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Assembly integral type shear wall connecting node, system with same and process for constructing assembly integral type shear wall connecting node

A technology for connecting nodes and construction techniques, applied to walls, building components, buildings, etc., can solve the problems of reduced total thickness of external walls, external formwork of external scaffolding cannot bear the side pressure of pouring concrete self-weight formwork, etc., to reduce construction difficulty , reduce the amount of high-altitude operations on site, and increase the effect of building usable area

Pending Publication Date: 2017-11-03
QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of assembled integral shear wall connection node and its system, which solves the problems that the outer formwork of the existing assembled building shear wall connection node needs to be disassembled, the construction of external scaffolding has risks, and the outer formwork It can’t bear the self-weight of pouring concrete and the side pressure on the formwork during vibration, and can avoid the outer panel so that the total thickness of the outer wall is greatly reduced, effectively increasing the indoor use area, energy saving and environmental protection

Method used

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  • Assembly integral type shear wall connecting node, system with same and process for constructing assembly integral type shear wall connecting node
  • Assembly integral type shear wall connecting node, system with same and process for constructing assembly integral type shear wall connecting node
  • Assembly integral type shear wall connecting node, system with same and process for constructing assembly integral type shear wall connecting node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101]The anti-cracking mortar is made up of the following components in parts by weight: 30 parts of modified zeolite, 60 parts of Portland cement, 5 parts of sodium tetrapropylene benzene sulfonate, 5 parts of cocoate diethanolamine, 10 parts of aluminum chloride powder, 5 parts of latex powder, 5 parts of quicklime, 1 part of methacrylate, and 100 parts of water. The modified zeolite is ground and pulverized to 80-120 mesh, and then mixed with 30% concentration of acetic acid Soaked in the solution for 1 hour, soaked in oleic acid and then dried. Add modified zeolite, Portland cement, aluminum chloride powder, latex powder, quicklime powder, methacrylate, and water together into the reaction kettle and stir and mix, heat to 50°C and keep it for 1-2 hours to obtain anti-cracking mortar.

[0102] Below is the mechanical performance test and the result thereof about this anti-cracking mortar provided by the inventor:

[0103] (1) Use a standard test mold of 70mm×70mm×70mm to...

Embodiment 2

[0109] According to "Building Construction Formwork Safety Technical Regulations" JGJ162-2014, the standard value of the lateral pressure of the external formwork is:

[0110] f 1 =0.22γ c t 0 beta 1 beta 2 V 1 / 2

[0111] f 2 =γ c h

[0112] gamma c It is the bulk density of newly poured concrete, according to 24KN / m 3 calculate;

[0113] t 0 is the initial setting time of newly poured concrete, t 0 =200 / (T+15)=200 / (25+15)=5;

[0114] beta 1 Regardless of adding retarder, take 1.2;

[0115] beta 2 Slump influence correction factor, take 0.8;

[0116] V is the concrete pouring speed, the storey height is 3 meters, take V=3;

[0117] f 1 =0.22×24×5×1.2×0.85×3 1 / 2 =46.6 KN / m 2 ;

[0118] f 2 =24×3=72 KN / m 2 ;

[0119] Take the smaller value of the two: F=46.6 KN / m 2 (dead load);

[0120] Standard value of vibration load: take 4KN / m 2 (live load);

[0121] Standard value of dumping load: take 2KN / m 2 (live load);

[0122] Constant load control, comb...

Embodiment 3

[0124] Strength check:

[0125] Calculation conditions: the thickness of the external formwork of the cement-based exterior wall is 20mm, the vertical spacing of the pull bolts is 300mm, and the horizontal spacing is 250mm;

[0126] M / W≤f, f takes 25MPa;

[0127] Take the larger value of the bending moment in the X and Y directions, and the maximum value is -1.22KN m / m;

[0128] The calculation width is taken as b, and the plate thickness t=20mm;

[0129] Then: M=-1.22×10 3 b (unit: N / mm)

[0130] W=(bt 2 ) / 6=66.7b (unit: mm 3 )

[0131] M / W=18.29MPa<25MPa

[0132] From the above results, it can be seen that the compressive performance of the STP thermal insulation integrated non-dismantling formwork of the present invention far exceeds that of existing products on the market, and can effectively resist the lateral pressure generated by newly poured concrete, the load of construction and equipment, the load generated by vibrating concrete, and All construction operatio...

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Abstract

The invention belongs to a technical system of an advanced assembly integral type shear wall structure, and relates to an assembly integral type shear wall connecting node which comprises prefabricated wallboards and a cast-in-situ region. The assembly integral type shear wall connecting node is characterized by further comprising an STP (standard temperature and pressure) heat-insulation integrated disassembly-free formwork; the corresponding prefabricated wallboards, the STP heat-insulation integrated disassembly-free formwork and the corresponding prefabricated wallboards are sequentially connected with one another to form the cast-in-situ region in an enclosed manner, and the cast-in-situ region comprises cast-in-situ region reinforcing steel bars and cast-in-situ region concrete. The invention further discloses a process for constructing the assembly integral type shear wall connecting node and a system with the assembly integral type shear wall connecting node. The assembly integral type shear wall connecting node, the process and the system have the advantages that large quantities of formworks and concrete wet operation in the traditional construction modes, field wet operation on heat-insulation layers and facing layers of exterior walls and outer scaffolds in building construction procedures are omitted, accordingly, construction waste can be reduced to a great extent, the construction periods can be shortened, and the comprehensive cost can be saved; the total thicknesses of the exterior walls can be reduced to a great extent, and accordingly the indoor usable areas can be increased.

Description

technical field [0001] The invention relates to the technical field of prefabricated buildings, in particular to an assembled integral shear wall connection node and its system and construction technology. Background technique [0002] Prefabricated buildings refer to buildings assembled on site with prefabricated components. The advantage of this kind of building is that the construction speed is fast, it is less restricted by climatic conditions, it saves labor and can improve the construction quality. Assembled architecture began to arouse people's interest in the beginning of the 20th century, and finally realized to the sixties. Britain, France, the Soviet Union and other countries first made attempts. Because the construction speed of prefabricated building is fast, and production cost is relatively low, it is promoted all over the world rapidly. The prefabricated building has the following five characteristics: 1) A large number of building parts are produced and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/56
CPCE04B2/56
Inventor 翟传伟张希廷李壮贤沈建军刘静
Owner QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL