NL2029933B1 - Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication - Google Patents

Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication Download PDF

Info

Publication number
NL2029933B1
NL2029933B1 NL2029933A NL2029933A NL2029933B1 NL 2029933 B1 NL2029933 B1 NL 2029933B1 NL 2029933 A NL2029933 A NL 2029933A NL 2029933 A NL2029933 A NL 2029933A NL 2029933 B1 NL2029933 B1 NL 2029933B1
Authority
NL
Netherlands
Prior art keywords
energy dissipating
shear wall
prestressed
connectors
damping
Prior art date
Application number
NL2029933A
Other languages
Dutch (nl)
Inventor
Zhang Chunwei
Xu Weixiao
Zhang Jigang
Liu Feifei
Ma Zhehao
Liang Haizhi
Original Assignee
Univ Qingdao Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Qingdao Technology filed Critical Univ Qingdao Technology
Priority to NL2029933A priority Critical patent/NL2029933B1/en
Application granted granted Critical
Publication of NL2029933B1 publication Critical patent/NL2029933B1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention relates to earthquake resisting and energy dissipating and damping control of building structures, and in particular, to a concrete energy dissipating and damping obligue prestressed shear wall structure system suitable for 5 prefabrication. The system includes a precast shear wall, prestressed cables, precast frame columns, corner constraint connectors, and energy dissipating members. Corrugated hoses are pre—buried inside the precast shear wall. The prestressed cables are arranged in the corrugated hoses. The corner constraint lO connectors are arranged at four corners of the precast shear wall. The corner constraint connectors are connected to the energy dissipating members. The present invention has the advantages that the consistency of the overall deformation is realized, the overall lateral displacement of a structure is controlled, l5 meanwhile, the shear wall structure has a certain self—reset capability, the overall deformation is beneficial to giving fully play to the energy dissipating characteristics of energy dissipating steel plates. 20 (+ Fig. l)

Description

P807/NLpd
ENERGY DISSIPATING AND DAMPING OBLIQUE PRESTRESSED SHEAR WALL
STRUCTURE SYSTEM SUITABLE FOR PREFABRICATION
TECHNICAL FIELD
The present invention relates to the field of earthquake re- sisting and energy dissipating and damping control of building structures, and in particular, to an energy dissipating and damp- ing oblique prestressed shear wall structure system suitable for prefabrication.
BACKGROUND ART
The commonly used reinforced concrete shear wall structure has high stiffness and small lateral deformation under a horizon- tal action, and is easy to meet the requirement of bearing capaci- ty, so it is widely used in build high-rise buildings.
On one hand, due to the uncertainty, suddenness, and destruc- tiveness of earthquakes, structural engineers and researchers have to go to all lengths. For strong earthquakes, engineering struc- tures cannot resist hard. The only way is to give full play to the ductility of the structures, sc as to reduce the stress response with deformation, exchange space for time, and overcome hardness with flexibility. Since a pure shear wall structure is not easy to be arranged flexibly and has too high stiffness, it is less ap- plied. One idea of structural optimization is to adjust the stiff- ness of the structure, so as to make the structure as soft as pos- sible and reduce the earthquake response of the structure on the premise of meeting deformation requirements of a specification.
For an assembled structure, it is more necessary to ensure the in- tegrity of the structure and strengthen the energy dissipation ca- pacity of the structure. In order to expand the application range of a shear wall and improve the earthquake resistance of the shear wall, many scholars have made a deep research on the shear wall structure.
On the other hand, the existing earthquake damage investiga- tion shows that a cast-in-place shear wall has good performance in the earthquake due to its good integrity and strong energy dissi- pation capacity. However, the cast-in-place shear wall structure often suffers serious damage and large residual deformation after a large earthquake. Although many buildings do not collapse in the earthquake, they need to be reconstructed due to poor reinforce- ment and repair performance. In addition, the construction of the cast-in-place structure is slow, and the arrangement of a shear wall system is not flexible enough. Therefore, the demand of in- dustrial production has also led to the exploration and research of a prefabricated shear wall structure. A research shows that a damage mechanism of prefabricated shear wall panels is the shear slip of a horizontal joint between the wall panels and the swaying of a wall body. A vertical joint mainly achieves an effect of dis- sipating energy. Meanwhile, the United States-Japan joint project
PRESSS has developed a reinforcing bar or a steel strand that pen- etrates through the prefabricated shear wall and its horizontal
Joint through post-tensiconing. After that, domestic scholars have also studied the structure with a prestressed reinforcing bar.
However, this structure has a large displacement under the action of the earthguake, has very little or no residual deformation, and has strong self-reset capability, but the biggest defect is that the energy dissipating capacity is obviously insufficient.
SUMMARY
In view of the disadvantages of a shear wall in the prior art, the present invention provides a concrete energy dissipating and damping oblique prestressed shear wall structure system capa- ble of being prefabricated, which solves the problems in the prior art.
The present invention is implemented through the technical solution as follows: a concrete energy dissipating and damping oblique prestressed shear wall structure system suitable for pre- fabrication includes a precast shear wall, prestressed cables, precast frame columns, corner constraint connectors, and energy dissipating members. Corrugated hoses are pre-buried inside the precast shear wall. The prestressed cables are arranged in the corrugated hoses. The corner constraint connectors are arranged at four corners of the precast shear wall. The corner constraint con- nectors are connected to the energy dissipating members. Bolt holes are formed in the corner constraint connectors. The pre- stressed cables are connected to joints of the precast frame col- umns through the corner constraint connectors. The precast shear wall is connected to the precast frame columns through the energy dissipating members at the corners. The shape of the energy dissi- pating member is a II-shape. Bolt holes, transverse holes, and longitudinal holes are formed in the energy dissipating members.
Further, the pre-buried corrugated hoses cross in the shear wall in an oblique direction. The prestressed cables are placed in the oblique corrugated hoses. The prestressed cables penetrate through the floor slabs to the corners of a lower shear wall body from the prestressed cables in an upper shear wall in an oblique diagonal direction in a manner of connecting in a staggered manner between floors, so that the overall deformation of the upper wall body and the lower wall body is consistent, and pre-stress is ap- plied by the prestressed cables by a post-tensioning method.
Further, holes for applying prestress are reserved when the precast frame columns are poured, and local reinforcing bars are arranged around the holes, so as to ensure the strength of frame joints. Connectors are arranged at the joints of the frame col- umns. When concrete columns are used, joint connecting steel plates are arranged in a pre-buried manner. The joint connecting steel plates are welded with reinforcing bar mesh cages inside the concrete columns, and then are poured into the columns. The system also is suitable for a built-in steel column, or a steel structure column.
The present invention has the following beneficial effects. (1) The concrete energy dissipating and damping oblique pre- stressed shear wall structure system suitable for prefabrication of the present invention, prestressed members, such as oblique prestressed cables, the reinforcing bars, and the steel strands, are arranged in the shear wall body, and the consistency of the overall deformation of the upper wall body and the lower wall body is realized in a manner of connecting between floors in a stag- gered manner. The overall lateral displacement of the structure can be controlled on the premise of ensuring that the lateral force stiffness of the shear wall system does not lose.
Meanwhile, the shear wall structure has certain self-reset capability, which coordinates the overall deformation after an earthquake.
The over- all deformation is also beneficial to giving full play to the en- ergy dissipation characteristics of energy dissipating steel plates, and a single weak link is avoided.
Meanwhile, the connect- ing requirement between vertical shear wall bodies can also be re- duced.
When the manners, such as sleeve connection, slurry-anchor connection, or mechanical connection, at the current stage are adopted, the loss caused by non-integral connection of the rein- forcing bars can also be reduced through the overall prestress among a plurality of layers of wall bodies.
(2) The concrete energy dissipating and damping oblique pre-
stressed shear wall structure system suitable for prefabrication of the present invention realizes effective connection between the frame columns and the shear wall system under the conditions of normal use or small earthquake by arranging replaceable energy dissipating members, which ensures the connecting stiffness be-
tween the shear wall system and a frame system and can effectively transfer horizontal force.
Compared with the existing national in- dustry standard recommendations of casting edge members in situ and prefabricating non-edge members, the overall earthquake re- sistance is obviously improved.
Under the action of a violent earthquake, the energy dissipating steel plates start to achieve an energy dissipating effect through plastic deformation, so that the overall deformation of the structure is concentrated on the energy dissipating members; and the strength reserve and the ener- gy consumption capacity of the joint are increased through the connection between the energy dissipating members and frame beam- column joints.
Meanwhile, due to the existence of the prestressed cables, the structure can give full play to the energy dissipating effect of the energy dissipating steel plates in a reciprocating displacement and deformation process, and the deformation reset capability of the shear wall system after the earthquake can also be ensured.
After the earthquake, damaged energy dissipating mem- bers can be replaced quickly by matching the self-reset capacity of the oblique prestressed members inside the shear wall body in a manner of detaching the bolts. (3) According to the concrete energy dissipating and damping oblique prestressed shear wall structure system suitable for pre- 5 fabrication of the present invention, members, such as the shear wall system and the frame columns, can be prefabricated in a fac- tory. In addition, both the connection between the energy dissi- pating members and the shear wall body and the connection between the frame beam-column joints and the shear wall are dry-type bolt connection, which improves the assembly efficiency of the overall.
Connecting positioning steel plates are reserved during produc- tion, so quick and accurate dry-type connection can be realized when the members are transported to the site for assembling, and hoisting is facilitated, so that the construction period can be effectively shortened, and quick and accurate assembling of the building structure is realized.
In conclusion, the concrete energy dissipating and damping oblique prestressed shear wall structure system suitable for pre- fabrication of the present invention has the advantages that the consistency of the overall deformation of the upper wall body and the lower wall body is realized, the overall lateral displacement of the structure is controlled, meanwhile, the shear wall struc- ture has a certain self-reset capability, the overall deformation is beneficial to giving fully play to the energy dissipating char- acteristics of the energy dissipating steel plates, a single weak link is avoided, the assembly efficiency of the overall structure is improved, on-site construction is facilitated, the construction period is effectively shortened, and the cost is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic diagram of an overall structure of the present invention.
FIG. 2 is a schematic diagram of a single-layer precast shear wall structure and a frame column structure.
FIG. 3 is a main view of FIG. 2.
FIG. 4 is a schematic structural diagram of an energy dissi- pating member.
FIG. 5 is a schematic structural diagram of a precast shear wall and a corner constraint connector.
FIG. 6 is a local schematic structural diagram of a connect- ing point between the precast shear wall and a precast frame col- umn.
Reference numerals in the drawings: 1-precast shear wall, 2- prestressed cable, 3-precast frame column, 4-corner constraint connector, 5-energy dissipating member, 6-energy dissipating steel plate, 7-horizontal hole, 8-bolt hole, 9S-connecting plate, and 10- longitudinal hole.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The present invention will be further described below with reference to accompanying drawings.
A concrete energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication includes a precast shear wall 1, prestressed cables 2, precast frame columns 3, corner constraint connectors 4, and energy dissipating members 5. Corrugated hoses are pre-buried inside the precast shear wall.
The prestressed cables are arranged in the corrugated hoses. The corner constraint connectors are arranged at four corners of the precast shear wall. The corner constraint connectors are connected to the energy dissipating members. Bolt holes 8 are formed in the corner constraint connectors. The prestressed cables are connected to joints of the precast frame column through the corner con- straint connectors. The precast shear wall is connected to the precast frame columns through the energy dissipating members at the corners. The shape of the energy dissipating member is a IT shape with an upper edge and a lower edge connected. Bolt holes, transverse holes 7, and longitudinal holes 10 are formed in the energy dissipating members.
Further, the pre-buried corrugated hoses cross in the shear wall in an oblique direction. The prestressed cables are placed in the oblique corrugated hoses. The prestressed cables penetrate through the floor slabs to the corners of a lower shear wall body from the prestressed cables in an upper shear wall in an oblique diagonal direction in a manner of connecting in a staggered manner between floors, so that the consistency of the overall deformation of the upper wall body and the lower wall body is realized, and the shear wall body structure has certain self-reset capability by arranging the prestressed cables, reinforcing bars or steel strands, which coordinates the overall deformation after an earth- quake. Pre-stress is applied by the prestressed cables by a post- tensioning method.
Further, holes for applying prestress are reserved when the precast frame column is poured, and local reinforcing bars are ar- ranged around the holes, so as to ensure the strength of a frame joint. Connectors are arranged at the joints of the frame columns.
When concrete columns are used, joint connecting steel plates are arranged in a pre-buried manner. The joint connecting steel plates are welded with reinforcing bar mesh cages inside the concrete columns, and then are poured into the columns. The system is also suitable for a built-in steel column or a steel structure column.
Further, when the shear wall is prefabricated, the corner constraint connectors are poured and consolidated in the concrete at four corners, so as to achieve an effect of connecting the shear wall and other members, and meanwhile, achieve an effect of improving the integrity of the body of the shear wall. The corner constraint connectors are poured at the corners of the shear wall in a manner of pre-burying, or are arranged at the four corners of the concrete shear wall through the welding with pre-buried mem- bers.
Further, the energy dissipating members are made of a metal material. The central part of the energy dissipating member con- sists of two parallel connecting plates 9 with longitudinal holes formed in the centers. Parallel energy dissipating steel plates 6 are welded to the two sides of the energy dissipating member.
Transverse holes are formed in the center of the energy dissipat- ing steel plate in the vertical direction. Bolt holes are formed in two ends of the energy dissipating steel plate. The connecting plate in the center of the energy dissipating member achieves an effect of a stiffening rib, transfers horizontal force, and en- sures the stability out of a plane of the energy dissipating mem- ber. Meanwhile, the longitudinal holes are formed in the connect-
ing plates in the center, so that the prestressed cables can pass through the longitudinal holes.
During construction, before the shear wall is poured, the steel plates achieve the effects of constraining and connecting are fixed to the reinforcing bar mesh cages at the four corners of the prefabricated shear wall in a manner of welding. The connect- ing steel plates are slightly longer than the shear wall body, and the steel plate parts used for connecting are exposed at the four corners of the shear wall body after concrete is poured. Mean- while, before the shear wall body is poured, the corrugated hoses are bound in the reinforcing bar mesh cages in the shear wall body, and are arranged inside the wall body at an angle of an oblique diagonal line or at an angle of obliquely penetrating through a middle point of a bottom end of the wall body. Holes are reserved at the outlets positions of the corners, the bottom, and the top, with pre-buried pipelines, of the wall body. The prefab- ricated shear wall body with a built-in prestresssed pipeline is completed after the pouring the completed.
When the frame columns are prefabricated in a factory, the connecting steel plates are pre-buried at the upper part of the frame columns, and meanwhile, holes used for the corrugated hoses to pass are reserved.
During construction, the replaceable energy dissipating mem- bers are mounted on the frame columns through bolt connection, and meanwhile, the other ends of the energy dissipating members are also connected to the constraint connecting steel plates at the four corners of the prefabricated shear wall body through bolt connection.
Then, the prestressed reinforcing bars and the steel strands penetrate into pipelines that are pre-buried inside the wall body through the reserved holes, and the prestressed reinforcing bars and the steel strands are tensioned after penetrating through the beam-column joints of a lower frame, and prestress is applied to the prestressed reinforcing bars or the steel strands. Two layers of shear wall bodies serve as a tensioning whole body and are con- nected and fixed between floors in a staggered manner.
The vertical connection between the shear wall bodies can adopt sleeve connection, slurry-anchor connection, mechanical con- nection, or the like.

Claims (3)

CONCLUSIESCONCLUSIONS 1. Betonnen energie afvoerend en dempend schuin voorgespannen schuifwandconstructiesysteem geschikt voor prefabricage, met het kenmerk, dat deze omvat een prefab schuifwand (1), voorgespannen kabels (2), geprefabriceerde framekolommen (3), hoekbeperkingscon- nectoren (4) en energie afvoerende delen (5), waarbij gegolfde slangen vooraf zijn ingegraven in de prefab schuifwand (1); waar- bij de voorgespannen kabels (2) in de gegolfde slangen zijn aange- bracht; de hoekbeperkingsconnectoren (4) zijn aangebracht op vier hoeken van de prefab schuifwand (1); de hoekbeperkingsconnectoren (4) zijn verbonden met de energie afvoerende delen (5); boutgaten (8) zijn gevormd in de hoekbeperkingsconnectoren (4); de voorge- spannen kabels (2) zijn verbonden met verbindingen van de prefab framekolommen (3) via de hoekbeperkingsconnectoren (4); de prefab schuifwand (1) is verbonden met de prefab framekolommen (3) via de energie afvoerende delen (5) op de hoeken; waarbij de vorm van het energie afvoerende deel een II-vorm is met een verbonden bovenrand en een onderrand; en waarbij boutgaten (8), transversale gaten (7) en longitudinale gaten (10) zijn gevormd in de energie afvoerende delen (5).A concrete energy-dissipating and damping inclined prestressed sliding wall construction system suitable for prefabrication, characterized in that it comprises a prefab sliding wall (1), prestressed cables (2), prefabricated frame columns (3), angle limiting connectors (4) and energy dissipating parts (5), with corrugated hoses pre-buried in the prefab sliding wall (1); the prestressed cables (2) being arranged in the corrugated hoses; the corner limiting connectors (4) are arranged at four corners of the prefabricated sliding wall (1); the angle limitation connectors (4) are connected to the energy dissipating members (5); bolt holes (8) are formed in the angle limitation connectors (4); the prestressed cables (2) are connected to joints of the prefabricated frame columns (3) via the angle limitation connectors (4); the prefabricated sliding wall (1) is connected to the prefabricated frame columns (3) via the energy dissipating parts (5) at the corners; wherein the shape of the energy dissipating portion is a II-shape with a connected top edge and a bottom edge; and wherein bolt holes (8), transverse holes (7) and longitudinal holes (10) are formed in the energy dissipating portions (5). 2. Betonnen energie afvoerend en dempend schuin voorgespannen schuifwandconstructiesysteem geschikt voor prefabricage volgens conclusie 1, met het kenmerk, dat de vooraf ingegraven gegolfde slangen in een schuine richting in de schuifwand kruisen; de voor- gespannen kabels in de schuine gegolfde slangen zijn geplaatst; en de voorgespannen kabels door de vloerplaten steken naar de hoeken van een onderste schuifwandlichaam vanaf de voorgespannen kabels in een bovenste schuifwand in een schuine diagonale richting op een manier om op een verspringende manier verbinding tussen vloe- ren te vormen, zodat de consistentie van de algehele vervorming van het bovenste wandlichaam en het onderste wandlichaam wordt ge- realiseerd, en voorspanning door de voorgespannen kabels wordt aangelegd door middel van een naspanmethode.2. Concrete energy-dissipating and damping obliquely prestressed sliding wall construction system suitable for prefabrication according to claim 1, characterized in that the pre-buried corrugated hoses cross in an oblique direction in the sliding wall; the prestressed cables are placed in the oblique corrugated hoses; and the prestressed cables protrude through the floorboards to the corners of a lower shear wall body from the prestressed cables in an upper shear wall in an oblique diagonal direction in a manner to form connection between floors in a staggered manner so that the consistency of the overall deformation of the upper wall body and the lower wall body is realized, and prestress by the prestressed tendons is applied by a post-tensioning method. 3. Betonnen energie dissiperend en dempend schuin voorgespannen schuifwandconstructiesysteem geschikt voor prefabricage volgens conclusie 1, met het kenmerk, dat gaten voor het aanbrengen van voorspanning worden gereserveerd wanneer de prefab framekolommenA concrete energy dissipating and damping obliquely prestressed sliding wall construction system suitable for prefabrication according to claim 1, characterized in that holes for applying prestress are reserved when the precast frame columns (3) worden gestort, en lokale wapeningsstaven zijn aangebracht rond de gaten, om de sterkte van frameverbindingen te waarborgen; connectoren zijn aangebracht bij de verbindingen van de frame- kolommen (3); waarbij, wanneer betonnen kolommen worden gebruikt, verbinding onderling verbindende staalplaten op een vooraf inge-(3) are poured, and local reinforcing bars are arranged around the holes, to ensure the strength of frame joints; connectors are arranged at the joints of the frame columns (3); where, when concrete columns are used, connection interconnecting steel plates on a pre-set graven manier zijn aangebracht; waarbij de gezamenlijke verbinding onderling verbindende staalplaten worden gelast met wapenings- staafgaaskooien in de betonnen kolommen en vervolgens in de kolom- men worden gegoten; en waarbij het systeem ook geschikt is voor een ingebouwde stalen kolom of een stalen constructiekolom.digging way are arranged; wherein the joint connection interconnecting steel plates are welded with reinforcing bar mesh cages into the concrete columns and then poured into the columns; and wherein the system is also suitable for a built-in steel column or a steel construction column.
NL2029933A 2021-11-26 2021-11-26 Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication NL2029933B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2029933A NL2029933B1 (en) 2021-11-26 2021-11-26 Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2029933A NL2029933B1 (en) 2021-11-26 2021-11-26 Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication

Publications (1)

Publication Number Publication Date
NL2029933B1 true NL2029933B1 (en) 2023-06-16

Family

ID=86938740

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2029933A NL2029933B1 (en) 2021-11-26 2021-11-26 Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication

Country Status (1)

Country Link
NL (1) NL2029933B1 (en)

Similar Documents

Publication Publication Date Title
CN106639037A (en) Energy-dissipation and shock-absorption oblique prestressed shear wall structure system suitable for prefabricated assembly
CN110512647B (en) Partial assembly type subway station structure design and construction method
KR101225662B1 (en) Prefabricated precast steel grid composite deck and the construction method therewith
CN102691257A (en) Continuous box girder made of corrugated steel web pre-tensioned prestressed concrete and construction method
CN206428853U (en) Energy-dissipation and shock-absorption oblique prestressed shear wall structure system suitable for prefabricated assembly
CN103388357A (en) Shock-proof prefabricated steel tube shear wall mixed structural building
CN110578287A (en) assembled earth covering corrugated steel plate-prestressed concrete combined arch bridge and construction method thereof
CN106368348A (en) Overlapped combined shear wall with double-phase stress characteristic
CN103031926B (en) With the double-T compound beam and preparation method thereof of pre-stressed steel pipe concrete plug
CN110670723A (en) Large-span prestressed concrete assembled building frame system
CN201133085Y (en) Structure for enhancing external prestressing force effect
CN110578289A (en) Novel steel-concrete composite beam shear force connecting key
CN104895231A (en) Assembled composite floor slab and manufacturing method thereof
CN202610696U (en) Corrugated steel web pre-tensioning pre-stressed concrete continuous box beam
CN108222063B (en) Integral underground frame structure of assembly of shear force cotter bolt connection inner column
CN111749364B (en) Assembled composite wall based on C-shaped steel and construction method thereof
CN212336419U (en) Assembled composite wall based on steel pipe
CN106978908B (en) Embedded prestress assembly type frame reinforcing structure with shearing mild steel damper
NL2029933B1 (en) Energy dissipating and damping oblique prestressed shear wall structure system suitable for prefabrication
CN111851737A (en) Assembled concrete frame beam column trunk type connecting joint
CN108678164B (en) Connecting beam type assembled building structure
CN202990244U (en) Dual-T shaped composite beam with prestress concrete filled steel tube core bar
CN216195711U (en) Unit prefabricated shear wall with edge being steel-concrete combined component
CN113775050B (en) Assembled flange steel-concrete combined beam column node, structural system and installation method
CN213772892U (en) Semi-penetrating type steel truss bridge