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Study on the Influence of Embedded Precast Concrete Wallboard on the Stiffness of Assembled Shear Wall Structure LIANG Xiong-wei, GONG Chen, CAO Jing-yuan, LU De-hui, CHEN Yong-qiang GUABFZHOU ARCHITECTURE    2020, 48 (4): 31-34.   Abstract （572）      PDF（pc） （457KB）（549）       Knowledge map    Save In order to clarify the mechanism and influence of the additional stiffness of the embedded precast concrete wallboard to the assembled shear wall structure, 26 schemes were established for analysis. The results show that the embedded wallboard with exposing steel bars on three sides will significantly increase the lateral stiffness of the assembled shear wall structure, and its mechanism is similar to that of the filler wall. The additional stiffness of the wallboard is mainly determined by its size. The longer the horizontal length of the wallboard is, the greater the additional stiffness is. The increase rate of the additional stiffness with the increase of the horizontal length of the wallboard is nonlinear. The spacing and diameter of the steel bars are not the main factors to affect the additional stiffness. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 40-44.   Abstract （141）      PDF（pc） （432KB）（546）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 3-7.   Abstract （250）      PDF（pc） （375KB）（448）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 6-8.   Abstract （248）      PDF（pc） （417KB）（436）       Knowledge map    Save Related Articles | Metrics

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Research on Reinforcement Technology of Cantilever Structure of Special-shaped Piers of Bridges HU Ji-sheng, LI Pei-hong, ZHENG Xin GUABFZHOU ARCHITECTURE    2020, 48 (4): 21-26.   Abstract （133）      PDF（pc） （530KB）（430）       Knowledge map    Save Cracking of pier is one of the common diseases in bridge engineering. The paper proposes a method for strengthening bridge cantilever structure regarding to cracking problem of cantilever structure for special-shaped pier. The paper mainly analyzes the cracking phenomenon of special-shaped pier and proposes an analysis method based on the finite element reinforcement simulation. According to the results of the finite element analysis, it proposes a reinforcement construction method by increasing the reinforcing steel bars on the pier cantilever structure, pouring the top surface of cantilever structure, thickening of side-range concrete and embedding prestressed tendon. The results show that the method of reinforcing steel bars, strengthening concrete, and embedding prestressed tendon in the cracked area can effectively solve the problem of cracking of the cantilevered structure of the pier of the special-shaped bridge. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 40-43.   Abstract （129）      PDF（pc） （312KB）（428）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 20-26.   Abstract （196）      PDF（pc） （880KB）（417）       Knowledge map    Save Related Articles | Metrics

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Research on the Promotion and Application of Self-balanced Loading Test in Guangdong Province LIN Ze-geng, WANG Xiao-wei GUABFZHOU ARCHITECTURE    2020, 48 (4): 1-6.   Abstract （188）      PDF（pc） （394KB）（404）    PDF（mobile） （394KB）（10）    Knowledge map    Save The self-balanced loading test method has the advantages of strong field adaptability, simplicity, high efficiency and safety. Due to the large number of deep foundation pits, tight construction period and large tonnage of test piles in Guangdong, the self-balanced loading test method has been fully developed and applied in Guangdong. Several typical engineering examples of the self-balanced loading test method were introduced in detail, the application of this method in vertical compression/withdrawal static load test on piles, rock foundation load test on pile bottom bearing layer, deep plate loading test were briefly summarized, and the following conclusions were obtained through comparative analysis: The pile body concrete at the test pile load box is directly affected by the rational design of the load box. All excessively long hole-forming time, excessively thick mud skin, and excessively high pull-out coefficient may cause the actual measured value of the upper friction resistance of the cast-in-place pile to be lower than the theoretical calculated value. The extubation time and extubation speed should be controlled, and effective hole cleaning should be performed according to the specifications. When determining the pull-out coefficient, it is necessary to take values based on local experience or the field test results of the test pile. Related Articles | Metrics

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A Brief Talk on the Design of Cultural Tourism——Take Zhuhai Chimelong Ocean Kingdom's marine Wonder Building as an example HU Shi-qiang GUABFZHOU ARCHITECTURE    2020, 48 (4): 27-30.   Abstract （293）      PDF（pc） （412KB）（399）       Knowledge map    Save Related Articles | Metrics

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Parameters of Clean Air Conditioning System for Intelligent Anti-epidemic Channel Device ZENG Xian-xiang GUABFZHOU ARCHITECTURE    2020, 48 (4): 12-15.   Abstract （119）      PDF（pc） （226KB）（398）       Knowledge map    Save To clarify whether the “intelligent epidemic prevention channel device” of the clean air-conditioning system can meet the requirements of preventing new coronavirus and reducing the spread of virus. According to the relevant specification requirements, the on-site testing method is used to detect the parameters of the device such as wind speed, cleanliness, particle concentration at exhaust outlet, noise, average illuminance, and grounding resistance. The research results show that the particle purification effect and safety performance of the device meet the requirements, but the use comfort effect is flawed. Combined with the actual application and the development of epidemic situation, the paper proposes a plan to improve the equipment which provide ideas and basis for the development and improvement of anti-epidemic equipment. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 35-39.   Abstract （151）      PDF（pc） （595KB）（389）       Knowledge map    Save Related Articles | Metrics

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Application of Remote Wireless Static Level Monitoring System in Health Monitoring of Urban Overpass JIANG Guo-wen GUABFZHOU ARCHITECTURE    2020, 48 (4): 7-11.   Abstract （230）      PDF（pc） （451KB）（385）       Knowledge map    Save In order to solve the shortcomings such as difficult construction, untimely data feedback, poor automation performance, and slow construction speed of the current static leveling instrument in bridge deformation monitoring, a remote wireless static level monitoring system is proposed to automatically monitor the bridge. The paper focuses on the design of hardware equipment in the remote wireless static level monitoring system, so as to improve the convenience of the construction, installation and commissioning of the remote wireless static level monitoring system on the project site. By analyzing the monitoring data of an overpass, it can be shown that the remote wireless static level monitoring system proposed in the paper has the characteristics of strong stability and so on, and has practical value in the field of bridge deformation monitoring. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 1-5.   Abstract （105）      PDF（pc） （341KB）（384）       Knowledge map    Save Table and Figures | Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 49-53.   Abstract （93）      PDF（pc） （472KB）（383）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 45-48.   Abstract （161）      PDF（pc） （248KB）（377）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 44-48.   Abstract （102）      PDF（pc） （592KB）（367）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 9-14.   Abstract （117）      PDF（pc） （394KB）（364）       Knowledge map    Save Related Articles | Metrics

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Construction Quality Control Technology of Continuous Beam Side Span Transition Pier ZHANG Di, ZOU De-xin GUABFZHOU ARCHITECTURE    2020, 48 (4): 40-43.   Abstract （117）      PDF（pc） （323KB）（361）       Knowledge map    Save During the cast-in-situ construction of the main girder section at the transition pier of a continuous steel bridge, the eccentric force of the cantilever of the cast-in-situ beam section on the pier body will cause verticality deviation of the pier and axis offset of the pier cap. In order to meet the requirements for stress, verticality and axis deviation in the construction quality of bridge piers and pier caps in the specification, the project has implemented four measures: design triangular brackets for transition piers, perform checking calculation on the force of the brackets, reversed pull the brackets, and balance partial bending moment of box girder to pier. So that the verticality and axis deviation of the bridge pier and pier cap are within the allowable range, further to ensuring the construction quality of the transition pier. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 54-56.   Abstract （79）      PDF（pc） （345KB）（359）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 40-44.   Abstract （66）      PDF（pc） （652KB）（357）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 1-5.   Abstract （66）      PDF（pc） （520KB）（354）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 10-14.   Abstract （62）      PDF（pc） （793KB）（354）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 13-18.   Abstract （100）      PDF（pc） （623KB）（335）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 23-29.   Abstract （83）      PDF（pc） （697KB）（334）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 8-12.   Abstract （108）      PDF（pc） （390KB）（330）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 36-39.   Abstract （93）      PDF（pc） （455KB）（321）       Knowledge map    Save Related Articles | Metrics

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The Application of Single-hole Seismic Wave Method in the Assessment of the Working Status of Existing Bridge Foundation Piles GUABFZHOU ARCHITECTURE    2020, 48 (5): 8-.   Abstract （118）            Knowledge map    Save In this paper, the application of single-hole seismic wave in the detection of existing bridge foundation piles is studied through the case study of ShangBu bridge (old bridge) in Guangzhou.The application results show that the three pile lengths of No. 2 bridge piers in ShangBu bridge meet the original design requirements, and the piles have no obvious defects. The single-hole seismic wave method with multiple hydrophones can be better to used to detect the pile lengths and obvious defects of existing bridge foundations.In addition, when longitudinal excitation is adopted (knock on the cover beam, vertical knock on the support), the first arrival time and amplitude of seismic wave are clearer than that of lateral excitation (knock on the pile), which is convenient for interpretation of detection results.By means of the geological conditions exposed by the pile side drilling and the checking calculation of the pile bearing capacity, it is found that the calculated bearing capacity of No.2 bridge pier P2-1 and No. P2-3 pile meets the original design bearing capacity requirements, and the calculated bearing capacity of No. P2-2 pile is about 26% lower than the original design value (514kN). Related Articles | Metrics

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Research on the Application of Screw Anchor Pile Reaction Method in Pile Foundation Detection of Silt Soil ZHU Lie, LIU Bing-kai, ZHOU En-hai, LIU Yong-hui, LI Yan, WU Yan-qun GUABFZHOU ARCHITECTURE    2020, 48 (6): 37-.   Abstract （111）            Knowledge map    Save Screw pile is a kind of precast pile with high strength steel thread developed based on the principle of screw force, which shows remarkable technical advantages over traditional pile type in construction technology, engineering cost, ultimate bearing capacity and environmental impact, and is widely used in foundation treatment engineering. At present, positive progress has been made in the mechanical characteristics and bearing mechanism of screw pile under vertical load, but the theoretical research and engineering application of screw pile as anchor pile in geotechnical engineering test technology are relatively few. In this paper, based on the analysis of the mechanical mechanism of screw pile, a comparison test of the tensile force of screw pile with different characteristics of soil at different pile ends was carried out in the thick silt soil area. And static load test of the engineering test pile was carried out by using the screw pile as anchor pile and reaction device to verify the application effect of the screw pile reaction test in the area of thick silt map. The results show that the characteristics of soil at pile ends and the length of screw segments can significantly improve the uplift capacity of screw piles, while the effect of pile diameter on uplift capacity against uplift is not obvious. Under the condition of the same soil layer, use ф 400 all-steel screw pile and ground type pile tip to cooperate, strong penetrating power, deep buried depth, high efficiency. The reaction force method of screw anchor pile has a good experimental effect when the geological conditions are poor and has a broad application prospect in engineering. The results of this paper provide a reference for the application and popularization of the counter force method of driving a screw anchor pile in the static load test of the foundation pile. Related Articles | Metrics

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Design and Calculation of the Whole Hoisting Installation Process of Steel Inner Cylinder of Large-seize Chimney GUABFZHOU ARCHITECTURE    2020, 48 (5): 33-.   Abstract （97）            Knowledge map    Save For increase the safety reliability of the whole hoisting installation process of steel inner cylinder of large-seize chimney, The 300t steel cylinder inside the chimney of a thermal power plant in Guangzhou is taken as an example, Design and calculation of the whole hoisting installation process of steel inner cylinder of large-seize chimney is optimized, The selection method of welding segment is explained, Various calculation methods are used to check the design of the components of the integral lifting system, At the same time, the whole welding scheme is introduced, The key points of quality and safety control in the construction process are summarized. The actual construction operation shows that: Using various finite element analysis software to calculate and check the lifting equipment, steel strand, anchorage, square frame, circular box girder and lifting lug, could optimize the design of the components of the lifting system; The safety reliability of steel inner cylinder construction process of large chimney is improved; On the premise of ensuring safety, reducing the specifications of lifting strand can effectively increase the operability of on-site construction; The output oil circuit design of lifting jack is consistent to ensure the overall lifting synchronization; Each welding segment is designed as arc plate with height less than 1.8m, which effectively solves the problem of difficult transportation of steel inner cylinder assembly welding segment. By using various calculation methods, the design of integral hoisting components of large chimney steel inner cylinder is reviewed, which greatly increases the safety and reliability of hoisting process, and provides reference for similar engineering construction. Related Articles | Metrics

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Reinforcement Scheme and Construction Technology for Leakage Treatment of Deep Well Foundation Pit LAO Xiao-chun, ZHANG Xing-fei GUABFZHOU ARCHITECTURE    2021, 49 (3): 33-.   Abstract （109）            Knowledge map    Save Leakage occurred in the deep foundation pit of an interval air shaft during the earth excavation. The depth of the leakages is 32m and a great deal of water busted immediately. Firstly, the Metro Jet System (MJS) and WSS methods can not achieve the reinforcement effect. Finally, the method of grouting reinforcement is adopted after the surrounding of underwater low-grade impermeable plain concrete wall and the original end reinforced plain concrete wall is formed on the East and west sides of the foundation pit. After the reinforcement treatment with this method, the velocity and flow value of the measuring hole outside the plain concrete measured by the sonar method are obviously smaller than those of the measuring hole outside the reinforced concrete diaphragm wall (inside the plain concrete wall), and the average velocity values of the 21 measuring holes outside the plain concrete wall are less than 6.0 × 10-6cm / s, it can be seen that the plain concrete wall outside the foundation pit has the expected effect of strengthening the water stop; The tracer test and micro water test show that the permeability coefficient of the soil layer after reinforcement is in the order of 10-4cm / s, the reinforcement effect is obvious, and the surrounding precipitation effect is obviously improved. After reinforcement, no water and sand gushing occurred in the process of re excavation, and the construction of air shaft floor structure was successfully completed, which proved that the reinforcement method was effective. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 27-31.   Abstract （134）      PDF（pc） （223KB）（310）       Knowledge map    Save Related Articles | Metrics

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Research Progress of High-performance Inorganic Artificial Stone HUANG Xi-xuan, LEI Chi, XU Hai-jun, ZHANG Peng GUABFZHOU ARCHITECTURE    2020, 48 (6): 45-.   Abstract （198）            Knowledge map    Save High-performance inorganic artificial stone is a new type of artificial stone developed in recent years. The paper systematically introduces the concept, performance, classification, forming and curing methods of high-performance inorganic artificial stone, focusing on the analysis of high-performance inorganic artificial stone’s modification, as well as research and application status and development trends. The following conclusions are drawn: Compared with ordinary inorganic artificial stone, high-performance inorganic artificial stone has better mechanical and decorative properties; additives and polymers can reduce the water absorption rate of the board and increase the flexural strength of the board; fiber modified materials can significantly improve the toughness of the inorganic artificial stone plate, but the appearance of the plate will be affected when the add amount of fiber modified materials is large. With the improvement of the quality and performance of inorganic artificial stone products, inorganic artificial stone will gradually occupy part of market which belongs to the resin artificial stone and natural stone before and become the mainstream product in building decoration materials. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 45-48.   Abstract （93）      PDF（pc） （431KB）（301）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (2): 30-35.   Abstract （74）      PDF（pc） （520KB）（300）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 36-39.   Abstract （77）      PDF（pc） （529KB）（300）       Knowledge map    Save Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (1): 15-19.   Abstract （71）      PDF（pc） （438KB）（290）       Knowledge map    Save Related Articles | Metrics

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Discussion on Connection Technology of Prefabricated Concrete Structural Members HUANG Shi-ming, ZHU Wen, JI Qiu-gui, LU De-hui, ZHANG Yan-li GUABFZHOU ARCHITECTURE    2020, 48 (6): 16-.   Abstract （132）            Knowledge map    Save The key technology of prefabricated concrete building structure lies in the connection of member nodes. Therefore, a reliable and effective connection technology is a favorable guarantee for the safety and seismic resistance of prefabricated concrete structures. The paper analyzes several common member node connection technologies in engineering and summarizes the advantages and disadvantages of each technology. At the same time, it detail analyzes and elaborates the construction key points of various technologies, to provide reference for the application of prefabricated concrete structure node connection technology. Related Articles | Metrics

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Discussion on the Role and Implementation Path of Digital Construction in the New Construction Industrialization YAO Ming-qiu GUABFZHOU ARCHITECTURE    2021, 49 (3): 51-.   Abstract （119）            Knowledge map    Save This paper introduces the role and implementation path of digital construction in the development of new construction industrialization. An example of prefabricated construction project is given for showing some digital construction techniques and its effects, though adopting digital construction technology, the project construction period is shortened by 25%, the total cost is reduced about 5%,which effectively improves the comprehensive benefits of the project.The essence and basic of intelligent construction and smart construction are digital construction.The coordinated development of intelligent construction and the new construction industrialization must pay more attention to digital construction.The most important direction to promote the development of digital construction is to establish a whole process,full-professional and multi-party information management standard and system based on BIM top-down design. Related Articles | Metrics

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Application of Cantilever Tunneling Machine Construction Method in Short-distance Underneath Passing Existing Subway Lines WANG Chao GUABFZHOU ARCHITECTURE    2020, 48 (6): 33-.   Abstract （104）            Knowledge map    Save With the large-scale development of subway construction, there are more and more cases of subway tunnel construction underneath passing existing subway lines. In order to ensure the safe operation of the subway, it is necessary to strictly control the construction of the subway line. The paper takes the application of cantilever tunneling machine construction method in short-distance underneath passing existing KUANGSHANFA subway tunnel as an example, analyzes the construction key points and safety measures of the cantilever tunneling machine cantilever tunneling machine, and summarizes the advantages and disadvantages of the selection of the cantilever tunneling machine. The project is the first successful application of cantilever tunneling machine construction method in Shenzhen existing subway lines, it is of great reference significance and can provide a reference for the subsequent construction of similar projects. Related Articles | Metrics

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GUABFZHOU ARCHITECTURE    2020, 48 (3): 32-34.   Abstract （136）      PDF（pc） （297KB）（285）       Knowledge map    Save Related Articles | Metrics