the main body position of the pedestrian ramp is changed, a series of adjustment construction is needed, the construction progress and quality are influenced, and therefore, the improvement space is still provided.
Disclosure of Invention
In order to ensure the synchronous construction efficiency of the pedestrian ramp and the pedestrian bridge, the application provides a construction method for connecting the pedestrian ramp with the existing building.
The application provides a construction method for connecting a pedestrian bridge with an existing building to a pedestrian ramp, which adopts the following technical scheme:
a construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp comprises the following steps:
s1: synchronous construction of a pedestrian bridge main bridge pile foundation and a pedestrian ramp bridge pile foundation;
s2: synchronous construction of a temporary support of a main bridge of the pedestrian bridge and a temporary support of a ramp bridge;
S3: synchronous hoisting construction of main bridge structural sections and ramp structural sections of the pedestrian bridge: hanging the main bridge structural sections on a main bridge temporary support, hanging the ramp structural sections on the ramp bridge temporary support, and installing a sliding structure at the bottom of the ramp structural sections close to the pedestrian bridge main bridge, wherein the sliding structure is arranged on one main bridge structural section; one end of the ramp structure section close to the existing building main body is hung on an outdoor corridor outside the existing building main body;
s4: connecting adjacent main bridge structural sections and forming a pedestrian bridge main body, and connecting adjacent ramp structural sections and forming a pedestrian ramp main body;
S5: removing a temporary support of the main bridge of the pedestrian bridge, performing arch-forming construction on the main bridge structure of the pedestrian bridge, and enabling the junction of the ramp main body and the main body of the pedestrian bridge to slide relatively under the action of a sliding structure;
S6: and pouring construction is performed at the joint of the pedestrian bridge main body and the pedestrian ramp main body, and pouring construction is performed at the joint of the pedestrian ramp main body and the existing building main body.
S7: and removing the temporary support of the ramp bridge.
By adopting the technical scheme, synchronous construction is carried out in the construction links which do not conflict in the pedestrian bridge and the pedestrian ramp, then the problem of position up shift is caused by arch-forming construction of the pedestrian bridge, a sliding structure is arranged at the bottom of the ramp structure section close to the main bridge of the pedestrian bridge, the sliding structure is placed on one of the main bridge structure sections, then the section connection work is completed, and then arch-forming construction is carried out on the pedestrian bridge, the connection position of the pedestrian ramp main body and the pedestrian bridge main body is subjected to relative sliding under the action of the sliding structure, so that the construction of other ramp structure sections of the pedestrian ramp is not excessively influenced, the synchronous construction efficiency of the pedestrian ramp and the pedestrian bridge is ensured, and the construction period of the pedestrian bridge and the pedestrian ramp is shortened.
Preferably, the sliding structure comprises a supporting plate and rollers arranged at the bottom of the supporting plate, and the ramp structure sections are connected with the supporting plate through universal joints.
Through adopting above-mentioned technical scheme to improve the flexibility of structure of sliding, at the bridge arch-forming in-process of people's foot, people's ramp main part and people's bridge main part directly can take place the angle change, through the setting of universal joint, be favorable to reducing the structure of sliding and take place the problem of perk because of the angle change between people's bridge main part and the people's ramp main part, be favorable to the stability of structure of sliding.
Preferably, in the step S2, a first jack is installed on each temporary support of the ramp bridge, and when the section of the ramp structure is lifted to the temporary support of the ramp bridge, the first jack supports the bottom of the section of the ramp structure; in the step of connecting the adjacent ramp structure segments in the step S4, the height positions of the corresponding ramp structure segments are adjusted up and down by the first jack so as to splice the adjacent ramp structure segments.
Preferably, in the arch-lifting construction of the pedestrian bridge in S5, the first jack on the temporary support of each ramp bridge vertically adjusts the ramp main body, and in the process of moving up the junction of the ramp main body and the pedestrian bridge main body, the first jack jacks up and provides supporting force for the ramp main body.
By adopting the technical scheme, the first jack adjusts the ramp structure sections in the step S2 so as to align and splice adjacent ramp structure sections, and the whole pedestrian ramp main body is propped in the step S4 so as to disperse the load of the pedestrian ramp main body, thereby being beneficial to improving the stability of the pedestrian ramp when the pedestrian bridge arches.
Preferably, before pouring construction is performed on the junction of the pedestrian bridge main body and the pedestrian ramp main body in the step S6, a supporting structure is installed, the supporting structure supports one end of the pedestrian ramp main body at the pedestrian bridge main body, then the sliding structure is removed, a template is built on the junction of the pedestrian bridge main body and the pedestrian ramp main body, and then concrete pouring construction is performed on the junction of the pedestrian bridge main body and the pedestrian ramp main body.
Through adopting above-mentioned technical scheme, replace the structure that slides with bearing structure, be favorable to improving the connection steadiness of pedestrian bridge main part and pedestrian ramp main part.
Preferably, the support structure is a second jack, and after the sliding structure is removed, the second jack is matched with the first jack so as to jack up the main body of the pedestrian ramp, so that the inclination angle of the main body of the pedestrian ramp is adjusted.
Through adopting above-mentioned technical scheme, in order to satisfy the parallelism of pedestrian ramp main part, cooperate first jack through the second jack, jack-up to the pedestrian ramp main part to the inclination of overall adjustment pedestrian ramp main part is favorable to adjusting the levelness of pedestrian ramp main part to satisfying the design requirement.
Preferably, the temporary support of the ramp bridge is built in the step S2, and meanwhile, the lower section of the ramp bridge pier is constructed on the basis of the ramp bridge pile.
Preferably, before the step S7 of removing the temporary support of the ramp bridge, the ramp bridge pier main body above the ramp bridge pile foundation is completed, the ramp bridge pier main body plays a role in supporting the sidewalk ramp bridge pier main body, and after the ramp bridge pier main body is completed in construction, the temporary support of the ramp bridge is removed.
By adopting the technical scheme, the ramp bridge temporary support is built, and meanwhile, the ramp bridge temporary support is also built, namely, the ramp bridge pier foundation is firstly constructed, so long as the ramp bridge pier main body construction is completed before the ramp bridge temporary support is dismantled in S7, the ramp bridge is used as a permanent supporting structure, the ramp bridge pier is supported, and the stability of the pedestrian ramp bridge is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. synchronous construction is carried out through construction links which do not conflict in a pedestrian bridge and a pedestrian ramp, then the problem of position upward movement is caused by arch-forming construction of the pedestrian bridge, a sliding structure is arranged at the bottom of a ramp structure section close to a main bridge of the pedestrian bridge, the ramp structure section is placed on one main bridge structure section by virtue of the sliding structure, then the section connection work is completed, and then arch-forming construction is carried out on the pedestrian bridge, and the connection position of a pedestrian ramp main body and the pedestrian bridge main body is subjected to relative sliding under the action of the sliding structure, so that the construction of other ramp structure sections of the pedestrian ramp is not influenced excessively, the synchronous construction efficiency of the pedestrian ramp and the pedestrian bridge is ensured, and the construction period of the pedestrian bridge and the pedestrian ramp is shortened;
2. The first jack is arranged on each temporary ramp bridge support, the first jack adjusts the ramp structure sections in S2 so as to align and splice adjacent ramp structure sections, the whole ramp main body is supported in S4 so as to disperse the load of the ramp main body, the stability of the ramp is improved when the ramp bridge is arched, and the ramp main body is adjusted up and down and provides supporting force for the ramp main body in S5 bridge arch construction;
3. The temporary support of the ramp bridge is built, meanwhile, a part of the ramp main body is firstly constructed, namely, a ramp pier foundation is firstly constructed, and the ramp pier main body construction is completed before the temporary support of the ramp bridge is dismantled in S7, so that the construction efficiency is improved, the ramp bridge is used as a permanent supporting structure, the ramp pier is supported, and the stability of the ramp bridge after the pedestrian is improved.
Drawings
Fig. 1 is a schematic perspective view of a construction method for connecting a pedestrian bridge with an existing building.
Fig. 2 is a schematic diagram of connection between a pedestrian ramp body and an existing building body before a pedestrian bridge body arches in a construction method for connecting the pedestrian ramp with the existing building according to an embodiment of the present application.
Fig. 3 is a schematic diagram of connection between a pedestrian ramp body and a pedestrian bridge body before the bridge body arches in a construction method for connecting the pedestrian ramp with an existing building according to an embodiment of the present application.
Fig. 4 is a schematic diagram of connection between a pedestrian ramp body and an existing building body after arching of the pedestrian bridge body in a construction method for connecting the pedestrian ramp with the existing building according to an embodiment of the present application.
Reference numerals illustrate: 1. a manway main body; 11. a main bridge structural section; 12. a V leg; 2. a pedestrian ramp main body; 21. ramp structural segments; 3. existing building bodies; 31. outdoor corridor; 4. a first jack; 5. temporary support of ramp bridge; 6. a ramp bridge pile foundation; 61. a ramp pier body; 7. a second jack; 8. a slip structure; 9. a universal joint; 10. temporary support of main bridge.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp. Referring to fig. 1, in this embodiment, the entire pedestrian bridge is a steel structure arch bridge, two ends of the pedestrian bridge are respectively located on two lands, and the middle of the pedestrian bridge is a steel box girder structure. The steel box girder structures of the pedestrian bridge main body 1 and the pedestrian ramp main body 2 are prefabricated in sections of a factory, and then are transported to the site for hoisting construction. Existing building is located the bank, and pedestrian ramp main part 2 connects pedestrian bridge main part 1 and existing building main part 3, and pedestrian ramp main part 2 also adopts the steel case roof beam structure, and pedestrian ramp main part 2 can alleviate pedestrian bridge traffic pressure, reaches the seamless sightseeing of two banks and experiences the requirement.
Referring to fig. 2 and 3, in order to ensure the efficiency of synchronous construction of a pedestrian ramp and a pedestrian bridge, the application discloses a construction method for connecting the pedestrian ramp with the existing building, which comprises the following steps:
S1: and 6, synchronously constructing a pedestrian bridge main bridge pile foundation and a pedestrian ramp bridge pile foundation: in the construction link of a pedestrian bridge, foundation treatment is firstly carried out on two sides of a river, foundation pit excavation is carried out, pile foundation is constructed by adopting rotary excavation drilling hole forming construction, a pile foundation cap is constructed by adopting a steel pipe pile cofferdam, meanwhile, an angle steel framework is erected on the pile foundation cap in the reinforcing steel bar construction, and the accurate positions of an arch hinge base, an anchor plate and the like of the pre-buried V leg 12 are ensured.
Meanwhile, a steel trestle is built in water and used as a construction platform for transporting steel box girders and hoisting a crane.
In the construction link of the sidewalk ramp, the site is firstly leveled, the drilling construction is completed, and the construction of the sidewalk ramp bridge pile foundation 6 is completed.
S2: synchronous construction is carried out on a temporary support 10 of a main bridge of the pedestrian bridge and a temporary support 5 of a ramp bridge, wherein the temporary supports are steel pipe piles with phi 630 multiplied by 10mm, one group of six supports are arranged, one group of eight supports are arranged at the central position of Y, double-spliced HM588 is adopted for pile top distribution beams, and phi 426 steel pipes are adopted for connection systems.
Two bidirectional jacks are arranged at the tops of the main bridge temporary support 10 and the ramp bridge temporary support 5 for vertical and horizontal fine adjustment of the steel box girder structure, wherein the first jack 4 is used for vertical adjustment of the steel box girder structure. In addition, the temporary support 5 of the ramp bridge is built, and meanwhile, the lower section of the ramp bridge pier is also constructed on the ramp bridge pile foundation 6, so that preparation is made for constructing the ramp bridge pier main body 61.
S3: synchronous hoisting construction of the pedestrian bridge main bridge structural section 11 and the ramp structural section 21:
in this embodiment, the main bridge structural section 11 of the pedestrian bridge is lifted by using an automobile crane, and the automobile crane travels on a trestle, and the main bridge structural section 11 is lifted onto the main bridge temporary support 10.
The ramp structure section 21 is hoisted by adopting a large-tonnage automobile crane, and the ramp structure section 21 is hoisted to the ramp bridge temporary support 5 and supported by the first jack 4. In addition, the sliding structure 8 is arranged at the bottom of the ramp structure section 21 close to the main bridge of the pedestrian bridge, the sliding structure 8 comprises a supporting plate and a plurality of rollers arranged at the bottom of the supporting plate, the ramp structure section 21 is connected with the supporting plate through the universal joint 9, and the flexibility of the sliding structure 8 is improved. The glide structure 8 is placed on one of the main bridge structure segments 11 with the roller abutting against the upper surface of the main bridge structure segment 11.
The railing of the outdoor corridor 31 of the existing building main body 3, which is close to the ramp of the pedestrian, is removed in advance, then one end of the ramp structure section 21, which is close to the existing building main body 3, is hung on the outdoor corridor 31 outside the existing building main body 3, a group of first jacks 4 are additionally arranged between the outdoor corridor 31 and the ramp structure section 21, and the ramp structure section 21 is supported and adjusted by the first jacks 4.
S4: adjacent main bridge structural sections 11 are connected and form a pedestrian bridge body 1, and adjacent ramp structural sections 21 are connected and form a pedestrian ramp body 2. When the adjacent ramp structure segments 21 are connected, the positions of the ramp structures are adjusted up and down by the first jack 4 so that the adjacent ramp structure segments 21 are aligned and welded.
Before the arch-forming construction of the pedestrian bridge, the pedestrian ramp main body 2 is in an inclined state, the inclined upper end of the pedestrian ramp main body 2 faces the existing building main body 3, and the inclined lower end of the pedestrian ramp main body 2 faces the pedestrian bridge main body 1.
S5: the temporary support 10 of the main bridge of the pedestrian bridge is removed, the main bridge structure of the pedestrian bridge is arched, the middle part of the pedestrian bridge is arched through stretching the rear pull rods of the V legs 12 at the two ends of the main body 1 of the pedestrian bridge, and the connection part of the ramp main body 2 and the main body 1 of the pedestrian bridge is in relative sliding under the rolling action of the rollers of the sliding structure 8.
Then, a supporting structure is arranged on the upper surface of the pedestrian bridge main body 1, and the supporting structure is positioned below the pedestrian ramp main body 2. The supporting structure is specifically a second jack 7, the second jack 7 supports one end of the pedestrian ramp main body 2 at the pedestrian bridge main body 1, then the sliding structure 8 is removed, at the moment, the first jack 4 at the top of each ramp bridge temporary support 5 is matched with the second jack 7 to support the pedestrian ramp main body 2 upwards, supporting force is provided for the pedestrian bridge main body 1, and the inclined upper end of the pedestrian ramp main body 2 moves upwards until the pedestrian ramp main body 2 reaches a set inclination angle.
In addition, before the temporary support 5 of the ramp bridge is removed, the ramp pier main body 61 above the ramp bridge pile foundation 6 is constructed, and the ramp pier main body 61 plays a supporting role for the sidewalk ramp main body 2.
S6: and pouring construction is performed at the joint of the pedestrian bridge main body 1 and the pedestrian ramp main body 2, and pouring construction is performed at the joint of the pedestrian ramp main body 2 and the existing building main body 3.
Referring to fig. 3, reinforcing bars are implanted in the junction with the pedestrian ramp body 2 in the pedestrian bridge body 1, and in the junction with the pedestrian ramp body 2 in the outdoor corridor 31 of the existing building body 3. Then, a template is built at the joint of the pedestrian bridge main body 1 and the pedestrian ramp main body 2, a template is built at the joint of the pedestrian ramp main body 2 and the existing building main body 3, steel bars are bound in the template, then, concrete pouring construction is carried out at the joint of the pedestrian bridge main body 1 and the pedestrian ramp main body 2, and concrete pouring construction is carried out at the joint of the pedestrian ramp main body 2 and the existing building main body 3, and the first jack 4 and the second jack 7 are buried in concrete. And finishing the connection of the pedestrian ramp and the pedestrian bridge and the existing building construction.
In addition, since the two ends of the pedestrian ramp main body 2 are erected on the surfaces of the pedestrian bridge main body 1 and the outdoor corridor 31 of the existing building main body 3, the surfaces of the pedestrian bridge main body 1 and the surfaces of the outdoor corridor 31 are all arranged in a protruding manner, and therefore a slope-releasing manner or a step construction manner can be adopted, and the surfaces of the two ends of the pedestrian ramp main body 2 are respectively connected with the surfaces of the pedestrian bridge main body 1 and the surfaces of the outdoor corridor 31, so that tourists can pass.
S7: after the construction of the ramp bridge pier main body 61 is completed, the ramp bridge temporary support 5 is removed.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp is characterized by comprising the following steps: the method comprises the following steps:
s1: synchronous construction of a pedestrian bridge main bridge pile foundation and a pedestrian ramp bridge pile foundation (6);
s2: the temporary support (10) of the main bridge of the pedestrian bridge and the temporary support (5) of the ramp bridge are constructed synchronously;
S3: synchronous hoisting construction of the pedestrian bridge main bridge structural section (11) and the ramp structural section (21): hanging the main bridge structural section (11) on a main bridge temporary support (10), hanging the ramp structural section (21) on the ramp bridge temporary support (5), and installing a sliding structure (8) at the bottom of the ramp structural section (21) close to the main bridge of the pedestrian bridge, wherein the sliding structure (8) is arranged on one main bridge structural section (11); one end of the ramp structure section (21) close to the existing building main body (3) is hung on an outdoor corridor (31) outside the existing building main body (3);
S4: connecting adjacent main bridge structural sections (11) and forming a pedestrian bridge main body (1), and connecting adjacent ramp structural sections (21) and forming a pedestrian ramp main body (2);
S5: removing a temporary support (10) of a main bridge of the pedestrian bridge, performing arch-forming construction on a main bridge structure of the pedestrian bridge, and enabling a junction of a ramp main body (2) and a main body (1) of the pedestrian bridge to relatively slide under the action of a sliding structure (8);
S6: casting construction is performed at the joint of the pedestrian bridge main body (1) and the pedestrian ramp main body (2), and casting construction is performed at the joint of the pedestrian ramp main body (2) and the existing building main body (3);
s7: and removing the temporary support (5) of the ramp bridge.
2. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 1, wherein the construction method comprises the following steps: the sliding structure (8) comprises a supporting plate and rollers arranged at the bottom of the supporting plate, and the ramp structure sections (21) are connected with the supporting plate through universal joints (9).
3. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 1, wherein the construction method comprises the following steps: in the S2, a first jack (4) is arranged on each ramp bridge temporary support (5), and when the ramp structure section (21) is hoisted to the ramp bridge temporary support (5), the first jack (4) supports the bottom of the ramp structure section (21); in the step of connecting adjacent ramp structure segments (21) of the S4, the first jack (4) adjusts the height positions of the corresponding ramp structure segments (21) up and down so as to splice the adjacent ramp structure segments (21).
4. A method for constructing a pedestrian bridge and an existing building connected with a pedestrian ramp according to claim 3, wherein: in the arch-lifting construction of the pedestrian bridge of the S5, a first jack (4) on each ramp bridge temporary support (5) adjusts the ramp main body up and down so that the first jack (4) jacks up and provides supporting force for the pedestrian ramp main body (2) in the process of upwards moving the joint of the pedestrian ramp main body (2) and the pedestrian bridge main body (1).
5. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 4, wherein: before the connection part of the pedestrian bridge main body (1) and the pedestrian ramp main body (2) is poured and constructed in S6, a supporting structure is installed, the supporting structure supports one end of the pedestrian ramp main body (2) at the pedestrian bridge main body (1), then the sliding structure (8) is removed, then a template is built at the connection part of the pedestrian bridge main body (1) and the pedestrian ramp main body (2), and then concrete pouring construction is carried out at the connection part of the pedestrian bridge main body (1) and the pedestrian ramp main body (2).
6. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 5, wherein: the support structure is a second jack (7), and after the sliding structure (8) is removed, the second jack (7) is matched with the first jack (4) so as to jack up the sidewalk ramp main body (2) to adjust the inclination angle of the sidewalk ramp main body (2).
7. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 1, wherein the construction method comprises the following steps: and (2) constructing a temporary ramp bridge bracket (5) in the S2, and constructing the lower section of the ramp pier main body (61) on the ramp bridge pile foundation (6).
8. The construction method for connecting a pedestrian bridge with an existing building and a pedestrian ramp according to claim 7, wherein: before the ramp bridge temporary support (5) is dismantled in S7, the ramp bridge pier main body (61) above the ramp bridge pile foundation (6) is constructed, the ramp bridge pier main body (61) plays a supporting role for the sidewalk ramp main body (2), and after the ramp bridge pier main body (61) is constructed, the ramp bridge temporary support (5) is dismantled.
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