SP monolithic reinforced concrete structures. Reinforced concrete monolithic building structures
SP 52-103-2007
Preface
1 DEVELOPED by the Research, Design and Technological Institute of Concrete and Reinforced Concrete (NIIZhB) - a branch of the Federal State Unitary Enterprise "National Research Center "Construction"
3 APPROVED AND ENTERED INTO EFFECT by order of the acting. general director FSUE "Research Center "Construction" dated July 12, 2007 No. 123.
4 INTRODUCED for the first time
We are getting lighter buildings with more spacious layouts. While the word "prefabricated" may first be associated with something of inferior quality, the view of the most important benefits for an investor changes dramatically once the technology is known. and large savings over many years of use, explains Przemyslav Borek.
It was put into operation twelve months later. It was no different from the next two buildings: Olivia Point and Olivia Tower. They were put into operation in early January of this year. This is more or less in the following proportions: 30% structure, 30% facade and 30% installations.
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Introduction 1 area of use 3 Terms and definitions 4 General instructions 5 Constructive decisions reinforced concrete monolithic buildings 6 Calculation of load-bearing structural systems 6.1 Design scheme 6.2 Calculation requirements 6.3 Calculation methods 7 Carriers reinforced concrete structures Pre-fabricated concrete technology means we build faster than the competition, meaning we speed things up significantly. The use of prefabricated structures, as opposed to traditional method, allows you to eliminate downtime associated with the construction of individual stages of the project. However, this requires careful planning. The production of precast concrete does not depend on weather conditions. This makes it possible to maintain constant control of high quality without better comparison than what is achieved on the construction site. 8 Calculation of load-bearing reinforced concrete structures 9 Design of the main load-bearing reinforced concrete structures of monolithic buildings Appendix A Basic letter designations Appendix B List of regulatory and technical documentation |
Introduction
This Code of Rules has been developed in furtherance SNiP 52-01-2003“Concrete and reinforced concrete structures. Basic provisions".
Walls, ceilings and roof elements can be manufactured at any time. Even when funds are poured onto the construction site. Precast structures are produced sequentially, so you can reduce the cost of formwork that can be reused. It's much more quick way more demanding for the construction of buildings, as well as to facilitate the construction of bulky buildings.
Assembly of individual components is also quick. In many cases you can dispense with scaffolding, which is usually sufficient to support the assemblies. The weight and dimensions of prefabricated units are limited solely by transport and installation devices. It is also worth noting that prefabricated ceilings can have built-in cooling and heating systems. Then the ceiling or heating element is the heating or cooling element.
The volume of construction of buildings for various purposes made of monolithic reinforced concrete in last years increased significantly. At the same time, design practice does not have at its disposal a document that would combine the basic requirements, the fulfillment of which ensures the reliability and safety of this type of building. This Code of Practice aims to fill this gap.
“Using prefabricated elements on site has another benefit.” Construction sites as we know them most often mean traffic, chaos and noise. Thanks to the use of prefabricated structures, work on it will take up to 14 months, adds Miroslav Zalewski. Limiting the work performed on a construction site to an unnecessary minimum will result in significant economic benefits. Thanks to this, it is possible to construct buildings that meet the highest requirements in terms of functionality, energy efficiency and ecology.
The decision on the application of this Code of Practice when designing monolithic buildings falls within the competence of the customer or design organization. If a decision is made to apply this Code of Practice, all requirements established therein must be met.
The set of rules was developed by Dr. Tech. Sciences A.S. Zalesov, A.S. Semchenkov, E.A. Chistyakov, S.B. Krylov, Ph.D. tech. sciences R.Sh. Sharipov(NIIZhB - branch of the Federal State Unitary Enterprise "Research Center "Construction").
The potential of specific prefabricated structures can also be demonstrated by the fact that such elements can be of significant size. Like, for example, 40-meter beams, which make it easier to build overpasses on existing roads without closing or restricting traffic. The book examines the design and construction of reinforcement, shows how accessories are typically used, clarifies fastening and connecting reinforcement, and presents methods for designing and constructing prefabricated monolithic ceilings, slab beams, and interesting moves on pillboxes.
SP 52-103-2007
CODE OF RULES FOR DESIGN AND CONSTRUCTION
Reinforced concrete monolithic building structures
CONCRETEMONOLITHICBUILDINGSTRUCTURES
Date of introduction 2007-07-15
1 area of use
SNiP 52-01-2003 Concrete and reinforced concrete structures. Basic provisions
SP 52-101-2003 Concrete and reinforced concrete structures without prestress fittings
Protection of concrete structures from fire. The author, most often based on research results, presents specific examples designs that are intended to inspire design with awareness of the enormous impact that building decisions have on the safety, usability and durability of a structure. What is very important is that the author touches on topics that have not yet been discussed in Polish specialized literature or are currently difficult to access. A huge plus of the book is its rich illustrations, thanks to which the reader can easily grasp the physical form of the presented elements and their details.
SP 52-104-2004 Steel fiber concrete structures.
3 Terms and definitions
This Code of Rules uses basic terms and definitions for SNiP 52-01, SP 52-101, SP 52-104 and other regulatory documents.
4 General instructions
4.1 The recommendations of this Code of Practice apply to the design of various structural systems of buildings, in which all the main load-bearing structures (columns, walls, floors, coverings, foundations) are made of monolithic reinforced concrete with rigid and flexible joints between them.
It is also worth paying attention to the rather large collection of technical tables. The author also attached a list of signs that make it easier to acquire new ideas. There are also symbols in the text that suggest at what stage of learning some material is likely to be useful to us. A flaw that can be seen in the book is that it does not take into account the topic of cross-sectional dimensions of reinforced concrete and construction drawings elements. However, it is easy to find information on this topic in other textbooks, which the author himself refers to.
The book is intended mainly for the subject: concrete structures. However, it can also be used in general construction and other projects where elements and structures are calculated and constructed. For the first time, “European” standards were considered as the main norms, and “Polish” standards remained as a guideline or complemented the shortcomings of Eurocode 2 and related standards. The first volume is the distillation of the basic knowledge that an engineer should have about the design of reinforced concrete structures.
4.2 Design of building structures exposed to climatic temperature and humidity influences should be carried out according to SNiP 2.01.07.
4.3 Calculation and design of buildings under seismic influences should be carried out in accordance with WITHnIPII-7 . Fire resistance of structures and fire safety of buildings must meet the requirements SNiP 21-01 And STO 36554501-006.
We will find here not only pure calculation procedures, but also a wide range of photographs and additional tables. The author presented the text of the textbook markup, the purpose of which is to divide the material into that which is necessary for mastering engineering surveys and that which will be acquired during master's and postgraduate studies. Among the issues that we can achieve for this volume are: combination of loads, rules for drawing reinforced concrete structures, general rules for dimensional reinforcement with detailed description of all types of joints used and their detailed drawings, as well as a chapter on fire and the protection of concrete structures for fire. The subject has been included in the first half of the volume.
4.4 Load-bearing structures of the building should be designed taking into account durability and maintainability in accordance with SNiP 31-01, protection of structures from corrosion should be carried out according to the instructions SNiP 2.03.11.
4.5 The values of the maximum deformations of the foundation of buildings are regulated SNiP 2.02.01. Maximum deflections, movements of structures and distortions of vertical and horizontal cells of buildings should not exceed the permissible values given in SNiP 2.01.07.
4.6 For buildings designed for the combined influence of vertical and horizontal loads according to a non-deformed scheme, the deflection of the top of the building, taking into account the compliance of the base, is recommended to be no more than 0.001 of the height of the building. For large deflections, it is necessary to perform calculations using a deformed diagram. In this case, the deflection value of the building should not exceed 0.002 of its height.
4.7 This Code of Practice should be used in conjunction with SP 52-101 And SP 52-104.
4.8 Reinforced concrete structures must be designed in such a way as to prevent the occurrence of all types of limit states with sufficient reliability. This is achieved by selecting material quality indicators, assigning dimensions and designing in accordance with the recommendations of this SP and current regulatory documents. In this case, the technological requirements for the manufacture of structures must be met, the requirements for the operation of buildings must be met, as well as the requirements for ecology, energy saving, fire safety and durability established by the relevant regulatory documents, and uneven settlement of the foundation must be taken into account.
4.9 When designing reinforced concrete structures, their reliability must be established by calculation based on the limit states of the first and second groups by using the calculated values of loads and material characteristics, determined using the corresponding partial reliability coefficients based on the standard values of these characteristics, taking into account the degree of responsibility of the buildings.
Standard values of loads, load combination coefficients and structural reliability factors, as well as the division of loads into permanent and temporary (long-term and short-term) should be taken in accordance with SNiP 2.01.07.
The order of application of constant and long-term loads should be determined by the work schedule or in fact.
4.10 Along with monitoring the strength of concrete using samples, it is recommended to monitor the strength of concrete in the finished structure using non-destructive methods according to GOST 22690.
4.11 When using A500C class reinforcement with an effective profile developed at NIIZhB, you should use the recommendations STO 36554501-005. End joining of reinforcement at the construction site should be carried out using welding, as well as screw and pressed mechanical connections.
It is recommended to use small-diameter reinforcement in an expanded range: 5.5; 6; 6.5; 7; 8; 9; 10; eleven; 12 mm of a new periodic profile with a square-shaped core with rounded corners in accordance with TU 14-1-5500, TU 14-1-5501.
System of regulatory documents in construction
SET OF RULES
DESIGN AND CONSTRUCTION
REINFORCED CONCRETE MONOLITHIC
BUILDING STRUCTURES
SP 52-103-2007
Moscow
Preface
1 DEVELOPED by the Research, Design and Technological Institute of Concrete and Reinforced Concrete (NIIZhB) - a branch of the Federal State Unitary Enterprise "National Research Center "Construction"
3 APPROVED AND ENTERED INTO EFFECT by order of the acting. General Director of the Federal State Unitary Enterprise "Research Center "Construction" dated July 12, 2007 No. 123.
4 INTRODUCED for the first time
Introduction 1 area of use 3 Terms and definitions 4 General instructions 5 Structural solutions for reinforced concrete monolithic buildings 6 Calculation of load-bearing structural systems 6.1 Design scheme 6.2 Calculation requirements 6.3 Calculation methods 7 Load-bearing reinforced concrete structures 8 Calculation of load-bearing reinforced concrete structures 9 Design of the main load-bearing reinforced concrete structures of monolithic buildings Appendix A Basic letter designations Appendix B List of regulatory and technical documentation |
Introduction
This Code of Rules was developed as a development of SNiP 52-01-2003 “Concrete and reinforced concrete structures. Basic provisions".
The volume of construction of buildings for various purposes made of monolithic reinforced concrete has increased significantly in recent years. At the same time, design practice does not have at its disposal a document that would combine the basic requirements, the fulfillment of which ensures the reliability and safety of this type of building. This Code of Practice aims to fill this gap.
The decision on the application of this Code of Practice when designing monolithic buildings falls within the competence of the customer or design organization. If a decision is made to apply this Code of Practice, all requirements established therein must be met.
The set of rules was developed by Dr. Tech. Sciences A.S. Zalesov, A.S. Semchenkov, E.A. Chistyakov, S.B. Krylov, Ph.D. tech. sciences R.Sh. Sharipov(NIIZhB - branch of the Federal State Unitary Enterprise "Research Center "Construction").
SP 52-103-2007
CODE OF RULES FOR DESIGN AND CONSTRUCTION
REINFORCED CONCRETE MONOLITHIC BUILDING STRUCTURES
CONCRETE MONOLITHIC
BUILDING STRUCTURES
Date of introduction 2007-07-15
1 area of use
2 Normative references
SNiP 52-01-2003 Concrete and reinforced concrete structures. Basic provisions
SP 52-101-2003 Concrete and reinforced concrete structures without prestressing reinforcement
SP 52-104-2004 Steel-fiber concrete structures.
3 Terms and definitions
This Code of Rules uses the basic terms and definitions according to SNiP 52-01, SP 52-101, SP 52-104 and other regulatory documents.
4 General instructions
4.1 The recommendations of this Code of Practice apply to the design of various structural systems of buildings, in which all the main load-bearing structures (columns, walls, floors, coverings, foundations) are made of monolithic reinforced concrete with rigid and flexible joints between them.
4.2 The design of building structures exposed to climatic temperature and humidity influences should be carried out in accordance with SNiP 2.01.07.
4.3 Calculation and design of buildings under seismic impacts should be carried out in accordance with SNiP II-7. The fire resistance of structures and the fire safety of buildings must meet the requirements of SNiP 21-01 and STO 36554501-006.
4.4 The load-bearing structures of the building should be designed taking into account durability and maintainability in accordance with SNiP 31-01, protection of structures from corrosion should be carried out in accordance with the instructions of SNiP 2.03.11.
4.5 The values of the maximum deformations of the foundation of buildings are regulated by SNiP 2.02.01. Maximum deflections, movements of structures and distortions of vertical and horizontal cells of buildings should not exceed the permissible values given in SNiP 2.01.07.
4.6 For buildings designed for the combined influence of vertical and horizontal loads according to a non-deformed scheme, the deflection of the top of the building, taking into account the compliance of the base, is recommended to be no more than 0.001 of the height of the building. For large deflections, it is necessary to perform calculations using a deformed diagram. In this case, the deflection value of the building should not exceed 0.002 of its height.
4.7 This Code of Rules should be applied in conjunction with SP 52-101 and SP 52-104.
4.8 Reinforced concrete structures must be designed in such a way as to prevent the occurrence of all types of limit states with sufficient reliability. This is achieved by selecting material quality indicators, assigning dimensions and designing in accordance with the recommendations of this SP and current regulatory documents. In this case, the technological requirements for the manufacture of structures must be met, the requirements for the operation of buildings must be met, as well as the requirements for ecology, energy saving, fire safety and durability established by the relevant regulatory documents, and uneven settlement of the foundation must be taken into account.
4.9 When designing reinforced concrete structures, their reliability must be established by calculation based on the limit states of the first and second groups by using the calculated values of loads and material characteristics, determined using the corresponding partial reliability coefficients based on the standard values of these characteristics, taking into account the degree of responsibility of the buildings.
Standard values of loads, load combination factors and structural reliability factors, as well as the division of loads into permanent and temporary (long-term and short-term) should be adopted in accordance with SNiP 2.01.07.
The order of application of constant and long-term loads should be determined by the work schedule or in fact.
4.10 Along with monitoring the strength of concrete using samples, it is recommended to monitor the strength of concrete in the finished structure using non-destructive methods in accordance with GOST 22690.
4.11 When using A500C class reinforcement with an effective profile developed at NIIZhB, the recommendations of STO 36554501-005 should be used. End joining of reinforcement at the construction site should be carried out using welding, as well as screw and pressed mechanical connections.
It is recommended to use small-diameter reinforcement in an expanded range: 5.5; 6; 6.5; 7; 8; 9; 10; eleven; 12 mm of a new periodic profile with a square-shaped core with rounded corners in accordance with TU 14-1-5500, TU 14-1-5501.
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