Skip to main content

The loads Acting on staircase.

Distribution of Loads and its Effect on Staircase Stair slabs are usually designed to resist gravity loads, comprising of dead loads and live loads as described below: 
1) Dead Load: The components of the dead load to be considered are:
a) Self-weight of stair slab (tread/tread-riser slab/waist slab)
b) Self-weight of ...

 LIVE LOADS:-
IS 875 parts II specifies the load to be considered as UDL of intensity 5KN/m2 for public 
buildings and 3kN/m2 for residential building where the specified floor do not exceed 2kN/m2 and the staircases are should not liable for overcrowding.

 DEAD LOADS:-
Self-weight of stair slab which includes the waist slab, tread-rise,etc. Self-weight of finishes (0.5 to 1 kN/m?)
Types of stairs                                                                                            
  • Straight flight stairs.
  • Dog legged stairs.
  • Open newel stairs.
  • Quarter turn stairs.
  • Bifurcated stairs.
  • Geometrical stairs.
  • Spiral stairs.                                     

सीढ़ी का वितरण और सीढ़ी सीढ़ी पर इसके प्रभाव को आमतौर पर गुरुत्वाकर्षण भार का विरोध करने के लिए डिज़ाइन किया गया है, जिसमें मृत भार और लाइव लोड शामिल हैं:

1) डेड लोड: माने जाने वाले डेड लोड के घटक हैं:

ए) सीढ़ी स्लैब का स्व-वजन (चलने / चलने-उठने वाले स्लैब / कमर स्लैब)

बी) के स्वयं के वजन ...

लाइव लोड: -
IS 875 भाग II लोड को जनता के लिए तीव्रता 5KN / m2 के UDL के रूप में माना जाता है
आवासीय भवन के लिए भवन और 3kN / m2 जहां निर्दिष्ट मंजिल 2kN / m2 से अधिक नहीं है और सीढ़ियों को भीड़भाड़ के लिए उत्तरदायी नहीं होना चाहिए।

DEAD LOADS: -
सीढ़ी स्लैब का आत्म-वजन जिसमें कमर की पटिया, चलना-बढ़ना आदि शामिल हैं। खत्म का आत्म-वजन (0.5 से 1 kN / m?)

सीढ़ियों के प्रकार
सीधी उड़ान की सीढ़ियाँ।
कुत्ते ने सीढ़ियाँ चढ़ दीं।
नई सीढ़ियां खोलें।
क्वार्टर मोड़ सीढ़ियाँ।
द्विभाजित सीढ़ियों।
ज्यामितीय सीढ़ियाँ।
घुमावदार सीढ़ियाँ।


Labels:
Location: India

Comments

Post a Comment

If you have any doubts,please let me know.

Popular posts from this blog

MACHINE FOUNDATION.

MACHINE FOUNDATION. The design of machine foundation involves careful study of the vibration characteristics of the foundation system. Relevant data for the design and construction of the foundation of machine should be obtained from the manufacturer of the machine , prior to the start design.  All parts of machine foundation should be designed for maxim stresses due to the worst combination of vertical loads, torque, longitudinal and transverse forces, stresses due to temperature variation and the foundation dead load. In case, the foundation layout is partly built up of beam and column construction , straight bars should be provided both at top and bottom of the beams and the spacing of the stirrups should be close. The main foundation block should have the designed thickness and should be reinforced both at top and bottom even if the reinforcements are not required from design considerations. Machine foundations  are special types of  foundations  required fo...
Post a Comment
Read more

Concrete Mix Design

Concrete Mix Design Concrete mix design is the method of optimally dosing various components of concrete,such as cement, aggregates, water,and additives, to make concrete less costly and will have specific  workability and homogeneity properties in the fresh state and strength and durability in the hardened state. Purpose of concrete mixes The main objective of the dosage of concrete mixes is to make a concrete that has the following characteristics: 1. Satisfy viability requirements in terms of drop to facilitate placement and consolidation. 2. Meets resistance requirements. 3.  Can be mixed, transported, placed and compacted efficiently. 4. Economical to manufacture. 5. Meets durability requirements to withstand the environment in which the structure is expected to serve Mixing ratio procedure Step 1. Calculate the target average compressive strength for the mixing ratio: The target 28-day average compressive strength according to clause 3.2 of IS 10262. ft = fck + 1.65...
Post a Comment
Read more

Column

Column.  A column may be defined as an isolated vertical load bearing member the width of which is neither less than its thickness nor more than four times its thickness. Pier is a vertical load bearing member similar to a column except that it is bonded into load beating wall at the sides to form an integral part and extends to full height of the wall. A pier is introduced to increase the stiffness of the wall to carry additional load or to carry vertical concentrated load. Pier also strengthens the wall to resist lateral pressure without buckling. a supporting pillar especially : one consisting of a usually round shaft, a capital, and a base a colonnade of marble columns. something resembling a  column  in form, position, or function a  column  of water columns of smoke. The  row  is an order in which people, objects or figures are placed alongside or in a straight line. A vertical division of facts, figures or any other details based on category, ...
Post a Comment
Read more