This code is formulated to implement the national technical and economic policies in the investigation and design of civil building repair projects, restore and improve the original use functions of houses, extend the service life of houses, achieve advanced technology, economic rationality, safety and applicability, and ensure quality. This code is applicable to the investigation and design of the repair projects of existing low-rise and multi-story civil buildings in cities. JGJ 117-1998 Civil Building Repair Project Investigation and Design Code JGJ117-1998 Standard Download Decompression Password: www.bzxz.net

Engineering Construction Standard Full-text Information System
Industry Standard of the People's Republic of China
Specification for Engineering ExaminationandDesign of Repairing Civil ArchitectureJGJ117—98
1999Beijing
Engineering Construction Standard Full-text Information System
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Industry Standard of the People's Republic of China
Specification for Engineering Examinationand Design of Repairing Civil Architecture ArchitecturJGJ117—98
Editing unit: Shanghai Housing and Land Administration BureauApproving unit: Ministry of Construction of the People's Republic of ChinaEffective date: March 1, 1999
1999 Beijing
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Notice on the release of the industry standard "Civil Building Renovation Engineering Investigation and Design Code"
Jianbiao [1998] No. 168
In accordance with the requirements of the Ministry of Construction's "Notice on Issuing the 1995 Plan for the Preparation and Revision of Standards, Specifications and Regulations of the Ministry of Urban and Rural Construction and Environmental Protection" ([85 Chengke Zi No. 239), the "Civil Building Renovation Engineering Investigation and Design Code" edited by the Shanghai Housing and Land Administration Bureau has been reviewed and approved as a mandatory industry standard, numbered JGJ117—98, and will be implemented on March 1, 1999.
This standard is managed by the Shanghai Housing Science Research Institute, the technical unit responsible for real estate standards under the Ministry of Construction, and its interpretation is undertaken by the Shanghai Housing and Land Administration Bureau. This standard is published by the China Building Industry Press organized by the Standard and Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
September 14, 1999
Engineering Construction Standards Full Text Information System
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Basic Provisions
Repair and Investigation
Setting of Joints
Foundation and Substructure
General Provisions:
4.2 Foundation Reinforcement
Foundation Underpinning
Electricity and Electricity
Foundation Expansion
Excavation and Correction
Masonry Structure
General Provisions
Electricity and Electricity
Masonry Bowing and Tilt
Masonry Cracks
Ring Beam and Lintel
Construction Requirements|| tt||Wood structure
General provisions
6.4 Beams, joists, and rubbing strips
Roof truss deviation correction
Engineering construction standard full text information system
Engineering construction standard full text information system
6.7 Litiao frame Huazheng
6.8 Structural requirements
.......
6.9 Fire prevention
6.10 Anti-corrosion and insect prevention
7 Concrete structure
General provisions
7.2 Materials
Beams and poles
Structural requirements
Steel joints
General provisions
8.2 Materials
Beams, joists, and rubbing strips
Welding and bolting of steel components||t t||Maintenance of steel components
Repair of leaks in houses
General provisions
Roof·
Exterior walls
Basement
Housing decoration
General provisions…
Doors and windows·
Floor
10.5 Plastering
10.6 Decorative panels
10.7 Paint, slurry, glass
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Full text information system of engineering construction standards
1 Electrical lighting.
General provisions
Line protection devices
Wires and electric pipes
Lightning protection and grounding devices
Ground fault protection
12 Water supply, drainage and heating||tt| |General Provisions
12.2 Materials
123 Water Supply Pipes
Drainage Pipes
Sanitary Ware
Heating Pipes and Equipment
Ventilation Pipes
Application of this Code
Additional Notes
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
1.0.1 This Code is formulated to implement the national technical and economic policies in the investigation and design of civil building renovation projects, restore and improve the use functions of the original houses, extend the service life of the houses, achieve advanced technology, reasonable economy, safety and applicability, and ensure quality. 1.0.2 This Code applies to the investigation and design of the renovation projects of the original low-rise and multi-story civil buildings in the city.
1.0.3 The investigation and design of civil building renovation projects, in addition to complying with this Code, shall also comply with the provisions of the relevant mandatory standards currently in force in the country. Engineering Construction Standard Full Text Information System
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2.0.1 The main symbols of foundation and base should comply with the following provisions: (1) Action and effect of action
Maximum bending moment
M. — Maximum bending moment in α direction,
M——Maximum bending moment in b direction;
-Average reaction force at the bottom of the beam,
-Soil reaction force per unit area of ​​the bottom surface of the foundation under load; P.
-Standard value of vertical bearing capacity of a single pile;
-Standard value of pile pressure;
Maximum shear force.
() Calculation index
Design value of tensile strength of concrete;
Design value of tensile strength of anchor rod,
Grouting pressure;
-Design value of uniformly distributed load of inverted beam.
(Sub)geometric parameters
The sum of the polygonal surfaces used in calculating the shear load in the a-direction: -6The area of ​​the polygon used in calculating the shear load in the a-direction; the cross-sectional area of ​​the pile body;
The foundation width of the expanded part in the a-direction;
-The upper side length of the most unfavorable section of the shear failure cone in the a-direction, am——the average width of the trapezoidal shearing surface in the a-direction; 6——the foundation length of the expanded part in the b-direction, base width; foundation width; b5The upper side length of the most unfavorable section of the shear failure cone in the b-direction, be
-the width of the original foundation;
Engineering Construction Standard Full-text Information System
.Engineering Construction Standard Full-text Information System
-the average width of the trapezoidal shearing surface in the b-direction,
bn——the width of the newly added foundation beam
-the diameter of the anchor rod;
ho——the effective height of the foundation;| |tt||- Spacing between cantilever beams,
- Length of base;
Length of each pile section divided by soil layer;
- Number of anchor rods embedded in each pile hole; - Spherical diffusion radius;
Radius of grouting pipe
- Combined design value of load effect transmitted from the upper wall; Grouting time;
Length around the pile body;
Earthwork volume,
Settlement difference; ||tt| |Calculation coefficient
Void rate of sand soil
Safety factor;
-Permeability coefficient of sand soil;
β——Ratio of slurry viscosity to water viscosity;
Reduction coefficient of pile bearing capacity
Main symbols of masonry structure shall comply with the following provisions: 2.0.2
(I) Action and action effect
-Compressive bearing capacity of reinforced brick column;
N.——Brick column bearing capacity increased by masonry strength;Ca——Stress of tension limb steel Aa,
-Stress of tension steel bar A.
(I) Calculation index
f:—Design value of compressive strength of newly built wall column; Engineering Construction Standard Full Text Information System
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fa——Design value of compressive strength of reinforced steel; f. ——Design value of axial compressive strength of concrete or mortar of newly added wall column; foa
——Design value of tensile strength of slab.
(III) Geometric parameters
——Area of ​​the original brick masonry under compression;
——Cross-sectional area of ​​newly built wall column;
Cross-sectional area of ​​tensile reinforced steel;
——Cross-sectional area of ​​compressive reinforced steel,
——Cross-sectional area of ​​newly added wall column;
Steel screen A, distance from the center of gravity to the nearer side of the cross section;-Height of cross section;
——Area moment of the area of ​​the compressed part of the wall column to the center of gravity of the steel bar A.; Area moment of the area of ​​the compressed part of the masonry to the center of gravity of the tensile steel bar A. (IV) Calculation coefficients
Material strength reduction coefficient of newly added concrete wall columns; Material strength reduction coefficient of newly poured concrete: Strength coefficient of compressive reinforcement;
Volume reinforcement ratio when using single-leg slabs;
Effect coefficient of volume reinforcement ratio,
height-to-thickness ratio β and eccentricity e of axial force on the bearing capacity of compressive members;
Effect coefficient of height-to-thickness ratio, reinforcement ratio and eccentricity of axial force on the bearing capacity of compressive members of mesh reinforced brick masonry.
2.0.3 The main symbols of the wood structure shall comply with the following provisions: (I) Action effect
M1——Bending moment of the joist and the strip at R1; MzBending moment of the joist and the strip at B
M—Design value of bending moment of a pair of member section axes; Engineering Construction Standard Full Text Information System
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M, Design value of bending moment of a pair of member section g axis,——Deflection along the member section axis calculated according to the combination of short-term effects of loads;
Deflection along the member section axis calculated according to the combination of short-term effects of loads.
(I) Calculation index
Reaction force of the joist and the strip at the bolt.
(Sub)Geometric parameters
Calculated area of ​​the cross section of the compression member,
Number of faces of the shear surface:
Number of bolts at R1;
Number of bolts at R2;
Area moment of the gross cross-sectional area above the shear surface to the neutral axis; Distance between bolts,
Net section resistance moment to the x-axis of the member section; Net section resistance moment to the 9-axis of the member section. (v) Calculation coefficients
An old wood reduction factor.
2.0.4 The main symbols of concrete structures shall comply with the following provisions: (I) Actions and effects of actions
Bending moment of a single member
-Bending moment that the external steel frame should bear;
Design value of bending bearing capacity of the upper section of the reinforced beamAxial force of the compression member;
-Axial force that the external steel frame should bear; Ne-Euler critical force in the plane of moment actionV-Design value of maximum shear force on the inclined section of the member; Design value of shear force at the place where bent steel bars are arranged
-Shear force distributed to each member;
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Reinforcement stress caused by standard bending moment M generated by standard value of external load; s2-Reinforcement stress caused by standard bending moment M generated by standard value of external load after reinforcement.
(I) Calculation index
E1——Elastic modulus of original concrete component; E2
Elastic modulus of newly added concrete component;
Elastic modulus of reinforced steel,
-Section stiffness;
-Design value of compressive strength of reinforced steel plate;
Design value of tensile strength of reinforced steel plate;
Design value of compressive strength of limb rod or reinforced steel; New design value of axial compressive strength of concrete; Design value of bending compressive strength of reinforced concrete; Design value of main shear strength of bonded concrete,
Design value of shear strength of steel-to-steel bond;
Design value of tensile strength of tensile steel bars used for reinforcement: New design value of compressive strength of longitudinal steel bars of concrete; Design value of tensile strength of stirrups.
(Sub)geometric parameters
- Cross-sectional area of ​​a single-leg compression rod;bZxz.net
Sectional area of ​​steel
Cross-sectional area of ​​reinforced section steel;
Cross-sectional area of ​​a single-leg hoop plate,
Cross-sectional area of ​​concrete;
- Cross-sectional area of ​​newly added concrete;
As—— Cross-sectional area of ​​tensile reinforcement for reinforcement; As—— Cross-sectional area of ​​bent steel bars in the same bending plane;4
- Cross-sectional area of ​​newly added longitudinal reinforcement,
- From the combined force point of the original column tensile reinforcement and the reinforced reinforcement to the tensile edge of the reinforced section Engineering Construction Standard Full Text Information System
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