CN207959751U - A kind of precast prestressed concrete beam formula stair - Google Patents
A kind of precast prestressed concrete beam formula stair Download PDFInfo
- Publication number
- CN207959751U CN207959751U CN201820250922.1U CN201820250922U CN207959751U CN 207959751 U CN207959751 U CN 207959751U CN 201820250922 U CN201820250922 U CN 201820250922U CN 207959751 U CN207959751 U CN 207959751U
- Authority
- CN
- China
- Prior art keywords
- stringer
- stair
- ontology
- type stairway
- upper layer
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of precast prestressed concrete beam formula stair, belong to construction engineering technical field, its structure includes the upper layer stair stringer of stringer type stairway ontology and support stringer type stairway ontology, lower layer's stair stringer, stringer type stairway ontology includes bench cant beam and ladder-like marks time, bench cant beam is arranged along stringer type stairway body length direction, the both ends marked time are supported on bench cant beam, the both ends of stringer type stairway ontology respectively with upper layer stair stringer, lower layer's stair stringer is connected, bench cant beam lower part arrangement prestress reinforcing bar along its length, top regular reinforcement is arranged on bench cant beam top along its length, the outside of deformed bar and top regular reinforcement is equally spaced stirrup along its length, deformed bar and top regular reinforcement are located in stirrup, it is described mark time in be provided with distribution bar of marking time.The utility model have the characteristics that applicable span is big, cracking resistance is good, from heavy and light, be easy to lift and transport and excellent earthquake resistance.
Description
Technical field
The utility model is related to a kind of construction engineering technical fields, especially a kind of precast prestressed concrete beam formula building
Ladder.
Background technology
The stair component as floor gap vertical transportation between floors, be responsible for flow of personnel, disaster escape it is important
Function.The construction method of reinforced concrete stairs has two kinds of integral cast-in-situ and prefabrication and assembly construction.The branch die process of integral cast-in-situ stair
Complicated and mold cannot reuse, therefore be built on-site and expend more working hour, long construction period, construction cost height and environmental pollution
The shortcomings of weight.
As China is to the raising of green construction, energy-saving and emission-reduction requirement and being substantially improved for labour market price, in advance
Assembled building technology processed obtains national and governments at all levels widely popularize.Compared with traditional integral cast-in-situ stair, concrete
Tulou ladder is integral prefabricated in element factory, carries out lifting in place after transport to construction site, therefore repeat and utilize with mold,
The advantages that molding component quality is high, construction cost is low, site operation is easy meets national green, environmental protection, sustainable development are wanted
It asks.
The prefabricated assembled stair of existing extensive application are mostly cranked slab stairs, especially board-like scissors ladder.However, board-like cut
When knife ladder is for the standard width of a room in an old-style house and floor height larger building, its own weight is larger, leads to stair lifting, transport and difficult to install.Separately
Outside, when span is larger its transport and hoisting process in board bottom easily crack, influence follow-up normal use.Therefore, having at this stage must
A kind of novel precast concrete stair is researched and developed, disclosure satisfy that from heavy and light, applicable span is big, cracking resistance is good, install convenient, applies
The requirement of work short time limit.
Utility model content
The technical assignment of the utility model be for the above-mentioned prior art in deficiency a kind of precast prestressed coagulation is provided
Native stringer type stairway, a kind of precast prestressed concrete beam formula stair have be applicable in span is big, cracking resistance is good, from heavy and light, just
In lifting and transport and the characteristics of excellent earthquake resistance.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of precast prestressed concrete beam formula stair include the upper layer of stringer type stairway ontology and support stringer type stairway ontology
Stair stringer, lower layer's stair stringer, the stringer type stairway ontology include bench cant beam and it is ladder-like mark time, bench cant beam is along beam type building
Terraced body length direction setting, the both ends marked time are supported on bench cant beam, and the upper surface marked time is horizontally disposed step surface,
Be provided with tread plate mounting groove on step surface, the both ends of the stringer type stairway ontology respectively with upper layer stair stringer, lower layer's stair
Beam is connected, and arrangement prestress reinforcing bar, bench cant beam top are arranged along its length along its length for the bench cant beam lower part
The outside of top regular reinforcement, deformed bar and top regular reinforcement is equally spaced stirrup, prestress steel along its length
Muscle and top regular reinforcement are located in stirrup, it is described mark time in be provided with distribution bar of marking time.
It is mutually fixed by way of binding between the stirrup and deformed bar and top regular reinforcement.
The deformed bar uses 1570 grades of ΦH4.8 eliminate stress helix rib steel wire.
The front and rear sides of the stringer type stairway ontology are embedded with in-site installation lifting part by close end, and quantity is 4；
The both ends of each in-site installation lifting part are respectively arranged with suspension centre reinforcing rib.
The side of the bench cant beam is embedded with demoulding overturning lifting part, and quantity is 2.
Mounting hole is reserved respectively with upper layer stair stringer and stair stringer lap-joint of lower layer in the stringer type stairway ontology both ends.
In the mounting hole at stringer type stairway ontology both ends, inner cavity one end is stepped hole, and one end is through-hole, the diameter of through-hole and
The diameter macropores of stepped hole are respectively 50mm, and the hole edge of the mounting hole at both ends far from stringer type stairway body end identity distance from more than
100mm, the periphery at each mounting hole is respectively arranged with hole reinforcing rib, and hole reinforcing rib is respectively two at each mounting hole
It is a, distribution setting up and down, a diameter of 10mm of each hole reinforcing rib.
The end set of the upper layer stair stringer has upper layer L-shaped to overlap platform, and the end set of lower layer's stair stringer has lower layer L
Shape overlaps platform, and the upper layer L-shaped overlaps embedded bar on platform, and lower layer's L-shaped overlaps pre-embedded bolt, embedded bar or bolt on platform
Position and stringer type stairway body end reserve the position of mounting hole and correspond, and stretch in mounting hole, stringer type stairway sheet
Body upper end is supported on the upper layer L-shaped overlap joint platform of upper layer stair stringer, and lower end is supported in lower layer's L-shaped overlap joint platform of lower layer's stair stringer
On, and the stringer type stairway body top surface of connection should be concordant with upper layer stair top surface of the beam and lower layer's stair top surface of the beam, beam type building
It is laid with cement mortar screeding layer, stringer type stairway sheet respectively between terraced body lower part and upper layer L-shaped overlap joint platform, lower layer's L-shaped overlap joint platform
There are certain gap between body both ends of the surface and upper layer stair stringer and lower layer's stair stringer, polyphenyl filled layer is filled in gap, and adopt
It is sealed with injecting glue layer, is provided in the mounting hole of reinforcing bar and is perfused with cement grout material, top is blocked by mortar, is arranged
Have in the mounting hole of bolt and fixed using nut, nut lower part is provided with elastomeric pad, and nut top is blocked by mortar.
The side of the stringer type stairway ontology is provided with railing mounting hole.
The making construction method of precast prestressed concrete beam formula stair, includes the following steps：
(1) mold is made according to the dimensions of stringer type stairway ontology, both mold ends reserve stomidium for interting prestressing force
Reinforcing bar；
(2) it will be put into mold by top regular reinforcement, stirrup, suspension centre reinforcing rib, hole reinforcing rib and distribution steel of marking time
Muscle binds the steel reinforcement cage to be formed, and then reserves stomidium by both mold ends and interts in mold and deformed bar and is opened successively
It draws；
(3) in-site installation lifting part and demoulding overturning lifting part are placed as needed, and control cover to reinforcement
Thickness；
(4) casting concrete and maintenance of vibrating in mold；When compressive strength of concrete reaches design pressure resistance
When spending the 75% of standard value, tension prestress reinforcing bar is put；After concrete crushing strength reaches the 100% of design value, demoulding lifting；
(5) stringer type stairway ontology is hoisted to construction site；
(6) check upper layer stair stringer and the position of lower layer's stair stringer embedded bar and bolt whether with stringer type stairway body end
The position that portion reserves mounting hole corresponds, and the upper layer L-shaped overlap joint platform in upper layer stair stringer, lower layer's stair stringer and lower layer L
Shape, which overlaps, is laid with cement mortar screeding layer on platform；
(7) stringer type stairway ontology is lifted in place, upper end is supported on the upper layer L-shaped overlap joint platform of upper layer stair stringer, lower end
It is supported on lower layer's L-shaped overlap joint platform of lower layer's stair stringer, and reinforcing bar and bolt pre-buried in upper layer stair stringer and lower layer's stair stringer
It should be inserted into the reserved mounting hole in stringer type stairway ontology both ends；
(8) Seal treatment is carried out to mounting hole and tip-clearance.
Compared to the prior art a kind of precast prestressed concrete beam formula stair of the utility model, have following prominent
Advantageous effect：
Stringer type stairway body lower part goes up arrangement prestress reinforcing bar along its length, by being answered in advance stringer type stairway body lower part
Power reinforcing bar applies prestressing force, can effectively improve its out of plane stiffness, and cracking resistance reduces plate thickness, mitigates dead weight, reduces prefabricated
The difficulty of stair transport, lifting and installation；
Stringer type stairway ontology both ends are supported on stair stringer L-shaped overlap joint platform, are connected using incomplete consolidation mode with stair stringer
It connecing, stringer type stairway ontology end face and stair stringer retain certain gap, filling elastic material in gap, when earthquake occurs, the two
Between can occur it is opposite slide, effectively reduce the geological process suffered by stringer type stairway ontology, be conducive to personnel escape, can eliminate
Influence of the stair to agent structure stress and rigidity mitigates damage of the earthquake to stair, it is ensured that building safety；
Using industrialization prefabrication and assembly construction technology, stringer type stairway ontology is in factory for prefabrication using unified Mold Making, molding
Quality is easy to get to being effectively ensured；After the completion of stringer type stairway ontology prefabrication, stair can be completed by lifting in transport to scene
Construction, speed is fast, efficient, and construction site construction waste is few, execution conditions and environment be improved significantly.
Description of the drawings
Attached drawing 1 is a kind of side structure schematic view of precast prestressed concrete beam formula stair；
Attached drawing 2 is the vertical view of stringer type stairway ontology；
Attached drawing 3 is the side view of stringer type stairway ontology；
Attached drawing 4 is stringer type stairway ontology arrangement of reinforcement schematic diagram；
Attached drawing 5 is stringer type stairway ontology arrangement of reinforcement sectional schematic diagram；
Attached drawing 6 is stringer type stairway ontology and upper layer stair stringer scheme of installation；
Attached drawing 7 is stringer type stairway ontology and lower layer's stair stringer scheme of installation；
Reference sign：1, stringer type stairway ontology；101, bench cant beam；102, ladder-like to mark time；2, layer stair stringer；3、
Lower layer's stair stringer；4, lower layer's L-shaped overlaps platform；5, deformed bar；6, top regular reinforcement；7, stirrup；8, it marks time distribution bar；
9, tread plate mounting groove；10, in-site installation lifting part；11, overturning lifting part is demoulded；12, suspension centre reinforcing rib；13, it installs
Hole；14, hole reinforcing rib；15, railing mounting hole；16, upper layer L-shaped overlaps platform；17, reinforcing bar；18, cement mortar screeding layer；19、
Cement grout material；20, nut；21, mortar；22, elastomeric pad；23, polyphenyl filled layer；24, injecting glue layer；25, bolt.
Specific implementation mode
With reference to Figure of description 1 to attached drawing 7 to a kind of precast prestressed concrete beam formula stair of the utility model make with
Under explain in detail.
A kind of precast prestressed concrete beam formula stair of the utility model, including stringer type stairway ontology 1 and support beam type
Upper layer stair stringer 2, the lower layer's stair stringer 3 of stair ontology 1, the stringer type stairway ontology 1 include bench cant beam 101 and ladder-like
Mark time 102, bench cant beam 101 is arranged along 1 length direction of stringer type stairway ontology, and 12 both ends of marking time are supported in bench cant beam 101
On, 12 upper surface of marking time is horizontally disposed step surface, is provided with tread plate mounting groove 9 on step surface, 12 height of marking time and
Width should meet national construction standards requirement, and 12 quantity of marking time should be determined according to staircase depth and structure floor height, the beam
The both ends of formula stair ontology 1 are connected with upper layer stair stringer 2, lower layer's stair stringer 3 respectively, and 101 lower part of bench cant beam is along length
Direction arrangement prestress reinforcing bar 5 is spent, top regular reinforcement 6, deformed bar 5 are arranged in 101 top of bench cant beam along its length
It is equally spaced stirrup 7 along its length with the outside of top regular reinforcement 6, deformed bar 5 and top regular reinforcement 6 are located at
In stirrup 7, described mark time is provided with distribution bar 8 of marking time in 12.
The stirrup 7 with mutually fixed by way of binding between deformed bar 5 and top regular reinforcement 6.
The deformed bar 5 uses 1570 grades of ΦH4.8 eliminate stress helix rib steel wire.The tensioning of deformed bar 5
Stress, quantity and spacing should be determined according to design requirement and execution conditions.By to 101 lower part deformed bar 5 of bench cant beam
Apply prestressing force, stair out of plane stiffness can be effectively improved, reduce precast stair thickness and reduces member dead weight.
The front and rear sides of the stringer type stairway ontology 1 are embedded with in-site installation lifting part 10, quantity 4 by close end
It is a；Each in-site installation is respectively arranged with suspension centre reinforcing rib 12 with the both ends of lifting part 10.
The side of the bench cant beam 101 is embedded with demoulding overturning lifting part 11, and quantity is 2.
Mounting hole is reserved respectively with upper layer stair stringer 2 and 3 lap-joint of lower layer's stair stringer in 1 both ends of stringer type stairway ontology
13。
In the mounting hole 13 at 1 both ends of stringer type stairway ontology, inner cavity one end is stepped hole, and one end is through-hole, through-hole it is straight
The diameter macropores of diameter and stepped hole are respectively 50mm, and the hole edge of the mounting hole 13 at both ends is far from 1 end face of stringer type stairway ontology
Distance is more than 100mm, and the periphery at each mounting hole 13 is respectively arranged with hole reinforcing rib 14, and hole at each mounting hole 13
Reinforcing rib 14 is respectively two, up and down distribution setting, a diameter of 10mm of each hole reinforcing rib 14.
The end set of the upper layer stair stringer 2 has upper layer L-shaped to overlap platform 16, and the end set of lower layer's stair stringer 3 has
Lower layer's L-shaped overlaps platform 4, and the upper layer L-shaped overlaps embedded bar 17 on platform 16, and lower layer's L-shaped overlaps pre-embedded bolt 25 on platform 4,
The position that the position of embedded bar 17 or bolt 25 reserves mounting hole 13 with 1 end of stringer type stairway ontology corresponds, beam type building
1 upper end of terraced ontology is supported on the upper layer L-shaped overlap joint platform 16 of upper layer stair stringer 2, and lower end is supported in the lower layer L of lower layer's stair stringer 3
Shape overlaps on platform 4, and 1 top surface of stringer type stairway ontology of connection should be with 3 top surface of 2 top surface of upper layer stair stringer and lower layer's stair stringer
Concordantly, cement mortar is laid with respectively between 1 lower part of stringer type stairway ontology and upper layer L-shaped overlap joint platform 16, lower layer's L-shaped overlap joint platform 4 to look for
Flat bed 18, when in-site installation, pre-buried reinforcing bar 17 and bolt 25 should be inserted into the mounting hole 13 at 1 both ends of stringer type stairway ontology, peace
It after the completion of dress, is provided in the mounting hole 13 of reinforcing bar and is perfused with cement grout material 19, top is blocked by mortar 21, is provided with
It is fixed using nut 20 in the mounting hole 13 of bolt, 20 lower part of nut is provided with elastomeric pad 22, and 20 top of nut passes through mortar
21 block, there are certain gap between 1 both ends of the surface of stringer type stairway ontology and upper layer stair stringer 2 and lower layer's stair stringer 3, in gap
Polyphenyl filled layer 23 is filled, and is sealed using injecting glue layer 24.
The side of the stringer type stairway ontology 1 is provided with railing mounting hole 15.
The making construction method of precast prestressed concrete beam formula stair, includes the following steps：
(1) mold is made according to the dimensions of stringer type stairway ontology 1, both mold ends reserve stomidium for interting prestressing force
Reinforcing bar 5；
(2) it will be put by top regular reinforcement 6, stirrup 7, suspension centre reinforcing rib 12, hole reinforcing rib 14 and mark time in mold
Distribution bar 8 binding formed steel reinforcement cage, then by both mold ends reserve stomidium in mold intert deformed bar 5 and according to
Secondary carry out tensioning；
(3) in-site installation lifting part 10 and demoulding overturning lifting part 11 are placed as needed, and control reinforcing bar guarantor
Covering thickness；
(4) casting concrete and maintenance of vibrating in mold；When compressive strength of concrete reaches design pressure resistance
When spending the 75% of standard value, tension prestress reinforcing bar 5 is put；After concrete crushing strength reaches the 100% of design value, demould
It hangs；
(5) stringer type stairway ontology 1 is hoisted to construction site；
(6) check upper layer stair stringer 2 and the position of 3 embedded bar 17 of lower layer's stair stringer and bolt 25 whether with stringer type stairway
The position that mounting hole 13 is reserved in 1 end of ontology corresponds, and the upper layer L-shaped in upper layer stair stringer 2, lower layer's stair stringer 3 is taken
It connects and is laid with cement mortar screeding layer 18 on platform 16 and lower layer's L-shaped overlap joint platform 4；
(7) stringer type stairway ontology 1 being lifted in place, upper end is supported on the upper layer L-shaped overlap joint platform 16 of upper layer stair stringer 2,
Lower end is supported on lower layer's L-shaped overlap joint platform 4 of lower layer's stair stringer 3, and steel pre-buried in upper layer stair stringer 2 and lower layer's stair stringer 3
Muscle 17 and bolt 25 should be inserted into the reserved mounting hole 13 in 1 both ends of stringer type stairway ontology；
(8) Seal treatment is carried out to mounting hole 13 and tip-clearance.
1 lower part of the utility model stringer type stairway ontology arrangement prestress reinforcing bar 5 along its length, by stringer type stairway sheet
1 lower part deformed bar 5 of body applies prestressing force, can effectively improve its out of plane stiffness and cracking resistance, reduces plate thickness, mitigates
Dead weight reduces by 1 transport of stringer type stairway ontology, lifting and installation difficulty.1 both ends of stringer type stairway ontology are supported in stair stringer L-shaped and take
It connects on platform, 1 end face of stringer type stairway ontology and stair stringer retain certain gap, filling elastic material in gap, under geological process
Influence of the stair to agent structure stress and rigidity can be eliminated, mitigates damage of the earthquake to stair, it is ensured that building safety.
Illustrative embodiments listed above are not to described in the utility model only for understanding that the utility model is used
The restriction of technical solution, the those of ordinary skill in relation to field described in claim on the basis of technical solution, can also make
Go out a variety of variations or deformation, all equivalent variations or deformation should all cover the utility model claims it
It is interior.Place is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (9)
1. a kind of precast prestressed concrete beam formula stair, it is characterized in that：Including stringer type stairway ontology and support stringer type stairway sheet
Upper layer stair stringer, the lower layer's stair stringer of body, the stringer type stairway ontology include bench cant beam and it is ladder-like mark time, bench cant beam
It is arranged along stringer type stairway body length direction, the both ends marked time are supported on bench cant beam, and the upper surface marked time is horizontally disposed
Step surface, be provided with tread plate mounting groove on step surface, the both ends of the stringer type stairway ontology respectively with upper layer stair stringer,
Lower layer's stair stringer is connected, and bench cant beam lower part arrangement prestress reinforcing bar along its length, bench cant beam top is along length
The outside of direction arrangement top regular reinforcement, deformed bar and top regular reinforcement is equally spaced stirrup along its length,
Deformed bar and top regular reinforcement are located in stirrup, it is described mark time in be provided with distribution bar of marking time.
2. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The stirrup with it is pre-
It is mutually fixed by way of binding between stress reinforcing bar and top regular reinforcement.
3. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The prestress steel
Muscle uses 1570 grades of ΦH4.8 eliminate stress helix rib steel wire.
4. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The stringer type stairway
The front and rear sides of ontology are embedded with in-site installation lifting part by close end, and quantity is 4；Each in-site installation lifting part
Both ends are respectively arranged with suspension centre reinforcing rib.
5. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The bench cant beam
Side be embedded with demoulding overturning lifting part, quantity be 2.
6. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The stringer type stairway
Mounting hole is reserved respectively with upper layer stair stringer and stair stringer lap-joint of lower layer in ontology both ends.
7. a kind of precast prestressed concrete beam formula stair according to claim 6, it is characterized in that：Stringer type stairway ontology two
In the mounting hole at end, inner cavity one end is stepped hole, and one end is through-hole, and the diameter of through-hole and the diameter macropores of stepped hole are respectively
50mm, and the hole edge of the mounting hole at both ends far from stringer type stairway body end identity distance from more than 100mm, it is outer at each mounting hole
It encloses and is respectively arranged with hole reinforcing rib, and hole reinforcing rib is respectively two at each mounting hole, distribution setting up and down, each hole
A diameter of 10mm of mouth reinforcing rib.
8. a kind of precast prestressed concrete beam formula stair according to claim 7, it is characterized in that：The upper layer stair
The end set of beam has upper layer L-shaped to overlap platform, and the end set of lower layer's stair stringer has lower layer's L-shaped to overlap platform, the upper layer L-shaped
Embedded bar on platform is overlapped, lower layer's L-shaped overlaps pre-embedded bolt on platform, the position and stringer type stairway body end of embedded bar or bolt
The position that portion reserves mounting hole corresponds, and stretches in mounting hole, and stringer type stairway ontology upper end is supported in upper layer stair stringer
Upper layer L-shaped overlap joint platform on, lower end is supported on lower layer's L-shaped overlap joint platform of lower layer's stair stringer, and the stringer type stairway of connection
Body top surface should be concordant with upper layer stair top surface of the beam and lower layer's stair top surface of the beam, and stringer type stairway body lower part is overlapped with upper layer L-shaped
Be laid with cement mortar screeding layer between platform, lower layer L-shaped overlap joint platform respectively, stringer type stairway ontology both ends of the surface and upper layer stair stringer and under
There are certain gap between layer stair stringer, polyphenyl filled layer is filled in gap, and use injecting glue layer is sealed, and is provided with steel
Cement grout material is perfused in the mounting hole of muscle, top is blocked by mortar, is provided in the mounting hole of bolt and is used nut
Fixed, nut lower part is provided with elastomeric pad, and nut top is blocked by mortar.
9. a kind of precast prestressed concrete beam formula stair according to claim 1, it is characterized in that：The stringer type stairway
The side of ontology is provided with railing mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250922.1U CN207959751U (en) | 2018-02-11 | 2018-02-11 | A kind of precast prestressed concrete beam formula stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250922.1U CN207959751U (en) | 2018-02-11 | 2018-02-11 | A kind of precast prestressed concrete beam formula stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207959751U true CN207959751U (en) | 2018-10-12 |
Family
ID=63739341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820250922.1U Expired - Fee Related CN207959751U (en) | 2018-02-11 | 2018-02-11 | A kind of precast prestressed concrete beam formula stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207959751U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166691A (en) * | 2018-02-11 | 2018-06-15 | 山东省建筑科学研究院 | A kind of precast prestressed concrete beam formula stair and making construction method |
| CN110644698A (en) * | 2019-09-16 | 2020-01-03 | 佛山建装建筑科技有限公司 | Precast concrete beam type stair |
| CN112900764A (en) * | 2021-03-15 | 2021-06-04 | 重庆大学 | Light assembled stair with steel bar truss |
-
2018
- 2018-02-11 CN CN201820250922.1U patent/CN207959751U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166691A (en) * | 2018-02-11 | 2018-06-15 | 山东省建筑科学研究院 | A kind of precast prestressed concrete beam formula stair and making construction method |
| CN110644698A (en) * | 2019-09-16 | 2020-01-03 | 佛山建装建筑科技有限公司 | Precast concrete beam type stair |
| CN112900764A (en) * | 2021-03-15 | 2021-06-04 | 重庆大学 | Light assembled stair with steel bar truss |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108166691A (en) | A kind of precast prestressed concrete beam formula stair and making construction method | |
| CN108166690A (en) | A kind of precast prestressed concrete cranked slab stairs and making construction method | |
| CN110439137B (en) | Prefabricated wall board, wall body, prefabricated wall board production method and prefabricated wall body construction method | |
| CN107542196A (en) | Prestressed concrete bidirectional laminated slab and preparation method | |
| CN207959751U (en) | A kind of precast prestressed concrete beam formula stair | |
| CN108661225B (en) | But height-adjusting's precast concrete coincide floor | |
| CN206352357U (en) | A kind of prestressed concrete overlapped slab with steel truss | |
| CN105507470A (en) | Periphery-overlapped integral fabricated floor and construction method thereof | |
| CN111958815A (en) | Separated prefabricated prestressed concrete slab stair and production process thereof | |
| CN207959747U (en) | A kind of precast prestressed concrete cranked slab stairs | |
| CN206329145U (en) | A kind of quick assembled type enclosure wall | |
| CN210263131U (en) | Assembled is from stagnant water underground pipe gallery structure | |
| CN210369292U (en) | Cast-in-place coincide mould shell integral structure of assembled building | |
| CN202064636U (en) | Closed stair formwork erecting device | |
| CN204435616U (en) | Truss bars double layer fibre gypsum plank, non-dismantling formwork wall body structure | |
| CN206016099U (en) | A kind of light prefabricated shears ladder of configuration butterfly beam | |
| CN208502068U (en) | A kind of partial precast assembly prestress girder with rolled steel section en cased in concrete | |
| CN208668274U (en) | A kind of steel reinforced concrete composite beam bridge | |
| CN216920894U (en) | Prefabricated floor panel with removable stiffening member | |
| CN105952044B (en) | A kind of full precast prestressed concrete floor construction and prestressing force assembly method | |
| CN212498282U (en) | Separated prefabricated prestressed concrete slab type stair | |
| CN212983915U (en) | Waterproof wall of leading of assembled soleplate | |
| CN211769949U (en) | Movable arm type tower crane underframe ballast type foundation | |
| CN212271447U (en) | Light-duty prefabricated stair of marking time and boundary beam common atress | |
| CN207160359U (en) | Prestressed concrete bidirectional laminated slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200824 Address after: 250031 Shandong Province Flyover District of Ji'nan City Road 29. Co-patentee after: SHANDONG JIANKE ARCHITECTURAL DESIGN Co.,Ltd. Patentee after: Shandong Academy of Building Science Co.,Ltd. Address before: 250031 Shandong Province Flyover District of Ji'nan City Road 29. Patentee before: SHANDONG PROVINCIAL ACADEMY OF BUILDING RESEARCH |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20220211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |