9.3.3 Node reinforcement 54

9.4 Anchoring length 54

9.4.1 Beam anchorage length 55

9.4.2 Column anchorage length 56

9.4.3 Anchoring measures 56

Part Ten: Strip Foundation Design 57

10.1 Basic information 57

10.2 Design requirements 57

10.2.1 Determination of foundation depth 59

10.2.2 shear strength index of soil layer 60

10.2.3 Foundation width and soil bearing capacity 61

10.2.4 Foundation width and soil bearing capacity adjustment 62

10.3 Settlement Calculation 63

10.4 Rigid Foundation 64

10.5 Extended Foundation design 65

10.5.1 Reinforcement design 65

Conclusions 66

References 67

Part 1:  Design tasks and information

1.1 Summary of tasks

Design the architecture and structure of a community supermarket in Nanjing. Construction area of 5100 square meters, a concrete frame structure, 3 floors, including sales, warehousing, after-sales service, office, catering, fitness center, property management, tea room and other facilities and functions. Requiring the completion of the supermarket's architectural design and structural design. Geological conditions of the site: see geological survey report. Other conditions refer to specifications and use requirements or in consultation with  the instructor.

1.2 Design information

1.2.1 Basic information

Construction site：Nanjing, Jiangning District.

First Floor Height: 5.9m，Second Floor Height：5.4m，Third Floor height： 4.5m。

Indoor floor elevation：±0.00，Outdoor elevation：-0.40m。

Load standard ： according to 《 Code for load of building structures Specification.

1.2.2 Earthquake fortification

Construction site ： II Class site soil ， Natural foundation ， Design the earthquake group into the first group。

1.2.3 Construction practices

Fill wall：300mm thick External wall with hollow brick, 180mm thick Interior wall hollow brick

Outer rendering：12mm thick, 1:3 mortar rendering，8mm thick 1:1.5 cement

pebbles（Water brush stone）

Inner painting：20mm thick mortar, interior wall paint spray

Roof structure：Two sticky three oil waterproof layer on the shop small bean 20mm thick 1:2.5 Cement mortar leveling layer

Dry shop 100mm thick aerated concrete insulation layer

1:6 Cement coke slag to find slope， 2% slope，lowest point 30mm Reinforced concrete roof panels

Foundation（Spray paint）

Floor construction：10mm thick cement mortar surface layer 20mm thick 1:2.5 Cement mortar leveling layer Reinforced concrete floor panel

Foundation（Spray paint）

1.3 Design Basis

[1] Uniform Standard for Building Drawing（GB/T50001—2010） [2] Building structural drawing standards（GB/T50002—2010） [3] Architectural design code for fire protection（GBJ16—87）

[4] Uniform Standard for Reliability Design of Building Structures （ GB 50068—2001）

[5] Code for load of building structures（GB 50009—2012） [6] Code for design of concrete structures（GB 50010—2010）

[7] Building foundation design specification（GB 50007—2011） [8] Code for design of masonry structures（GB 50003—2011） [9] Code for seismic design of buildings（GB 50011—2010）

[10] Lin Zongfan, Building Structure Principle and Design [M]. Beijing: Higher Education Press 2005.11．

[11] Fan Jin et al. Reinforced concrete basic components [M]. Beijing: China Building Materials Industry Press，2013.1．

[12] Zhao shunbo Design principle of concrete structure [M]. Tongji University Press, 2004.8．

Part 2:  Building program and description

2.1 Overview

According to the design task requirements, the program will be designed for the three-storey supermarket, 69.8m long, 24m wide, total height of 14.75m (from the outdoor floor to the top of the dwelling), and a total construction area of 5025.6m2, that is, there is a public gallery on each floor. The advantages of the inner corridor house are that the exterior wall is complete and it is easy to  make a simple and concise structure layout. The seismic performance is good; the land is relatively more economical; the construction cost is low and the selling price is relatively cheap.