CN206091004U - Hollow combination room of unilateral steel plate concrete lid - Google Patents
Hollow combination room of unilateral steel plate concrete lid Download PDFInfo
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- CN206091004U CN206091004U CN201621060996.6U CN201621060996U CN206091004U CN 206091004 U CN206091004 U CN 206091004U CN 201621060996 U CN201621060996 U CN 201621060996U CN 206091004 U CN206091004 U CN 206091004U
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Abstract
The utility model provides a hollow combination room of unilateral steel plate concrete lid belongs to nuclear power plant's large -span, big space room lid and superstructure system field, and the outward flange and the building side wall that supports this room lid of this room lid are connected, for by a plurality of pin mutually parallel I shaped steel bone concrete combination beam splice in proper order and have the flat cuboid box structure of a plurality of hollows in the middle part of the formation, I shaped steel bone concrete combination beam all satisfies one -way independent atress requirement, partly wraps up the integrated configuration of asymmetric I shaped steel skeleton by I shaped steel muscle concrete for one, the utility model discloses an exempt from the template design, both solved the problem of civil engineering with installation overlapping jobs, also accelerated the construction progress simultaneously, satisfied the time limit for a project requirement of project, still have the entrance to a cave of temporarily seting up the hoist and mount of confession main equipment and do not influence room lid the stress's characteristics to satisfy the required functional requirement of nuclear power station factory building room lid.
Description
Technical field
This utility model belongs to nuclear power plant's large span, large space roof system and floor system field, more particularly to a kind of unilateral
The structure design of steel plate concrete hollow combination roof system.
Background technology
HTGR (abbreviation HTR-PM) is to possess independent intellectual property right with China, pacify with the 4th generation of technology such as nuclear energy system
The advanced nuclear power heap-type of full feature, with inherent safety features, extensively, Commercial Prospect is wide for application.HTGR
Nuclear power station demonstration project is one of national key special subjects, to promoting China to enter Generation Ⅳ forward position, promote nuclear power system
Make enterprise to increase scientific research dynamics, attract the cohesion nuclear power talent significant.
HTGR Nuclear Power Plant demonstration project is made up of two block response heaps and corresponding two vaporizers, the reactor
It is individually positioned in reactor cabin and vaporizer cabin with vaporizer.Reactor cabin and vaporizer ship cabin arrangement are same
In reactor building.Reactor building version is generally reinforced concrete shear wall structure, in reactor building top layer, leads to
The standing maintenance hall for putting large span, large space, while interior set overhead crane, after convenience is to the lifting and use of main equipment
Service work.
During Nuclear Power Station, main equipment (such as reactor pressure vessel, steam generator) is installed generally to be present
Two big class problems：One is that the time of delivery is later；After the completion of two are equipment hoisting, when main equipment internals are installed, need
The clear area for meeting the requirement of core level is set up in maintenance hall.The roof system of reactor building is according to traditional roof system form, such as general
Logical reinforced concrete roof, is primarily present following several respects problem：
1st, build when roof system when must maintenance hall in full hall scaffold is set, then through formwork, assembling reinforcement, pour
Build form removal after concrete, curing concrete, concrete reach intensity and tear scaffold open, could be that maintenance hall vacating space sets up clear
Clean area.Job site workload is big, and civil engineering installs cross-operation complexity with equipment, and scene mostly is work high above the ground, construction period
It is long；
2. the roof system of traditional form construction is pressed in the critical path of whole project duration, be that restriction civil engineering is always constructed week
The bottleneck of phase；
3. consider in the main equipment in-service phase, there is the possibility of replacing, need to consider that roof system is punched problem temporarily, ordinary steel
The usual force design by their entirety of reinforced concrete roof system, can affect the stress and safety of whole roof system, if punching temporarily to hole
The consolidation process difficulty of surrounding roof structure is big and costly.
In addition to modal reinforced concrete roof form, existing common steel reinforced concrete roof system equally exist formwork,
Form removal etc. causes civil engineering to install the problem of cross-operation with equipment；Existing double steel plate Combined concrete roof system, its outside plate
It is chronically exposed in the such as outdoor environment of the perishable steel plate such as strand, durability is difficult to ensure that；Existing steel structural roof then cannot
Meet the deformation requirements under severe earthquake action and nuclear radiation shield requirement, and the ability of opposing missile load is poor, durability is same
Sample is difficult to ensure that.
Utility model content
This utility model is the weak point for overcoming prior art, it is proposed that a kind of unilateral steel plate concrete hollow combination room
Lid, the roof system can meet HTR-PM reactor buildings project progress and functional requirement, hang for main equipment with can open up temporarily
The hole of dress and the characteristics of do not affect roof system entirety stress, while solving civil engineering and main equipment, to install cross-operation complicated
Problem.
The utility model proposes a kind of unilateral steel plate concrete hollow combination roof system, it is characterised in that the roof system it is outer
Edge is connected with the building side wall for supporting the roof system, and the roof system is by I shape reinforcing bar coagulation local soil type some Pin parallel to each other
Close beam middle part is spliced to form successively with multiple hollow prolate cube box-structures, the I shape reinforcing bar concrete combination beam
It is the combination beam that can meet that unidirectional independent stressed is required.
The structure of each Pin I shapes reinforcing bar concrete combination beam is identical, including upper and lower asymmetrical I shape reinforcing bar
Frame, reinforcing bar and I-shaped concrete, the i shaped steel skeleton is by the connection of reinforcing bar top flange, reinforcing bar web and reinforcing bar lower flange
Into reinforcing bar is uniformly provided with peg on lower flange；Wherein, the reinforcing bar be evenly arranged in the upper and lower both sides in reinforcing bar top flange, under reinforcing bar
On the upside of the edge of a wing and reinforcing bar web both sides；Box is additionally provided between the intraskeletal reinforcing bar web of two adjacent i shaped steels permanent
Template, I-shaped concrete are poured in the space enclosed by box permanent template and reinforcing bar lower flange, ultimately form work
Font armored concrete half wraps up the combined beam structure of i shaped steel skeleton.
The characteristics of this utility model and beneficial effect：
1st, the I shape reinforcing bar concrete combination beam in unilateral steel plate concrete hollow combination roof system is independent stressed list
Unit, and using stencil design is exempted from, reinforcing bar lower flange also serves as the template during casting concrete while undertaking tension, it is not necessary to press
Required formwork, form removal and the operations such as full hall scaffold are set up when building according to traditional roof system form, it is only necessary in each module when building
Inside box permanent template is set, can complete unilateral steel plate concrete hollow combination room after assembling reinforcement and casting concrete
Lid；This had both solved the problems, such as civil engineering and had installed cross-operation, while also accelerating construction speed, the duration for meeting project will
Ask.
2nd, as every Pin I shapes reinforcing bar concrete combination beam of unilateral steel plate concrete hollow combination roof system is all adopted respectively
From independent single load bearing pattern, therefore punched when can meet construction temporarily and the later stage punches the demands such as reinforcing, this reality in addition
Modular construction method can be realized with new, accelerating construction progress improves construction quality, reduces operating expenses.
3rd, traditional Rectangular Concrete beam design, the design stress more science of I shape reinforcing bar concrete combination beam are compared
Rationally, reliability is high, and material usage rationality is high and can mitigate dead load.Unilateral steel plate concrete hollow combination design simultaneously
Roof stiffness can be increased, be conducive to resisting missile load；I shaped steel reinforced concrete half wraps up the design of i shaped steel skeleton
The durability of structure can also preferably be ensured.
4th, I shape reinforcing bar concrete combination beam two ends are connected by steel corbel and steel embedded part to side wall with Factory Building length.Full
In the work progress that sufficient the design assumes, I shape reinforcing bar concrete combination beam two ends freely-supported first on the steel corbel of bottom, its
Deadweight is undertaken by steel corbel, and internal force passes to Factory Building length to side wall from steel corbel；Brick wall concrete in beam elevation range
After condensing hardening, I shape reinforcing bar concrete combination beam is linked to be an entirety by steel embedded part with Brick wall, realizes I-shaped
Being rigidly connected between shaped steel bone concrete combination beam two ends and body of wall, therefore steel reinforced concrete combination beam under normal operating condition
Deadweight and the internal force that produces of the internal force that produces of its upper load and deformation, geological process Factory Building wall is passed to by steel embedded part
Body.It is this rigidly connected node connected mode (referred to as varied rigid link) is changed into by freely-supported to significantly reduce i shaped steel
The node connection request of bone concrete combination beam and Factory Building length to side wall, so as to significantly reduce difficulty of construction.
Description of the drawings
Fig. 1 is this utility model integral planar layout drawing.
Fig. 2 is this utility model principal section (A-A) figure.
Fig. 3 is this utility model i shaped steel skeleton schematic cross-section.
Fig. 4 is the connection diagram between the two neighboring i shaped steel skeleton of this utility model.
Schematic cross-sections of the Fig. 5 for this utility model embodiment horizontal support.
Fig. 6 is the connection diagram of this utility model embodiment interlude horizontal support and i shaped steel skeleton.
Fig. 7 is the connection diagram of this utility model horizontal support and Factory Building short side wall.
Fig. 8 (a) shows to the connection of side wall for this utility model embodiment I shape reinforcing bar concrete combination beam and Factory Building length
It is intended to；Fig. 8 (b) is this utility model embodiment I shape reinforcing bar concrete combination beam and the connection signal of Factory Building short side wall
Figure.
Specific embodiment
The utility model proposes a kind of unilateral steel plate concrete hollow combination roof system combine drawings and Examples specifically
It is bright as follows：
The utility model proposes a kind of unilateral steel plate concrete hollow combination roof system be supported at the top of factory building side wall, which is whole
Body horizontal layout is as shown in figure 1, unilateral steel plate concrete hollow combination roof system is identical by some Pin structures and be arranged in parallel
I shape reinforcing bar concrete combination beam 1 is spliced to form middle part successively with multiple hollow prolate cube box-structures, the work
The axial direction of font reinforcing bar concrete combination beam 1 is each perpendicular to Factory Building length to side wall 0-1, and I shape reinforcing bar concrete combination beam 1 is pressed
Unidirectional independent stressed requires design, is that the interim opening holes of roof system provide safeguard.
The cross section of the I shape reinforcing bar concrete combination beam 1 is as shown in Fig. 2 include upper and lower asymmetrical I shape
Steel skeleton 11, reinforcing bar 12 and I-shaped concrete 13, i shaped steel skeleton 11 (as shown in Figure 3) is by reinforcing bar top flange 11-1, steel
Bone web 11-2 and reinforcing bar lower flange 11-3 are welded, and are uniformly provided with peg 11-4 on the 11-3 of reinforcing bar lower flange；Wherein, reinforcing bar
12 are evenly arranged in the upper and lower both sides of reinforcing bar top flange 11-1, on the upside of the 11-3 of reinforcing bar lower flange and reinforcing bar web 11-2 both sides；
The box isometric with i shaped steel skeleton 11 is additionally provided with forever between reinforcing bar web 11-2 in two adjacent i shaped steel skeletons 11
Long template 14, I-shaped concrete 13 are poured in the space enclosed by box permanent template 14 and reinforcing bar lower flange 11-3
It is interior, ultimately form the combined beam structure that i shaped steel reinforced concrete half wraps up i shaped steel skeleton 11.On the reinforcing bar of the present embodiment
Edge of a wing 11-1, reinforcing bar web 11-2, reinforcing bar lower flange 11-3 adopt the width of hot rolled steel plate, reinforcing bar top flange 11-1 to be less than steel
Bone lower flange 11-3, due to reinforcing bar top flange 11-1 resistance to tensions it is relatively low, the hogging moment in I shape reinforcing bar concrete combination beam 1
Mainly undertaken by the reinforcing bar 12 of reinforcing bar top flange 11-1 upper and lower sides, therefore row's steel is respectively configured in reinforcing bar top flange 11-1 upper and lower sides
Muscle 12；Using being welded to connect, peg 11-4 causes i shaped steel skeleton 11 and I shape to peg 11-4 and reinforcing bar lower flange 11-3
Armored concrete is combined closely, resists jointly load action；Reinforcing bar lower flange 11-3 is in I shape reinforcing bar concrete combination beam 1
Lower side, as its own rigidity is big, high capacity characteristic, can pour as I-shaped concrete 13 while undertaking pulling force
When bottom template, as box permanent template 14 is the non-dismantling formwork using conventional mould material, therefore each Pin i shaped steels
1 bottom of bone concrete combination beam intersects work so as to solving civil engineering and installing with main equipment without the need for supporting module and scaffold again
The complicated problem of industry.
Pass through to be welded to connect between i shaped steel skeleton 11 in adjacent two Pin I shape reinforcing bars concrete combination beam 1, or
Person passes through gusset plate 2 and high-strength bolt 3 is attached, as shown in figure 4, wherein gusset plate 2 is located at adjacent two Pin I shapes respectively
The both sides up and down of reinforcing bar lower flange 11-3 in steel skeleton 11, high-strength bolt 3 sequentially pass through gusset plate 2 and reinforcing bar lower flange 11-3.
Additionally, specifically being punched the differences such as situation, steel construction factory process transport capacity and job site Lifting Capacity according to roof system
The reinforcing bar lower flange of some Pin i shaped steels skeletons 11 is made by demand using a monoblock steel plate.
To ensure the Outside-plate stabilizing of 11 construction stage of i shaped steel skeleton, axially equal perpendicular to i shaped steel skeleton 11
Even setting multiple tracks horizontal support 7, the horizontal support 7 is connected with steel skeleton top flange steel plate by otic placode, the end of horizontal support 7
It is connected with Factory Building short side wall 0, the interlude of horizontal support 7 is connected with adjacent i shaped steel skeleton 11 respectively.The present embodiment
The structure of each road horizontal support 7 is identical, its cross section as shown in figure 5, by two equal leg angle 14-1 and fill plate 14-2 composition,
Two equal leg angle 14-1 are respectively welded at the both sides of fill plate 14-2 with back-to-back form；Positioned at the horizontal support 7 of interlude
It is attached with i shaped steel skeleton 11 by otic placode 8 and high-strength bolt 3, as shown in fig. 6, wherein otic placode 8 is vertically welded in steel
On bone top flange 11-1 and reinforcing bar web 11-2, horizontal support 7 is connected with otic placode 8 by high-strength bolt 3；Positioned at the level of end
7 are supported to be fixedly connected with hall short side wall 0 is overhauled by gusset plate 2, high-strength bolt 3 and steel embedded part 5, as shown in fig. 7, its
In, gusset plate 2 is welded to connect with the steel embedded part 5 for being embedded in Factory Building short side wall 0, and horizontal support 7 passes through high-strength bolt 3 and otic placode
8 connections.
The vertical supporting of the unilateral steel plate concrete hollow combination roof system is Factory Building length to side wall 0-1, and which is long with Factory Building
Specific implementation to side wall 0-1 connections is described as follows：
Each 1 two ends of Pin I shapes reinforcing bar concrete combination beam of the present embodiment and Factory Building length to side wall 0-1 pass through steel corbel 4 and
Steel embedded part 6 connects, and shown in such as Fig. 8 (a), steel corbel 4 is welded on steel embedded part 5, is uniformly arranged to side wall 0-1 along Factory Building length, is applied
The deadweight of work stage I shape reinforcing bar concrete combination beam 1 is undertaken by steel corbel.The steel corbel 4 includes horizontally disposed steel cattle
Lower limb top flange 41, the steel corbel web 42 of and spaced set vertical with the top flange；The steel embedded part 5 is by anchor slab 51 and dowel
52 compositions, anchor slab 51 are flushed to side wall 0-1 surfaces with Factory Building length, and dowel 52 horizontally extends into Factory Building length to the inside of side wall 0-1, anchor slab
51 are welded with dowel 52；Steel embedded part 6 is made up of anchor slab 61 and dowel 62, and anchor slab 61 is flushed to side wall 0-1 surfaces with Factory Building length, anchor
Muscle 62 horizontally extends into Factory Building length to the inside of side wall 0-1, and anchor slab 61 is welded with dowel 62.In 11 bottom of i shaped steel skeleton, reinforcing bar
Lower flange 11-3 is connected with steel corbel top flange 41 by high-strength bolt 3；Position of the steel corbel web 42 according to reinforcing bar web 11-2
Put to position, make i shaped steel skeleton 11 and Factory Building length more clearly direct to the transmission of power between side wall 0-1.I shaped steel skeleton
11 two ends are welded with steel embedded part 6, and under normal operating condition, the deadweight of steel reinforced concrete combination beam and its upper load are produced
The internal force that internal force and deformation, geological process are produced mainly is undertaken by steel embedded part 6；Steel embedded part 6 is to I shape steel reinforced concrete simultaneously
The end-plate effect that combination beam 1 is provided can increase the integral rigidity of I shape reinforcing bar concrete combination beam 1, so as to effective control work
The deformation of font reinforcing bar concrete combination beam 1.
I shape reinforcing bar concrete combination beam 1 is connected (as shown in Fig. 8 (b)) by steel corbel 4 with Factory Building short side wall 0,
Wherein, adopt between steel corbel top flange 41 and steel corbel web 42 and be welded to connect；Steel corbel 4 is welded on steel embedded part 5, along factory
Room short side wall 0 is uniformly arranged；Steel corbel top flange 41 is connected with reinforcing bar lower flange 11-3 high-strength bolt 3.
The size of the I shape reinforcing bar concrete combination beam 1 and Pin numbers, gusset plate 2, high-strength bolt 3, steel corbel 4 and steel
The specification of embedded part 5 is designed determination according to the actual stressing conditions of roof system：In general, I shape reinforcing bar concrete combination beam
1 beam height value be the 1/12～1/16 of unilateral steel plate concrete hollow combination roof system span, deck-siding value be deck-molding 1/1.5～
1/2.5th, the span of beam determines (being usually no more than 50m) according to roof system span, reinforcing bar lower flange 11-3 in i shaped steel skeleton 11
Steel plate thickness is not preferably less than 20mm, to meet the intensity requirement for also serving as template；In nuclear engineering, the top of I-shaped concrete, bottom
Plate gross thickness is no less than 600mm, to meet the requirement of radiation shield and opposing tornado missile.
Method for designing of the unilateral steel plate concrete hollow combination roof system of the present utility model using one direction stress, unilateral steel
Board concrete hollow combination roof system short is main Impact direction；Analysis of construction phase model adopts single span freely-supported beam model, only
Consider one direction stress, overall calculation considers pass force crossly；Operational phase analysis model consider respectively single span freely-supported beam model and
Space block mold, and two kinds of analysis models are taken into envelope design, single span freely-supported beam model is very long due to length, short side wall phase
It is weaker to the bulk deformation coordination ability of middle Pin simply supported beams, therefore do not consider hall space mass action, space block mold is examined
Consider unilateral space behavior of the steel plate concrete hollow combination roof system concrete slab in all directions.Different from traditional roof system only by short
Ensure lateral stability to side wall, the length of unilateral steel plate concrete hollow combination roof system also provides out of plane stiffness to protect to side wall
Card lateral stability.As every Pin I shapes reinforcing bar concrete combination beam of unilateral steel plate concrete hollow combination roof system is all adopted respectively
From independent single load bearing pattern, thus punched when can meet construction temporarily and the later stage punch reinforcing etc. demand.
A kind of unilateral steel plate concrete hollow combination roof system described in the utility model, its construction procedure is：
If the steel skeleton in roof system is divided into according to the position of reactor building equipment hoisting mouth and on-site hoisting ability
Dry reinforcing bar shelf module, wherein, the reinforcing bar shelf module at equipment hoisting mouth is individually divided, and the reinforcing bar shelf module is by some
Pin i shaped steel skeletons are spliced；I shaped steel skeleton 11, steel embedded part 6, steel corbel 4, steel embedded part 5 and level are made in factory
The i shaped steel skeleton 11 of corresponding Pin numbers is spliced into each reinforcing bar by mould steel skeleton partition requirement by all kinds of steel beam columns such as support
Shelf module, and steel embedded part 6 is welded on into each reinforcing bar shelf module two ends forms corresponding reinforcing bar frame module G respectively, install each
Steel corbel 4 is formed supporting module H with the welding of steel embedded part 5 by the horizontal support 7 in reinforcing bar frame module G；Treat factory building side wall concrete
When being poured into specified absolute altitude (absolute altitude is determined according to roof design), by the embedment of supporting module H, Factory Building length is to side wall 0-1 and pours
Reinforcing bar frame module G at non-equipment hoisting mouth is hung to support to roof system bottom absolute altitude a after concrete coagulation hardening by concrete
In module H, reinforcing bar frame module G two ends are connected with supporting module H；Extraordinary maintenance structure at roof equipment hoisting port is installed, is faced
When enclosed structure form can be light-duty steel worm-gearing, adopted with reinforcing bar top flange steel plate 11-1 by light-duty steel worm-gearing bearing connecting plate
High-strength bolt 3 connects；Factory building side wall concreting is to the high b of roof system top mark, while installing reinforcing bar frame module G and short side wall
Horizontal support 7 between 0；The reinforcing bar of 1 base plate of colligation I shape reinforcing bar concrete combination beam, pours i shaped steel reinforced concrete bottom
Plate hight degree scope inner concrete, while pour, I shape reinforcing bar is mixed
Solidifying soil web, top board are successively according to construction of bottom plates；Extraordinary maintenance structure is removed after equipment is marched into the arena, armamentarium rigging out is treated
Afterwards, according to roof system at the working procedure building equipment hoisting port of roof system at non-equipment hoisting mouth, complete whole one side steel plate coagulation
The construction of native hollow combination roof system；
In-service period is punched temporarily to roof system, first removes roof system at original equipment hoisting port, in-service period main equipment
After the completion of changing or overhauling, the reinforcing bar shelf module at the original equipment hoisting port for remaking is installed, is completed according to abovementioned steps
The field fabrication of roof system armored concrete at original equipment hoisting port.
The unilateral steel plate concrete hollow combination roof system of proposition of the present utility model is particularly well-suited to large span factory of nuclear power plant
Room, it may also be used for other are similar with nuclear power plant large-span industrial building, and there is the demand that punches temporarily, civil engineering and equipment to install cross-operation
Complicated large span structures.
Claims (4)
1. a kind of unilateral steel plate concrete hollow combination roof system, it is characterised in that the outward flange of the roof system with support the roof system
Building side wall connects, and the roof system is to be spliced to form by some Pin I shape reinforcing bar concrete combination beams parallel to each other successively
Portion carries multiple hollow prolate cube box-structures, and the I shape reinforcing bar concrete combination beam is and can meet unidirectional independent
The combination beam of force request.
2. one side steel plate concrete hollow combination roof system as claimed in claim 1, it is characterised in that described each Pin I shapes
The structure of steel reinforced concrete combination beam is identical, including upper and lower asymmetrical i shaped steel skeleton, reinforcing bar and I-shaped concrete,
The i shaped steel skeleton is formed by connecting by reinforcing bar top flange, reinforcing bar web and reinforcing bar lower flange, and reinforcing bar is uniformly set on lower flange
There is peg；Wherein, the reinforcing bar be evenly arranged in the upper and lower both sides in reinforcing bar top flange, on the upside of reinforcing bar lower flange and reinforcing bar web two
Side；Box permanent template is additionally provided between the intraskeletal reinforcing bar web of two adjacent i shaped steels, I-shaped concrete is poured
In the space enclosed by box permanent template and reinforcing bar lower flange, ultimately form i shaped steel reinforced concrete and partly wrap up work
The combined beam structure of font steel skeleton.
3. one side steel plate concrete hollow combination roof system as claimed in claim 2, it is characterised in that the adjacent i shaped steel
The reinforcing bar lower flange of bone is fixedly connected by connector, or the reinforcing bar lower flange of some Pin I shapes reinforcing bars is adopted a monoblock
Steel plate is made.
4. one side steel plate concrete hollow combination roof system as claimed in claim 2, it is characterised in that perpendicular to i shaped steel
To multiple tracks horizontal support is uniformly arranged, the horizontal support is connected with steel skeleton top flange steel plate axis of bone by otic placode, the level
Supporting base end portion is connected with building short side wall, and the interlude of horizontal support is connected with adjacent I shape reinforcing bar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060996.6U CN206091004U (en) | 2016-09-18 | 2016-09-18 | Hollow combination room of unilateral steel plate concrete lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060996.6U CN206091004U (en) | 2016-09-18 | 2016-09-18 | Hollow combination room of unilateral steel plate concrete lid |
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| Publication Number | Publication Date |
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| CN206091004U true CN206091004U (en) | 2017-04-12 |
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ID=58478988
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284788A (en) * | 2016-09-18 | 2017-01-04 | 中核能源科技有限公司 | A kind of unilateral steel plate concrete hollow combination roof system |
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2016
- 2016-09-18 CN CN201621060996.6U patent/CN206091004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284788A (en) * | 2016-09-18 | 2017-01-04 | 中核能源科技有限公司 | A kind of unilateral steel plate concrete hollow combination roof system |
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