CN203096948U - Connecting structure of precast composite frame beam and precast composite secondary beam - Google Patents
Connecting structure of precast composite frame beam and precast composite secondary beam Download PDFInfo
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- CN203096948U CN203096948U CN 201320079711 CN201320079711U CN203096948U CN 203096948 U CN203096948 U CN 203096948U CN 201320079711 CN201320079711 CN 201320079711 CN 201320079711 U CN201320079711 U CN 201320079711U CN 203096948 U CN203096948 U CN 203096948U
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Abstract
The utility model relates to a connecting structure of a precast composite frame beam and a precast composite secondary beam. The connecting structure of the precast composite frame beam and the precast composite secondary beam comprises a precast composite frame beam precast member, a precast composite secondary beam precast member and a cast-in-place composite layer. Two sides of the precast composite frame beam precast member are respectively provided with a first pre-buried steel plate in a buried mode. A second pre-buried steel plate is arranged at the lower end portion of the precast composite secondary beam precast member in a buried mode. A lower longitudinal pre-stress steel strand wire is arranged inside the precast composite secondary beam precast member. A longitudinal reinforcing steel bar is bound on the lower longitudinal pre-stress steel strand wire in a lap joint mode. The second pre-buried steel plate and the longitudinal reinforcing steel bar are welded. The first pre-buried steel plates and the second pre-buried steel plate are oppositely arranged. The first pre-buried steel plates and the second pre-buried steel plate are respectively provided with a panel joint steel plate in a welding mode. The panel joint steel plates are connected through bolts, so that the precast composite frame beam precast member and the precast composite secondary beam precast member are connected. The connecting structure of the precast composite frame beam and the precast composite secondary beam conforms to design standards and effectively improves the anchoring quality of the steel strand wire.
Description
Technical field
The utility model relates to a kind of building prefabricated components, is specifically related to the syndeton of a kind of prefabricated composite frame beam and prefabricated superimposed secondary beam, belongs to technical field of civil engineering.
Background technology
Use the pre-tensioning system precast prestressed superposed beam of steel strand as beam bottom prestressing force steel bar stress, it is big to have beam span, and deck-molding is little, and the advantage that steel using amount is few is used morely on precast prestressed concrete assembled integral frame construction.
For the frame construction of using prefabricated superposed beam, cause and the crossing inferior deck-molding of prefabricated composite frame beam of prefabricated superimposed secondary beam, cause the vertical steel strand in secondary beam bottom as cast-in-place beam, to connect layout, so make the anchoring of the vertical steel strand in prefabricated superimposed secondary beam bottom become the problem that needs are handled.Mainly contain two kinds of anchoring measures that solve the vertical steel strand in prefabricated superimposed secondary beam bottom at prefabricated composite frame beam and prefabricated superimposed girder connection place at present, a kind of is to punch in the beam prefabricated member of prefabricated composite frame relevant position, make the vertical steel strand in prefabricated superimposed secondary beam bottom to pass through from the hole, this method construction is complicated, and easily cause hole casting and compacting of concrete leakiness, steel strand overlap on together in the hole in addition, and concrete is relatively poor to the parcel effect of steel strand, and anchoring effect is undesirable; Another kind method is that half under the end of prefabricated superimposed secondary beam is partly reserved a bigger breach, the vertical steel strand in bottom are upwards bent in indentation, there, form a crotch anchor, this method also easily forms the indentation, there steel strand and overlaps each other, anchoring effect is undesirable, and the plastic strain of steel strand bending arc section is serious, and the straightway steel tendon of crotch is at random, easily cause the node steel strand to reveal the muscle phenomenon and occur, the staying to establish of big breach also can increase node formwork difficulty.
Secondly, be the Force Calculation model that vertical steel strand anchorage style in prefabricated superimposed secondary beam bottom and node connected mode also can have influence on time beam support, promptly by hinged or fixed calculating.Foregoing two kinds of secondary beam bottom steel strand anchorage styles, and the concrete plush copper of burying overhanging channel-section steel on prefabricated secondary beam prefabricated units beam-ends top underground or making evagination that generally adopts at present, be shelved on the node connected mode of the beam prefabricated member end face of prefabricated composite frame, dimension beam bottom steel strand anchoring effect is undesirable, and the cast-in-place overlapping layers of prefabricated superimposed secondary beam is thinner, position of joints cast-in-situ concrete and preform surfaces bond effect are undesirable, so for safety, the inferior beam support that in existing " precast prestressed concrete assembled integral frame construction tecnical regulations " prefabricated composite frame beam and prefabricated superimposed girder connection place is formed is set at and is articulated and connected.
Inferior beam support is set at when being hinged on the secondary beam Force Calculation, can cause secondary beam bottom steel bar stress consumption to increase more than 2 times than the bearing concretion state, simultaneously according to existing " Code for design of concrete structures " requirement, in fact inferior beam support place because of being subjected to partly constraint, so also also need additionally to dispose to be no less than 1/4 of secondary beam span centre lower rebar consumption, so cause the secondary beam amount of reinforcement significantly to increase on secondary beam top.
Therefore, for solving the problems of the technologies described above, necessaryly provide a kind of syndeton, to overcome described defective of the prior art with structure improved prefabricated composite frame beam and prefabricated superimposed secondary beam.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of can meet design specifications, and effectively solves the prefabricated composite frame beam of steel strand anchoring quality and the syndeton of prefabricated superimposed secondary beam.
For achieving the above object, the technical scheme that the utility model is taked is: the syndeton of a kind of prefabricated composite frame beam and prefabricated superimposed secondary beam, and it comprises the beam prefabricated member of prefabricated composite frame, prefabricated superimposed secondary beam prefabricated units and cast-in-place overlapping layers; Wherein, the both sides of the beam prefabricated member of described prefabricated composite frame are buried first pre-embedded steel slab respectively underground; On described prefabricated superimposed secondary beam prefabricated units bottom, bury second pre-embedded steel slab underground; Described prefabricated superimposed secondary beam prefabricated units comprise a superimposed secondary beam prefabricated units main part, are provided with down the longitudinal prestressing steel strand in described superimposed secondary beam prefabricated units main part; Overlap and be banded with longitudinal reinforcement on the described longitudinal prestressing steel strand down; This second pre-embedded steel slab welds mutually with longitudinal reinforcement; Described first pre-embedded steel slab and second pre-embedded steel slab are oppositely arranged; On described first pre-embedded steel slab and second pre-embedded steel slab, be welded with the node steel plate respectively, connect by bolt between the described node steel plate, the beam prefabricated member of prefabricated composite frame is connected with prefabricated superimposed secondary beam prefabricated units.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: further be provided with longitudinal prestressing steel strand, stirrup and vertical reinforced mesh in described superimposed secondary beam prefabricated units main part; Wherein, described second pre-embedded steel slab is embedded in the bottom of superimposed secondary beam prefabricated units main part in advance.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: it is the Ribbed Bar of HRB400 that described longitudinal reinforcement is selected the trade mark for use; The section area of described longitudinal reinforcement is equal to or greater than the following section area of longitudinal prestressing steel strand, and described longitudinal reinforcement colligation is in the upside of longitudinal prestressing steel strand down, and is partial to the inboard of superimposed secondary beam prefabricated units main part.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: adjacent two described longitudinal reinforcements are that same reinforcing bar bending forms; Straight minor face that is bent to form and the welding of second pre-embedded steel slab, weld bead height is not less than 6mm.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: described first pre-embedded steel slab and second pre-embedded steel slab all adopt Q235 steel or Q345 steel, and thickness is not less than 10mm; Described second pre-embedded steel slab is installed with the more described hole of the big 3mm of longitudinal prestressing steel strand diameter down in described longitudinal prestressing steel strand corresponding position down.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: the end in described superimposed secondary beam prefabricated units main part is provided with the structure teeth groove, and this structure teeth groove is positioned at the below of longitudinal prestressing steel strand downside 50mm; Described structure teeth groove is triangular in shape, and tooth depth 25mm, facewidth 50mm, teeth groove spacing 50mm, its number are 2-3.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: described superimposed secondary beam prefabricated units main part to the inside recessed 25mm in bottom of superimposed secondary beam prefabricated units main part, forms a small gap from the above 50mm of second pre-embedded steel slab top edge place.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: stay on the beam prefabricated member of described prefabricated composite frame and establish recess, described recess indent degree of depth 25mm, width is with described prefabricated superimposed beam width, and described notched bottoms is buried described first pre-embedded steel slab underground.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam further is set to: the gap width between beam prefabricated member of described prefabricated composite frame and the prefabricated superimposed secondary beam prefabricated units is 80mm, middle part is provided with a closed stirrup in the slit, and this closed stirrup is built in in-situ layer.
The syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam also is set to: described cast-in-place overlapping layers comprises cast-in-situ concrete, and secondary beam top longitudinal reinforcement, Vierendeel girder top longitudinal reinforcement, the cast-in-situ concrete of described cast-in-place overlapping layers is cast between beam prefabricated member of prefabricated composite frame and the prefabricated superimposed secondary beam prefabricated units, and the upper surface of beam prefabricated member of prefabricated composite frame and prefabricated superimposed secondary beam prefabricated units.
Compared with prior art, the utlity model has following beneficial effect:
1. second pre-embedded steel slab by described longitudinal reinforcement and described prefabricated superimposed secondary beam is welded to connect, reaching described longitudinal reinforcement and described lower prestress steel strand overlaps on request, the stress that steel strand produce can be passed to effectively second pre-embedded steel slab of described beam-ends by described longitudinal reinforcement under superimposed secondary beam moment of flexure influence, and pass to concrete by described beam-ends pre-embedded steel slab, so solved the anchoring difficult problem of prefabricated superimposed secondary beam lower rebar effectively.
2. be installed with hole for described lower prestress steel strand on second pre-embedded steel slab, can satisfy prefabricated superimposed secondary beam prefabricated units and on long-line pedestal, carry out the steel strand tension machine and put an operation.
3. described prefabricated superimposed secondary beam prefabricated units longitudinal reinforcement and described longitudinal prestressing steel strand down overlap by this patent requirement, increased longitudinal reinforcement quantity in prefabricated superimposed beam-ends bottom, when prefabricated superimposed secondary beam beam-ends bottom actual forced status is pressurized, can effectively reduce the concrete depth of section of pressure zone, thereby effectively improve the plasticity turning power of time beam-ends plastic hinge region.When prefabricated superimposed secondary beam beam-ends bottom is in certain tension state under the course under cyclic loading of wind load or seismic forces generation, the more described longitudinal prestressing steel strand down of described longitudinal reinforcement have better ductility, can effectively prevent the brittle fracture of prefabricated superimposed beam-ends.
4. described prefabricated superimposed secondary beam prefabricated units longitudinal reinforcement and described longitudinal prestressing steel strand down overlap by this patent requirement, cooperate again and place described reinforced mesh, in the time of can preventing that described down longitudinal prestressing steel strand from putting the concrete local compressive stress of its periphery is destroyed, can be prevented to cause carrying out of concrete longitudinal crack after reinforcing bar from reaching yield strength simultaneously.
5. described prefabricated superimposed secondary beam prefabricated units teeth groove and the described breach in bottom are together being built when cast-in-place with cast-in-place overlapping layers, can form several anti-shear concrete keys at described prefabricated composite frame beam and prefabricated superimposed secondary beam node location, and be aided with other shearing resistance measure, can bear the node shearing preferably, the described node steel plate at described prefabricated superimposed secondary beam of while and described prefabricated composite frame beam connecting node place, described stirrup also can be resisted big shearing, can bear the node shearing preferably, while anti-shear concrete key and described node steel plate, the pre-embedded steel slab of described special prefabricated composite frame beam connecting node place and described prefabricated superimposed secondary beam beam-ends also can be strengthened the bond effect of cast-in-situ concrete of node place and precast concrete, the node gap width is suitable in addition, can guarantee the cast-in-situ concrete vibration compacting, so can effectively evade the generation in crack, guarantee the quality of connection of node.
6. the connected mode of described prefabricated superimposed secondary beam and described prefabricated composite frame beam connecting node not only can effectively improve the shear behavior of node as previously mentioned and concrete effective adhesive be arranged, conduct by described node steel plate simultaneously couples together described prefabricated superimposed secondary beam bottom longitudinal reinforcement and prefabricated composite frame beam effectively, make described prefabricated composite frame beam and described prefabricated superimposed secondary beam, under the influence of load, can form good cooperative transformation at this node place, thereby make this node can meet the fixed requirement of node in the designing and calculating preferably, make that so described prefabricated superimposed secondary beam can be according to the fixed structure Design and Calculation of carrying out of bearing.
7. the connected mode of described prefabricated superimposed secondary beam and described prefabricated composite frame beam connecting node, under the situation that superimposed secondary beam prefabricated units are conducted oneself with dignity and working load is less, can remove the bracing frame of prefabricated superimposed secondary beam prefabricated units bottom, directly be supported on the beam prefabricated member of described prefabricated composite frame by node steel plate and bolt.
Description of drawings
Fig. 1 is the schematic diagram of the syndeton of prefabricated composite frame beam of the present utility model and prefabricated superimposed secondary beam.
Fig. 2 is that the side of the prefabricated superimposed secondary beam prefabricated units among Fig. 1 is cutd open schematic diagram.
Fig. 3 is the front schematic view of the prefabricated superimposed secondary beam prefabricated units among Fig. 1.
Fig. 4 is along the sectional view of A-A among Fig. 2.
Fig. 5 is second pre-embedded steel slab of prefabricated superimposed secondary beam prefabricated units and the connection diagram of reinforcing bar.
Fig. 6 is along the sectional view of B-B among Fig. 5.
Fig. 7 is the schematic diagram of the beam prefabricated member of prefabricated composite frame among Fig. 1.
The specific embodiment
See also Figure of description 1 to shown in the accompanying drawing 7, the utility model is the syndeton of a kind of prefabricated composite frame beam and prefabricated superimposed secondary beam, and it is made up of several parts such as the beam prefabricated member 1 of prefabricated composite frame, prefabricated superimposed secondary beam prefabricated units 3 and cast-in-place overlapping layerss 5.
Wherein, first pre-embedded steel slab 11 is buried at the two ends of the beam prefabricated member 1 of described prefabricated composite frame respectively underground, and described first pre-embedded steel slab 11 adopts Q235 steel or Q345 steel, and thickness is not less than 10mm.Adopt connecting reinforcement 12 to be welded to connect between described two first pre-embedded steel slabs 11.
Bury second pre-embedded steel slab 31 underground on the described prefabricated superimposed secondary beam prefabricated units 3, itself and first pre-embedded steel slab 11 are oppositely arranged.On described first pre-embedded steel slab 11 and second pre-embedded steel slab 31, be welded with node steel plate 6 respectively, connect by bolt between the described node steel plate 6, the beam prefabricated member 1 of prefabricated composite frame is connected with prefabricated superimposed secondary beam prefabricated units 3.
Further, described prefabricated superimposed secondary beam prefabricated units 3 comprise a superimposed secondary beam prefabricated units main part 32, are provided with longitudinal prestressing steel strand 33, following longitudinal prestressing steel strand 34, stirrup 35 and vertical reinforced mesh 36 in described superimposed secondary beam prefabricated units main part 32.Wherein, overlap and be banded with longitudinal reinforcement 37 on the described longitudinal prestressing steel strand 34 down.
It is the Ribbed Bar of HRB400 that described longitudinal reinforcement 37 is selected the trade mark for use, and its section area is equal to or greater than the following section area of longitudinal prestressing steel strand 34.Described longitudinal reinforcement 37 colligations are in the following upside of longitudinal prestressing steel strand 34, and are partial to the inboard of superimposed secondary beam main part 32.The lap length of this longitudinal reinforcement 37 and described bottom prestress wire 34 is more than or equal to 1.2 times of the anchorage length of steel bar that calculates with described longitudinal reinforcement 37 diameters and described prefabricated superimposed secondary beam prefabricated units 3 concrete axial tensile strength design loads that calculates according to existing " Code for design of concrete structures ".Adjacent two described longitudinal reinforcements 37 form for same reinforcing bar bending; Straight minor face 371 that is bent to form and 31 welding of second pre-embedded steel slab, weld bead height is not less than 6mm.
Described second pre-embedded steel slab 31 adopts Q235, Q345 steel, and steel plate thickness is not less than 10mm, and it is embedded in the bottom of superimposed secondary beam prefabricated units main part 32 in advance, and this second pre-embedded steel slab 31 welds mutually with longitudinal reinforcement 37.Described second pre-embedded steel slab 31 is installed with the hole 311 of the big 3mm of more described lower prestress steel strand 34 diameters at described lower prestress steel strand 34 correspondence positions.
Be provided with structure teeth groove 321 in the end of described superimposed secondary beam prefabricated units main part 32, this structure teeth groove 321 is positioned at the below of longitudinal prestressing steel strand 33 downside 50mm.Described structure teeth groove 33 is triangular in shape, and tooth depth 25mm, facewidth 50mm, teeth groove spacing 50mm, its number are 2-3.Described superimposed secondary beam prefabricated units main part 32 to the inside recessed 25mm in bottom of superimposed secondary beam prefabricated units main part 32, forms a small gap 322 from the above 50mm of second pre-embedded steel slab, 31 top edges place.
Described reinforced mesh 36 is a normally used reinforced mesh in the pretensioning prestressed concrete member, and specific requirement can be carried out according to current specifications.
Stay on the beam prefabricated member 1 of described prefabricated composite frame and establish recess 13, described recess 13 indent degree of depth 25mm, width is with described prefabricated superimposed secondary beam prefabricated units 3, described recess 13 bottoms are buried described first pre-embedded steel slab 11 underground, the inner bottom surface height is that first pre-embedded steel slab 11 highly adds 40mm, and described recess 13 opening surface height are that described recess 13 inner bottom surface height increase 50mm.
Described cast-in-place overlapping layers 5 comprises cast-in-situ concrete 51, and secondary beam top longitudinal reinforcement 52 and Vierendeel girder top longitudinal reinforcement 53, the cast-in-situ concrete 51 of described cast-in-place overlapping layers is cast between beam prefabricated member 2 of prefabricated composite frame and the prefabricated superimposed secondary beam prefabricated units 2, and the upper surface of prefabricated superposed beam prefabricated units 2 and prefabricated superimposed secondary beam prefabricated units 3.
The middle part in the slit between described prefabricated superposed beam 2 and prefabricated superimposed secondary beam 3 is provided with a closed stirrup 7, and this closed stirrup 7 is built in cast-in-place overlapping layers 5.
The above specific embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (10)
1. the syndeton of a prefabricated composite frame beam and prefabricated superimposed secondary beam is characterized in that: comprise the beam prefabricated member of prefabricated composite frame, prefabricated superimposed secondary beam prefabricated units and cast-in-place overlapping layers; Wherein, the both sides of the beam prefabricated member of described prefabricated composite frame are buried first pre-embedded steel slab respectively underground; On described prefabricated superimposed secondary beam prefabricated units bottom, bury second pre-embedded steel slab underground; Described prefabricated superimposed secondary beam prefabricated units comprise a superimposed secondary beam prefabricated units main part, are provided with down the longitudinal prestressing steel strand in described superimposed secondary beam prefabricated units main part; Overlap and be banded with longitudinal reinforcement on the described longitudinal prestressing steel strand down; This second pre-embedded steel slab welds mutually with longitudinal reinforcement; Described first pre-embedded steel slab and second pre-embedded steel slab are oppositely arranged; On described first pre-embedded steel slab and second pre-embedded steel slab, be welded with the node steel plate respectively, connect by bolt between the described node steel plate, the beam prefabricated member of prefabricated composite frame is connected with prefabricated superimposed secondary beam prefabricated units.
2. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam is characterized in that: further be provided with longitudinal prestressing steel strand, stirrup and vertical reinforced mesh in described superimposed secondary beam prefabricated units main part; Wherein, described second pre-embedded steel slab is embedded in the bottom of superimposed secondary beam prefabricated units main part in advance.
3. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam is characterized in that: it is the Ribbed Bar of HRB400 that described longitudinal reinforcement is selected the trade mark for use; The section area of described longitudinal reinforcement is equal to or greater than the following section area of longitudinal prestressing steel strand, and described longitudinal reinforcement colligation is in the upside of longitudinal prestressing steel strand down, and is partial to the inboard of superimposed secondary beam prefabricated units main part.
4. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam is characterized in that: adjacent two described longitudinal reinforcements are that same reinforcing bar bending forms; Straight minor face that is bent to form and the welding of second pre-embedded steel slab, weld bead height is not less than 6mm.
5. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam is characterized in that: described first pre-embedded steel slab and second pre-embedded steel slab all adopt Q235 steel or Q345 steel, and thickness is not less than 10mm; Described second pre-embedded steel slab is installed with the more described hole of the big 3mm of longitudinal prestressing steel strand diameter down in described longitudinal prestressing steel strand corresponding position down.
6. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam, it is characterized in that: the end in described superimposed secondary beam prefabricated units main part is provided with the structure teeth groove, and this structure teeth groove is positioned at the below of longitudinal prestressing steel strand downside 50mm; Described structure teeth groove is triangular in shape, and tooth depth 25mm, facewidth 50mm, teeth groove spacing 50mm, its number are 2-3.
7. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam, it is characterized in that: described superimposed secondary beam prefabricated units main part to the inside recessed 25mm in bottom of superimposed secondary beam prefabricated units main part, forms a small gap from the above 50mm of second pre-embedded steel slab top edge place.
8. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam, it is characterized in that: on the beam prefabricated member of described prefabricated composite frame, stay and establish recess, described recess indent degree of depth 25mm, width is with described prefabricated superimposed beam width, and described notched bottoms is buried described first pre-embedded steel slab underground.
9. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam, it is characterized in that: the gap width between beam prefabricated member of described prefabricated composite frame and the prefabricated superimposed secondary beam prefabricated units is 80mm, middle part is provided with a closed stirrup in the slit, and this closed stirrup is built in in-situ layer.
10. the syndeton of prefabricated composite frame beam as claimed in claim 1 and prefabricated superimposed secondary beam, it is characterized in that: described cast-in-place overlapping layers comprises cast-in-situ concrete, and secondary beam top longitudinal reinforcement, Vierendeel girder top longitudinal reinforcement, the cast-in-situ concrete of described cast-in-place overlapping layers is cast between beam prefabricated member of prefabricated composite frame and the prefabricated superimposed secondary beam prefabricated units, and the upper surface of beam prefabricated member of prefabricated composite frame and prefabricated superimposed secondary beam prefabricated units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079711 CN203096948U (en) | 2013-02-21 | 2013-02-21 | Connecting structure of precast composite frame beam and precast composite secondary beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079711 CN203096948U (en) | 2013-02-21 | 2013-02-21 | Connecting structure of precast composite frame beam and precast composite secondary beam |
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| CN203096948U true CN203096948U (en) | 2013-07-31 |
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| CN 201320079711 Expired - Fee Related CN203096948U (en) | 2013-02-21 | 2013-02-21 | Connecting structure of precast composite frame beam and precast composite secondary beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725399A (en) * | 2019-10-15 | 2020-01-24 | 广州瀚阳工程咨询有限公司 | Implementation method of longitudinal and transverse beam connecting node of fabricated building |
-
2013
- 2013-02-21 CN CN 201320079711 patent/CN203096948U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725399A (en) * | 2019-10-15 | 2020-01-24 | 广州瀚阳工程咨询有限公司 | Implementation method of longitudinal and transverse beam connecting node of fabricated building |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170517 Address after: Xiashi town shuiyueting road Haining city Jiaxing City, Zhejiang province 314400 No. 288 Patentee after: Zhejiang Hua Heng Architectural Design Co., Ltd. Address before: 312000 Shaoxing, Vietnam, the city of North Zhongxing Road, No. 339, No. Patentee before: Huahui Engineering Design Group Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |