CN206189730U - Hook bolted connection node of whole afebril bridge plate wall of assembled concrete - Google Patents

Abstract

The utility model provides a hook bolt connection node of an assembled concrete integral heat-free bridge slab wall. Each outer column of the integral heat-free bridge slab wall is provided with a hook bolt connecting piece, and each hook bolt Both ends of the connecting piece are bolts, and two connecting collars are set on each overlapping tooth of the toothed floor slab. The bolts at both ends of the hooking bolt connecting piece penetrate into the connecting collar and are tightened with nuts; the whole has no thermal bridge wall It forms a contour plane with the top surface of the tooth-shaped floor slab, and the inner row of hidden columns is consistent with the bottom plane of the tooth-shaped floor slab. The beneficial effect of the utility model is that the overall synergistic performance of the wall is good, the energy saving is high, the overall heat bridge-free technology and the reinforced concealed column system are adopted, the heat bridge is effectively cut off, and the heat preservation performance is good; the seismic performance is significantly improved, and the connection is greatly reduced. The number of pieces is reduced, the construction is simplified, the industrialization efficiency is significantly improved, and the consumption of resources and energy is reduced. In addition, the invention is suitable for dry work and full assembly of precast concrete structures.

Description

A hook bolt connection node of prefabricated concrete integral thermal bridge slab wall

technical field

The utility model relates to a building energy-saving wall body, in particular to a hook bolt connection node of an assembled concrete integral heat-free bridge slab wall adopted by an energy-saving building.

Background technique

Prefabricated concrete buildings refer to prefabricated concrete components produced in factories. Concrete structure housing buildings designed and constructed through on-site assembly. The assembly methods of components generally include on-site post-cast laminated concrete, steel bar anchored post-cast concrete connection, etc.; steel bar connection can be made by sleeve grouting connection, welding, mechanical connection and lap connection of reserved holes. In the 1980s, prefabricated prefabricated large-slab houses, which were popular in my country, had many hidden dangers and defects that affected structural safety and normal use due to poor structural integrity, leakage, and floor cracks, and were gradually replaced by cast-in-place concrete structures. . However, with the current emerging application of prefabricated concrete structures, especially the introduction of many foreign advanced technologies in recent years, localized new technologies for the construction of prefabricated concrete structures are gradually forming.

With the acceleration of the process of "construction industrialization and housing industrialization" in China, and the continuous reduction of China's "demographic dividend", the labor shortage in the construction industry has emerged, and the trend of housing industrialization has become increasingly obvious. The application of prefabricated concrete structures has become a current research hotspot again. New technologies and new forms of prefabricated concrete structures for residential buildings are emerging all over the country. Prefabricated reinforced concrete structure is one of the important directions for the development of my country's building structure. It is conducive to the development of my country's building industrialization, improving production efficiency and saving energy, developing green and environmentally friendly buildings, and is conducive to improving and ensuring the quality of construction projects. Compared with the cast-in-place construction method, the prefabricated RC structure is conducive to green construction, because the prefabricated construction can better meet the requirements of green construction, such as land saving, energy saving, material saving, water saving and environmental protection, and reduce the negative impact on the environment. Including reducing noise, preventing dust, reducing environmental pollution, clean transportation, reducing site disturbance, saving water, electricity, materials and other resources and energy, and following the principles of sustainable development. Moreover, the prefabricated structure can continuously complete multiple or all processes of the project in sequence, thereby reducing the types and quantities of construction machinery entering the site, eliminating the idle time between processes, realizing three-dimensional cross operations, reducing the number of construction personnel, and improving Improve work efficiency, reduce material consumption, reduce environmental pollution, and provide guarantee for green construction. In addition, the prefabricated structure can reduce construction waste to a large extent (accounting for about 30%-40% of the total urban waste), such as waste steel bars, waste iron wires, waste bamboo wood, waste concrete, etc.

Prefabricated concrete buildings can be divided into two categories: full assembly and partial assembly according to the degree of assembly. Fully assembled buildings are generally limited to low-rise or multi-storey buildings with low seismic fortification requirements; the main components of partially assembled concrete buildings are generally prefabricated components, which are connected by cast-in-place concrete on site to form a building with an assembled monolithic structure.

North America is mainly dominated by the United States and Canada. Due to the long-term research and promotion of precast buildings by the Precast/Prestressed Concrete Association (PCI), the relevant standards and specifications for precast concrete are also very complete. Therefore, its prefabricated concrete building application is very common. Prefabricated buildings in North America mainly include two series of building prefabricated exterior walls and structural prefabricated components. The common feature of prefabricated components is the combination of large-scale and prestress. Structural reinforcement and connection construction can be optimized. Reduce the workload of production and installation, shorten the construction period, and fully reflect the characteristics of industrialization, standardization and technical economy. In the 20th century, prefabricated buildings in North America were mainly used in low-rise non-seismic fortified areas. Due to the impact of earthquakes in the California area, in recent years, great attention has been paid to the research on engineering application technology of earthquake resistance and mid-high-rise prefabricated structures. PCI recently published the book "Seismic Design of Prefabricated Concrete Structures", which systematically analyzes the seismic design of prefabricated buildings from the perspective of theory and practice, and summarizes the latest scientific research achievements in the seismic design of prefabricated structures. Promotion has a strong guiding significance.

Europe is the birthplace of prefabricated buildings, and the road to industrialization of buildings began as early as the 17th century. After the Second World War, due to the shortage of labor resources, Europe further studied and explored the industrialization model of construction. Whether it is economically developed Northern Europe, Western Europe, or economically underdeveloped Eastern Europe, they have been actively promoting the design and construction of prefabricated concrete buildings. Accumulated a lot of experience in the design and construction of prefabricated buildings, formed various special prefabricated building systems and standardized general prefabricated product series, and compiled a series of precast concrete engineering standards and application manuals, which played a role in promoting the application of precast concrete in the world very important role.

Japan and South Korea have learned from the successful experience of Europe and the United States, on the basis of exploring the standardized design and construction of prefabricated buildings. Combined with their own requirements. Breakthroughs have been made in the integral seismic and isolation design of prefabricated structural systems. Representative achievements are the two 58-story Tokyo Towers built in Japan in 2008 using prefabricated frame structures. At the same time, the standard specifications for the design, production and construction of precast concrete building systems in Japan are also very complete. The prefabricated specifications currently in use include "Precast Concrete Engineering" (JASSl0) and "Concrete Curtain Wall) (JASSl4).

my country began to study the design and construction technology of prefabricated concrete buildings in the 1950s and 1960s, and formed a series of prefabricated concrete building systems. The more typical building systems include prefabricated single-storey industrial plant building systems and prefabricated multi-storey frame buildings. system, prefabricated slab building system, etc. By the 1980s, the application of prefabricated concrete buildings reached its heyday, and many parts of the country have formed a prefabricated concrete industrialized building model integrating design, production, construction and installation. Prefabricated concrete buildings and masonry buildings with prefabricated hollow-core slabs have become the two most important building systems, with an application penetration rate of over 70%. Due to the many limitations and deficiencies in the functions and physical properties of prefabricated buildings, my country's prefabricated concrete building design and construction technology research and development level cannot keep up with social needs and changes in the development of construction technology. By the mid-1990s, prefabricated concrete buildings had been gradually replaced by all-cast-in-place concrete building systems. At present, except for prefabricated single-storey industrial plant building systems, other prefabricated building systems are rarely used in engineering applications. The prefabricated structure's anti-seismic integrity and professional research on design and construction management are not enough, the number of connectors is large, and high energy consumption results in poor technical and economical efficiency. It is the root cause of the long-term stagnation of prefabricated structures.

Contents of the invention

In view of the above problems, the utility model provides a hook bolt connection node of an assembled concrete integral non-thermal bridge slab wall.

The technical solution adopted by the utility model is: a hook bolt connection node of an assembled concrete integral thermal bridge slab wall, including two parts of the integral thermal thermal bridge slab wall and the toothed floor slab;

The overall heat-free bridge slab wall includes an inner edge concrete layer, an outer edge concrete layer, a concrete middle rib, an inner row of hidden columns, an outer row of hidden columns, an inner row of thermal insulation boards, an outer row of thermal insulation boards, an inner row of connecting steel bars, and an outer row of hidden columns. Rows of connecting steel bars, step openings, waterproof step openings, top surface of slab-bottom stepped walls, top surface of slab-top stepped walls, inner row of externally extending concealed columns, and wall bottom surface; the walls from front to back are the inner edge concrete layer, inner row insulation Slabs, concrete ribs, step openings, outer row insulation boards, waterproof step openings and outer concrete layer; inner row insulation boards and outer row insulation boards are arranged at intervals of 100-200mm in width, and inner row darkening boards are inserted at intervals Columns and outer row of hidden columns; hook bolt connectors are hung on the outer row of hidden columns, and the two ends of the hook bolt connectors are bolts; inner row of hidden columns and outer row of hidden columns are respectively embedded with inner row of connecting steel bars and outer row of connectors rebar.

The toothed floor slab includes a board body, overlapping teeth, reserved openings for the hidden pillars passing through the board and connecting collars; A connection collar.

As a preferred technical solution: a hook bolt connection node of the prefabricated concrete integral non-thermal bridge slab wall, the reserved opening of the hidden column passing through the upper part of the tooth-shaped floor slab corresponds to and fits the inner row of hidden columns one by one , the inner row of hidden columns embedded with the inner row of connecting steel bars are exposed; the overlapping teeth of the toothed floor slab are overlapped with the wall between the inner row of hidden columns of the overall non-thermal bridge slab wall; the bolts at both ends of the hook bolt connector Pass through the connecting collar and tighten with nuts; the overall non-thermal bridge slab wall and the top surface of the toothed floor slab form a contour plane as a whole, and the inner row of concealed columns is consistent with the bottom plane of the toothed floor slab.

As a preferred technical solution: a hook-and-bolt connection node of a prefabricated concrete integral non-thermal bridge slab wall, the thickness of the inner and outer concrete layers and the concrete middle rib is equal.

As a preferred technical solution: a hook bolt connection node of the prefabricated concrete integral non-thermal bridge slab wall, the inner row of hidden columns and the outer row of hidden columns are interlaced, and the inner row of hidden columns and the outer row of thermal insulation boards The middle part is corresponding, and the outer row of hidden columns is corresponding to the middle part of the inner row of insulation boards.

As a preferred technical solution: a hook bolt connection node of a prefabricated concrete integral thermal-free bridge slab wall, the step opening is located at the center line of the overall thermal-free bridge slab wall, the outer side is higher than the inner side, and the height difference is tooth-shaped The thickness of the floor is 100-200mm.

As a preferred technical solution: a hook bolt connection node of a prefabricated concrete integral heat-free bridge slab wall, the corresponding positions of the inner row of connecting steel bars and the outer row of connecting steel bars are respectively provided with an inner row of connecting steel bar interfaces and an outer row of connecting steel bars Connecting steel bar interface; the protruding length of the inner row of connecting steel bars and the outer row of connecting steel bars is equal to 200-500mm; the protruding length of the inner row of concealed columns is equal to the thickness of the toothed floor.

As a preferred technical solution: a hook bolt connection node of a prefabricated concrete integral non-thermal bridge slab wall, the end of the lap tooth is 30-60mm away from the edge of the slab, and the distance between the lap tooth and the step mouth is 10-20mm , the overhanging length of the overlapping teeth is 20mm smaller than the width of the top surface of the corresponding slab bottom ladder wall; the length of each side of the reserved opening of the pass-through concealed column is 2-7mm longer than that of the section of the inner row and outwardly extending concealed column.

As a preferred technical solution: a hook-bolt connection node of a prefabricated concrete integral thermal bridge slab wall, the connecting collar corresponds to the bolts at both ends of the hook-bolt connection, and the stressed steel bars or distributed The steel bar is used as the anchoring part in the plate connecting the collar, and the ring-shaped top protrudes from the overlapping teeth, and the protruding length is 15-20mm.

As a preferred technical solution: a hook bolt connection node of the prefabricated concrete integral thermal bridge slab wall, the hook bolt connection parts are horizontal inside the prefabricated concrete, and the two ends are vertical after extending out of the step opening. The vertical ribs are all bolts.

The beneficial effect of the utility model is that: adopting a hook bolt connection node of the prefabricated concrete integral non-thermal bridge slab wall mainly solves the overall synergistic performance of the prefabricated concrete sandwich wall, so that the overall synergistic performance of the wall is good and energy saving High performance; the overall no-thermal-bridge technology and enhanced concealed column system can effectively cut off the thermal bridge and have good thermal insulation performance; significantly improve the seismic performance, greatly reduce the number of connectors, simplify construction, significantly improve its industrialization efficiency, and reduce Resource and energy consumption; In addition, this connection method is suitable for dry work and full assembly of precast concrete structures.

Description of drawings

Fig. 1 is a schematic diagram of the hook bolt connection method of the glyph assembled concrete integral heat-free bridge plate wall;

Figure 2 is a schematic plan view of the prefabricated concrete integral athermal bridge slab wall;

Figure 3 is a schematic diagram of the facade of the prefabricated concrete integral athermal bridge slab wall;

Figure 4 is a schematic diagram of the assembled concrete overall athermal bridge slab wall looking up;

Fig. 5 is a schematic plan view of a toothed floor;

In the figure: 1 overall non-thermal bridge slab wall, 2 toothed floor slabs, 11 is the inner edge concrete layer, 12 is the outer edge concrete layer, 13 is the concrete middle rib, 14 is the inner row of hidden columns, 15 is the outer row of hidden columns, 16 is the inner row of insulation boards, 17 is the outer row of insulation boards, 18 is the inner row of connecting steel bars, 19 is the outer row of connecting steel bars, 110 is the ladder mouth, 111 is the top surface of the bottom ladder wall, and 112 is the top surface of the board top ladder wall , 113 is the inner row of hidden columns extending outward, 114 is the bottom of the wall, 115 is the waterproof step opening, 116 is the interface of the inner row of steel bars, 117 is the interface of the outer row of steel bars, 21 is the board body, 22 is the overlapping teeth, and 23 is the overpass Board concealed column reserved opening, 24 are hook bolt connectors.

detailed description

In order to better explain the purpose and advantages of the utility model, the utility model will be further described in conjunction with the accompanying drawings.

A hook bolt connection node of a prefabricated concrete integral heat-free bridge slab wall, including two parts: the integral heat-free bridge slab wall 1 and the toothed floor 2;

A hook bolt connection node of a prefabricated concrete integral heat-free bridge slab wall, including two parts: an integral heat-free bridge plate wall and a toothed floor slab;

The overall heat-free bridge slab wall includes an inner edge concrete layer, an outer edge concrete layer, a concrete middle rib, an inner row of hidden columns, an outer row of hidden columns, an inner row of thermal insulation boards, an outer row of thermal insulation boards, an inner row of connecting steel bars, and an outer row of hidden columns. Rows of connecting steel bars, step openings, waterproof step openings, top surface of slab-bottom stepped walls, top surface of slab-top stepped walls, inner row of externally extending concealed columns, and wall bottom surface; the walls from front to back are the inner edge concrete layer, inner row insulation Slabs, concrete ribs, step openings, outer row insulation boards, waterproof step openings and outer concrete layer; inner row insulation boards and outer row insulation boards are arranged at intervals of 100-200mm in width, and inner row darkening boards are inserted at intervals Columns and outer row of hidden columns; hook bolt connectors are hung on the outer row of hidden columns, and the two ends of the hook bolt connectors are bolts; inner row of hidden columns and outer row of hidden columns are respectively embedded with inner row of connecting steel bars and outer row of connectors Rebar;

The toothed floor slab includes a board body, overlapping teeth, reserved openings for the hidden pillars passing through the board and connecting collars; A connection collar.

The hook bolt connection node of the prefabricated concrete integral heat-free bridge slab wall, the reserved opening of the hidden column passing through the upper part of the tooth-shaped floor slab corresponds to and fits with the inner row of hidden columns one by one, and the inner row of hidden columns is embedded. The inner row of concealed columns connecting the steel bars are exposed; the overlapping teeth of the toothed floor slab are overlapped with the wall between the inner row of concealed columns of the overall heat-free bridge slab wall; the bolts at both ends of the hook bolt connector pass through the connecting collar And tighten it with nuts; the overall non-thermal bridge slab wall and the top surface of the toothed floor slab form a contour plane as a whole, and the inner row of hidden columns is consistent with the bottom plane of the toothed floor slab.

The hook bolt connection node of the prefabricated concrete integral heat-free bridge slab wall has the same thickness of the inner edge concrete layer, outer edge concrete layer and concrete middle rib.

The hooking bolt connection node of the prefabricated concrete integral heat-free bridge slab wall, the inner row of hidden columns and the outer row of hidden columns are interlaced, the inner row of hidden columns corresponds to the middle part of the outer row of thermal insulation boards, and the outer row of hidden columns corresponds to the middle part of the outer row of insulation boards. Row of hidden columns corresponds to the middle part of the inner row of insulation boards.

The hook bolt connection node of the prefabricated concrete integral thermal-free bridge slab wall, its step opening is located at the center line of the integral thermal-free bridge slab wall, the outer side is higher than the inner side, and the height difference is 100-100- 200mm.

The hooking bolt connection node of the prefabricated concrete integral heat-free bridge slab wall, the corresponding positions of the inner row of connecting steel bars and the outer row of connecting steel bars are respectively provided with an inner row of connecting steel bar interface and an outer row of connecting steel bar interface; The protruding length of the row of connecting steel bars and the outer row of connecting steel bars is equal to 200-500mm; the protruding length of the inner row of concealed columns is equal to the thickness of the toothed floor slab.

The hook bolt connection node of the prefabricated concrete integral thermal bridge slab wall, the end of the lapping tooth is 30-60mm away from the edge of the plate body, the distance between the lapping tooth and the step mouth is 10-20mm, and the distance between the lapping tooth The extension length is 20mm smaller than the width of the top surface of the corresponding slab bottom ladder wall; the side lengths of the reserved openings of the hidden columns passing through the slab are 2-7mm longer than the sides of the cross-section of the inner row and outer extension hidden columns.

The hook bolt connection node of the prefabricated concrete integral heat-free bridge slab wall has a one-to-one correspondence between the connecting collar and the bolts at both ends of the hook bolt connector, and the stressed steel bar or distributed steel bar can be used as the connecting collar In the anchoring part of the plate, the ring-shaped top protrudes from the overlapping teeth, and the protruding length is 15-20mm.

The hooking bolt connection node of the prefabricated concrete integral heat-free bridge slab wall, the hooking bolt connection part is horizontal inside the prefabricated concrete, and the two ends are vertical after protruding from the step opening, and the vertical ribs are evenly spaced. for the bolt.

Finally, it should be noted that the above embodiments are only used for supplementary illustration of the technical solutions of the present utility model rather than limitation. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not depart from the spirit and scope of the technical solution of the utility model, and all should cover In the scope of the claims of the present utility model.

Claims (6)

1. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete, it is characterised in that：Including overall nothing Heat bridge board wall（1）With dentation floor（2）Two parts；Described is overall without heat bridge board wall（1）Including inner edge concrete layer（11）, it is outer Edge concrete layer（12）, concrete middle rib（13）, interior row's sleeper（14）, outer row's sleeper（15）, interior row's warming plate（16）, outer row protects Warm plate (17), interior row connection reinforcing bar（18）, outer row connection reinforcing bar（19）, ladder mouthful（110）, waterproof ladder mouthful（115）, plate bottom rank Terraced wall top surface（111）, plate top ladder wall top surface（112）, interior exclusive stretch sleeper（113）And wall bottom surface（114）；Wall by preceding to After be followed successively by inner edge concrete layer（11）, interior row's warming plate（16）, concrete middle rib（13）, ladder mouthful（110）, outer row's warming plate （17）, waterproof ladder mouthful（115）With outer rim concrete layer（12）；Interior row's warming plate（16）With outer row's warming plate（17）According to 100-200mm width intervals are arranged, and interval is inserted with interior row's sleeper respectively（14）With outer row's sleeper（15）；Outer row's sleeper（15）On Hang with hook bolt connection piece（118）, hook bolt connection piece（118）Two ends are bolt；Interior row's sleeper（14）With outer row's sleeper （15）In be respectively embedded into interior row connection reinforcing bar（18）Reinforcing bar is connected with outer row（19）；

Described dentation floor（2）Including plate body（21）, overlap joint tooth（22）, cross plate sleeper reserved opening（23）With the connection collar （24）；Plate body（21）Upper end overlaps tooth（22）With plate sleeper reserved opening excessively（23）Distribute alternately, overlap tooth（22）It is provided with two The connection collar（24）；

Plate sleeper reserved opening (23) of crossing of described dentation floor (2) upper end is corresponded and chimeric with interior row's sleeper (14), embedding The interior row's sleeper (14) for having interior row's connection reinforcing bar (18) is exposed；The overlap joint tooth (22) of dentation floor (2) is with overall without heat bridge board wall (1) the wall between interior row's sleeper (14) is mutually overlapped；Hook bolt connection piece（118）The bolt at two ends passes through the connection collar （24）And use nut screwing clamping；The overall top surface without heat bridge board wall (1) and dentation floor (2) is integrally formed contour plane, and interior row is dark Post (14) is consistent with dentation floor (2) plate baseplane；

The described connection collar (24) is corresponded with the bolt for hooking bolt connection piece (118) two ends, using steel bar stress or Distribution bar stretches out overlap joint tooth (22) as anchoring position in the plate of the connection collar (24), ringed tip, and extension elongation is 15- 20mm；

Described hook bolt connection piece (118) is level inside precast concrete, and it is afterwards perpendicular that ladder mouthful (110) is stretched out at two ends Directly, vertical bar position is bolt.

2. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete according to claim 1, its It is characterised by：Inner edge concrete layer（11）, outer rim concrete layer（12）With concrete middle rib（13）Thickness it is equal.

3. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete according to claim 1, its It is characterised by：Interior row's sleeper（14）With outer row's sleeper（15）Into alternateing, interior row's sleeper (14) and outer row's warming plate (17) Middle part is corresponding, and outer row's sleeper (15) is corresponding with the middle part of interior row's warming plate (16).

4. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete according to claim 1, its It is characterised by：Ladder mouthful（110）Positioned at entirety without heat bridge board wall（1）Midline position, outside be higher than inner side, difference in height is dentation Floor（2）Thickness 100-200mm.

5. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete according to claim 1, its It is characterised by：Interior row connects reinforcing bar（18）Reinforcing bar is connected with outer row（19）Opposite position is respectively equipped with interior row's connection reinforcing bar interface （116）Reinforcing bar interface is connected with outer row（117）；Interior row connects reinforcing bar（18）Reinforcing bar is connected with outer row（19）The length phase stretched out Deng being 200-500mm；Interior row's sleeper（14）Overhanging length and dentation floor（2）Thickness it is equal.

6. the overall hook bolt connection node without heat bridge board wall of a kind of assembly concrete according to claim 2, its It is characterised by：Overlap joint tooth（22）End is away from plate body（21）Edge 30-60mm, overlaps tooth（22）With ladder mouthful（110）At a distance of 10- 20mm, overlaps tooth（22）Extension than corresponding plate bottom ladder wall top surface（111）The small 20mm of width；Plate sleeper is crossed to reserve Mouthful（23）It is exclusive in each side ratio to stretch sleeper（113）The big 2-7mm of each length of side in section.