CN211523835U - Prefabricated staircase and building structure - Google Patents
Prefabricated staircase and building structure Download PDFInfo
- Publication number
- CN211523835U CN211523835U CN201921816569.XU CN201921816569U CN211523835U CN 211523835 U CN211523835 U CN 211523835U CN 201921816569 U CN201921816569 U CN 201921816569U CN 211523835 U CN211523835 U CN 211523835U
- Authority
- CN
- China
- Prior art keywords
- horizontal
- stair
- section
- prefabricated staircase
- horizontal section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A prefabricated staircase and a building structure, wherein the prefabricated staircase comprises a column structure, a first staircase component, a second staircase component and a pedal; specifically, the upright post structure provides support for the prefabricated staircase; the first stair component is detachably connected with the upright post structure; the second stair component is detachably connected with the upright post structure and is positioned at the same side as the first stair component; the first stair assembly comprises a first horizontal portion and a first inclined portion; the second stair assembly comprises a second horizontal portion and a second inclined portion; the end part of the first horizontal part and the end part of the second horizontal part are respectively detachably connected with the upright post structure and are arranged on the same horizontal plane; the end part of the first horizontal part is higher than the end part of the first inclined part; the end part of the second horizontal part is lower than the end part of the second inclined part; the pedal is detachably connected with the first inclined part and the second inclined part respectively. Adopt this kind of prefabricated staircase, be convenient for assemble and dismantlement to it is accurate to fix a position during the installation.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a prefabricated stair and building structure.
Background
At present, the domestic stair structure mainly adopts two types of the traditional reinforced concrete cast-in-place stair and the common prefabricated stair. The traditional reinforced concrete stairs need to reappear the site cast-in-place concrete process and have long maintenance time, and the requirements of green construction, construction implementation and the like can not be met under the rapid development of building industrialization. Ordinary prefabricated staircase compares with concrete stair has many advantages, but still has not enough in present design and construction, and ordinary steel construction installation location is relatively poor, needs on-the-spot tack weld, and the construction is inconvenient with the adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an equipment and dismantlement of being convenient for, location accurate prefabricated stair and building structure during the installation.
In order to solve the problems, the utility model provides a prefabricated staircase, which comprises a vertical column structure, a first staircase component, a second staircase component and a pedal; specifically, the upright post structure provides support for the prefabricated staircase; the first stair assembly is detachably connected with the upright post structure; the second stair component is detachably connected with the upright post structure and is positioned at the same side as the first stair component; the first stair assembly comprises a first horizontal portion and a first inclined portion; the second stair assembly comprises a second horizontal portion and a second inclined portion; the end part of the first horizontal part and the end part of the second horizontal part are respectively detachably connected with the upright post structure and are arranged on the same horizontal plane; the end part of the first horizontal part is higher than the end part of the first inclined part; an end of the second horizontal portion is lower than an end of the second inclined portion; the pedal is detachably connected with the first inclined portion and the second inclined portion respectively.
Furthermore, the first stair assembly comprises a first stair beam and a second stair beam which are arranged adjacently and at an interval; the first stair beam comprises a first horizontal section and a first inclined section; the second stair beam comprises a second horizontal section and a second inclined section; the first horizontal section and the second horizontal section are arranged on the same horizontal plane and are arranged in parallel; the first inclined section and the second inclined section are arranged on the same horizontal plane and are arranged in parallel; the first horizontal portion comprises the first horizontal section and the second horizontal section; the second stair component comprises a third stair beam and a fourth stair beam which are adjacent and arranged at intervals; the third stair beam comprises a third horizontal section and a third inclined section; the fourth stair beam comprises a fourth horizontal section and a fourth inclined section; the third horizontal section and the fourth horizontal section are arranged on the same horizontal plane and are arranged in parallel; the third inclined section and the fourth inclined section are arranged on the same horizontal plane and are arranged in parallel; the second horizontal portion includes the third horizontal section and the fourth horizontal section.
Further, the upright post structure comprises a support post and a support beam; the end parts of the first horizontal section and the second horizontal section are respectively detachably connected with the supporting column; the supporting beam is connected with the end parts of the first horizontal section and the second horizontal section in a detachable way; the end parts of the third horizontal section and the fourth horizontal section are respectively detachably connected with the supporting beam.
Furthermore, the support column is a column with a C-shaped opening, and the ends of the first horizontal section and the second horizontal section are respectively arranged on the opposite sides of the opening direction of the support column.
Further, the first stair beam, the second stair beam, the third stair beam and the fourth stair beam are Z-shaped beams and comprise mounting surfaces, support plates and reinforcing surfaces; the mounting surface is perpendicular to the support plate; the strengthening surface is perpendicular to the supporting plate; the mounting surface and the reinforcing surface are respectively arranged on two sides of the supporting plate.
Further, the mounting surfaces of the first inclined section, the second inclined section, the third inclined section and the fourth inclined section are provided with mounting holes for mounting the pedal.
Furthermore, the mounting hole is a through hole, and a bolt penetrates and extends out of the bottom of the mounting hole; the pedal is provided with a connecting hole matched with the bolt at a position corresponding to the mounting hole, the bolt penetrates through the connecting hole, and the pedal is screwed and fixed through a nut.
Further, the prefabricated staircase still includes: the first cross beam is detachably connected with the top end of the upright post structure; and the second cross beam is detachably connected with the end part of the second inclined part, and is arranged on the same horizontal plane and in parallel with the first cross beam.
Further, the prefabricated staircase still includes the apron, the apron sets up the top surface at first horizontal part and second horizontal part.
The utility model also provides a building structure, which comprises a plurality of the prefabricated stairs, and the prefabricated stairs are superposed; the upright post structure of the prefabricated staircase on the upper layer is detachably connected with the first cross beam of the prefabricated staircase on the lower layer; the upper strata prefabricated staircase the tip of first rake with lower floor prefabricated staircase the second crossbeam can be dismantled and be connected, and with the lower floor prefabricated staircase the tip of first rake sets up at same horizontal plane.
The above technical scheme of the utility model has following profitable technological effect:
and the full-bolt connection is adopted, no welding method is adopted, and the rapid and accurate installation on site is realized.
Drawings
Fig. 1 is a schematic structural view of a prefabricated staircase provided by the present invention;
fig. 2 is a schematic view of another embodiment of the present invention, showing a prefabricated staircase structure;
FIG. 3 is a schematic view of the pedal structure provided by the present invention;
fig. 4 is a schematic view of the connection of the first stair beam, the second stair beam, the stair connecting member and the second ground beam provided by the present invention;
fig. 5 is a schematic connection diagram of a third stair beam, a fourth stair beam and a second cross beam provided by the present invention;
FIG. 6 is a schematic view of the connection of the fixing member, the top end pedal, the pedal and the second beam provided by the present invention;
fig. 7 is a schematic structural view of the prefabricated pedal provided by the present invention.
Reference numerals:
1: a pedal; 2: a first stair rail; 21: a first horizontal segment; 22: a first inclined section; 3: a second stair rail; 31: a second horizontal segment; 32: a second inclined section; 4: a third stair rail; 41: a third horizontal segment; 42: a third inclined section; 5: a fourth stair stringer; 51: a fourth horizontal segment; 52: a fourth inclined section; 6: a support pillar; 7: a support beam; 8: a first cross member; 9: a second cross member; 10: and (7) a cover plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is the utility model provides a pair of prefabricated staircase structure sketch map.
The embodiment of the utility model provides a prefabricated staircase, as shown in fig. 1, comprising a column structure, a first staircase component, a second staircase component and a tread 1;
the stand structure provides the support for prefabricated staircase. First stair subassembly and second stair subassembly set up structurally at the stand to both homonymy sets up. The first stair component comprises a first horizontal part and a first inclined part, and the first horizontal part is connected with the first inclined part; the second stair component comprises a second horizontal part and a second inclined part, and the second horizontal part is connected with the second inclined part; the end part of the first horizontal part and the end part of the second horizontal part are respectively connected with the upright post structure and are arranged on the same horizontal plane; the end part of the first horizontal part is higher than the end part of the first inclined part; the end part of the second horizontal part is lower than the end part of the second inclined part; the step 1 is provided on the first and second inclined portions. Wherein, stand structure, first stair subassembly, second stair subassembly and footboard can dismantle the connection between 1, can connect fixedly through prefabricated bolt and corresponding trompil.
The components forming the prefabricated staircase are all produced industrially, assembled in a modularized mode, the structural structure of the prefabricated staircase adopts a prefabricated steel structure full-bolt connection mode, welding is not needed, and 100% prefabrication and more than 95% recycling can be achieved.
Fig. 2 is a schematic view of another embodiment of the present invention, showing a prefabricated staircase structure.
In another embodiment, specifically, as shown in fig. 2, the first stair assembly comprises a first stair beam 2 and a second stair beam 3 which are adjacently and separately arranged; the first stair beam 2 and the second stair beam 3 have the same structure, and the first stair beam 2 comprises a first horizontal section 21 and a first inclined section 22; the second stair girder 3 comprises a second horizontal section 31 and a second inclined section 32. The horizontal sections and the inclined sections of the first stair beam 2 and the second stair beam 3 are connected by welding, and the included angle between the two ends is larger than 90 degrees and smaller than 150 degrees. The first horizontal section 21 and the second horizontal section 31 are arranged on the same horizontal plane and are arranged in parallel; the first inclined section 22 and the second inclined section 32 are arranged on the same horizontal plane and are arranged in parallel; the first horizontal portion includes a first horizontal section 21 and a second horizontal section 31.
The second stair subassembly includes adjacent third stair roof beam 4 and the fourth stair roof beam 5 that sets up just at the interval, and third stair roof beam 4 is the same with fourth stair roof beam 5 structure, and above-mentioned horizontal segment and the slope section of third stair roof beam 4 and fourth stair roof beam 5 structure pass through welded connection, and two sections contained angles are greater than 90, are less than 150. The third stair beam 4 comprises a third horizontal section 41 and a third inclined section 42, the fourth stair beam 5 comprises a fourth horizontal section 51 and a fourth inclined section 52, the third horizontal section 41 and the fourth horizontal section 51 are arranged on the same horizontal plane and are arranged in parallel, and the third inclined section 42 and the fourth inclined section 52 are arranged on the same horizontal plane and are arranged in parallel; the second horizontal portion includes a third horizontal section 41 and the fourth horizontal section 51.
In another embodiment, in particular, the column structure comprises a support column 6 and a support beam 7. The vertical setting of support column 6, support column 6 are C type open-ended stand, and the tip of first horizontal segment 21 and second horizontal segment 31 is provided with support column 6 connecting portion respectively, and this support column 6 connecting portion pass through welded fastening at the tip of first horizontal segment 21 and second horizontal segment 31, and support column 6 connecting portion and support column 6 are through predetermined trompil and bolt fastening. The ends of the first horizontal segment 21 and the second horizontal segment 31 are respectively connected with the supporting column 6, wherein the ends of the first horizontal segment 21 and the second horizontal segment 31 are respectively arranged on the opposite sides of the opening direction of the supporting column 6. The support beam 7 is a C-shaped opening support beam 7, the support beam 7 is opened toward the support column 6 and horizontally disposed, and connects the ends of the first horizontal section 21 and the second horizontal section 31. The ends of the third horizontal segment 41 and the fourth horizontal segment 51 are respectively connected with the opposite opening sides of the support beam 7.
In another embodiment, in particular, different from the previous embodiment, the prefabricated staircase is arranged on a first ground beam and a second ground beam which are arranged at intervals. Two support columns 6 are vertically arranged on the top surface of the first ground beam, and the end part of the first inclined part is arranged on the second ground beam. The support column 6 is fixedly connected with an anchor bolt which is embedded when the first ground beam is cast in place through the first ground beam.
In another embodiment, in particular, the first 2, second 3, third 4 and fourth 5 stair girders are Z-shaped girders. The Z-shaped beam comprises a mounting surface, a supporting plate and a reinforcing surface, wherein the mounting surface is perpendicular to the supporting plate, the reinforcing surface is perpendicular to the supporting plate, the mounting surface and the reinforcing surface are respectively arranged on two sides of the supporting plate, and the mounting surface faces upwards. The supporting plates of the first stair beam 2 and the second stair beam 3 are arranged in parallel, and the reinforced parts of the first stair beam 2 and the second stair beam 3 are arranged close to each other; the support plates of the third stair beam 4 and the fourth stair beam 5 are arranged in parallel, and the reinforced parts of the third stair beam 4 and the fourth stair beam 5 are arranged close to each other.
Fig. 3 is a schematic view of the pedal structure provided by the present invention.
The mounting surfaces of the first inclined section 22, the second inclined section 32, the third inclined section 42 and the fourth inclined section 52 are respectively provided with mounting holes through which the pedal 1 is mounted. Specifically, the mounting hole is a through hole, and the bolt penetrates and extends out of the bottom of the mounting hole. The step height and the step width of the composite specification are calculated according to the height of the floor, as shown in fig. 5, the side surface of the pedal 1 is approximately triangular, the position of the pedal 1 relative to the installation hole is provided with a connecting part of the pedal 1, the connecting part of the pedal 1 is provided with a connecting hole matched with a bolt, the bolt passes through the connecting hole, and the pedal 1 is screwed and fixed through a nut.
Fig. 4 is a schematic view of the connection between the first stair beam, the second stair beam, the stair connecting member and the second ground beam provided by the present invention.
In another embodiment, specifically, as shown in fig. 3, the prefabricated staircase further comprises a staircase connection member. The stair connecting piece sets up on the second grade beam, pre-buried crab-bolt and second grade beam fixed connection when stair connecting piece bottom is cast in situ through the second grade beam also can directly set up expansion bolts or other mountings on the second grade beam during later stage construction. A stair connector connects the ends of the first 22 and second 32 inclined sections for securing the ends of the first inclined section to the second ground beam.
Fig. 5 is a schematic view of the connection of the third stair beam, the fourth stair beam and the second cross beam provided by the present invention.
In another embodiment, the prefabricated staircase further comprises a first cross beam 8 and a second cross beam 9, the first ground beam is arranged at the top end of the supporting column 6, and the first cross beam 8 is connected with the geological stratification main through a prefabricated hole and a bolt. The second beam 9 is arranged at the end of the second inclined part, which is provided with a connection plate, connected with the preformed hole of the second beam 9 by means of bolts. The second beam 9 and the first beam 8 are arranged on the same horizontal plane and are arranged in parallel.
The prefabricated staircase further comprises a cover plate 10, and the cover plate 10 is arranged on the top surfaces of the first horizontal part and the second horizontal part. The cover plate 10 may be a glass plate, a steel plate, or a plate made of other materials. The cover plate 10 is fixed to the top surfaces of the first and second horizontal portions by a fixing means suitable for the material thereof. For example, the cover plate 10 is made of a steel plate, and may be fixed to top surfaces of the first horizontal portion and the second horizontal portion by welding. The cover 10 forms a transition platform for the turning of the top stairs connected by the bottom stairs, which facilitates the walking, staying and turning of the pedestrians.
Fig. 6 is a schematic view of the connection of the fixing member, the top end pedal, the pedal and the second beam provided by the present invention.
Fig. 7 is a schematic structural view of the prefabricated pedal provided by the present invention.
As shown in fig. 6-7, the prefabricated staircase further comprises a fixing member and prefabricated steps. Prefabricated footboard is the footboard 1 that is closest to second slope portion tip, prefabricated footboard can be the steel, glass, material such as timber supports, prefabricated footboard is for cooperation floor ground ALC air entrainment concrete floor and surface self-leveling construction needs to reserve and compensate floor material construction difference in height and tip limit structure, its joint construction is unanimous with other stair tread 1, the different place is that prefabricated footboard still is provided with a prefabricated step portion, this prefabricated step portion sets up the top at second crossbeam 9, the below of prefabricated step portion plane portion, the vertical portion of prefabricated step portion plane portion is provided with the prefabricated connecting plate parallel with prefabricated step portion plane portion towards one side of plane portion.
The fixing piece is a square pipe, is arranged on the top surface of the second cross beam 9, and is connected with the prefabricated connecting plate and the second cross beam 9. The prefabricated step part can compensate the thickness of the later floor construction decorative surface. The fixing member is used to reinforce the strength of the prefabricated step.
The utility model also provides a building structure, which comprises a plurality of the prefabricated stairs, and the prefabricated stairs are superposed; the upright column structure of the upper prefabricated staircase is arranged on the first cross beam 8 of the lower prefabricated staircase; the end of the first inclined part of the prefabricated staircase on the upper layer is arranged on the second cross beam 9 of the prefabricated staircase on the lower layer, and is arranged on the same horizontal plane with the end of the first inclined part of the prefabricated staircase on the lower layer. Can be according to actual conditions, prefabricated stair superpose increases the stair number of piles.
The above technical scheme of the utility model has following profitable technological effect:
and the full-bolt connection is adopted, no welding method is adopted, and the rapid and accurate installation on site is realized.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A prefabricated staircase, characterized by comprising a post structure, a first staircase component, a second staircase component and a tread (1); in particular, the method comprises the following steps of,
the upright post structure provides support for the prefabricated staircase;
the first stair assembly is detachably connected with the upright post structure;
the second stair component is detachably connected with the upright post structure and is positioned at the same side as the first stair component;
the first stair assembly comprises a first horizontal portion and a first inclined portion;
the second stair assembly comprises a second horizontal portion and a second inclined portion;
the end part of the first horizontal part and the end part of the second horizontal part are respectively detachably connected with the upright post structure and are arranged on the same horizontal plane;
the end part of the first horizontal part is higher than the end part of the first inclined part;
an end of the second horizontal portion is lower than an end of the second inclined portion;
the pedal (1) is detachably connected with the first inclined part and the second inclined part respectively.
2. The prefabricated staircase of claim 1,
the first stair component comprises a first stair beam (2) and a second stair beam (3) which are arranged adjacently and at intervals;
the first stair beam (2) comprises a first horizontal section (21) and a first inclined section (22);
the second stair beam (3) comprises a second horizontal section (31) and a second inclined section (32);
the first horizontal section (21) and the second horizontal section (31) are arranged on the same horizontal plane and are arranged in parallel;
the first inclined section (22) and the second inclined section (32) are arranged on the same horizontal plane and are arranged in parallel;
the first horizontal portion comprises the first horizontal section (21) and the second horizontal section (31);
the second stair component comprises a third stair beam (4) and a fourth stair beam (5) which are adjacent and arranged at intervals;
the third stair beam (4) comprises a third horizontal section (41) and a third inclined section (42);
the fourth stair girder (5) comprises a fourth horizontal section (51) and a fourth inclined section (52);
the third horizontal section (41) and the fourth horizontal section (51) are arranged on the same horizontal plane and are arranged in parallel;
the third inclined section (42) and the fourth inclined section (52) are arranged on the same horizontal plane and are arranged in parallel;
the second horizontal portion includes the third horizontal section (41) and the fourth horizontal section (51).
3. The prefabricated staircase of claim 2,
the upright post structure comprises a support post (6) and a support beam (7);
the ends of the first horizontal section (21) and the second horizontal section (31) are respectively detachably connected with the supporting column (6);
the supporting beam (7) is detachably connected with the end parts of the first horizontal section (21) and the second horizontal section (31) respectively;
the ends of the third horizontal section (41) and the fourth horizontal section (51) are respectively detachably connected with the supporting beam (7).
4. The prefabricated staircase of claim 3,
the supporting column (6) is a column with a C-shaped opening, and the ends of the first horizontal section (21) and the second horizontal section (31) are respectively arranged on the reverse sides of the opening direction of the supporting column (6).
5. The prefabricated staircase of claim 2,
the first stair beam (2), the second stair beam (3), the third stair beam (4) and the fourth stair beam (5) are Z-shaped beams and comprise mounting surfaces, support plates and reinforcing surfaces;
the mounting surface is perpendicular to the support plate;
the strengthening surface is perpendicular to the supporting plate;
the mounting surface and the reinforcing surface are respectively arranged on two sides of the supporting plate.
6. The prefabricated staircase of claim 5,
the mounting surfaces of the first inclined section (22), the second inclined section (32), the third inclined section (42) and the fourth inclined section (52) are provided with mounting holes for mounting the pedal (1).
7. The prefabricated staircase of claim 6,
the mounting hole is a through hole, and a bolt penetrates and extends out of the bottom of the mounting hole;
the pedal (1) is provided with a connecting hole matched with the bolt at a position corresponding to the mounting hole, the bolt penetrates through the connecting hole, and the pedal (1) is screwed and fixed through a nut.
8. The prefabricated staircase of claim 1, further comprising:
the first cross beam (8) is detachably connected with the top end of the upright post structure;
and the second cross beam (9) is detachably connected with the end part of the second inclined part, and is arranged on the same horizontal plane and in parallel with the first cross beam (8).
9. The pre-cast staircase according to claim 1 or 2, characterised in that it further comprises a cover plate (10),
the cover plate (10) is arranged on the top surfaces of the first horizontal part and the second horizontal part.
10. A building structure is characterized by comprising a plurality of prefabricated stairs 1-9, wherein the prefabricated stairs are arranged in a superposition mode;
the upright post structure of the prefabricated staircase on the upper layer is detachably connected with the first cross beam (8) of the prefabricated staircase on the lower layer;
the prefabricated staircase on the upper floor the tip of first slope portion with lower floor the prefabricated staircase second crossbeam (9) can dismantle the connection, and with the lower floor the prefabricated staircase the tip of first slope portion sets up at same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816569.XU CN211523835U (en) | 2019-10-25 | 2019-10-25 | Prefabricated staircase and building structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816569.XU CN211523835U (en) | 2019-10-25 | 2019-10-25 | Prefabricated staircase and building structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211523835U true CN211523835U (en) | 2020-09-18 |
Family
ID=72442558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921816569.XU Active CN211523835U (en) | 2019-10-25 | 2019-10-25 | Prefabricated staircase and building structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211523835U (en) |
-
2019
- 2019-10-25 CN CN201921816569.XU patent/CN211523835U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102187993B1 (en) | Prefabricated Bridge Structure and Construction Method | |
| CN109183614B (en) | Cable trough main bearing T-beam composite sidewalk and installation method thereof | |
| CN203475598U (en) | Shock-proof prefabricated building of steel bar truss shearing wall composite structure | |
| CN110886227B (en) | Main tower cast-in-place lower cross beam support system and construction method | |
| CN111663449A (en) | Combined cast-in-place box girder support system and construction method | |
| KR102221132B1 (en) | Cut-off slope inspection road and its construction method | |
| CN206815525U (en) | A kind of orbit traffic overhead station | |
| CN211523835U (en) | Prefabricated staircase and building structure | |
| CN208202224U (en) | A kind of prefabricated steel reinforced concrete shear wall structure of multilayer | |
| KR100613862B1 (en) | Light weight pc-steelgirder bridge construction | |
| CN214996345U (en) | Assembled overhanging pedestrian escalator for deep foundation pit | |
| CN104831928A (en) | Construction method for high-altitude large-span concrete connected structure formwork supporting steel platform | |
| CN211473320U (en) | Tool type external hanging rack for corridor | |
| CN211171556U (en) | Aluminum alloy pedestrian bridge | |
| CN211395312U (en) | Upper structure for wide box girder and short tower cable-stayed bridge | |
| CN113802688B (en) | Full-assembled corridor and installation method thereof | |
| CN213143656U (en) | Be applied to combination ladder roof beam of steel construction precast concrete stair | |
| CN110820553A (en) | Combined prefabricated bridge guardrail | |
| CN212612004U (en) | Modular cast-in-place box girder braced system | |
| CN219887182U (en) | Assembled stair embedded bolt positioning device | |
| CN113513174B (en) | Inverse installation method for steel truss hanging type structure | |
| CN217678621U (en) | Foundation structure of standard H-shaped steel tower | |
| CN216075597U (en) | Prefabricated post and precast beam connected node | |
| CN214695099U (en) | Assembled steel construction passenger footbridge | |
| CN216586210U (en) | Side-hanging type full-suspension cover beam combined support platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |