WO2014043826A1 - Sistema y método de conexión viga-columna - Google Patents
Sistema y método de conexión viga-columna Download PDFInfo
- Publication number
- WO2014043826A1 WO2014043826A1 PCT/CL2013/000067 CL2013000067W WO2014043826A1 WO 2014043826 A1 WO2014043826 A1 WO 2014043826A1 CL 2013000067 W CL2013000067 W CL 2013000067W WO 2014043826 A1 WO2014043826 A1 WO 2014043826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- column
- console
- connection system
- bars
- plate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000011440 grout Substances 0.000 claims description 23
- 230000002787 reinforcement Effects 0.000 claims description 12
- 238000004873 anchoring Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 description 17
- 238000012546 transfer Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 239000011372 high-strength concrete Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
Definitions
- the present invention relates to connection systems of structural elements prefabricated or manufactured on site, in particular of the union beam-column, critical element for the correct seismic performance of a prefabricated structure.
- the present invention describes beam-column joining modalities, which consider joining systems by using a console that supports and centers the beam, as well as various alternatives for fixing the beam including welding, pins and bolts.
- it is possible to generate the union of a prefabricated beam to a prefabricated column in such a way that the union allows to transfer in a good way the loads of the beam to the column (forces and moments) as well as allowing a quick and simple assembly and the generation of the union of the elements.
- Bracket or platform eg see WO2010037775 A2
- the joint will be generated by installing the negative moment bars and concreting the beam steel column interface, allowing the beam to transfer moments (both positive and negative) to the column and that a plastic ball joint can be generated on the beam dissipating energy.
- the console is a bulge outside the column and below the beam, for aesthetic reasons sometimes requires a false sky below the consoles in order to hide them with a consequent reduction of useful space.
- Another option considers the removal of the console once the joint has been forged, which requires further activity in addition to the removal of debris.
- consoles which are installed prior to the assembly of the beam. These consoles are joined as a jacket external to the column and can support the weight of the beam during the process of assembly and fixing of the prefabricated system. Once the concrete of the joint is set and on the beams, the console is removed, which again means an additional operation.
- console proposed in (ES 2369612 Al) considers the use of a vertical bar or guide located in the console of the beam.
- the bar fits in a cylindrical cavity located in the beam in order to limit the horizontal displacement of the beam on the console.
- This solution also includes a bolted joining system that joins the metal bars that are on top of the beam with the column.
- This solution requires the use of a permanent console below the beam with the limitations that this includes.
- the solution proposed in the patent FR 2466576 considers the use of a console that remains inserted in the beam.
- This console usually metallic, is mounted as a jacket to the column in all its outline at the height of the union with the beam.
- the fixation of the console to the beam is achieved by plates that are part of the faces of the jacket and that are outside the plane of each face, therefore said plates penetrate the concrete of the column fixing it in its final position.
- the beam is installed resting on the console that is U-shaped so that the beam rests on the bottom of the U. Subsequently, metal bars are installed to take the negative moment efforts acting on the beam.
- the last solution proposed in FR 2466576 includes a U-shaped console, which has a horizontal plate attached to the wall of the jacket facing the beam to which the positive moment bars of the beam are welded once This has been installed, thus achieving the transmission of these bars to the column.
- the greatest limitation of this solution is the little accessibility that exists to carry out the welding of the bars once the beam is installed, given the small distance that normally exists between a beam and a prefabricated column.
- One of the main elements of the invention is to have a metallic connector that is partially inserted in a column and that allows the support of the beam and the fixing thereof. Likewise, the solution must allow an easy connection of the negative moment bars that are installed on the beam to connect it to the column.
- the present invention is aimed at facilitating the joining of prefabricated elements, specifically one or more beams to a column.
- the different types of joint proposed correspond to wet joints, so they will require filling with concrete or high strength grout between the beam and the column to generate a monolithic union.
- console that is partially inserted in the column and that allows to hold and fix the beam during the construction process of the union as well as transmit loads when the construction of the union is completed.
- the invention proposed in its five versions considers the use of a console, usually metallic, and can also be made of other composite or polymeric materials for example.
- Bliss Console protrudes from the column and has a part of it inserted into the column.
- the console in a first version has the shape of a channel or U and allows locating and restricting the vertical and lateral movement of the beam.
- the beam will have enough thickness reductions in the area of the joint so that the console is in the same plane as the rest of the faces of the beam in contact with the console, thus achieving a discreet union.
- the proposed joint system considers the existence of horizontal cavities in the column conveniently located on the beam where the negative moment bars will be housed or transferred as necessary.
- the negative moment bars will penetrate into the cavity of the column and will count at their ends with soldered or other terminals to ensure a simple and correct connectivity between the bars and the grout. or another with which the cavity is filled.
- the negative moment bars of both columns will be the same, which will pass through the existing cavity column, which will then be filled with concrete or high strength grout .
- the negative moment bars will have terminals that ensure their correct connection to the concrete.
- the different modalities consider common elements such as (a) a U-shaped or flat console inserted in the column and leaning in the direction of the beam, which serves as support for the beam, (b) a cavity in the column by on the beam that is where they insert and anchor the bars of negative moment and (c) a beam with a suitable geometry to fit in the console and have the necessary elements to achieve a proper union.
- the proposed variants include: (i) that the bottom plate of the console has cavities or perforations, which allow to generate a welded joint of the console to a metal plate located in the lower part of the beam in the area of the joint.
- the lower plate of the beam is welded to the bars of positive moment of the beam, thus allowing to transfer the tensions of said bars to the column, (ii) the use of an union bolted between the plate that is located below the beam and the console; (iii) the use of cylindrical vertical pins or with another geometry, usually metallic, attached to the horizontal plate of the console, which fit in existing cavities in the area of the union of the beam.
- a second version of the console simpler, considers only the use of a horizontal plate that being inserted in the column and protruding from it, serves as support for the beam, in addition this plate will allow the transfer of efforts between the beam and the column .
- the joining systems that can be used in this version of the console are the same as for the previous version except for the one that uses the side plates to anchor the horizontal pin.
- FIG. 1 shows a side view of the joint where you can see the console protruding from the column and the beam embedded in the console; on the beam the slab that forms the floor of a structure is distinguished.
- FIG. 2 shows the console that is partially inserted in the column.
- FIG. 3 shows an isometric view of the console.
- FIG. 4 shows a view of the console that can be used to join 3 beams to a column in the same joint.
- FIG. 5 shows the proposed joint system that considers the welding connection of the lower plates of the beam and the console through slots in the latter.
- FIG. 6 shows the proposed joint system that considers the bolted connection of the lower plates of the beam and the console.
- FIG. 7 shows the proposed joint system that has at least one element or vertical bar perpendicular to the horizontal plate and welded to it.
- FIG. 8 shows the proposed joint system that considers a horizontal pin that will remain bolted on the side plates of the console locking the positive moment bars of the beam.
- FIG. 9 shows the proposed joint system that considers a horizontal pin and bars that protrude from both the beam and the C-shaped column.
- FIG. 10 shows the system of union of the beam to the column which uses vertical plates inside the console to accommodate the horizontal pin.
- FIG. 11 shows the connection system of the negative moment bars entering a cavity of the column and where the bars have terminals that allow it to be fixed when the cavity is concreted.
- FIG. 12 shows the connection system of the negative moment bars when there is a beam that continues to the opposite side of the column.
- the solution proposed by the present invention consists in providing a connection system for prefabricated beam-column with steel reinforcement and concrete body.
- This system of union can be used in the construction of structures both buildings and industrial buildings (ex. sheds), sports facilities among others.
- Figure 1 shows a side view of the proposed joint system which has a console (1) that being inserted in the column (2) supports the beam (3) on which the slab (30) will be built.
- console (1) with a U, V, V truncated, semi-cylindrical or flat shape, which is partially inserted in the column (2), as shown in Figure 2 , for the U-shaped console.
- the console (1) protrudes from the column (2) in order to receive the beam.
- the proposed solution considers multiple systems for joining or fixing the beam (3) to the console (1), which allow the forces between the beam (3) and the column (2) to be transferred.
- the console (1) penetrates the column and has a geometry such that it allows to anchor in it (2), distribute the loads adequately to the interior of the column (2) and not interfere with the internal elements of the column (2) (ex. longitudinal (4) and confinement).
- each console is formed by at least 3 main plates, two vertical (6) and one horizontal (7).
- the vertical (6) and horizontal (7) plates have a geometry such that they penetrate and remain inserted inside the column (2) thus being able to transmit the loads between the beam (3) and the column (2).
- the plate (7) when penetrating the column (2), does not interfere with the longitudinal reinforcement (4) that is inside the column (2), the plate (7) must have grooves or perforations (8) that allow the passage of the vertical reinforcement (4) to the interior of the column (2). As shown in Figure 2, so that the horizontal plate (7) transmits the tensile loads that act on it to the column generated by the tensions of the positive moment bars (9), then it will proceed to join in the end of the horizontal plate (7) that remains inside the column (2), with a fourth vertical plate (29), thus generating a tensile-resistant anchor with the concrete of the column (2).
- the horizontal plate (7) transmits the tensile loads to the column (2) considers that the plate has its end that remains inside the column (2) bent, in order to generate a strong anchor. It will also be possible to anchor the horizontal plate of the console to the inside of the beam when welding on its upper and / or lower side pre-bent bars that have a J shape or hook so that they remain inserted in the column. Another anchoring alternative includes the use of studs or mushroom-shaped metal pieces or nail that are welded to the upper and lower surfaces of the horizontal plate of the console, in the area remaining inside the column, to increase the surface of the contact with the concrete of the column. Finally, it is proposed to anchor the console plate to the column concrete using vertical bars, which are joined to the plate by welding or through specially made perforations of the plate.
- the vertical plates (6) can have a L-shaped lying down, where the part of greater width and surface is outside the column and the smaller width is inserted in the column (2) and does not interfere with the enclosure horizontal or confinement to the inside of the column.
- the side plates should be anchored to the concrete of the column (2), for which purpose the use of plates (31) joining both vertical plates (6) as shown in Figure 3 is proposed. Depending on the requirements, more than one plate (31) will be used.
- the use of studs or welded bars to the side plates of the console is also contemplated.
- console is formed from a single plate that is bent to have the appropriate geometry in addition to having cuts, perforations or other to allow to accommodate the longitudinal and confinement bars inside the column.
- a solution is proposed that considers the use of a structure that forms and connects multiple consoles within the column (2) at the same time do not interfere and allow to accommodate the longitudinal (4) and confinement of the column (2).
- These solutions may share the same horizontal plate (7), which must have a suitable geometry so as not to interfere with the column reinforcements (2).
- the vertical plates (6) of each console will be joined together which allows generating appropriate anchors of the same ones inside the column (2).
- Figure 4 shows a view of the structure that can be used to form consoles to join 3 beams in the same joint.
- the console (1) Another option for the design of the console (1) considers that the vertical plates (6) are oriented in such a way that they are not parallel between them in the vertical direction, but have a greater opening in the upper part thereof. In this way the console (1) would have a V shape in a vertical cut, which allows the beam (3) to fit more easily during its installation.
- the opening and geometry of the vertical plates (6) must be such that they do not interfere with the reinforcement (4) inside the column (2).
- the console has a horizontal half tube shape which penetrates and remains inserted in the column (2).
- the beam (3) should have a cylindrical shape in the area where it will be supported by the console (1) in order to allow adequate contact.
- the geometry of the semi-tubular console in the area remaining inside the column (2) should be such that it does not interfere with the reinforcement of the latter.
- the present invention allows the anchoring of a beam (3) that has a reduction of its section in the area of connection with the console (1) so that the console is in the same plane as the sides of the beam, this makes aesthetically it looks better, but does not limit the implementation of a console (1) that anchors constant section beams.
- FIG. 5 A first embodiment of the proposed joint system is shown in Figure 5.
- This joint consists of a welded joint between the console (1) and the beam (3).
- the beam (3) will have in the interaction zone with the horizontal plate (7) of the console (1) a horizontal metal plate (11) that is attached to it in its lower part.
- the horizontal plate (7) of the console (1) will have one or more perforations or one or more slots (13), which will facilitate generating a weld of the necessary length capable of resisting the efforts to which it is subjected.
- the transfer of forces from the positive moment bars (9) from the beam (3) to the column (2), by intermediate of the console (1), will be achieved when said bars (9) are welded to the plate (11) of the beam on the upper side this.
- the plate (7) has perforations or cavities that allow both plates to be welded.
- the beam (3) also has a horizontal plate (11) in its lower part with a vertical side plates in the area of the union with the console (1), which can serve to anchor the internal reinforcement of the beam (3).
- FIG. 6 A second joining mode is shown in Figure 6, which also considers the use of a plate (11) in the lower part of the beam (3) joined in its upper part to the positive moment bars (9).
- the bolts (15) must pass through the plate (11) before it is installed on the beam.
- the distribution of the bolts (15) will coincide with perforations (14) in the console (1).
- the bolts (15) will penetrate the perforations (16), and will have a suitable length that allows them to protrude from the console, allowing later to insert the nuts (17) that they will generate the union.
- the bolts (15) can also be welded to the horizontal plate (7) of the console (1).
- the bolts can be replaced by pins that are pre-welded to the plate (11) and that once the beam (3) is installed on the console (1), the zone of the pins that is to be welded is in contact with the console (1).
- the horizontal plate (7) which supports the beam (3), has at least one element or vertical bar (18) perpendicular to the horizontal plate (7) and welded to it, wherein said vertical bar has circular, square, rectangular or convenience geometry that may or may not have grooved surface to improve the adhesion to grout or concrete.
- the beam (3) will have one or several vertical cavities (19) in the junction area with the horizontal plate (7) that will have the same spacing pattern as the vertical bars (18) of the console (1) ).
- the use of a curved plate joined the bars in the area where they surround the cavity is proposed in a way that allows to distribute the efforts of the bar in a lesser way to the vertical bars.
- the geometry of the vertical bar (18), specifically its length and section, must be such that it allows to adequately transmit the stresses between it and the beam through the grout or another that is occupied for filling.
- the vertical bars (18) may have grooves or other modifications to their surface so that good adhesion to the grout or concrete is achieved with which the cavity (19) is filled.
- the sections of the bar can be circular, rectangular, oval or other that allow an efficient transfer of efforts.
- a fourth method of joining the beam (3) to the column (2) uses a horizontal pin (20). This method considers the connection between the beam (3) and the column (2) using a pin (20) that allows to generate a mechanical fixation of the beam (3) to the console (1) as well as transferring the efforts of the bars positive moment (9) to column (2). For this, both in the beam (3) and in the column (2) or the console (1), there must be terminals that allow the insertion of the pin (20) that generates the joint. Subsequently the grout or high strength concrete that is used to fill the space between the beam (3) and the column (2) will fix all the elements in their final position forming the joint. If necessary, to insert the pin (20) into the overlapping area, one or both vertical plates (6) of the console (1) can be perforated in order to have access to said area.
- FIG 8. A first possible implementation of this solution is presented in Figure 8.
- the vertical plates (6) of the console (1) have perforations (21) through which between the pin (20) allowing these plates (6) receive the efforts and transfer them to the column (2).
- the beam (3) has on its face facing the column (2) with bars that have a C-shape (22) oriented vertically. Said bars when installing the beam (3) in its final position on the console (1) will be closer to the column (2) than the perforations (21) in the vertical plates (6), therefore when inserting the pin (20). ) and being supported on both vertical plates (6) will lock the movement of the beam (3).
- the pin (20) can be fixed to the vertical plates (6) by welding, the use of nuts (20b) at their ends or other permanent or temporary fixation solution.
- the efforts of the positive moment bars (9) of the beam (3) can be transmitted to the pin (20).
- the C-shaped bars (22) will be formed as the continuation of the positive moment bars (9), which will protrude from the face of the beam (3) facing the column (2) and re-enter on the beam (3) forming the C (22).
- both the beam (3) and the column (2) have vertically oriented C-shaped bars (22) and (23). These have a long such and a spacing such that they do not interfere with each other, nor with the faces of both the beam (3) and the column (2) when the first is mounted on the console (1) in its position definitive
- the length and spacing of the C's (22) and (23) must be such that an adequate overlap is achieved.
- a pin (20) will be inserted which will prevent the beam (3) from disengaging from the console (1) as well as transferring the efforts of the beam (3) to the column (2).
- FIG. 10 A third possible implementation for the union is shown in Figure 10.
- the positive moment bars (9) have a C shape (22) that allow the passage of a pin (20).
- the console (1) there will be vertical plates (25) which will have horizontal perforations (26) to accommodate the pin (20).
- Said plates (25) may be welded to the horizontal plate (7) of the console (1) as well as be independent of the console (1). In this case, they must penetrate inside the column (2).
- the existence of a perforation (26) is considered in at least one of the vertical plates (6) of the console for inserting the pin (20).
- the shape of the terminals of the beam and / or the column are not necessarily of type C, being possible to use U-shaped terminals or any to be agreed.
- a simplified version of the console (not illustrated) is also proposed, which consists mainly of a horizontal plate protruding from the column and serving as support for the beam.
- the horizontal plate will be partially inserted in the column, and if necessary, it will have perforations or grooves that allow the passage of the vertical bars of the column.
- the beam may or may not have a reduction of the section in the area that is supported on the console so that the lower face of the latter is in the same plane as the lower face of the beam.
- the horizontal plate that forms the console must be able to withstand the efforts that exist between the beam and the column. To ensure an adequate anchorage of the horizontal plate from the console to the column, it is proposed to use the same alternatives previously described.
- Said terminals may be formed by C-shaped bars both in the beam and in the column, or in replacement of the latter by perforated vertical plates welded to the console plate through which the pin is inserted.
- the space left between the beam and the column must be filled.
- Figure 11 shows the first joining mode of the negative moment bars (10) for the case where a beam (3) does not continue after the column (2), then the negative moment bars (10) will end and they will anchor inside the cavity (27), to be later filled with grout or high strength concrete.
- the bars (10) will have at their ends flat terminals (28) that allow to increase the reaction surface with the grout or high strength concrete with which the cavity will be filled.
- the terminals (28) are formed by a plate or other element either bolted or previously welded, which allows to increase the area of the bar (10), in the case of being welded to them (10) this will allow a resistant, simple and low cost union.
- Figure 12 shows the proposed modality for the connection of the negative moment bars (10) for the case that the beam (3) continues to the opposite side of the column (2).
- the negative moment bars (10) may be the same for both beams (3).
- the cavity will be filled with grout to fix the negative moment bars (10) inside the column (2).
- the proposed beam-column connection systems can be used in structures with or without seismic protection systems such as basal isolation, energy dissipation and Tuned Mass Damper (AMS).
- seismic protection systems such as basal isolation, energy dissipation and Tuned Mass Damper (AMS).
- AMS Tuned Mass Damper
- a partially immersed console is proposed in the column that extends outwardly to receive the beam and transmit loads to the column. It may or may not be inserted in the beam not protruding from it externally. In addition, it may have a rectangular, semi-tube or truncated V section in the projecting portion of the column and be formed by multiple plates or a system of a plate having a suitable geometry (for example, a console formed from a plate that deforms to generate the U shape). The case where the console is formed by a single horizontal plate is also considered. In all the In some cases, the console can support the weight of the beam and the loads applied to it. If necessary, it also allows the transmission of loads from the positive moment bars of the beam to the column.
- the invention allows that multiple consoles can be generated that allow joining more than one beam in different directions to the same column in the same node.
- the proposed solution has a geometry that does not interfere with the column's reinforcement (it has perforation cavities or a geometry such that it does not interfere with the longitudinal bars of the column and does not interfere with the confinement fence of the horizontal column) .
- the consoles may share the same horizontal plate with an appropriate geometry.
- these may or may not be joined inside the column forming a structure.
- Other advantages offered by the present invention are to be standardizable and easy to manufacture, assemble and install. In addition, it allows to generate a ductile connection in the beam and avoid the use of bolted or welded joints (CADWELD) of the positive and negative moment bars, which accelerates the process and reduces cost. In this way the proposed solution allows the ductile deformation of the beam to dissipate energy contributing to improve the dynamic response of the structure during an earthquake or other solicitation.
- CADWELD bolted or welded joints
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- Architecture (AREA)
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- Electromagnetism (AREA)
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- Structural Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2015003674A MX356910B (es) | 2012-09-21 | 2013-09-17 | Sistema y método de conexión viga-columna. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CL2012002623A CL2012002623A1 (es) | 2012-09-21 | 2012-09-21 | Sistema de conexion viga y columnas que permite la transmision de esfuerzos entre ellas, en donde la viga y la columna poseen armadura de acero y cuerpo de hormigon que comprende una consola permanente formada por al menos una placa metalica, parcialmente inserta en la columna y anclada a esta que se extiende hacia afuera de la columna para servir de apoyo a la viga; metodo de conexion de viga columna. |
CL2623-2012 | 2012-09-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014043826A1 true WO2014043826A1 (es) | 2014-03-27 |
Family
ID=50340501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CL2013/000067 WO2014043826A1 (es) | 2012-09-21 | 2013-09-17 | Sistema y método de conexión viga-columna |
Country Status (4)
Country | Link |
---|---|
CL (1) | CL2012002623A1 (es) |
MX (1) | MX356910B (es) |
PE (1) | PE20151106A1 (es) |
WO (1) | WO2014043826A1 (es) |
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ES2514117A1 (es) * | 2014-07-09 | 2014-10-27 | Universitat Politècnica De Catalunya | Pilar de apoyo para estructura modular, viga destinada a apoyarse en pilares de este tipo y estructura que comprende a dichos pilares y vigas |
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CN110284593A (zh) * | 2019-06-25 | 2019-09-27 | 启迪设计集团股份有限公司 | 一种内嵌式弱连接构造 |
CN111101709A (zh) * | 2020-01-20 | 2020-05-05 | 衡水通广通信导航设备有限公司 | 一种楼顶工艺型全向信标反射网及其施工方法 |
CN113653180A (zh) * | 2021-08-20 | 2021-11-16 | 中铁四局集团第五工程有限公司 | 一种“v”型型钢混凝土斜柱混合结构及其施工方法 |
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CN104005475A (zh) * | 2014-06-16 | 2014-08-27 | 王睿敏 | 易于安装的空心柱装配式框架体系及施工方法 |
CN104005476A (zh) * | 2014-06-16 | 2014-08-27 | 王睿敏 | 易于制作安装预制框架系统及施工方法 |
CN104005475B (zh) * | 2014-06-16 | 2016-08-24 | 王睿敏 | 易于安装的空心柱装配式框架体系及施工方法 |
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CN106812244A (zh) * | 2017-02-14 | 2017-06-09 | 杨志业 | 预制梁、装配式预应力连续叠合楼盖及楼盖的制作方法 |
CN106917452A (zh) * | 2017-03-07 | 2017-07-04 | 南通华新建工集团有限公司 | Pc结构梁柱节点处预应力梁金属波纹管內锚施工方法 |
CN110029729A (zh) * | 2019-04-04 | 2019-07-19 | 山东大学 | 一种预制钢筋混凝土主梁与次梁的拼接节点及施工方法 |
CN110284593A (zh) * | 2019-06-25 | 2019-09-27 | 启迪设计集团股份有限公司 | 一种内嵌式弱连接构造 |
CN111101709A (zh) * | 2020-01-20 | 2020-05-05 | 衡水通广通信导航设备有限公司 | 一种楼顶工艺型全向信标反射网及其施工方法 |
CN111101709B (zh) * | 2020-01-20 | 2021-12-10 | 衡水通广通信导航设备有限公司 | 一种楼顶工艺型全向信标反射网及其施工方法 |
CN113653180A (zh) * | 2021-08-20 | 2021-11-16 | 中铁四局集团第五工程有限公司 | 一种“v”型型钢混凝土斜柱混合结构及其施工方法 |
Also Published As
Publication number | Publication date |
---|---|
MX2015003674A (es) | 2016-01-14 |
CL2012002623A1 (es) | 2013-08-30 |
MX356910B (es) | 2018-06-20 |
PE20151106A1 (es) | 2015-08-21 |
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