CN103541434B - The complete cross Combined concrete node of assembled - Google Patents

Abstract

The invention provides a kind of complete cross Combined concrete node of assembled, mainly formed by halfpace, precast concrete beam beam lower steel plate and precast concrete beam punching steel plate etc. under halfpace, precast concrete beam on precast concrete column, precast concrete beam column joint cores, precast concrete beam, precast concrete beam, precast concrete beam punching steel plate is all by precast concrete beam column joint cores, and by being welded into groined type, precast concrete beam is mainly divided under halfpace on precast concrete beam, precast concrete beam halfpace and without concrete segment three parts. The features such as effect of the present invention and advantage are that bearing capacity is high, plasticity and good toughness, easy construction, good economical benefit, speed of application is fast. Can adapt to modern project structure to greatly across, towering, heavy duty development with bear the needs of mal-condition, meet the industrialized requirement of Modern Construction Technology.

Description

The complete cross Combined concrete node of assembled

Technical field

The present invention relates to a kind of building structure novel joint, particularly relate to a kind of cross Combined concrete node of full assembled of prefabricated concrete structure.

Background technology

Assembly concrete building refers to that the concrete prefabricated element of producing taking batch production is as main. by the xoncrete structure class building construction of site-assembled mode design-build. The assembly method of member generally has waters after overlapping layers concrete, Bar Anchorage pouring concrete connection etc. behind scene, and reinforcing bar connects ways such as can adopting sleeve grouting connection, welding, mechanical connection and the connection of reserving hole overlap joint. , at the popular prefabricated large plate house of China, due to reasons such as structural integrity is poor, seepage, cracks on floor slab, there are many structural safety and normal hidden danger and defects that use of affecting in the eighties in 20 century, is replaced gradually by cast-in-place concrete structure. But along with the application of current emerging prefabricated concrete structure, particularly introduced in recent years many advanced foreign technologies, localized prefabricated concrete structure is built new technology and is just progressively formed.

Along with the trend of the quickening of China's " building industrialization, housing industrialization " process and the continuous appearance house industrial sector that reduces building trade recruitment famine of China's " demographic dividend " is day by day obvious. The application of prefabricated concrete structure becomes current research focus all parts of the country and continues to bring out out new technology, the new model of residential housing prefabricated concrete structure again. Precast reinforced concrete structure is one of important directions of China building structure development, and it is conducive to the development of China's building industrialization, the saving energy of enhancing productivity, and development Green environmental-protection building, and be conducive to improve and ensure construction engineering quality. Compared with cast-in-situ construction method; assembled reinforced concrete structure is conducive to green construction; because fabricated construction more can meet the requirements such as the saving land of green construction, energy-conservation, material-saving, water saving and environmental protection; reduce the negative effect to environment; comprise reduction noise, prevent airborne dust, reduce environmental pollution, clean transport, reduce place interference, save resource and the energy such as water, electricity, material, follow the principle of sustainable development. And, fabricated construction can complete multiple or whole operations of engineering continuously in order, thereby reduce engineering machinery kind and the quantity of marching into the arena, eliminate resting the time of procedure connection, realize interchange operation, reduce workmen, thereby improve work efficiency, reduction supplies consumption, minimizing environmental pollution, for green construction provides safeguard. In addition, fabricated construction reduces building waste (accounting for the 30%-40% of municipal refuse total amount) largely, as steel scrap muscle, waste iron wire, useless bamboo timber, discarded concrete etc.

Assembly concrete building can be divided into full assembling according to assemblingization degree height and part is assembled two large classes. Full assembling building is generally restricted to low layer or the lower tier building of requirements for fortification against earthquake; Part is assembled concrete construction main member and is generally adopted prefabricated components, connects by cast-in-place concrete at the scene, forms the building of cast in place and precast construction.

North America region is mainly taking America & Canada as main. because prefabricated/prestressed concrete association (PCI) studies for a long period of time and promotes pre-cast building, so the Specification of precast concrete is also very perfect. and its assembly concrete Application in Building is very general. The pre-cast building of North America mainly comprises the large series of building prefabrication exterior wall and structure prefabricated components two, and the common feature of prefabricated components is to maximize to combine with prestressing force. can optimize structure arrangement of reinforcement be connected structure. Reduce and make and installation workload, shorten the Yi work duration, fully demonstrate industrialization, standardization and Technical Economy feature. In 20th century, the pre-cast building of North America is mainly used in the non-area of providing fortification against earthquakes of low layer. Due to the earthquake effect in area, California, pay much attention in recent years the engineering application technical research of antidetonation and precast construction on the middle and senior level. PCI has published " precast concrete Aseismic Design " book recently, systematically analyzed the Aseismic Design problem of pre-cast building from theory and practice angle, sum up the latest scientific research of many precast construction Aseismic Design, to instructing precast construction design and engineering application to there is very strong directive significance.

Europe is the cradle of pre-cast building, the road that has just started building industrialization as far back as the 17th century. After World War II, due to human resources shortage, Europe is research and probe building industrialization pattern further. No matter be economically developed Northern Europe, West Europe, or Eastern Europe underdeveloped, always all in the design and construction mode of actively carrying out prefabrication and assembly construction concrete construction. Accumulate the design and construction experience of many pre-cast buildings, various special precast building systems and standardized general prefabricated product line are formed, and worked out a series of precast concrete engineering specifications and application manual, play very important effect to promoting precast concrete in global application.

Japan and Korea S have used for reference American-European successful experience, on the standardized designs construction basis of exploring pre-cast building. In conjunction with oneself requirement. Obtain breakthrough in precast construction system globality antidetonation and shock insulation design aspect. Representative achievement be the Tokyo Tower that Japan adopts two 58 floor that prefabrication and assembly construction frame structure builds up for 2008. Meanwhile, the precast concrete building system design of Japan, make and the standard criterion of construction also very perfect, the prefabricated specification using at present have " precast concrete engineering } (JASSl0) and " concrete curtain wall) (JASSl4).

China is from the begin one's study design and construction technology of assembly concrete building of five sixties of 20th century, formed a series of assembly concrete building systems, comparatively typical building system has assembled single storey industry workshop building system, assembled multistory frame building system, assembled large panel building system etc. To the eighties in 20th century, the application of assembly concrete building reaches the period of full bloom, many places, the whole nation have all formed the integrated assembly concrete industrialized building of design, making and construction and installation pattern. and the masonry building of assembly concrete building and employing prefabricated hollow floor becomes two kinds of topmost building systems, and application popularization rate reaches more than 70%. Because function and the physical property of assembled architecture exist many limitations and deficiency, the assembly concrete architectural design of China and construction technology R & D Level also do not catch up with the variation of social demand and Building technology development, to the mid-90 in 20th century, assembly concrete building is replaced by full cast-in-place concrete building system gradually, at present except the application extensively of assembled single storey industry workshop building system. The engineering application of other prefabrication systems is few. The globality of precast construction antidetonation and the specialization of management in design and operation research not, cause its Technical Economy poor. It is the basic reason that causes precast construction to stagnate for a long time.

Summary of the invention

The object of the present invention is to provide a kind of complete cross Combined concrete node of assembled, mainly for developing, a kind of good integrity, power transmission are clear and definite, simple structure, safe and reliable, save the fabricated construction node of material and easy construction. Bean column node is as a key link of building structure, by the feasibility that directly determines that a kind of novel architecture structure form is applied in Practical Project. Wherein mode of transfer force and construction technology should be two most important links of design of node, and a kind of good joint form should have good unification in these two links. The present invention is intended to the node structure form of developing a kind of constructability and having good anti-seismic performance.

The present invention is achieved through the following technical solutions;

The complete cross Combined concrete node of assembled is mainly by precast concrete column, precast concrete beam column joint cores and precast concrete beam composition, wherein precast concrete column comprises the vertical muscle of precast concrete column and precast concrete column tie-bar, precast concrete beam comprises halfpace on precast concrete beam, halfpace under precast concrete beam, precast concrete beam beam lower steel plate, precast concrete beam punching steel plate, beams of concrete assembles vertical screw and beams of concrete assembles horizontal screw, it is characterized in that, precast concrete beam punching steel plate is all by precast concrete beam column joint cores, and by being welded into groined type, at the bottom welding precast concrete beam beam lower steel plate of the outside precast concrete beam punching steel plate of precast concrete column, precast concrete beam beam lower steel plate length is the end to precast concrete beam punching steel plate by precast concrete column outside. precast concrete beam is mainly divided under halfpace on precast concrete beam, precast concrete beam halfpace and without concrete segment three parts, on precast concrete beam, the concrete height of halfpace section is identical with precast concrete beam, under precast concrete beam, the concrete height of halfpace is precast concrete beam 1/2nd, on precast concrete beam, halfpace length is 50 ~ 100mm, halfpace and be 100 ~ 150mm without concrete segment length under precast concrete beam, under precast concrete beam, halfpace setting at least two row's beams of concretes assemble vertical screw. precast concrete beam arranges respectively the horizontal screw of beams of concrete assembling, and level two rows are arranged at the horizontal screw of beams of concrete assembling top, and level two rows are arranged at bottom, the horizontal screw of a beams of concrete assembling halfpace and vertical row is at least set respectively without concrete segment under halfpace, precast concrete beam on precast concrete beam.

The features such as effect of the present invention and advantage are that bearing capacity is high, plasticity and good toughness, easy construction, good economical benefit, speed of application is fast. Can adapt to modern project structure to greatly across, towering, heavy duty development with bear the needs of mal-condition, meet the industrialized requirement of Modern Construction Technology.

Brief description of the drawings

Fig. 1 is the cross Combined concrete nodal plane of full assembled schematic diagram;

Fig. 2 is the cross Combined concrete node of full assembled front schematic view;

Fig. 3 is Figure 1A-A generalized section.

In figure, 1 is precast concrete column; 2 is precast concrete beam column joint cores; 3 is precast concrete beam; 4 is halfpace on precast concrete beam; 5 is halfpace under precast concrete beam; 6 is precast concrete beam beam lower steel plate; 7 is the vertical muscle of precast concrete column; 8 is precast concrete column tie-bar; 9 is precast concrete beam punching steel plate; 10 assemble vertical screw for beams of concrete; 11 assemble horizontal screw for beams of concrete.

Detailed description of the invention

Below in conjunction with technical scheme with reference to accompanying drawing, the present invention is described in detail.

The cross Combined concrete node of full assembled that the present invention proposes is as shown in Fig. 1 ~ Fig. 3.

Whole device is mainly made up of precast concrete column 1, precast concrete beam column joint cores 2 and precast concrete beam 3, wherein precast concrete column 1 comprises the vertical muscle 7 of precast concrete column and precast concrete column tie-bar 8, and precast concrete beam 3 comprises on precast concrete beam under halfpace 4, precast concrete beam that halfpace 5, precast concrete beam beam lower steel plate 6, precast concrete beam punching steel plate 9, beams of concrete assemble vertical screw 10 and the horizontal screw 11 of beams of concrete assembling. Precast concrete beam punching steel plate 9 is all by precast concrete beam column joint cores 2, and by being welded into groined type, at the bottom welding precast concrete beam beam lower steel plate 6 of the outside precast concrete beam punching steel plate 9 of precast concrete column 1, beam lower steel plate 6 length of precast concrete beam are the end to precast concrete beam punching steel plate 9 by precast concrete column 1 outside. Precast concrete beam 3 is divided on precast concrete beam under halfpace 4, precast concrete beam halfpace 5 and without concrete segment three parts; On precast concrete beam, the concrete height of 4 sections of halfpaces is identical with precast concrete beam 3; Under precast concrete beam, the concrete height of halfpace 5 is 1/2nd of precast concrete beam 3; On precast concrete beam, halfpace 4 length are 50 ~ 100mm, halfpace 5 and be 100 ~ 150mm without concrete segment length under precast concrete beam; Under precast concrete beam, halfpace 5 arranges at least two row's beams of concretes and assembles vertical screw 10. Precast concrete beam 3 arranges respectively the horizontal screw 11 of beams of concrete assembling, and level two rows are arranged at the horizontal screw of beams of concrete assembling 11 tops, and level two rows are arranged at bottom; The horizontal screw 11 of a beams of concrete assembling halfpace 5 and vertical row is at least set respectively without concrete segment under halfpace 4, precast concrete beam on precast concrete beam. First make precast concrete beam punching steel plate 9, weld as requested, and weld precast concrete beam beam lower steel plate 6. Assembling reinforcement, makes template, builds maintenance.

Claims (3)

1. the cross Combined concrete node of full assembled, it is by precast concrete column (1), precast concrete beam column joint cores (2) and precast concrete beam (3) composition, wherein precast concrete column (1) comprises that precast concrete column indulges muscle (7) and precast concrete column tie-bar (8), precast concrete beam (3) comprises halfpace on precast concrete beam (4), halfpace under precast concrete beam (5), precast concrete beam beam lower steel plate (6), precast concrete beam punching steel plate (9), beams of concrete assembles vertical screw (10) and beams of concrete assembles horizontal screw (11), it is characterized in that, precast concrete beam punching steel plate (9) is all by precast concrete beam column joint cores (2), and by being welded into groined type, at the bottom welding precast concrete beam beam lower steel plate (6) of the outside precast concrete beam punching steel plate (9) of precast concrete column (1), beam lower steel plate (6) length of precast concrete beam is the end to precast concrete beam punching steel plate (9) by precast concrete column (1) outside.

2. the cross Combined concrete node of the full assembled of one according to claim 1, is characterized in that: precast concrete beam (3) is divided under halfpace on precast concrete beam (4), precast concrete beam halfpace (5) and without concrete segment three parts; The concrete height of halfpace on precast concrete beam (4) section is identical with precast concrete beam (3); The concrete height of halfpace under precast concrete beam (5) is 1/2nd of precast concrete beam (3); Halfpace on precast concrete beam (4) length is 50 ~ 100mm, halfpace under precast concrete beam (5) and be 100 ~ 150mm without concrete segment length; Halfpace under precast concrete beam (5) arranges at least two row's beams of concretes and assembles vertical screw (10).

3. the cross Combined concrete node of the full assembled of one according to claim 2, it is characterized in that: precast concrete beam (3) arranges respectively the horizontal screw of beams of concrete assembling (11), beams of concrete assembles horizontal screw (11) top level two rows, and level two rows are arranged at bottom; Beams of concrete assembles horizontal screw (11) halfpace (5) and vertical row is at least set respectively without concrete segment under halfpace (4), precast concrete beam on precast concrete beam.